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Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw 

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (27 commits)
  GFS2: Use DEFINE_SPINLOCK
  GFS2: Fix use-after-free bug on umount (try #2)
  Revert "GFS2: Fix use-after-free bug on umount"
  GFS2: Streamline alloc calculations for writes
  GFS2: Send useful information with uevent messages
  GFS2: Fix use-after-free bug on umount
  GFS2: Remove ancient, unused code
  GFS2: Move four functions from super.c
  GFS2: Fix bug in gfs2_lock_fs_check_clean()
  GFS2: Send some sensible sysfs stuff
  GFS2: Kill two daemons with one patch
  GFS2: Move gfs2_recoverd into recovery.c
  GFS2: Fix "truncate in progress" hang
  GFS2: Clean up & move gfs2_quotad
  GFS2: Add more detail to debugfs glock dumps
  GFS2: Banish struct gfs2_rgrpd_host
  GFS2: Move rg_free from gfs2_rgrpd_host to gfs2_rgrpd
  GFS2: Move rg_igeneration into struct gfs2_rgrpd
  GFS2: Banish struct gfs2_dinode_host
  GFS2: Move i_size from gfs2_dinode_host and rename it to i_disksize
  ...
This commit is contained in:
Linus Torvalds 2009-01-05 18:52:54 -08:00
parent e42e4ba07b eb8374e71f
commit c54febae99
43 changed files with 967 additions and 1087 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
fs/gfs2/Makefile
View File

@ -1,5 +1,5 @@
obj-$(CONFIG_GFS2_FS) += gfs2.o
gfs2-y := acl.o bmap.o daemon.o dir.o eaops.o eattr.o glock.o \
gfs2-y := acl.o bmap.o dir.o eaops.o eattr.o glock.o \
glops.o inode.o log.o lops.o locking.o main.o meta_io.o \
mount.o ops_address.o ops_dentry.o ops_export.o ops_file.o \
ops_fstype.o ops_inode.o ops_super.o quota.o \

2
fs/gfs2/acl.c
View File

@ -91,7 +91,7 @@ static int acl_get(struct gfs2_inode *ip, int access, struct posix_acl **acl,
struct gfs2_ea_location el_this;
int error;
if (!ip->i_di.di_eattr)
if (!ip->i_eattr)
return 0;
memset(&er, 0, sizeof(struct gfs2_ea_request));

77
fs/gfs2/bmap.c
View File

@ -75,9 +75,9 @@ static int gfs2_unstuffer_page(struct gfs2_inode *ip, struct buffer_head *dibh,
void *kaddr = kmap(page);
memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
ip->i_di.di_size);
memset(kaddr + ip->i_di.di_size, 0,
PAGE_CACHE_SIZE - ip->i_di.di_size);
ip->i_disksize);
memset(kaddr + ip->i_disksize, 0,
PAGE_CACHE_SIZE - ip->i_disksize);
kunmap(page);
SetPageUptodate(page);
@ -132,7 +132,7 @@ int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page)
if (error)
goto out;
if (ip->i_di.di_size) {
if (ip->i_disksize) {
/* Get a free block, fill it with the stuffed data,
and write it out to disk */
@ -159,7 +159,7 @@ int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page)
di = (struct gfs2_dinode *)dibh->b_data;
gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
if (ip->i_di.di_size) {
if (ip->i_disksize) {
*(__be64 *)(di + 1) = cpu_to_be64(block);
gfs2_add_inode_blocks(&ip->i_inode, 1);
di->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode));
@ -926,7 +926,7 @@ static int do_grow(struct gfs2_inode *ip, u64 size)
}
}
ip->i_di.di_size = size;
ip->i_disksize = size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
@ -1033,7 +1033,7 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
goto out;
if (gfs2_is_stuffed(ip)) {
ip->i_di.di_size = size;
ip->i_disksize = size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
@ -1045,9 +1045,9 @@ static int trunc_start(struct gfs2_inode *ip, u64 size)
error = gfs2_block_truncate_page(ip->i_inode.i_mapping);
if (!error) {
ip->i_di.di_size = size;
ip->i_disksize = size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
ip->i_di.di_flags |= GFS2_DIF_TRUNC_IN_PROG;
ip->i_diskflags |= GFS2_DIF_TRUNC_IN_PROG;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
}
@ -1114,13 +1114,13 @@ static int trunc_end(struct gfs2_inode *ip)
if (error)
goto out;
if (!ip->i_di.di_size) {
if (!ip->i_disksize) {
ip->i_height = 0;
ip->i_goal = ip->i_no_addr;
gfs2_buffer_clear_tail(dibh, sizeof(struct gfs2_dinode));
}
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
ip->i_di.di_flags &= ~GFS2_DIF_TRUNC_IN_PROG;
ip->i_diskflags &= ~GFS2_DIF_TRUNC_IN_PROG;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
gfs2_dinode_out(ip, dibh->b_data);
@ -1205,9 +1205,9 @@ int gfs2_truncatei(struct gfs2_inode *ip, u64 size)
if (gfs2_assert_warn(GFS2_SB(&ip->i_inode), S_ISREG(ip->i_inode.i_mode)))
return -EINVAL;
if (size > ip->i_di.di_size)
if (size > ip->i_disksize)
error = do_grow(ip, size);
else if (size < ip->i_di.di_size)
else if (size < ip->i_disksize)
error = do_shrink(ip, size);
else
/* update time stamps */
@ -1219,7 +1219,7 @@ int gfs2_truncatei(struct gfs2_inode *ip, u64 size)
int gfs2_truncatei_resume(struct gfs2_inode *ip)
{
int error;
error = trunc_dealloc(ip, ip->i_di.di_size);
error = trunc_dealloc(ip, ip->i_disksize);
if (!error)
error = trunc_end(ip);
return error;
@ -1230,35 +1230,6 @@ int gfs2_file_dealloc(struct gfs2_inode *ip)
return trunc_dealloc(ip, 0);
}
/**
* gfs2_write_calc_reserv - calculate number of blocks needed to write to a file
* @ip: the file
* @len: the number of bytes to be written to the file
* @data_blocks: returns the number of data blocks required
* @ind_blocks: returns the number of indirect blocks required
*
*/
void gfs2_write_calc_reserv(struct gfs2_inode *ip, unsigned int len,
unsigned int *data_blocks, unsigned int *ind_blocks)
{
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
unsigned int tmp;
if (gfs2_is_dir(ip)) {
*data_blocks = DIV_ROUND_UP(len, sdp->sd_jbsize) + 2;
*ind_blocks = 3 * (sdp->sd_max_jheight - 1);
} else {
*data_blocks = (len >> sdp->sd_sb.sb_bsize_shift) + 3;
*ind_blocks = 3 * (sdp->sd_max_height - 1);
}
for (tmp = *data_blocks; tmp > sdp->sd_diptrs;) {
tmp = DIV_ROUND_UP(tmp, sdp->sd_inptrs);
*ind_blocks += tmp;
}
}
/**
* gfs2_write_alloc_required - figure out if a write will require an allocation
* @ip: the file being written to
@ -1276,6 +1247,7 @@ int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
struct buffer_head bh;
unsigned int shift;
u64 lblock, lblock_stop, size;
u64 end_of_file;
*alloc_required = 0;
@ -1291,19 +1263,12 @@ int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
*alloc_required = 1;
shift = sdp->sd_sb.sb_bsize_shift;
if (gfs2_is_dir(ip)) {
unsigned int bsize = sdp->sd_jbsize;
lblock = offset;
do_div(lblock, bsize);
lblock_stop = offset + len + bsize - 1;
do_div(lblock_stop, bsize);
} else {
u64 end_of_file = (ip->i_di.di_size + sdp->sd_sb.sb_bsize - 1) >> shift;
lblock = offset >> shift;
lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift;
if (lblock_stop > end_of_file)
return 0;
}
BUG_ON(gfs2_is_dir(ip));
end_of_file = (ip->i_disksize + sdp->sd_sb.sb_bsize - 1) >> shift;
lblock = offset >> shift;
lblock_stop = (offset + len + sdp->sd_sb.sb_bsize - 1) >> shift;
if (lblock_stop > end_of_file)
return 0;
size = (lblock_stop - lblock) << shift;
do {

34
fs/gfs2/bmap.h
View File

@ -10,10 +10,40 @@
#ifndef __BMAP_DOT_H__
#define __BMAP_DOT_H__
#include "inode.h"
struct inode;
struct gfs2_inode;
struct page;
/**
* gfs2_write_calc_reserv - calculate number of blocks needed to write to a file
* @ip: the file
* @len: the number of bytes to be written to the file
* @data_blocks: returns the number of data blocks required
* @ind_blocks: returns the number of indirect blocks required
*
*/
static inline void gfs2_write_calc_reserv(const struct gfs2_inode *ip,
unsigned int len,
unsigned int *data_blocks,
unsigned int *ind_blocks)
{
const struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
unsigned int tmp;
BUG_ON(gfs2_is_dir(ip));
*data_blocks = (len >> sdp->sd_sb.sb_bsize_shift) + 3;
*ind_blocks = 3 * (sdp->sd_max_height - 1);
for (tmp = *data_blocks; tmp > sdp->sd_diptrs;) {
tmp = DIV_ROUND_UP(tmp, sdp->sd_inptrs);
*ind_blocks += tmp;
}
}
int gfs2_unstuff_dinode(struct gfs2_inode *ip, struct page *page);
int gfs2_block_map(struct inode *inode, sector_t lblock, struct buffer_head *bh, int create);
int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsigned *extlen);
@ -21,10 +51,6 @@ int gfs2_extent_map(struct inode *inode, u64 lblock, int *new, u64 *dblock, unsi
int gfs2_truncatei(struct gfs2_inode *ip, u64 size);
int gfs2_truncatei_resume(struct gfs2_inode *ip);
int gfs2_file_dealloc(struct gfs2_inode *ip);
void gfs2_write_calc_reserv(struct gfs2_inode *ip, unsigned int len,
unsigned int *data_blocks,
unsigned int *ind_blocks);
int gfs2_write_alloc_required(struct gfs2_inode *ip, u64 offset,
unsigned int len, int *alloc_required);

136
fs/gfs2/daemon.c
View File

@ -1,136 +0,0 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/completion.h>
#include <linux/buffer_head.h>
#include <linux/kthread.h>
#include <linux/delay.h>
#include <linux/gfs2_ondisk.h>
#include <linux/lm_interface.h>
#include <linux/freezer.h>
#include "gfs2.h"
#include "incore.h"
#include "daemon.h"
#include "glock.h"
#include "log.h"
#include "quota.h"
#include "recovery.h"
#include "super.h"
#include "util.h"
/* This uses schedule_timeout() instead of msleep() because it's good for
the daemons to wake up more often than the timeout when unmounting so
the user's unmount doesn't sit there forever.
The kthread functions used to start these daemons block and flush signals. */
/**
* gfs2_glockd - Reclaim unused glock structures
* @sdp: Pointer to GFS2 superblock
*
* One or more of these daemons run, reclaiming glocks on sd_reclaim_list.
* Number of daemons can be set by user, with num_glockd mount option.
*/
int gfs2_glockd(void *data)
{
struct gfs2_sbd *sdp = data;
while (!kthread_should_stop()) {
while (atomic_read(&sdp->sd_reclaim_count))
gfs2_reclaim_glock(sdp);
wait_event_interruptible(sdp->sd_reclaim_wq,
(atomic_read(&sdp->sd_reclaim_count) ||
kthread_should_stop()));
if (freezing(current))
refrigerator();
}
return 0;
}
/**
* gfs2_recoverd - Recover dead machine's journals
* @sdp: Pointer to GFS2 superblock
*
*/
int gfs2_recoverd(void *data)
{
struct gfs2_sbd *sdp = data;
unsigned long t;
while (!kthread_should_stop()) {
gfs2_check_journals(sdp);
t = gfs2_tune_get(sdp, gt_recoverd_secs) * HZ;
if (freezing(current))
refrigerator();
schedule_timeout_interruptible(t);
}
return 0;
}
/**
* gfs2_quotad - Write cached quota changes into the quota file
* @sdp: Pointer to GFS2 superblock
*
*/
int gfs2_quotad(void *data)
{
struct gfs2_sbd *sdp = data;
unsigned long t;
int error;
while (!kthread_should_stop()) {
/* Update the master statfs file */
t = sdp->sd_statfs_sync_time +
gfs2_tune_get(sdp, gt_statfs_quantum) * HZ;
if (time_after_eq(jiffies, t)) {
error = gfs2_statfs_sync(sdp);
if (error &&
error != -EROFS &&
!test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
fs_err(sdp, "quotad: (1) error=%d\n", error);
sdp->sd_statfs_sync_time = jiffies;
}
/* Update quota file */
t = sdp->sd_quota_sync_time +
gfs2_tune_get(sdp, gt_quota_quantum) * HZ;
if (time_after_eq(jiffies, t)) {
error = gfs2_quota_sync(sdp);
if (error &&
error != -EROFS &&
!test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
fs_err(sdp, "quotad: (2) error=%d\n", error);
sdp->sd_quota_sync_time = jiffies;
}
gfs2_quota_scan(sdp);
t = gfs2_tune_get(sdp, gt_quotad_secs) * HZ;
if (freezing(current))
refrigerator();
schedule_timeout_interruptible(t);
}
return 0;
}

17
fs/gfs2/daemon.h
View File

@ -1,17 +0,0 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
#ifndef __DAEMON_DOT_H__
#define __DAEMON_DOT_H__
int gfs2_glockd(void *data);
int gfs2_recoverd(void *data);
int gfs2_quotad(void *data);
#endif /* __DAEMON_DOT_H__ */

62
fs/gfs2/dir.c
View File

@ -36,7 +36,7 @@
* the block. In leaves, they begin at offset sizeof(struct gfs2_leaf) from the
* beginning of the leaf block. The dirents reside in leaves when
*
* dip->i_di.di_flags & GFS2_DIF_EXHASH is true
* dip->i_diskflags & GFS2_DIF_EXHASH is true
*
* Otherwise, the dirents are "linear", within a single stuffed dinode block.
*
@ -128,8 +128,8 @@ static int gfs2_dir_write_stuffed(struct gfs2_inode *ip, const char *buf,
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
memcpy(dibh->b_data + offset + sizeof(struct gfs2_dinode), buf, size);
if (ip->i_di.di_size < offset + size)
ip->i_di.di_size = offset + size;
if (ip->i_disksize < offset + size)
ip->i_disksize = offset + size;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_dinode_out(ip, dibh->b_data);
@ -226,8 +226,8 @@ static int gfs2_dir_write_data(struct gfs2_inode *ip, const char *buf,
if (error)
return error;
if (ip->i_di.di_size < offset + copied)
ip->i_di.di_size = offset + copied;
if (ip->i_disksize < offset + copied)
ip->i_disksize = offset + copied;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_trans_add_bh(ip->i_gl, dibh, 1);
@ -277,11 +277,11 @@ static int gfs2_dir_read_data(struct gfs2_inode *ip, char *buf, u64 offset,
int copied = 0;
int error = 0;
if (offset >= ip->i_di.di_size)
if (offset >= ip->i_disksize)
return 0;
if (offset + size > ip->i_di.di_size)
size = ip->i_di.di_size - offset;
if (offset + size > ip->i_disksize)
size = ip->i_disksize - offset;
if (!size)
return 0;
@ -755,12 +755,12 @@ static struct gfs2_dirent *gfs2_dirent_search(struct inode *inode,
struct gfs2_inode *ip = GFS2_I(inode);
int error;
if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
if (ip->i_diskflags & GFS2_DIF_EXHASH) {
struct gfs2_leaf *leaf;
unsigned hsize = 1 << ip->i_depth;
unsigned index;
u64 ln;
if (hsize * sizeof(u64) != ip->i_di.di_size) {
if (hsize * sizeof(u64) != ip->i_disksize) {
gfs2_consist_inode(ip);
return ERR_PTR(-EIO);
}
@ -858,8 +858,8 @@ static int dir_make_exhash(struct inode *inode)
return -ENOSPC;
bn = bh->b_blocknr;
gfs2_assert(sdp, dip->i_di.di_entries < (1 << 16));
leaf->lf_entries = cpu_to_be16(dip->i_di.di_entries);
gfs2_assert(sdp, dip->i_entries < (1 << 16));
leaf->lf_entries = cpu_to_be16(dip->i_entries);
/* Copy dirents */
@ -905,9 +905,9 @@ static int dir_make_exhash(struct inode *inode)
for (x = sdp->sd_hash_ptrs; x--; lp++)
*lp = cpu_to_be64(bn);
dip->i_di.di_size = sdp->sd_sb.sb_bsize / 2;
dip->i_disksize = sdp->sd_sb.sb_bsize / 2;
gfs2_add_inode_blocks(&dip->i_inode, 1);
dip->i_di.di_flags |= GFS2_DIF_EXHASH;
dip->i_diskflags |= GFS2_DIF_EXHASH;
for (x = sdp->sd_hash_ptrs, y = -1; x; x >>= 1, y++) ;
dip->i_depth = y;
@ -1082,7 +1082,7 @@ static int dir_double_exhash(struct gfs2_inode *dip)
int error = 0;
hsize = 1 << dip->i_depth;
if (hsize * sizeof(u64) != dip->i_di.di_size) {
if (hsize * sizeof(u64) != dip->i_disksize) {
gfs2_consist_inode(dip);
return -EIO;
}
@ -1091,7 +1091,7 @@ static int dir_double_exhash(struct gfs2_inode *dip)
buf = kcalloc(3, sdp->sd_hash_bsize, GFP_NOFS | __GFP_NOFAIL);
for (block = dip->i_di.di_size >> sdp->sd_hash_bsize_shift; block--;) {
for (block = dip->i_disksize >> sdp->sd_hash_bsize_shift; block--;) {
error = gfs2_dir_read_data(dip, (char *)buf,
block * sdp->sd_hash_bsize,
sdp->sd_hash_bsize, 1);
@ -1370,7 +1370,7 @@ static int dir_e_read(struct inode *inode, u64 *offset, void *opaque,
unsigned depth = 0;
hsize = 1 << dip->i_depth;
if (hsize * sizeof(u64) != dip->i_di.di_size) {
if (hsize * sizeof(u64) != dip->i_disksize) {
gfs2_consist_inode(dip);
return -EIO;
}
@ -1426,10 +1426,10 @@ int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
int copied = 0;
int error;
if (!dip->i_di.di_entries)
if (!dip->i_entries)
return 0;
if (dip->i_di.di_flags & GFS2_DIF_EXHASH)
if (dip->i_diskflags & GFS2_DIF_EXHASH)
return dir_e_read(inode, offset, opaque, filldir);
if (!gfs2_is_stuffed(dip)) {
@ -1453,17 +1453,17 @@ int gfs2_dir_read(struct inode *inode, u64 *offset, void *opaque,
error = PTR_ERR(dent);
goto out;
}
if (dip->i_di.di_entries != g.offset) {
if (dip->i_entries != g.offset) {
fs_warn(sdp, "Number of entries corrupt in dir %llu, "
"ip->i_di.di_entries (%u) != g.offset (%u)\n",
"ip->i_entries (%u) != g.offset (%u)\n",
(unsigned long long)dip->i_no_addr,
dip->i_di.di_entries,
dip->i_entries,
g.offset);
error = -EIO;
goto out;
}
error = do_filldir_main(dip, offset, opaque, filldir, darr,
dip->i_di.di_entries, &copied);
dip->i_entries, &copied);
out:
kfree(darr);
}
@ -1612,7 +1612,7 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
dent = gfs2_init_dirent(inode, dent, name, bh);
gfs2_inum_out(nip, dent);
dent->de_type = cpu_to_be16(type);
if (ip->i_di.di_flags & GFS2_DIF_EXHASH) {
if (ip->i_diskflags & GFS2_DIF_EXHASH) {
leaf = (struct gfs2_leaf *)bh->b_data;
be16_add_cpu(&leaf->lf_entries, 1);
}
@ -1621,14 +1621,14 @@ int gfs2_dir_add(struct inode *inode, const struct qstr *name,
if (error)
break;
gfs2_trans_add_bh(ip->i_gl, bh, 1);
ip->i_di.di_entries++;
ip->i_entries++;
ip->i_inode.i_mtime = ip->i_inode.i_ctime = CURRENT_TIME;
gfs2_dinode_out(ip, bh->b_data);
brelse(bh);
error = 0;
break;
}
if (!(ip->i_di.di_flags & GFS2_DIF_EXHASH)) {
if (!(ip->i_diskflags & GFS2_DIF_EXHASH)) {
error = dir_make_exhash(inode);
if (error)
break;
@ -1691,7 +1691,7 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name)
}
dirent_del(dip, bh, prev, dent);
if (dip->i_di.di_flags & GFS2_DIF_EXHASH) {
if (dip->i_diskflags & GFS2_DIF_EXHASH) {
struct gfs2_leaf *leaf = (struct gfs2_leaf *)bh->b_data;
u16 entries = be16_to_cpu(leaf->lf_entries);
if (!entries)
@ -1704,10 +1704,10 @@ int gfs2_dir_del(struct gfs2_inode *dip, const struct qstr *name)
if (error)
return error;
if (!dip->i_di.di_entries)
if (!dip->i_entries)
gfs2_consist_inode(dip);
gfs2_trans_add_bh(dip->i_gl, bh, 1);
dip->i_di.di_entries--;
dip->i_entries--;
dip->i_inode.i_mtime = dip->i_inode.i_ctime = CURRENT_TIME;
gfs2_dinode_out(dip, bh->b_data);
brelse(bh);
@ -1748,7 +1748,7 @@ int gfs2_dir_mvino(struct gfs2_inode *dip, const struct qstr *filename,
gfs2_inum_out(nip, dent);
dent->de_type = cpu_to_be16(new_type);
if (dip->i_di.di_flags & GFS2_DIF_EXHASH) {
if (dip->i_diskflags & GFS2_DIF_EXHASH) {
brelse(bh);
error = gfs2_meta_inode_buffer(dip, &bh);
if (error)
@ -1784,7 +1784,7 @@ static int foreach_leaf(struct gfs2_inode *dip, leaf_call_t lc, void *data)
int error = 0;
hsize = 1 << dip->i_depth;
if (hsize * sizeof(u64) != dip->i_di.di_size) {
if (hsize * sizeof(u64) != dip->i_disksize) {
gfs2_consist_inode(dip);
return -EIO;
}

1
fs/gfs2/dir.h
View File

@ -11,6 +11,7 @@
#define __DIR_DOT_H__
#include <linux/dcache.h>
#include <linux/crc32.h>
struct inode;
struct gfs2_inode;

40
fs/gfs2/eattr.c
View File

@ -114,11 +114,11 @@ static int ea_foreach(struct gfs2_inode *ip, ea_call_t ea_call, void *data)
__be64 *eablk, *end;
int error;
error = gfs2_meta_read(ip->i_gl, ip->i_di.di_eattr, DIO_WAIT, &bh);
error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &bh);
if (error)
return error;
if (!(ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT)) {
if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT)) {
error = ea_foreach_i(ip, bh, ea_call, data);
goto out;
}
@ -414,7 +414,7 @@ int gfs2_ea_list(struct gfs2_inode *ip, struct gfs2_ea_request *er)
if (error)
return error;
if (ip->i_di.di_eattr) {
if (ip->i_eattr) {
struct ea_list ei = { .ei_er = er, .ei_size = 0 };
error = ea_foreach(ip, ea_list_i, &ei);
@ -514,7 +514,7 @@ int gfs2_ea_get_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
struct gfs2_ea_location el;
int error;
if (!ip->i_di.di_eattr)
if (!ip->i_eattr)
return -ENODATA;
error = gfs2_ea_find(ip, er, &el);
@ -741,7 +741,7 @@ static int ea_init_i(struct gfs2_inode *ip, struct gfs2_ea_request *er,
if (error)
return error;
ip->i_di.di_eattr = bh->b_blocknr;
ip->i_eattr = bh->b_blocknr;
error = ea_write(ip, GFS2_EA_BH2FIRST(bh), er);
brelse(bh);
@ -935,10 +935,10 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
int error;
int mh_size = sizeof(struct gfs2_meta_header);
if (ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT) {
if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {
__be64 *end;
error = gfs2_meta_read(ip->i_gl, ip->i_di.di_eattr, DIO_WAIT,
error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT,
&indbh);
if (error)
return error;
@ -972,9 +972,9 @@ static int ea_set_block(struct gfs2_inode *ip, struct gfs2_ea_request *er,
gfs2_buffer_clear_tail(indbh, mh_size);
eablk = (__be64 *)(indbh->b_data + mh_size);
*eablk = cpu_to_be64(ip->i_di.di_eattr);
ip->i_di.di_eattr = blk;
ip->i_di.di_flags |= GFS2_DIF_EA_INDIRECT;
*eablk = cpu_to_be64(ip->i_eattr);
ip->i_eattr = blk;
ip->i_diskflags |= GFS2_DIF_EA_INDIRECT;
gfs2_add_inode_blocks(&ip->i_inode, 1);
eablk++;
@ -1015,7 +1015,7 @@ static int ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er,
if (error)
return error;
if (!(ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT))
if (!(ip->i_diskflags & GFS2_DIF_EA_INDIRECT))
blks++;
if (GFS2_EAREQ_SIZE_STUFFED(er) > GFS2_SB(&ip->i_inode)->sd_jbsize)
blks += DIV_ROUND_UP(er->er_data_len, GFS2_SB(&ip->i_inode)->sd_jbsize);
@ -1040,7 +1040,7 @@ int gfs2_ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
struct gfs2_ea_location el;
int error;
if (!ip->i_di.di_eattr) {
if (!ip->i_eattr) {
if (er->er_flags & XATTR_REPLACE)
return -ENODATA;
return ea_init(ip, er);
@ -1051,7 +1051,7 @@ int gfs2_ea_set_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
return error;
if (el.el_ea) {
if (ip->i_di.di_flags & GFS2_DIF_APPENDONLY) {
if (ip->i_diskflags & GFS2_DIF_APPENDONLY) {
brelse(el.el_bh);
return -EPERM;
}
@ -1145,7 +1145,7 @@ int gfs2_ea_remove_i(struct gfs2_inode *ip, struct gfs2_ea_request *er)
struct gfs2_ea_location el;
int error;
if (!ip->i_di.di_eattr)
if (!ip->i_eattr)
return -ENODATA;
error = gfs2_ea_find(ip, er, &el);
@ -1309,7 +1309,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
memset(&rlist, 0, sizeof(struct gfs2_rgrp_list));
error = gfs2_meta_read(ip->i_gl, ip->i_di.di_eattr, DIO_WAIT, &indbh);
error = gfs2_meta_read(ip->i_gl, ip->i_eattr, DIO_WAIT, &indbh);
if (error)
return error;
@ -1388,7 +1388,7 @@ static int ea_dealloc_indirect(struct gfs2_inode *ip)
if (bstart)
gfs2_free_meta(ip, bstart, blen);
ip->i_di.di_flags &= ~GFS2_DIF_EA_INDIRECT;
ip->i_diskflags &= ~GFS2_DIF_EA_INDIRECT;
error = gfs2_meta_inode_buffer(ip, &dibh);
if (!error) {
@ -1416,7 +1416,7 @@ static int ea_dealloc_block(struct gfs2_inode *ip)
struct buffer_head *dibh;
int error;
rgd = gfs2_blk2rgrpd(sdp, ip->i_di.di_eattr);
rgd = gfs2_blk2rgrpd(sdp, ip->i_eattr);
if (!rgd) {
gfs2_consist_inode(ip);
return -EIO;
@ -1432,9 +1432,9 @@ static int ea_dealloc_block(struct gfs2_inode *ip)
if (error)
goto out_gunlock;
gfs2_free_meta(ip, ip->i_di.di_eattr, 1);
gfs2_free_meta(ip, ip->i_eattr, 1);
ip->i_di.di_eattr = 0;
ip->i_eattr = 0;
gfs2_add_inode_blocks(&ip->i_inode, -1);
error = gfs2_meta_inode_buffer(ip, &dibh);
@ -1479,7 +1479,7 @@ int gfs2_ea_dealloc(struct gfs2_inode *ip)
if (error)
goto out_rindex;
if (ip->i_di.di_flags & GFS2_DIF_EA_INDIRECT) {
if (ip->i_diskflags & GFS2_DIF_EA_INDIRECT) {
error = ea_dealloc_indirect(ip);
if (error)
goto out_rindex;

307
fs/gfs2/glock.c
View File

@ -40,6 +40,7 @@
#include "quota.h"
#include "super.h"
#include "util.h"
#include "bmap.h"
struct gfs2_gl_hash_bucket {
struct hlist_head hb_list;
@ -61,9 +62,10 @@ static void do_xmote(struct gfs2_glock *gl, struct gfs2_holder *gh, unsigned int
static DECLARE_RWSEM(gfs2_umount_flush_sem);
static struct dentry *gfs2_root;
static struct task_struct *scand_process;
static unsigned int scand_secs = 5;
static struct workqueue_struct *glock_workqueue;
static LIST_HEAD(lru_list);
static atomic_t lru_count = ATOMIC_INIT(0);
static DEFINE_SPINLOCK(lru_lock);
#define GFS2_GL_HASH_SHIFT 15
#define GFS2_GL_HASH_SIZE (1 << GFS2_GL_HASH_SHIFT)
@ -173,6 +175,22 @@ static void gfs2_glock_hold(struct gfs2_glock *gl)
atomic_inc(&gl->gl_ref);
}
/**
* gfs2_glock_schedule_for_reclaim - Add a glock to the reclaim list
* @gl: the glock
*
*/
static void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl)
{
spin_lock(&lru_lock);
if (list_empty(&gl->gl_lru) && gl->gl_state != LM_ST_UNLOCKED) {
list_add_tail(&gl->gl_lru, &lru_list);
atomic_inc(&lru_count);
}
spin_unlock(&lru_lock);
}
/**
* gfs2_glock_put() - Decrement reference count on glock
* @gl: The glock to put
@ -187,14 +205,23 @@ int gfs2_glock_put(struct gfs2_glock *gl)
if (atomic_dec_and_test(&gl->gl_ref)) {
hlist_del(&gl->gl_list);
write_unlock(gl_lock_addr(gl->gl_hash));
spin_lock(&lru_lock);
if (!list_empty(&gl->gl_lru)) {
list_del_init(&gl->gl_lru);
atomic_dec(&lru_count);
}
spin_unlock(&lru_lock);
GLOCK_BUG_ON(gl, gl->gl_state != LM_ST_UNLOCKED);
GLOCK_BUG_ON(gl, !list_empty(&gl->gl_reclaim));
GLOCK_BUG_ON(gl, !list_empty(&gl->gl_lru));
GLOCK_BUG_ON(gl, !list_empty(&gl->gl_holders));
glock_free(gl);
rv = 1;
goto out;
}
write_unlock(gl_lock_addr(gl->gl_hash));
/* 1 for being hashed, 1 for having state != LM_ST_UNLOCKED */
if (atomic_read(&gl->gl_ref) == 2)
gfs2_glock_schedule_for_reclaim(gl);
out:
return rv;
}
@ -289,10 +316,13 @@ static void gfs2_holder_wake(struct gfs2_holder *gh)
* do_promote - promote as many requests as possible on the current queue
* @gl: The glock
*
* Returns: true if there is a blocked holder at the head of the list
* Returns: 1 if there is a blocked holder at the head of the list, or 2
* if a type specific operation is underway.
*/
static int do_promote(struct gfs2_glock *gl)
__releases(&gl->gl_spin)
__acquires(&gl->gl_spin)
{
const struct gfs2_glock_operations *glops = gl->gl_ops;
struct gfs2_holder *gh, *tmp;
@ -310,6 +340,8 @@ static int do_promote(struct gfs2_glock *gl)
ret = glops->go_lock(gh);
spin_lock(&gl->gl_spin);
if (ret) {
if (ret == 1)
return 2;
gh->gh_error = ret;
list_del_init(&gh->gh_list);
gfs2_holder_wake(gh);
@ -414,6 +446,7 @@ static void finish_xmote(struct gfs2_glock *gl, unsigned int ret)
const struct gfs2_glock_operations *glops = gl->gl_ops;
struct gfs2_holder *gh;
unsigned state = ret & LM_OUT_ST_MASK;
int rv;
spin_lock(&gl->gl_spin);
state_change(gl, state);
@ -468,7 +501,6 @@ static void finish_xmote(struct gfs2_glock *gl, unsigned int ret)
gfs2_demote_wake(gl);
if (state != LM_ST_UNLOCKED) {
if (glops->go_xmote_bh) {
int rv;
spin_unlock(&gl->gl_spin);
rv = glops->go_xmote_bh(gl, gh);
if (rv == -EAGAIN)
@ -479,10 +511,13 @@ static void finish_xmote(struct gfs2_glock *gl, unsigned int ret)
goto out;
}
}
do_promote(gl);
rv = do_promote(gl);
if (rv == 2)
goto out_locked;
}
out:
clear_bit(GLF_LOCK, &gl->gl_flags);
out_locked:
spin_unlock(&gl->gl_spin);
gfs2_glock_put(gl);
}
@ -511,6 +546,8 @@ static unsigned int gfs2_lm_lock(struct gfs2_sbd *sdp, void *lock,
*/
static void do_xmote(struct gfs2_glock *gl, struct gfs2_holder *gh, unsigned int target)
__releases(&gl->gl_spin)
__acquires(&gl->gl_spin)
{
const struct gfs2_glock_operations *glops = gl->gl_ops;
struct gfs2_sbd *sdp = gl->gl_sbd;
@ -576,8 +613,11 @@ static inline struct gfs2_holder *find_first_holder(const struct gfs2_glock *gl)
*/
static void run_queue(struct gfs2_glock *gl, const int nonblock)
__releases(&gl->gl_spin)
__acquires(&gl->gl_spin)
{
struct gfs2_holder *gh = NULL;
int ret;
if (test_and_set_bit(GLF_LOCK, &gl->gl_flags))
return;
@ -596,8 +636,11 @@ static void run_queue(struct gfs2_glock *gl, const int nonblock)
} else {
if (test_bit(GLF_DEMOTE, &gl->gl_flags))
gfs2_demote_wake(gl);
if (do_promote(gl) == 0)
ret = do_promote(gl);
if (ret == 0)
goto out;
if (ret == 2)
return;
gh = find_first_waiter(gl);
gl->gl_target = gh->gh_state;
if (!(gh->gh_flags & (LM_FLAG_TRY | LM_FLAG_TRY_1CB)))
@ -820,7 +863,7 @@ static void wait_on_demote(struct gfs2_glock *gl)
*/
static void handle_callback(struct gfs2_glock *gl, unsigned int state,
int remote, unsigned long delay)
unsigned long delay)
{
int bit = delay ? GLF_PENDING_DEMOTE : GLF_DEMOTE;
@ -828,9 +871,6 @@ static void handle_callback(struct gfs2_glock *gl, unsigned int state,
if (gl->gl_demote_state == LM_ST_EXCLUSIVE) {
gl->gl_demote_state = state;
gl->gl_demote_time = jiffies;
if (remote && gl->gl_ops->go_type == LM_TYPE_IOPEN &&
gl->gl_object)
gfs2_glock_schedule_for_reclaim(gl);
} else if (gl->gl_demote_state != LM_ST_UNLOCKED &&
gl->gl_demote_state != state) {
gl->gl_demote_state = LM_ST_UNLOCKED;
@ -877,6 +917,8 @@ void gfs2_print_dbg(struct seq_file *seq, const char *fmt, ...)
*/
static inline void add_to_queue(struct gfs2_holder *gh)
__releases(&gl->gl_spin)
__acquires(&gl->gl_spin)
{
struct gfs2_glock *gl = gh->gh_gl;
struct gfs2_sbd *sdp = gl->gl_sbd;
@ -998,7 +1040,7 @@ void gfs2_glock_dq(struct gfs2_holder *gh)
spin_lock(&gl->gl_spin);
if (gh->gh_flags & GL_NOCACHE)
handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
handle_callback(gl, LM_ST_UNLOCKED, 0);
list_del_init(&gh->gh_list);
if (find_first_holder(gl) == NULL) {
@ -1269,12 +1311,26 @@ static void blocking_cb(struct gfs2_sbd *sdp, struct lm_lockname *name,
delay = gl->gl_ops->go_min_hold_time;
spin_lock(&gl->gl_spin);
handle_callback(gl, state, 1, delay);
handle_callback(gl, state, delay);
spin_unlock(&gl->gl_spin);
if (queue_delayed_work(glock_workqueue, &gl->gl_work, delay) == 0)
gfs2_glock_put(gl);
}
static void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid)
{
struct gfs2_jdesc *jd;
spin_lock(&sdp->sd_jindex_spin);
list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
if (jd->jd_jid != jid)
continue;
jd->jd_dirty = 1;
break;
}
spin_unlock(&sdp->sd_jindex_spin);
}
/**
* gfs2_glock_cb - Callback used by locking module
* @sdp: Pointer to the superblock
@ -1338,80 +1394,83 @@ void gfs2_glock_cb(void *cb_data, unsigned int type, void *data)
* Returns: 1 if it's ok
*/
static int demote_ok(struct gfs2_glock *gl)
static int demote_ok(const struct gfs2_glock *gl)
{
const struct gfs2_glock_operations *glops = gl->gl_ops;
int demote = 1;
if (test_bit(GLF_STICKY, &gl->gl_flags))
demote = 0;
else if (glops->go_demote_ok)
demote = glops->go_demote_ok(gl);
return demote;
if (gl->gl_state == LM_ST_UNLOCKED)
return 0;
if (!list_empty(&gl->gl_holders))
return 0;
if (glops->go_demote_ok)
return glops->go_demote_ok(gl);
return 1;
}
/**
* gfs2_glock_schedule_for_reclaim - Add a glock to the reclaim list
* @gl: the glock
*
*/
void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl)
{
struct gfs2_sbd *sdp = gl->gl_sbd;
spin_lock(&sdp->sd_reclaim_lock);
if (list_empty(&gl->gl_reclaim)) {
gfs2_glock_hold(gl);
list_add(&gl->gl_reclaim, &sdp->sd_reclaim_list);
atomic_inc(&sdp->sd_reclaim_count);
spin_unlock(&sdp->sd_reclaim_lock);
wake_up(&sdp->sd_reclaim_wq);
} else
spin_unlock(&sdp->sd_reclaim_lock);
}
/**
* gfs2_reclaim_glock - process the next glock on the filesystem's reclaim list
* @sdp: the filesystem
*
* Called from gfs2_glockd() glock reclaim daemon, or when promoting a
* different glock and we notice that there are a lot of glocks in the
* reclaim list.
*
*/
void gfs2_reclaim_glock(struct gfs2_sbd *sdp)
static int gfs2_shrink_glock_memory(int nr, gfp_t gfp_mask)
{
struct gfs2_glock *gl;
int done_callback = 0;
int may_demote;
int nr_skipped = 0;
int got_ref = 0;
LIST_HEAD(skipped);
spin_lock(&sdp->sd_reclaim_lock);
if (list_empty(&sdp->sd_reclaim_list)) {
spin_unlock(&sdp->sd_reclaim_lock);
return;
if (nr == 0)
goto out;
if (!(gfp_mask & __GFP_FS))
return -1;
spin_lock(&lru_lock);
while(nr && !list_empty(&lru_list)) {
gl = list_entry(lru_list.next, struct gfs2_glock, gl_lru);
list_del_init(&gl->gl_lru);
atomic_dec(&lru_count);
/* Test for being demotable */
if (!test_and_set_bit(GLF_LOCK, &gl->gl_flags)) {
gfs2_glock_hold(gl);
got_ref = 1;
spin_unlock(&lru_lock);
spin_lock(&gl->gl_spin);
may_demote = demote_ok(gl);
spin_unlock(&gl->gl_spin);
clear_bit(GLF_LOCK, &gl->gl_flags);
if (may_demote) {
handle_callback(gl, LM_ST_UNLOCKED, 0);
nr--;
if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
gfs2_glock_put(gl);
}
spin_lock(&lru_lock);
if (may_demote)
continue;
}
if (list_empty(&gl->gl_lru) &&
(atomic_read(&gl->gl_ref) <= (2 + got_ref))) {
nr_skipped++;
list_add(&gl->gl_lru, &skipped);
}
if (got_ref) {
spin_unlock(&lru_lock);
gfs2_glock_put(gl);
spin_lock(&lru_lock);
got_ref = 0;
}
}
gl = list_entry(sdp->sd_reclaim_list.next,
struct gfs2_glock, gl_reclaim);
list_del_init(&gl->gl_reclaim);
spin_unlock(&sdp->sd_reclaim_lock);
atomic_dec(&sdp->sd_reclaim_count);
atomic_inc(&sdp->sd_reclaimed);
spin_lock(&gl->gl_spin);
if (find_first_holder(gl) == NULL &&
gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl)) {
handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
done_callback = 1;
}
spin_unlock(&gl->gl_spin);
if (!done_callback ||
queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
gfs2_glock_put(gl);
list_splice(&skipped, &lru_list);
atomic_add(nr_skipped, &lru_count);
spin_unlock(&lru_lock);
out:
return (atomic_read(&lru_count) / 100) * sysctl_vfs_cache_pressure;
}
static struct shrinker glock_shrinker = {
.shrink = gfs2_shrink_glock_memory,
.seeks = DEFAULT_SEEKS,
};
/**
* examine_bucket - Call a function for glock in a hash bucket
* @examiner: the function
@ -1456,26 +1515,6 @@ static int examine_bucket(glock_examiner examiner, struct gfs2_sbd *sdp,
return has_entries;
}
/**
* scan_glock - look at a glock and see if we can reclaim it
* @gl: the glock to look at
*
*/
static void scan_glock(struct gfs2_glock *gl)
{
if (gl->gl_ops == &gfs2_inode_glops && gl->gl_object)
return;
if (test_bit(GLF_LOCK, &gl->gl_flags))
return;
spin_lock(&gl->gl_spin);
if (find_first_holder(gl) == NULL &&
gl->gl_state != LM_ST_UNLOCKED && demote_ok(gl))
gfs2_glock_schedule_for_reclaim(gl);
spin_unlock(&gl->gl_spin);
}
/**
* clear_glock - look at a glock and see if we can free it from glock cache
* @gl: the glock to look at
@ -1484,23 +1523,16 @@ static void scan_glock(struct gfs2_glock *gl)
static void clear_glock(struct gfs2_glock *gl)
{
struct gfs2_sbd *sdp = gl->gl_sbd;
int released;
spin_lock(&sdp->sd_reclaim_lock);
if (!list_empty(&gl->gl_reclaim)) {
list_del_init(&gl->gl_reclaim);
atomic_dec(&sdp->sd_reclaim_count);
spin_unlock(&sdp->sd_reclaim_lock);
released = gfs2_glock_put(gl);
gfs2_assert(sdp, !released);
} else {
spin_unlock(&sdp->sd_reclaim_lock);
spin_lock(&lru_lock);
if (!list_empty(&gl->gl_lru)) {
list_del_init(&gl->gl_lru);
atomic_dec(&lru_count);
}
spin_unlock(&lru_lock);
spin_lock(&gl->gl_spin);
if (find_first_holder(gl) == NULL && gl->gl_state != LM_ST_UNLOCKED)
handle_callback(gl, LM_ST_UNLOCKED, 0, 0);
handle_callback(gl, LM_ST_UNLOCKED, 0);
spin_unlock(&gl->gl_spin);
gfs2_glock_hold(gl);
if (queue_delayed_work(glock_workqueue, &gl->gl_work, 0) == 0)
@ -1548,6 +1580,20 @@ void gfs2_gl_hash_clear(struct gfs2_sbd *sdp)
}
}
void gfs2_glock_finish_truncate(struct gfs2_inode *ip)
{
struct gfs2_glock *gl = ip->i_gl;
int ret;
ret = gfs2_truncatei_resume(ip);
gfs2_assert_withdraw(gl->gl_sbd, ret == 0);
spin_lock(&gl->gl_spin);
clear_bit(GLF_LOCK, &gl->gl_flags);
run_queue(gl, 1);
spin_unlock(&gl->gl_spin);
}
static const char *state2str(unsigned state)
{
switch(state) {
@ -1623,8 +1669,6 @@ static const char *gflags2str(char *buf, const unsigned long *gflags)
char *p = buf;
if (test_bit(GLF_LOCK, gflags))
*p++ = 'l';
if (test_bit(GLF_STICKY, gflags))
*p++ = 's';
if (test_bit(GLF_DEMOTE, gflags))
*p++ = 'D';
if (test_bit(GLF_PENDING_DEMOTE, gflags))
@ -1743,34 +1787,6 @@ static int gfs2_dump_lockstate(struct gfs2_sbd *sdp)
return error;
}
/**
* gfs2_scand - Look for cached glocks and inodes to toss from memory
* @sdp: Pointer to GFS2 superblock
*
* One of these daemons runs, finding candidates to add to sd_reclaim_list.
* See gfs2_glockd()
*/
static int gfs2_scand(void *data)
{
unsigned x;
unsigned delay;
while (!kthread_should_stop()) {
for (x = 0; x < GFS2_GL_HASH_SIZE; x++)
examine_bucket(scan_glock, NULL, x);
if (freezing(current))
refrigerator();
delay = scand_secs;
if (delay < 1)
delay = 1;
schedule_timeout_interruptible(delay * HZ);
}
return 0;
}
int __init gfs2_glock_init(void)
{
@ -1784,28 +1800,21 @@ int __init gfs2_glock_init(void)
}
#endif
scand_process = kthread_run(gfs2_scand, NULL, "gfs2_scand");
if (IS_ERR(scand_process))
return PTR_ERR(scand_process);
glock_workqueue = create_workqueue("glock_workqueue");
if (IS_ERR(glock_workqueue)) {
kthread_stop(scand_process);
if (IS_ERR(glock_workqueue))
return PTR_ERR(glock_workqueue);
}
register_shrinker(&glock_shrinker);
return 0;
}
void gfs2_glock_exit(void)
{
unregister_shrinker(&glock_shrinker);
destroy_workqueue(glock_workqueue);
kthread_stop(scand_process);
}
module_param(scand_secs, uint, S_IRUGO|S_IWUSR);
MODULE_PARM_DESC(scand_secs, "The number of seconds between scand runs");
static int gfs2_glock_iter_next(struct gfs2_glock_iter *gi)
{
struct gfs2_glock *gl;

2
fs/gfs2/glock.h
View File

@ -129,9 +129,9 @@ int gfs2_lvb_hold(struct gfs2_glock *gl);
void gfs2_lvb_unhold(struct gfs2_glock *gl);
void gfs2_glock_cb(void *cb_data, unsigned int type, void *data);
void gfs2_glock_schedule_for_reclaim(struct gfs2_glock *gl);
void gfs2_reclaim_glock(struct gfs2_sbd *sdp);
void gfs2_gl_hash_clear(struct gfs2_sbd *sdp);
void gfs2_glock_finish_truncate(struct gfs2_inode *ip);
int __init gfs2_glock_init(void);
void gfs2_glock_exit(void);

56
fs/gfs2/glops.c
View File

@ -201,19 +201,12 @@ static void inode_go_inval(struct gfs2_glock *gl, int flags)
* Returns: 1 if it's ok
*/
static int inode_go_demote_ok(struct gfs2_glock *gl)
static int inode_go_demote_ok(const struct gfs2_glock *gl)
{
struct gfs2_sbd *sdp = gl->gl_sbd;
int demote = 0;
if (!gl->gl_object && !gl->gl_aspace->i_mapping->nrpages)
demote = 1;
else if (!sdp->sd_args.ar_localcaching &&
time_after_eq(jiffies, gl->gl_stamp +
gfs2_tune_get(sdp, gt_demote_secs) * HZ))
demote = 1;
return demote;
if (sdp->sd_jindex == gl->gl_object || sdp->sd_rindex == gl->gl_object)
return 0;
return 1;
}
/**
@ -227,6 +220,7 @@ static int inode_go_demote_ok(struct gfs2_glock *gl)
static int inode_go_lock(struct gfs2_holder *gh)
{
struct gfs2_glock *gl = gh->gh_gl;
struct gfs2_sbd *sdp = gl->gl_sbd;
struct gfs2_inode *ip = gl->gl_object;
int error = 0;
@ -239,10 +233,16 @@ static int inode_go_lock(struct gfs2_holder *gh)
return error;
}
if ((ip->i_di.di_flags & GFS2_DIF_TRUNC_IN_PROG) &&
if ((ip->i_diskflags & GFS2_DIF_TRUNC_IN_PROG) &&
(gl->gl_state == LM_ST_EXCLUSIVE) &&
(gh->gh_state == LM_ST_EXCLUSIVE))
error = gfs2_truncatei_resume(ip);
(gh->gh_state == LM_ST_EXCLUSIVE)) {
spin_lock(&sdp->sd_trunc_lock);
if (list_empty(&ip->i_trunc_list))
list_add(&sdp->sd_trunc_list, &ip->i_trunc_list);
spin_unlock(&sdp->sd_trunc_lock);
wake_up(&sdp->sd_quota_wait);
return 1;
}
return error;
}
@ -260,10 +260,13 @@ static int inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
const struct gfs2_inode *ip = gl->gl_object;
if (ip == NULL)
return 0;
gfs2_print_dbg(seq, " I: n:%llu/%llu t:%u f:0x%08lx\n",
gfs2_print_dbg(seq, " I: n:%llu/%llu t:%u f:0x%02lx d:0x%08x s:%llu/%llu\n",
(unsigned long long)ip->i_no_formal_ino,
(unsigned long long)ip->i_no_addr,
IF2DT(ip->i_inode.i_mode), ip->i_flags);
IF2DT(ip->i_inode.i_mode), ip->i_flags,
(unsigned int)ip->i_diskflags,
(unsigned long long)ip->i_inode.i_size,
(unsigned long long)ip->i_disksize);
return 0;
}
@ -274,7 +277,7 @@ static int inode_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
* Returns: 1 if it's ok
*/
static int rgrp_go_demote_ok(struct gfs2_glock *gl)
static int rgrp_go_demote_ok(const struct gfs2_glock *gl)
{
return !gl->gl_aspace->i_mapping->nrpages;
}
@ -318,7 +321,9 @@ static int rgrp_go_dump(struct seq_file *seq, const struct gfs2_glock *gl)
const struct gfs2_rgrpd *rgd = gl->gl_object;
if (rgd == NULL)
return 0;
gfs2_print_dbg(seq, " R: n:%llu\n", (unsigned long long)rgd->rd_addr);
gfs2_print_dbg(seq, " R: n:%llu f:%02x b:%u/%u i:%u\n",
(unsigned long long)rgd->rd_addr, rgd->rd_flags,
rgd->rd_free, rgd->rd_free_clone, rgd->rd_dinodes);
return 0;
}
@ -373,6 +378,18 @@ static int trans_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh)
return 0;
}
/**
* trans_go_demote_ok
* @gl: the glock
*
* Always returns 0
*/
static int trans_go_demote_ok(const struct gfs2_glock *gl)
{
return 0;
}
/**
* quota_go_demote_ok - Check to see if it's ok to unlock a quota glock
* @gl: the glock
@ -380,7 +397,7 @@ static int trans_go_xmote_bh(struct gfs2_glock *gl, struct gfs2_holder *gh)
* Returns: 1 if it's ok
*/
static int quota_go_demote_ok(struct gfs2_glock *gl)
static int quota_go_demote_ok(const struct gfs2_glock *gl)
{
return !atomic_read(&gl->gl_lvb_count);
}
@ -414,6 +431,7 @@ const struct gfs2_glock_operations gfs2_rgrp_glops = {
const struct gfs2_glock_operations gfs2_trans_glops = {
.go_xmote_th = trans_go_sync,
.go_xmote_bh = trans_go_xmote_bh,
.go_demote_ok = trans_go_demote_ok,
.go_type = LM_TYPE_NONDISK,
};

57
fs/gfs2/incore.h
View File

@ -68,12 +68,6 @@ struct gfs2_bitmap {
u32 bi_len;
};
struct gfs2_rgrp_host {
u32 rg_free;
u32 rg_dinodes;
u64 rg_igeneration;
};
struct gfs2_rgrpd {
struct list_head rd_list; /* Link with superblock */
struct list_head rd_list_mru;
@ -83,14 +77,16 @@ struct gfs2_rgrpd {
u32 rd_length; /* length of rgrp header in fs blocks */
u32 rd_data; /* num of data blocks in rgrp */
u32 rd_bitbytes; /* number of bytes in data bitmaps */
struct gfs2_rgrp_host rd_rg;
struct gfs2_bitmap *rd_bits;
unsigned int rd_bh_count;
struct mutex rd_mutex;
u32 rd_free;
u32 rd_free_clone;
u32 rd_dinodes;
u64 rd_igeneration;
struct gfs2_bitmap *rd_bits;
struct mutex rd_mutex;
struct gfs2_log_element rd_le;
u32 rd_last_alloc;
struct gfs2_sbd *rd_sbd;
unsigned int rd_bh_count;
u32 rd_last_alloc;
unsigned char rd_flags;
#define GFS2_RDF_CHECK 0x01 /* Need to check for unlinked inodes */
#define GFS2_RDF_NOALLOC 0x02 /* rg prohibits allocation */
@ -129,7 +125,7 @@ struct gfs2_glock_operations {
void (*go_xmote_th) (struct gfs2_glock *gl);
int (*go_xmote_bh) (struct gfs2_glock *gl, struct gfs2_holder *gh);
void (*go_inval) (struct gfs2_glock *gl, int flags);
int (*go_demote_ok) (struct gfs2_glock *gl);
int (*go_demote_ok) (const struct gfs2_glock *gl);
int (*go_lock) (struct gfs2_holder *gh);
void (*go_unlock) (struct gfs2_holder *gh);
int (*go_dump)(struct seq_file *seq, const struct gfs2_glock *gl);
@ -159,7 +155,6 @@ struct gfs2_holder {
enum {
GLF_LOCK = 1,
GLF_STICKY = 2,
GLF_DEMOTE = 3,
GLF_PENDING_DEMOTE = 4,
GLF_DEMOTE_IN_PROGRESS = 5,
@ -194,7 +189,7 @@ struct gfs2_glock {
unsigned long gl_tchange;
void *gl_object;
struct list_head gl_reclaim;
struct list_head gl_lru;
struct gfs2_sbd *gl_sbd;
@ -233,29 +228,24 @@ enum {
GIF_USER = 4, /* user inode, not metadata addr space */
};
struct gfs2_dinode_host {
u64 di_size; /* number of bytes in file */
u64 di_generation; /* generation number for NFS */
u32 di_flags; /* GFS2_DIF_... */
/* These only apply to directories */
u32 di_entries; /* The number of entries in the directory */
u64 di_eattr; /* extended attribute block number */
};
struct gfs2_inode {
struct inode i_inode;
u64 i_no_addr;
u64 i_no_formal_ino;
u64 i_generation;
u64 i_eattr;
loff_t i_disksize;
unsigned long i_flags; /* GIF_... */
struct gfs2_dinode_host i_di; /* To be replaced by ref to block */
struct gfs2_glock *i_gl; /* Move into i_gh? */
struct gfs2_holder i_iopen_gh;
struct gfs2_holder i_gh; /* for prepare/commit_write only */
struct gfs2_alloc *i_alloc;
u64 i_goal; /* goal block for allocations */
struct rw_semaphore i_rw_mutex;
struct list_head i_trunc_list;
u32 i_entries;
u32 i_diskflags;
u8 i_height;
u8 i_depth;
};
@ -406,13 +396,11 @@ struct gfs2_args {
struct gfs2_tune {
spinlock_t gt_spin;
unsigned int gt_demote_secs; /* Cache retention for unheld glock */
unsigned int gt_incore_log_blocks;
unsigned int gt_log_flush_secs;
unsigned int gt_recoverd_secs;
unsigned int gt_logd_secs;
unsigned int gt_quotad_secs;
unsigned int gt_quota_simul_sync; /* Max quotavals to sync at once */
unsigned int gt_quota_warn_period; /* Secs between quota warn msgs */
@ -488,10 +476,6 @@ struct gfs2_sbd {
/* Lock Stuff */
struct lm_lockstruct sd_lockstruct;
struct list_head sd_reclaim_list;
spinlock_t sd_reclaim_lock;
wait_queue_head_t sd_reclaim_wq;
atomic_t sd_reclaim_count;
struct gfs2_holder sd_live_gh;
struct gfs2_glock *sd_rename_gl;
struct gfs2_glock *sd_trans_gl;
@ -519,7 +503,6 @@ struct gfs2_sbd {
spinlock_t sd_statfs_spin;
struct gfs2_statfs_change_host sd_statfs_master;
struct gfs2_statfs_change_host sd_statfs_local;
unsigned long sd_statfs_sync_time;
/* Resource group stuff */
@ -552,8 +535,6 @@ struct gfs2_sbd {
struct task_struct *sd_recoverd_process;
struct task_struct *sd_logd_process;
struct task_struct *sd_quotad_process;
struct task_struct *sd_glockd_process[GFS2_GLOCKD_MAX];
unsigned int sd_glockd_num;
/* Quota stuff */
@ -561,13 +542,15 @@ struct gfs2_sbd {
atomic_t sd_quota_count;
spinlock_t sd_quota_spin;
struct mutex sd_quota_mutex;
wait_queue_head_t sd_quota_wait;
struct list_head sd_trunc_list;
spinlock_t sd_trunc_lock;
unsigned int sd_quota_slots;
unsigned int sd_quota_chunks;
unsigned char **sd_quota_bitmap;
u64 sd_quota_sync_gen;
unsigned long sd_quota_sync_time;
/* Log stuff */
@ -624,10 +607,6 @@ struct gfs2_sbd {
struct mutex sd_freeze_lock;
unsigned int sd_freeze_count;
/* Counters */
atomic_t sd_reclaimed;
char sd_fsname[GFS2_FSNAME_LEN];
char sd_table_name[GFS2_FSNAME_LEN];
char sd_proto_name[GFS2_FSNAME_LEN];

53
fs/gfs2/inode.c
View File

@ -32,7 +32,6 @@
#include "log.h"
#include "meta_io.h"
#include "ops_address.h"
#include "ops_inode.h"
#include "quota.h"
#include "rgrp.h"
#include "trans.h"
@ -248,7 +247,6 @@ struct inode *gfs2_inode_lookup(struct super_block *sb,
static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
{
struct gfs2_dinode_host *di = &ip->i_di;
const struct gfs2_dinode *str = buf;
struct timespec atime;
u16 height, depth;
@ -274,8 +272,8 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
* to do that.
*/
ip->i_inode.i_nlink = be32_to_cpu(str->di_nlink);
di->di_size = be64_to_cpu(str->di_size);
i_size_write(&ip->i_inode, di->di_size);
ip->i_disksize = be64_to_cpu(str->di_size);
i_size_write(&ip->i_inode, ip->i_disksize);
gfs2_set_inode_blocks(&ip->i_inode, be64_to_cpu(str->di_blocks));
atime.tv_sec = be64_to_cpu(str->di_atime);
atime.tv_nsec = be32_to_cpu(str->di_atime_nsec);
@ -287,9 +285,9 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
ip->i_inode.i_ctime.tv_nsec = be32_to_cpu(str->di_ctime_nsec);
ip->i_goal = be64_to_cpu(str->di_goal_meta);
di->di_generation = be64_to_cpu(str->di_generation);
ip->i_generation = be64_to_cpu(str->di_generation);
di->di_flags = be32_to_cpu(str->di_flags);
ip->i_diskflags = be32_to_cpu(str->di_flags);
gfs2_set_inode_flags(&ip->i_inode);
height = be16_to_cpu(str->di_height);
if (unlikely(height > GFS2_MAX_META_HEIGHT))
@ -300,9 +298,9 @@ static int gfs2_dinode_in(struct gfs2_inode *ip, const void *buf)
if (unlikely(depth > GFS2_DIR_MAX_DEPTH))
goto corrupt;
ip->i_depth = (u8)depth;
di->di_entries = be32_to_cpu(str->di_entries);
ip->i_entries = be32_to_cpu(str->di_entries);
di->di_eattr = be64_to_cpu(str->di_eattr);
ip->i_eattr = be64_to_cpu(str->di_eattr);
if (S_ISREG(ip->i_inode.i_mode))
gfs2_set_aops(&ip->i_inode);
@ -388,7 +386,6 @@ int gfs2_dinode_dealloc(struct gfs2_inode *ip)
gfs2_free_di(rgd, ip);
gfs2_trans_end(sdp);
clear_bit(GLF_STICKY, &ip->i_gl->gl_flags);
out_rg_gunlock:
gfs2_glock_dq_uninit(&al->al_rgd_gh);
@ -690,7 +687,7 @@ static int create_ok(struct gfs2_inode *dip, const struct qstr *name,
return error;
}
if (dip->i_di.di_entries == (u32)-1)
if (dip->i_entries == (u32)-1)
return -EFBIG;
if (S_ISDIR(mode) && dip->i_inode.i_nlink == (u32)-1)
return -EMLINK;
@ -790,11 +787,11 @@ static void init_dinode(struct gfs2_inode *dip, struct gfs2_glock *gl,
di->di_flags = 0;
if (S_ISREG(mode)) {
if ((dip->i_di.di_flags & GFS2_DIF_INHERIT_JDATA) ||
if ((dip->i_diskflags & GFS2_DIF_INHERIT_JDATA) ||
gfs2_tune_get(sdp, gt_new_files_jdata))
di->di_flags |= cpu_to_be32(GFS2_DIF_JDATA);
} else if (S_ISDIR(mode)) {
di->di_flags |= cpu_to_be32(dip->i_di.di_flags &
di->di_flags |= cpu_to_be32(dip->i_diskflags &
GFS2_DIF_INHERIT_JDATA);
}
@ -1068,7 +1065,7 @@ int gfs2_rmdiri(struct gfs2_inode *dip, const struct qstr *name,
struct qstr dotname;
int error;
if (ip->i_di.di_entries != 2) {
if (ip->i_entries != 2) {
if (gfs2_consist_inode(ip))
gfs2_dinode_print(ip);
return -EIO;
@ -1168,7 +1165,7 @@ int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len)
return error;
}
if (!ip->i_di.di_size) {
if (!ip->i_disksize) {
gfs2_consist_inode(ip);
error = -EIO;
goto out;
@ -1178,7 +1175,7 @@ int gfs2_readlinki(struct gfs2_inode *ip, char **buf, unsigned int *len)
if (error)
goto out;
x = ip->i_di.di_size + 1;
x = ip->i_disksize + 1;
if (x > *len) {
*buf = kmalloc(x, GFP_NOFS);
if (!*buf) {
@ -1242,7 +1239,6 @@ int gfs2_setattr_simple(struct gfs2_inode *ip, struct iattr *attr)
void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
{
const struct gfs2_dinode_host *di = &ip->i_di;
struct gfs2_dinode *str = buf;
str->di_header.mh_magic = cpu_to_be32(GFS2_MAGIC);
@ -1256,7 +1252,7 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
str->di_uid = cpu_to_be32(ip->i_inode.i_uid);
str->di_gid = cpu_to_be32(ip->i_inode.i_gid);
str->di_nlink = cpu_to_be32(ip->i_inode.i_nlink);
str->di_size = cpu_to_be64(di->di_size);
str->di_size = cpu_to_be64(ip->i_disksize);
str->di_blocks = cpu_to_be64(gfs2_get_inode_blocks(&ip->i_inode));
str->di_atime = cpu_to_be64(ip->i_inode.i_atime.tv_sec);
str->di_mtime = cpu_to_be64(ip->i_inode.i_mtime.tv_sec);
@ -1264,17 +1260,17 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
str->di_goal_meta = cpu_to_be64(ip->i_goal);
str->di_goal_data = cpu_to_be64(ip->i_goal);
str->di_generation = cpu_to_be64(di->di_generation);
str->di_generation = cpu_to_be64(ip->i_generation);
str->di_flags = cpu_to_be32(di->di_flags);
str->di_flags = cpu_to_be32(ip->i_diskflags);
str->di_height = cpu_to_be16(ip->i_height);
str->di_payload_format = cpu_to_be32(S_ISDIR(ip->i_inode.i_mode) &&
!(ip->i_di.di_flags & GFS2_DIF_EXHASH) ?
!(ip->i_diskflags & GFS2_DIF_EXHASH) ?
GFS2_FORMAT_DE : 0);
str->di_depth = cpu_to_be16(ip->i_depth);
str->di_entries = cpu_to_be32(di->di_entries);
str->di_entries = cpu_to_be32(ip->i_entries);
str->di_eattr = cpu_to_be64(di->di_eattr);
str->di_eattr = cpu_to_be64(ip->i_eattr);
str->di_atime_nsec = cpu_to_be32(ip->i_inode.i_atime.tv_nsec);
str->di_mtime_nsec = cpu_to_be32(ip->i_inode.i_mtime.tv_nsec);
str->di_ctime_nsec = cpu_to_be32(ip->i_inode.i_ctime.tv_nsec);
@ -1282,22 +1278,21 @@ void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf)
void gfs2_dinode_print(const struct gfs2_inode *ip)
{
const struct gfs2_dinode_host *di = &ip->i_di;
printk(KERN_INFO " no_formal_ino = %llu\n",
(unsigned long long)ip->i_no_formal_ino);
printk(KERN_INFO " no_addr = %llu\n",
(unsigned long long)ip->i_no_addr);
printk(KERN_INFO " di_size = %llu\n", (unsigned long long)di->di_size);
printk(KERN_INFO " i_disksize = %llu\n",
(unsigned long long)ip->i_disksize);
printk(KERN_INFO " blocks = %llu\n",
(unsigned long long)gfs2_get_inode_blocks(&ip->i_inode));
printk(KERN_INFO " i_goal = %llu\n",
(unsigned long long)ip->i_goal);
printk(KERN_INFO " di_flags = 0x%.8X\n", di->di_flags);
printk(KERN_INFO " i_diskflags = 0x%.8X\n", ip->i_diskflags);
printk(KERN_INFO " i_height = %u\n", ip->i_height);
printk(KERN_INFO " i_depth = %u\n", ip->i_depth);
printk(KERN_INFO " di_entries = %u\n", di->di_entries);
printk(KERN_INFO " di_eattr = %llu\n",
(unsigned long long)di->di_eattr);
printk(KERN_INFO " i_entries = %u\n", ip->i_entries);
printk(KERN_INFO " i_eattr = %llu\n",
(unsigned long long)ip->i_eattr);
}

13
fs/gfs2/inode.h
View File

@ -10,6 +10,7 @@
#ifndef __INODE_DOT_H__
#define __INODE_DOT_H__
#include <linux/fs.h>
#include "util.h"
static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
@ -19,7 +20,7 @@ static inline int gfs2_is_stuffed(const struct gfs2_inode *ip)
static inline int gfs2_is_jdata(const struct gfs2_inode *ip)
{
return ip->i_di.di_flags & GFS2_DIF_JDATA;
return ip->i_diskflags & GFS2_DIF_JDATA;
}
static inline int gfs2_is_writeback(const struct gfs2_inode *ip)
@ -97,5 +98,15 @@ struct inode *gfs2_lookup_simple(struct inode *dip, const char *name);
void gfs2_dinode_out(const struct gfs2_inode *ip, void *buf);
void gfs2_dinode_print(const struct gfs2_inode *ip);
extern const struct inode_operations gfs2_file_iops;
extern const struct inode_operations gfs2_dir_iops;
extern const struct inode_operations gfs2_symlink_iops;
extern const struct file_operations gfs2_file_fops;
extern const struct file_operations gfs2_dir_fops;
extern const struct file_operations gfs2_file_fops_nolock;
extern const struct file_operations gfs2_dir_fops_nolock;
extern void gfs2_set_inode_flags(struct inode *inode);
#endif /* __INODE_DOT_H__ */

12
fs/gfs2/locking/dlm/mount.c
View File

@ -194,17 +194,25 @@ static void gdlm_unmount(void *lockspace)
static void gdlm_recovery_done(void *lockspace, unsigned int jid,
unsigned int message)
{
char env_jid[20];
char env_status[20];
char *envp[] = { env_jid, env_status, NULL };
struct gdlm_ls *ls = lockspace;
ls->recover_jid_done = jid;
ls->recover_jid_status = message;
kobject_uevent(&ls->kobj, KOBJ_CHANGE);
sprintf(env_jid, "JID=%d", jid);
sprintf(env_status, "RECOVERY=%s",
message == LM_RD_SUCCESS ? "Done" : "Failed");
kobject_uevent_env(&ls->kobj, KOBJ_CHANGE, envp);
}
static void gdlm_others_may_mount(void *lockspace)
{
char *message = "FIRSTMOUNT=Done";
char *envp[] = { message, NULL };
struct gdlm_ls *ls = lockspace;
ls->first_done = 1;
kobject_uevent(&ls->kobj, KOBJ_CHANGE);
kobject_uevent_env(&ls->kobj, KOBJ_CHANGE, envp);
}
/* Userspace gets the offline uevent, blocks new gfs locks on

16
fs/gfs2/locking/dlm/sysfs.c
View File

@ -195,9 +195,23 @@ void gdlm_kobject_release(struct gdlm_ls *ls)
kobject_put(&ls->kobj);
}
static int gdlm_uevent(struct kset *kset, struct kobject *kobj,
struct kobj_uevent_env *env)
{
struct gdlm_ls *ls = container_of(kobj, struct gdlm_ls, kobj);
add_uevent_var(env, "LOCKTABLE=%s:%s", ls->clustername, ls->fsname);
add_uevent_var(env, "LOCKPROTO=lock_dlm");
return 0;
}
static struct kset_uevent_ops gdlm_uevent_ops = {
.uevent = gdlm_uevent,
};
int gdlm_sysfs_init(void)
{
gdlm_kset = kset_create_and_add("lock_dlm", NULL, kernel_kobj);
gdlm_kset = kset_create_and_add("lock_dlm", &gdlm_uevent_ops, kernel_kobj);
if (!gdlm_kset) {
printk(KERN_WARNING "%s: can not create kset\n", __func__);
return -ENOMEM;

15
fs/gfs2/main.c
View File

@ -19,7 +19,7 @@
#include "gfs2.h"
#include "incore.h"
#include "ops_fstype.h"
#include "super.h"
#include "sys.h"
#include "util.h"
#include "glock.h"
@ -30,6 +30,7 @@ static void gfs2_init_inode_once(void *foo)
inode_init_once(&ip->i_inode);
init_rwsem(&ip->i_rw_mutex);
INIT_LIST_HEAD(&ip->i_trunc_list);
ip->i_alloc = NULL;
}
@ -42,7 +43,7 @@ static void gfs2_init_glock_once(void *foo)
INIT_LIST_HEAD(&gl->gl_holders);
gl->gl_lvb = NULL;
atomic_set(&gl->gl_lvb_count, 0);
INIT_LIST_HEAD(&gl->gl_reclaim);
INIT_LIST_HEAD(&gl->gl_lru);
INIT_LIST_HEAD(&gl->gl_ail_list);
atomic_set(&gl->gl_ail_count, 0);
}
@ -93,6 +94,12 @@ static int __init init_gfs2_fs(void)
if (!gfs2_rgrpd_cachep)
goto fail;
gfs2_quotad_cachep = kmem_cache_create("gfs2_quotad",
sizeof(struct gfs2_quota_data),
0, 0, NULL);
if (!gfs2_quotad_cachep)
goto fail;
error = register_filesystem(&gfs2_fs_type);
if (error)
goto fail;
@ -112,6 +119,9 @@ static int __init init_gfs2_fs(void)
fail:
gfs2_glock_exit();
if (gfs2_quotad_cachep)
kmem_cache_destroy(gfs2_quotad_cachep);
if (gfs2_rgrpd_cachep)
kmem_cache_destroy(gfs2_rgrpd_cachep);
@ -140,6 +150,7 @@ static void __exit exit_gfs2_fs(void)
unregister_filesystem(&gfs2_fs_type);
unregister_filesystem(&gfs2meta_fs_type);
kmem_cache_destroy(gfs2_quotad_cachep);
kmem_cache_destroy(gfs2_rgrpd_cachep);
kmem_cache_destroy(gfs2_bufdata_cachep);
kmem_cache_destroy(gfs2_inode_cachep);

29
fs/gfs2/mount.c
View File

@ -32,7 +32,6 @@ enum {
Opt_debug,
Opt_nodebug,
Opt_upgrade,
Opt_num_glockd,
Opt_acl,
Opt_noacl,
Opt_quota_off,
@ -57,7 +56,6 @@ static const match_table_t tokens = {
{Opt_debug, "debug"},
{Opt_nodebug, "nodebug"},
{Opt_upgrade, "upgrade"},
{Opt_num_glockd, "num_glockd=%d"},
{Opt_acl, "acl"},
{Opt_noacl, "noacl"},
{Opt_quota_off, "quota=off"},
@ -87,16 +85,7 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, char *data_arg, int remount)
int error = 0;
if (!remount) {
/* If someone preloaded options, use those instead */
spin_lock(&gfs2_sys_margs_lock);
if (gfs2_sys_margs) {
data = gfs2_sys_margs;
gfs2_sys_margs = NULL;
}
spin_unlock(&gfs2_sys_margs_lock);
/* Set some defaults */
args->ar_num_glockd = GFS2_GLOCKD_DEFAULT;
args->ar_quota = GFS2_QUOTA_DEFAULT;
args->ar_data = GFS2_DATA_DEFAULT;
}
@ -105,7 +94,7 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, char *data_arg, int remount)
process them */
for (options = data; (o = strsep(&options, ",")); ) {
int token, option;
int token;
substring_t tmp[MAX_OPT_ARGS];
if (!*o)
@ -196,22 +185,6 @@ int gfs2_mount_args(struct gfs2_sbd *sdp, char *data_arg, int remount)
goto cant_remount;
args->ar_upgrade = 1;
break;
case Opt_num_glockd:
if ((error = match_int(&tmp[0], &option))) {
fs_info(sdp, "problem getting num_glockd\n");
goto out_error;
}
if (remount && option != args->ar_num_glockd)
goto cant_remount;
if (!option || option > GFS2_GLOCKD_MAX) {
fs_info(sdp, "0 < num_glockd <= %u (not %u)\n",
GFS2_GLOCKD_MAX, option);
error = -EINVAL;
goto out_error;
}
args->ar_num_glockd = option;
break;
case Opt_acl:
args->ar_posix_acl = 1;
sdp->sd_vfs->s_flags |= MS_POSIXACL;

32
fs/gfs2/ops_address.c
View File

@ -210,25 +210,23 @@ static int gfs2_jdata_writepage(struct page *page, struct writeback_control *wbc
{
struct inode *inode = page->mapping->host;
struct gfs2_sbd *sdp = GFS2_SB(inode);
int error;
int ret;
int done_trans = 0;
error = gfs2_writepage_common(page, wbc);
if (error <= 0)
return error;
if (PageChecked(page)) {
if (wbc->sync_mode != WB_SYNC_ALL)
goto out_ignore;
error = gfs2_trans_begin(sdp, RES_DINODE + 1, 0);
if (error)
ret = gfs2_trans_begin(sdp, RES_DINODE + 1, 0);
if (ret)
goto out_ignore;
done_trans = 1;
}
error = __gfs2_jdata_writepage(page, wbc);
ret = gfs2_writepage_common(page, wbc);
if (ret > 0)
ret = __gfs2_jdata_writepage(page, wbc);
if (done_trans)
gfs2_trans_end(sdp);
return error;
return ret;
out_ignore:
redirty_page_for_writepage(wbc, page);
@ -453,8 +451,8 @@ static int stuffed_readpage(struct gfs2_inode *ip, struct page *page)
kaddr = kmap_atomic(page, KM_USER0);
memcpy(kaddr, dibh->b_data + sizeof(struct gfs2_dinode),
ip->i_di.di_size);
memset(kaddr + ip->i_di.di_size, 0, PAGE_CACHE_SIZE - ip->i_di.di_size);
ip->i_disksize);
memset(kaddr + ip->i_disksize, 0, PAGE_CACHE_SIZE - ip->i_disksize);
kunmap_atomic(kaddr, KM_USER0);
flush_dcache_page(page);
brelse(dibh);
@ -627,7 +625,7 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping,
{
struct gfs2_inode *ip = GFS2_I(mapping->host);
struct gfs2_sbd *sdp = GFS2_SB(mapping->host);
unsigned int data_blocks, ind_blocks, rblocks;
unsigned int data_blocks = 0, ind_blocks = 0, rblocks;
int alloc_required;
int error = 0;
struct gfs2_alloc *al;
@ -641,11 +639,13 @@ static int gfs2_write_begin(struct file *file, struct address_space *mapping,
if (unlikely(error))
goto out_uninit;
gfs2_write_calc_reserv(ip, len, &data_blocks, &ind_blocks);
error = gfs2_write_alloc_required(ip, pos, len, &alloc_required);
if (error)
goto out_unlock;
if (alloc_required || gfs2_is_jdata(ip))
gfs2_write_calc_reserv(ip, len, &data_blocks, &ind_blocks);
if (alloc_required) {
al = gfs2_alloc_get(ip);
if (!al) {
@ -782,7 +782,7 @@ static int gfs2_stuffed_write_end(struct inode *inode, struct buffer_head *dibh,
if (inode->i_size < to) {
i_size_write(inode, to);
ip->i_di.di_size = inode->i_size;
ip->i_disksize = inode->i_size;
di->di_size = cpu_to_be64(inode->i_size);
mark_inode_dirty(inode);
}
@ -847,9 +847,9 @@ static int gfs2_write_end(struct file *file, struct address_space *mapping,
ret = generic_write_end(file, mapping, pos, len, copied, page, fsdata);
if (likely(ret >= 0) && (inode->i_size > ip->i_di.di_size)) {
if (likely(ret >= 0) && (inode->i_size > ip->i_disksize)) {
di = (struct gfs2_dinode *)dibh->b_data;
ip->i_di.di_size = inode->i_size;
ip->i_disksize = inode->i_size;
di->di_size = cpu_to_be64(inode->i_size);
mark_inode_dirty(inode);
}

2
fs/gfs2/ops_dentry.c
View File

@ -19,7 +19,7 @@
#include "incore.h"
#include "dir.h"
#include "glock.h"
#include "ops_dentry.h"
#include "super.h"
#include "util.h"
#include "inode.h"

17
fs/gfs2/ops_dentry.h
View File

@ -1,17 +0,0 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
#ifndef __OPS_DENTRY_DOT_H__
#define __OPS_DENTRY_DOT_H__
#include <linux/dcache.h>
extern struct dentry_operations gfs2_dops;
#endif /* __OPS_DENTRY_DOT_H__ */

5
fs/gfs2/ops_export.c
View File

@ -22,8 +22,7 @@
#include "glock.h"
#include "glops.h"
#include "inode.h"
#include "ops_dentry.h"
#include "ops_fstype.h"
#include "super.h"
#include "rgrp.h"
#include "util.h"
@ -214,7 +213,7 @@ static struct dentry *gfs2_get_dentry(struct super_block *sb,
}
error = -EIO;
if (GFS2_I(inode)->i_di.di_flags & GFS2_DIF_SYSTEM) {
if (GFS2_I(inode)->i_diskflags & GFS2_DIF_SYSTEM) {
iput(inode);
goto fail;
}

22
fs/gfs2/ops_file.c
View File

@ -39,7 +39,6 @@
#include "util.h"
#include "eaops.h"
#include "ops_address.h"
#include "ops_inode.h"
/**
* gfs2_llseek - seek to a location in a file
@ -158,8 +157,8 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
if (error)
return error;
fsflags = fsflags_cvt(gfs2_to_fsflags, ip->i_di.di_flags);
if (!S_ISDIR(inode->i_mode) && ip->i_di.di_flags & GFS2_DIF_JDATA)
fsflags = fsflags_cvt(gfs2_to_fsflags, ip->i_diskflags);
if (!S_ISDIR(inode->i_mode) && ip->i_diskflags & GFS2_DIF_JDATA)
fsflags |= FS_JOURNAL_DATA_FL;
if (put_user(fsflags, ptr))
error = -EFAULT;
@ -172,17 +171,16 @@ static int gfs2_get_flags(struct file *filp, u32 __user *ptr)
void gfs2_set_inode_flags(struct inode *inode)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_dinode_host *di = &ip->i_di;
unsigned int flags = inode->i_flags;
flags &= ~(S_SYNC|S_APPEND|S_IMMUTABLE|S_NOATIME|S_DIRSYNC);
if (di->di_flags & GFS2_DIF_IMMUTABLE)
if (ip->i_diskflags & GFS2_DIF_IMMUTABLE)
flags |= S_IMMUTABLE;
if (di->di_flags & GFS2_DIF_APPENDONLY)
if (ip->i_diskflags & GFS2_DIF_APPENDONLY)
flags |= S_APPEND;
if (di->di_flags & GFS2_DIF_NOATIME)
if (ip->i_diskflags & GFS2_DIF_NOATIME)
flags |= S_NOATIME;
if (di->di_flags & GFS2_DIF_SYNC)
if (ip->i_diskflags & GFS2_DIF_SYNC)
flags |= S_SYNC;
inode->i_flags = flags;
}
@ -221,7 +219,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
if (error)
goto out_drop_write;
flags = ip->i_di.di_flags;
flags = ip->i_diskflags;
new_flags = (flags & ~mask) | (reqflags & mask);
if ((new_flags ^ flags) == 0)
goto out;
@ -260,7 +258,7 @@ static int do_gfs2_set_flags(struct file *filp, u32 reqflags, u32 mask)
if (error)
goto out_trans_end;
gfs2_trans_add_bh(ip->i_gl, bh, 1);
ip->i_di.di_flags = new_flags;
ip->i_diskflags = new_flags;
gfs2_dinode_out(ip, bh->b_data);
brelse(bh);
gfs2_set_inode_flags(inode);
@ -357,7 +355,6 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct page *page)
goto out;
set_bit(GIF_SW_PAGED, &ip->i_flags);
gfs2_write_calc_reserv(ip, PAGE_CACHE_SIZE, &data_blocks, &ind_blocks);
ret = gfs2_write_alloc_required(ip, pos, PAGE_CACHE_SIZE, &alloc_required);
if (ret || !alloc_required)
goto out_unlock;
@ -369,6 +366,7 @@ static int gfs2_page_mkwrite(struct vm_area_struct *vma, struct page *page)
ret = gfs2_quota_lock_check(ip);
if (ret)
goto out_alloc_put;
gfs2_write_calc_reserv(ip, PAGE_CACHE_SIZE, &data_blocks, &ind_blocks);
al->al_requested = data_blocks + ind_blocks;
ret = gfs2_inplace_reserve(ip);
if (ret)
@ -479,7 +477,7 @@ static int gfs2_open(struct inode *inode, struct file *file)
goto fail;
if (!(file->f_flags & O_LARGEFILE) &&
ip->i_di.di_size > MAX_NON_LFS) {
ip->i_disksize > MAX_NON_LFS) {
error = -EOVERFLOW;
goto fail_gunlock;
}

125
fs/gfs2/ops_fstype.c
View File

@ -22,20 +22,18 @@
#include "gfs2.h"
#include "incore.h"
#include "bmap.h"
#include "daemon.h"
#include "glock.h"
#include "glops.h"
#include "inode.h"
#include "mount.h"
#include "ops_fstype.h"
#include "ops_dentry.h"
#include "ops_super.h"
#include "recovery.h"
#include "rgrp.h"
#include "super.h"
#include "sys.h"
#include "util.h"
#include "log.h"
#include "quota.h"
#include "dir.h"
#define DO 0
#define UNDO 1
@ -58,12 +56,10 @@ static void gfs2_tune_init(struct gfs2_tune *gt)
{
spin_lock_init(&gt->gt_spin);
gt->gt_demote_secs = 300;
gt->gt_incore_log_blocks = 1024;
gt->gt_log_flush_secs = 60;
gt->gt_recoverd_secs = 60;
gt->gt_logd_secs = 1;
gt->gt_quotad_secs = 5;
gt->gt_quota_simul_sync = 64;
gt->gt_quota_warn_period = 10;
gt->gt_quota_scale_num = 1;
@ -91,10 +87,6 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
gfs2_tune_init(&sdp->sd_tune);
INIT_LIST_HEAD(&sdp->sd_reclaim_list);
spin_lock_init(&sdp->sd_reclaim_lock);
init_waitqueue_head(&sdp->sd_reclaim_wq);
mutex_init(&sdp->sd_inum_mutex);
spin_lock_init(&sdp->sd_statfs_spin);
@ -110,6 +102,9 @@ static struct gfs2_sbd *init_sbd(struct super_block *sb)
INIT_LIST_HEAD(&sdp->sd_quota_list);
spin_lock_init(&sdp->sd_quota_spin);
mutex_init(&sdp->sd_quota_mutex);
init_waitqueue_head(&sdp->sd_quota_wait);
INIT_LIST_HEAD(&sdp->sd_trunc_list);
spin_lock_init(&sdp->sd_trunc_lock);
spin_lock_init(&sdp->sd_log_lock);
@ -443,24 +438,11 @@ static int init_names(struct gfs2_sbd *sdp, int silent)
static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
int undo)
{
struct task_struct *p;
int error = 0;
if (undo)
goto fail_trans;
for (sdp->sd_glockd_num = 0;
sdp->sd_glockd_num < sdp->sd_args.ar_num_glockd;
sdp->sd_glockd_num++) {
p = kthread_run(gfs2_glockd, sdp, "gfs2_glockd");
error = IS_ERR(p);
if (error) {
fs_err(sdp, "can't start glockd thread: %d\n", error);
goto fail;
}
sdp->sd_glockd_process[sdp->sd_glockd_num] = p;
}
error = gfs2_glock_nq_num(sdp,
GFS2_MOUNT_LOCK, &gfs2_nondisk_glops,
LM_ST_EXCLUSIVE, LM_FLAG_NOEXP | GL_NOCACHE,
@ -493,7 +475,6 @@ static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
fs_err(sdp, "can't create transaction glock: %d\n", error);
goto fail_rename;
}
set_bit(GLF_STICKY, &sdp->sd_trans_gl->gl_flags);
return 0;
@ -506,9 +487,6 @@ static int init_locking(struct gfs2_sbd *sdp, struct gfs2_holder *mount_gh,
fail_mount:
gfs2_glock_dq_uninit(mount_gh);
fail:
while (sdp->sd_glockd_num--)
kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]);
return error;
}
@ -620,7 +598,7 @@ static int map_journal_extents(struct gfs2_sbd *sdp)
prev_db = 0;
for (lb = 0; lb < ip->i_di.di_size >> sdp->sd_sb.sb_bsize_shift; lb++) {
for (lb = 0; lb < ip->i_disksize >> sdp->sd_sb.sb_bsize_shift; lb++) {
bh.b_state = 0;
bh.b_blocknr = 0;
bh.b_size = 1 << ip->i_inode.i_blkbits;
@ -661,6 +639,72 @@ static void gfs2_lm_others_may_mount(struct gfs2_sbd *sdp)
sdp->sd_lockstruct.ls_lockspace);
}
/**
* gfs2_jindex_hold - Grab a lock on the jindex
* @sdp: The GFS2 superblock
* @ji_gh: the holder for the jindex glock
*
* Returns: errno
*/
static int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
{
struct gfs2_inode *dip = GFS2_I(sdp->sd_jindex);
struct qstr name;
char buf[20];
struct gfs2_jdesc *jd;
int error;
name.name = buf;
mutex_lock(&sdp->sd_jindex_mutex);
for (;;) {
error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, ji_gh);
if (error)
break;
name.len = sprintf(buf, "journal%u", sdp->sd_journals);
name.hash = gfs2_disk_hash(name.name, name.len);
error = gfs2_dir_check(sdp->sd_jindex, &name, NULL);
if (error == -ENOENT) {
error = 0;
break;
}
gfs2_glock_dq_uninit(ji_gh);
if (error)
break;
error = -ENOMEM;
jd = kzalloc(sizeof(struct gfs2_jdesc), GFP_KERNEL);
if (!jd)
break;
INIT_LIST_HEAD(&jd->extent_list);
jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1);
if (!jd->jd_inode || IS_ERR(jd->jd_inode)) {
if (!jd->jd_inode)
error = -ENOENT;
else
error = PTR_ERR(jd->jd_inode);
kfree(jd);
break;
}
spin_lock(&sdp->sd_jindex_spin);
jd->jd_jid = sdp->sd_journals++;
list_add_tail(&jd->jd_list, &sdp->sd_jindex_list);
spin_unlock(&sdp->sd_jindex_spin);
}
mutex_unlock(&sdp->sd_jindex_mutex);
return error;
}
static int init_journal(struct gfs2_sbd *sdp, int undo)
{
struct inode *master = sdp->sd_master_dir->d_inode;
@ -681,7 +725,6 @@ static int init_journal(struct gfs2_sbd *sdp, int undo)
return PTR_ERR(sdp->sd_jindex);
}
ip = GFS2_I(sdp->sd_jindex);
set_bit(GLF_STICKY, &ip->i_gl->gl_flags);
/* Load in the journal index special file */
@ -832,7 +875,6 @@ static int init_inodes(struct gfs2_sbd *sdp, int undo)
goto fail_statfs;
}
ip = GFS2_I(sdp->sd_rindex);
set_bit(GLF_STICKY, &ip->i_gl->gl_flags);
sdp->sd_rindex_uptodate = 0;
/* Read in the quota inode */
@ -973,9 +1015,6 @@ static int init_threads(struct gfs2_sbd *sdp, int undo)
}
sdp->sd_logd_process = p;
sdp->sd_statfs_sync_time = jiffies;
sdp->sd_quota_sync_time = jiffies;
p = kthread_run(gfs2_quotad, sdp, "gfs2_quotad");
error = IS_ERR(p);
if (error) {
@ -1224,17 +1263,21 @@ static int gfs2_get_sb_meta(struct file_system_type *fs_type, int flags,
static void gfs2_kill_sb(struct super_block *sb)
{
struct gfs2_sbd *sdp = sb->s_fs_info;
if (sdp) {
gfs2_meta_syncfs(sdp);
dput(sdp->sd_root_dir);
dput(sdp->sd_master_dir);
sdp->sd_root_dir = NULL;
sdp->sd_master_dir = NULL;
if (sdp == NULL) {
kill_block_super(sb);
return;
}
gfs2_meta_syncfs(sdp);
dput(sdp->sd_root_dir);
dput(sdp->sd_master_dir);
sdp->sd_root_dir = NULL;
sdp->sd_master_dir = NULL;
shrink_dcache_sb(sb);
kill_block_super(sb);
if (sdp)
gfs2_delete_debugfs_file(sdp);
gfs2_delete_debugfs_file(sdp);
kfree(sdp);
}
struct file_system_type gfs2_fs_type = {

19
fs/gfs2/ops_fstype.h
View File

@ -1,19 +0,0 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
#ifndef __OPS_FSTYPE_DOT_H__
#define __OPS_FSTYPE_DOT_H__
#include <linux/fs.h>
extern struct file_system_type gfs2_fs_type;
extern struct file_system_type gfs2meta_fs_type;
extern const struct export_operations gfs2_export_ops;
#endif /* __OPS_FSTYPE_DOT_H__ */

75
fs/gfs2/ops_inode.c
View File

@ -19,6 +19,7 @@
#include <linux/gfs2_ondisk.h>
#include <linux/crc32.h>
#include <linux/lm_interface.h>
#include <linux/fiemap.h>
#include <asm/uaccess.h>
#include "gfs2.h"
@ -31,12 +32,11 @@
#include "glock.h"
#include "inode.h"
#include "meta_io.h"
#include "ops_dentry.h"
#include "ops_inode.h"
#include "quota.h"
#include "rgrp.h"
#include "trans.h"
#include "util.h"
#include "super.h"
/**
* gfs2_create - Create a file
@ -185,7 +185,7 @@ static int gfs2_link(struct dentry *old_dentry, struct inode *dir,
if (!dip->i_inode.i_nlink)
goto out_gunlock;
error = -EFBIG;
if (dip->i_di.di_entries == (u32)-1)
if (dip->i_entries == (u32)-1)
goto out_gunlock;
error = -EPERM;
if (IS_IMMUTABLE(inode) || IS_APPEND(inode))
@ -371,7 +371,7 @@ static int gfs2_symlink(struct inode *dir, struct dentry *dentry,
ip = ghs[1].gh_gl->gl_object;
ip->i_di.di_size = size;
ip->i_disksize = size;
error = gfs2_meta_inode_buffer(ip, &dibh);
@ -425,9 +425,9 @@ static int gfs2_mkdir(struct inode *dir, struct dentry *dentry, int mode)
ip = ghs[1].gh_gl->gl_object;
ip->i_inode.i_nlink = 2;
ip->i_di.di_size = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode);
ip->i_di.di_flags |= GFS2_DIF_JDATA;
ip->i_di.di_entries = 2;
ip->i_disksize = sdp->sd_sb.sb_bsize - sizeof(struct gfs2_dinode);
ip->i_diskflags |= GFS2_DIF_JDATA;
ip->i_entries = 2;
error = gfs2_meta_inode_buffer(ip, &dibh);
@ -517,13 +517,13 @@ static int gfs2_rmdir(struct inode *dir, struct dentry *dentry)
if (error)
goto out_gunlock;
if (ip->i_di.di_entries < 2) {
if (ip->i_entries < 2) {
if (gfs2_consist_inode(ip))
gfs2_dinode_print(ip);
error = -EIO;
goto out_gunlock;
}
if (ip->i_di.di_entries > 2) {
if (ip->i_entries > 2) {
error = -ENOTEMPTY;
goto out_gunlock;
}
@ -726,13 +726,13 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
goto out_gunlock;
if (S_ISDIR(nip->i_inode.i_mode)) {
if (nip->i_di.di_entries < 2) {
if (nip->i_entries < 2) {
if (gfs2_consist_inode(nip))
gfs2_dinode_print(nip);
error = -EIO;
goto out_gunlock;
}
if (nip->i_di.di_entries > 2) {
if (nip->i_entries > 2) {
error = -ENOTEMPTY;
goto out_gunlock;
}
@ -758,7 +758,7 @@ static int gfs2_rename(struct inode *odir, struct dentry *odentry,
error = -EINVAL;
goto out_gunlock;
}
if (ndip->i_di.di_entries == (u32)-1) {
if (ndip->i_entries == (u32)-1) {
error = -EFBIG;
goto out_gunlock;
}
@ -990,7 +990,7 @@ static int setattr_size(struct inode *inode, struct iattr *attr)
struct gfs2_sbd *sdp = GFS2_SB(inode);
int error;
if (attr->ia_size != ip->i_di.di_size) {
if (attr->ia_size != ip->i_disksize) {
error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
if (error)
return error;
@ -1001,8 +1001,8 @@ static int setattr_size(struct inode *inode, struct iattr *attr)
}
error = gfs2_truncatei(ip, attr->ia_size);
if (error && (inode->i_size != ip->i_di.di_size))
i_size_write(inode, ip->i_di.di_size);
if (error && (inode->i_size != ip->i_disksize))
i_size_write(inode, ip->i_disksize);
return error;
}
@ -1212,6 +1212,48 @@ static int gfs2_removexattr(struct dentry *dentry, const char *name)
return gfs2_ea_remove(GFS2_I(dentry->d_inode), &er);
}
static int gfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
u64 start, u64 len)
{
struct gfs2_inode *ip = GFS2_I(inode);
struct gfs2_holder gh;
int ret;
ret = fiemap_check_flags(fieinfo, FIEMAP_FLAG_SYNC);
if (ret)
return ret;
mutex_lock(&inode->i_mutex);
ret = gfs2_glock_nq_init(ip->i_gl, LM_ST_SHARED, 0, &gh);
if (ret)
goto out;
if (gfs2_is_stuffed(ip)) {
u64 phys = ip->i_no_addr << inode->i_blkbits;
u64 size = i_size_read(inode);
u32 flags = FIEMAP_EXTENT_LAST|FIEMAP_EXTENT_NOT_ALIGNED|
FIEMAP_EXTENT_DATA_INLINE;
phys += sizeof(struct gfs2_dinode);
phys += start;
if (start + len > size)
len = size - start;
if (start < size)
ret = fiemap_fill_next_extent(fieinfo, start, phys,
len, flags);
if (ret == 1)
ret = 0;
} else {
ret = __generic_block_fiemap(inode, fieinfo, start, len,
gfs2_block_map);
}
gfs2_glock_dq_uninit(&gh);
out:
mutex_unlock(&inode->i_mutex);
return ret;
}
const struct inode_operations gfs2_file_iops = {
.permission = gfs2_permission,
.setattr = gfs2_setattr,
@ -1220,6 +1262,7 @@ const struct inode_operations gfs2_file_iops = {
.getxattr = gfs2_getxattr,
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
};
const struct inode_operations gfs2_dir_iops = {
@ -1239,6 +1282,7 @@ const struct inode_operations gfs2_dir_iops = {
.getxattr = gfs2_getxattr,
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
};
const struct inode_operations gfs2_symlink_iops = {
@ -1251,5 +1295,6 @@ const struct inode_operations gfs2_symlink_iops = {
.getxattr = gfs2_getxattr,
.listxattr = gfs2_listxattr,
.removexattr = gfs2_removexattr,
.fiemap = gfs2_fiemap,
};

25
fs/gfs2/ops_inode.h
View File

@ -1,25 +0,0 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
#ifndef __OPS_INODE_DOT_H__
#define __OPS_INODE_DOT_H__
#include <linux/fs.h>
extern const struct inode_operations gfs2_file_iops;
extern const struct inode_operations gfs2_dir_iops;
extern const struct inode_operations gfs2_symlink_iops;
extern const struct file_operations gfs2_file_fops;
extern const struct file_operations gfs2_dir_fops;
extern const struct file_operations gfs2_file_fops_nolock;
extern const struct file_operations gfs2_dir_fops_nolock;
extern void gfs2_set_inode_flags(struct inode *inode);
#endif /* __OPS_INODE_DOT_H__ */

149
fs/gfs2/ops_super.c
View File

@ -28,7 +28,6 @@
#include "inode.h"
#include "log.h"
#include "mount.h"
#include "ops_super.h"
#include "quota.h"
#include "recovery.h"
#include "rgrp.h"
@ -143,8 +142,6 @@ static void gfs2_put_super(struct super_block *sb)
kthread_stop(sdp->sd_quotad_process);
kthread_stop(sdp->sd_logd_process);
kthread_stop(sdp->sd_recoverd_process);
while (sdp->sd_glockd_num--)
kthread_stop(sdp->sd_glockd_process[sdp->sd_glockd_num]);
if (!(sb->s_flags & MS_RDONLY)) {
error = gfs2_make_fs_ro(sdp);
@ -185,7 +182,6 @@ static void gfs2_put_super(struct super_block *sb)
/* At this point, we're through participating in the lockspace */
gfs2_sys_fs_del(sdp);
kfree(sdp);
}
/**
@ -259,6 +255,137 @@ static void gfs2_unlockfs(struct super_block *sb)
gfs2_unfreeze_fs(sb->s_fs_info);
}
/**
* statfs_fill - fill in the sg for a given RG
* @rgd: the RG
* @sc: the sc structure
*
* Returns: 0 on success, -ESTALE if the LVB is invalid
*/
static int statfs_slow_fill(struct gfs2_rgrpd *rgd,
struct gfs2_statfs_change_host *sc)
{
gfs2_rgrp_verify(rgd);
sc->sc_total += rgd->rd_data;
sc->sc_free += rgd->rd_free;
sc->sc_dinodes += rgd->rd_dinodes;
return 0;
}
/**
* gfs2_statfs_slow - Stat a filesystem using asynchronous locking
* @sdp: the filesystem
* @sc: the sc info that will be returned
*
* Any error (other than a signal) will cause this routine to fall back
* to the synchronous version.
*
* FIXME: This really shouldn't busy wait like this.
*
* Returns: errno
*/
static int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
{
struct gfs2_holder ri_gh;
struct gfs2_rgrpd *rgd_next;
struct gfs2_holder *gha, *gh;
unsigned int slots = 64;
unsigned int x;
int done;
int error = 0, err;
memset(sc, 0, sizeof(struct gfs2_statfs_change_host));
gha = kcalloc(slots, sizeof(struct gfs2_holder), GFP_KERNEL);
if (!gha)
return -ENOMEM;
error = gfs2_rindex_hold(sdp, &ri_gh);
if (error)
goto out;
rgd_next = gfs2_rgrpd_get_first(sdp);
for (;;) {
done = 1;
for (x = 0; x < slots; x++) {
gh = gha + x;
if (gh->gh_gl && gfs2_glock_poll(gh)) {
err = gfs2_glock_wait(gh);
if (err) {
gfs2_holder_uninit(gh);
error = err;
} else {
if (!error)
error = statfs_slow_fill(
gh->gh_gl->gl_object, sc);
gfs2_glock_dq_uninit(gh);
}
}
if (gh->gh_gl)
done = 0;
else if (rgd_next && !error) {
error = gfs2_glock_nq_init(rgd_next->rd_gl,
LM_ST_SHARED,
GL_ASYNC,
gh);
rgd_next = gfs2_rgrpd_get_next(rgd_next);
done = 0;
}
if (signal_pending(current))
error = -ERESTARTSYS;
}
if (done)
break;
yield();
}
gfs2_glock_dq_uninit(&ri_gh);
out:
kfree(gha);
return error;
}
/**
* gfs2_statfs_i - Do a statfs
* @sdp: the filesystem
* @sg: the sg structure
*
* Returns: errno
*/
static int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
{
struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
spin_lock(&sdp->sd_statfs_spin);
*sc = *m_sc;
sc->sc_total += l_sc->sc_total;
sc->sc_free += l_sc->sc_free;
sc->sc_dinodes += l_sc->sc_dinodes;
spin_unlock(&sdp->sd_statfs_spin);
if (sc->sc_free < 0)
sc->sc_free = 0;
if (sc->sc_free > sc->sc_total)
sc->sc_free = sc->sc_total;
if (sc->sc_dinodes < 0)
sc->sc_dinodes = 0;
return 0;
}
/**
* gfs2_statfs - Gather and return stats about the filesystem
* @sb: The superblock
@ -370,7 +497,6 @@ static void gfs2_clear_inode(struct inode *inode)
*/
if (test_bit(GIF_USER, &ip->i_flags)) {
ip->i_gl->gl_object = NULL;
gfs2_glock_schedule_for_reclaim(ip->i_gl);
gfs2_glock_put(ip->i_gl);
ip->i_gl = NULL;
if (ip->i_iopen_gh.gh_gl) {
@ -423,8 +549,6 @@ static int gfs2_show_options(struct seq_file *s, struct vfsmount *mnt)
seq_printf(s, ",debug");
if (args->ar_upgrade)
seq_printf(s, ",upgrade");
if (args->ar_num_glockd != GFS2_GLOCKD_DEFAULT)
seq_printf(s, ",num_glockd=%u", args->ar_num_glockd);
if (args->ar_posix_acl)
seq_printf(s, ",acl");
if (args->ar_quota != GFS2_QUOTA_DEFAULT) {
@ -494,16 +618,16 @@ static void gfs2_delete_inode(struct inode *inode)
gfs2_holder_reinit(LM_ST_EXCLUSIVE, LM_FLAG_TRY_1CB | GL_NOCACHE, &ip->i_iopen_gh);
error = gfs2_glock_nq(&ip->i_iopen_gh);
if (error)
goto out_uninit;
goto out_truncate;
if (S_ISDIR(inode->i_mode) &&
(ip->i_di.di_flags & GFS2_DIF_EXHASH)) {
(ip->i_diskflags & GFS2_DIF_EXHASH)) {
error = gfs2_dir_exhash_dealloc(ip);
if (error)
goto out_unlock;
}
if (ip->i_di.di_eattr) {
if (ip->i_eattr) {
error = gfs2_ea_dealloc(ip);
if (error)
goto out_unlock;
@ -519,6 +643,7 @@ static void gfs2_delete_inode(struct inode *inode)
if (error)
goto out_unlock;
out_truncate:
error = gfs2_trans_begin(sdp, 0, sdp->sd_jdesc->jd_blocks);
if (error)
goto out_unlock;
@ -527,8 +652,8 @@ static void gfs2_delete_inode(struct inode *inode)
gfs2_trans_end(sdp);
out_unlock:
gfs2_glock_dq(&ip->i_iopen_gh);
out_uninit:
if (test_bit(HIF_HOLDER, &ip->i_iopen_gh.gh_iflags))
gfs2_glock_dq(&ip->i_iopen_gh);
gfs2_holder_uninit(&ip->i_iopen_gh);
gfs2_glock_dq_uninit(&gh);
if (error && error != GLR_TRYFAILED)

17
fs/gfs2/ops_super.h
View File

@ -1,17 +0,0 @@
/*
* Copyright (C) Sistina Software, Inc. 1997-2003 All rights reserved.
* Copyright (C) 2004-2006 Red Hat, Inc. All rights reserved.
*
* This copyrighted material is made available to anyone wishing to use,
* modify, copy, or redistribute it subject to the terms and conditions
* of the GNU General Public License version 2.
*/
#ifndef __OPS_SUPER_DOT_H__
#define __OPS_SUPER_DOT_H__
#include <linux/fs.h>
extern const struct super_operations gfs2_super_ops;
#endif /* __OPS_SUPER_DOT_H__ */

113
fs/gfs2/quota.c
View File

@ -46,6 +46,8 @@
#include <linux/bio.h>
#include <linux/gfs2_ondisk.h>
#include <linux/lm_interface.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
#include "gfs2.h"
#include "incore.h"
@ -94,7 +96,7 @@ static int qd_alloc(struct gfs2_sbd *sdp, int user, u32 id,
struct gfs2_quota_data *qd;
int error;
qd = kzalloc(sizeof(struct gfs2_quota_data), GFP_NOFS);
qd = kmem_cache_zalloc(gfs2_quotad_cachep, GFP_NOFS);
if (!qd)
return -ENOMEM;
@ -119,7 +121,7 @@ static int qd_alloc(struct gfs2_sbd *sdp, int user, u32 id,
return 0;
fail:
kfree(qd);
kmem_cache_free(gfs2_quotad_cachep, qd);
return error;
}
@ -158,7 +160,7 @@ static int qd_get(struct gfs2_sbd *sdp, int user, u32 id, int create,
if (qd || !create) {
if (new_qd) {
gfs2_lvb_unhold(new_qd->qd_gl);
kfree(new_qd);
kmem_cache_free(gfs2_quotad_cachep, new_qd);
}
*qdp = qd;
return 0;
@ -1013,7 +1015,7 @@ void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
if (gfs2_assert_warn(GFS2_SB(&ip->i_inode), change))
return;
if (ip->i_di.di_flags & GFS2_DIF_SYSTEM)
if (ip->i_diskflags & GFS2_DIF_SYSTEM)
return;
for (x = 0; x < al->al_qd_num; x++) {
@ -1100,15 +1102,15 @@ static void gfs2_quota_change_in(struct gfs2_quota_change_host *qc, const void *
int gfs2_quota_init(struct gfs2_sbd *sdp)
{
struct gfs2_inode *ip = GFS2_I(sdp->sd_qc_inode);
unsigned int blocks = ip->i_di.di_size >> sdp->sd_sb.sb_bsize_shift;
unsigned int blocks = ip->i_disksize >> sdp->sd_sb.sb_bsize_shift;
unsigned int x, slot = 0;
unsigned int found = 0;
u64 dblock;
u32 extlen = 0;
int error;
if (!ip->i_di.di_size || ip->i_di.di_size > (64 << 20) ||
ip->i_di.di_size & (sdp->sd_sb.sb_bsize - 1)) {
if (!ip->i_disksize || ip->i_disksize > (64 << 20) ||
ip->i_disksize & (sdp->sd_sb.sb_bsize - 1)) {
gfs2_consist_inode(ip);
return -EIO;
}
@ -1195,7 +1197,7 @@ int gfs2_quota_init(struct gfs2_sbd *sdp)
return error;
}
void gfs2_quota_scan(struct gfs2_sbd *sdp)
static void gfs2_quota_scan(struct gfs2_sbd *sdp)
{
struct gfs2_quota_data *qd, *safe;
LIST_HEAD(dead);
@ -1222,7 +1224,7 @@ void gfs2_quota_scan(struct gfs2_sbd *sdp)
gfs2_assert_warn(sdp, !qd->qd_bh_count);
gfs2_lvb_unhold(qd->qd_gl);
kfree(qd);
kmem_cache_free(gfs2_quotad_cachep, qd);
}
}
@ -1257,7 +1259,7 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
gfs2_assert_warn(sdp, !qd->qd_bh_count);
gfs2_lvb_unhold(qd->qd_gl);
kfree(qd);
kmem_cache_free(gfs2_quotad_cachep, qd);
spin_lock(&sdp->sd_quota_spin);
}
@ -1272,3 +1274,94 @@ void gfs2_quota_cleanup(struct gfs2_sbd *sdp)
}
}
static void quotad_error(struct gfs2_sbd *sdp, const char *msg, int error)
{
if (error == 0 || error == -EROFS)
return;
if (!test_bit(SDF_SHUTDOWN, &sdp->sd_flags))
fs_err(sdp, "gfs2_quotad: %s error %d\n", msg, error);
}
static void quotad_check_timeo(struct gfs2_sbd *sdp, const char *msg,
int (*fxn)(struct gfs2_sbd *sdp),
unsigned long t, unsigned long *timeo,
unsigned int *new_timeo)
{
if (t >= *timeo) {
int error = fxn(sdp);
quotad_error(sdp, msg, error);
*timeo = gfs2_tune_get_i(&sdp->sd_tune, new_timeo) * HZ;
} else {
*timeo -= t;
}
}
static void quotad_check_trunc_list(struct gfs2_sbd *sdp)
{
struct gfs2_inode *ip;
while(1) {
ip = NULL;
spin_lock(&sdp->sd_trunc_lock);
if (!list_empty(&sdp->sd_trunc_list)) {
ip = list_entry(sdp->sd_trunc_list.next,
struct gfs2_inode, i_trunc_list);
list_del_init(&ip->i_trunc_list);
}
spin_unlock(&sdp->sd_trunc_lock);
if (ip == NULL)
return;
gfs2_glock_finish_truncate(ip);
}
}
/**
* gfs2_quotad - Write cached quota changes into the quota file
* @sdp: Pointer to GFS2 superblock
*
*/
int gfs2_quotad(void *data)
{
struct gfs2_sbd *sdp = data;
struct gfs2_tune *tune = &sdp->sd_tune;
unsigned long statfs_timeo = 0;
unsigned long quotad_timeo = 0;
unsigned long t = 0;
DEFINE_WAIT(wait);
int empty;
while (!kthread_should_stop()) {
/* Update the master statfs file */
quotad_check_timeo(sdp, "statfs", gfs2_statfs_sync, t,
&statfs_timeo, &tune->gt_statfs_quantum);
/* Update quota file */
quotad_check_timeo(sdp, "sync", gfs2_quota_sync, t,
&quotad_timeo, &tune->gt_quota_quantum);
/* FIXME: This should be turned into a shrinker */
gfs2_quota_scan(sdp);
/* Check for & recover partially truncated inodes */
quotad_check_trunc_list(sdp);
if (freezing(current))
refrigerator();
t = min(quotad_timeo, statfs_timeo);
prepare_to_wait(&sdp->sd_quota_wait, &wait, TASK_UNINTERRUPTIBLE);
spin_lock(&sdp->sd_trunc_lock);
empty = list_empty(&sdp->sd_trunc_list);
spin_unlock(&sdp->sd_trunc_lock);
if (empty)
t -= schedule_timeout(t);
else
t = 0;
finish_wait(&sdp->sd_quota_wait, &wait);
}
return 0;
}

24
fs/gfs2/quota.h
View File

@ -15,22 +15,22 @@ struct gfs2_sbd;
#define NO_QUOTA_CHANGE ((u32)-1)
int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid);
void gfs2_quota_unhold(struct gfs2_inode *ip);
extern int gfs2_quota_hold(struct gfs2_inode *ip, u32 uid, u32 gid);
extern void gfs2_quota_unhold(struct gfs2_inode *ip);
int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid);
void gfs2_quota_unlock(struct gfs2_inode *ip);
extern int gfs2_quota_lock(struct gfs2_inode *ip, u32 uid, u32 gid);
extern void gfs2_quota_unlock(struct gfs2_inode *ip);
int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid);
void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
u32 uid, u32 gid);
extern int gfs2_quota_check(struct gfs2_inode *ip, u32 uid, u32 gid);
extern void gfs2_quota_change(struct gfs2_inode *ip, s64 change,
u32 uid, u32 gid);
int gfs2_quota_sync(struct gfs2_sbd *sdp);
int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id);
extern int gfs2_quota_sync(struct gfs2_sbd *sdp);
extern int gfs2_quota_refresh(struct gfs2_sbd *sdp, int user, u32 id);
int gfs2_quota_init(struct gfs2_sbd *sdp);
void gfs2_quota_scan(struct gfs2_sbd *sdp);
void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
extern int gfs2_quota_init(struct gfs2_sbd *sdp);
extern void gfs2_quota_cleanup(struct gfs2_sbd *sdp);
extern int gfs2_quotad(void *data);
static inline int gfs2_quota_lock_check(struct gfs2_inode *ip)
{

48
fs/gfs2/recovery.c
View File

@ -14,6 +14,8 @@
#include <linux/gfs2_ondisk.h>
#include <linux/crc32.h>
#include <linux/lm_interface.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
#include "gfs2.h"
#include "incore.h"
@ -583,13 +585,35 @@ int gfs2_recover_journal(struct gfs2_jdesc *jd)
return error;
}
static struct gfs2_jdesc *gfs2_jdesc_find_dirty(struct gfs2_sbd *sdp)
{
struct gfs2_jdesc *jd;
int found = 0;
spin_lock(&sdp->sd_jindex_spin);
list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
if (jd->jd_dirty) {
jd->jd_dirty = 0;
found = 1;
break;
}
}
spin_unlock(&sdp->sd_jindex_spin);
if (!found)
jd = NULL;
return jd;
}
/**
* gfs2_check_journals - Recover any dirty journals
* @sdp: the filesystem
*
*/
void gfs2_check_journals(struct gfs2_sbd *sdp)
static void gfs2_check_journals(struct gfs2_sbd *sdp)
{
struct gfs2_jdesc *jd;
@ -603,3 +627,25 @@ void gfs2_check_journals(struct gfs2_sbd *sdp)
}
}
/**
* gfs2_recoverd - Recover dead machine's journals
* @sdp: Pointer to GFS2 superblock
*
*/
int gfs2_recoverd(void *data)
{
struct gfs2_sbd *sdp = data;
unsigned long t;
while (!kthread_should_stop()) {
gfs2_check_journals(sdp);
t = gfs2_tune_get(sdp, gt_recoverd_secs) * HZ;
if (freezing(current))
refrigerator();
schedule_timeout_interruptible(t);
}
return 0;
}

14
fs/gfs2/recovery.h
View File

@ -18,17 +18,17 @@ static inline void gfs2_replay_incr_blk(struct gfs2_sbd *sdp, unsigned int *blk)
*blk = 0;
}
int gfs2_replay_read_block(struct gfs2_jdesc *jd, unsigned int blk,
extern int gfs2_replay_read_block(struct gfs2_jdesc *jd, unsigned int blk,
struct buffer_head **bh);
int gfs2_revoke_add(struct gfs2_sbd *sdp, u64 blkno, unsigned int where);
int gfs2_revoke_check(struct gfs2_sbd *sdp, u64 blkno, unsigned int where);
void gfs2_revoke_clean(struct gfs2_sbd *sdp);
extern int gfs2_revoke_add(struct gfs2_sbd *sdp, u64 blkno, unsigned int where);
extern int gfs2_revoke_check(struct gfs2_sbd *sdp, u64 blkno, unsigned int where);
extern void gfs2_revoke_clean(struct gfs2_sbd *sdp);
int gfs2_find_jhead(struct gfs2_jdesc *jd,
extern int gfs2_find_jhead(struct gfs2_jdesc *jd,
struct gfs2_log_header_host *head);
int gfs2_recover_journal(struct gfs2_jdesc *gfs2_jd);
void gfs2_check_journals(struct gfs2_sbd *sdp);
extern int gfs2_recover_journal(struct gfs2_jdesc *gfs2_jd);
extern int gfs2_recoverd(void *data);
#endif /* __RECOVERY_DOT_H__ */

58
fs/gfs2/rgrp.c
View File

@ -269,16 +269,14 @@ void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd)
bi->bi_len, x);
}
if (count[0] != rgd->rd_rg.rg_free) {
if (count[0] != rgd->rd_free) {
if (gfs2_consist_rgrpd(rgd))
fs_err(sdp, "free data mismatch: %u != %u\n",
count[0], rgd->rd_rg.rg_free);
count[0], rgd->rd_free);
return;
}
tmp = rgd->rd_data -
rgd->rd_rg.rg_free -
rgd->rd_rg.rg_dinodes;
tmp = rgd->rd_data - rgd->rd_free - rgd->rd_dinodes;
if (count[1] + count[2] != tmp) {
if (gfs2_consist_rgrpd(rgd))
fs_err(sdp, "used data mismatch: %u != %u\n",
@ -286,10 +284,10 @@ void gfs2_rgrp_verify(struct gfs2_rgrpd *rgd)
return;
}
if (count[3] != rgd->rd_rg.rg_dinodes) {
if (count[3] != rgd->rd_dinodes) {
if (gfs2_consist_rgrpd(rgd))
fs_err(sdp, "used metadata mismatch: %u != %u\n",
count[3], rgd->rd_rg.rg_dinodes);
count[3], rgd->rd_dinodes);
return;
}
@ -501,7 +499,7 @@ u64 gfs2_ri_total(struct gfs2_sbd *sdp)
for (rgrps = 0;; rgrps++) {
loff_t pos = rgrps * sizeof(struct gfs2_rindex);
if (pos + sizeof(struct gfs2_rindex) >= ip->i_di.di_size)
if (pos + sizeof(struct gfs2_rindex) >= ip->i_disksize)
break;
error = gfs2_internal_read(ip, &ra_state, buf, &pos,
sizeof(struct gfs2_rindex));
@ -590,7 +588,7 @@ static int gfs2_ri_update(struct gfs2_inode *ip)
struct gfs2_sbd *sdp = GFS2_SB(&ip->i_inode);
struct inode *inode = &ip->i_inode;
struct file_ra_state ra_state;
u64 rgrp_count = ip->i_di.di_size;
u64 rgrp_count = ip->i_disksize;
int error;
if (do_div(rgrp_count, sizeof(struct gfs2_rindex))) {
@ -634,7 +632,7 @@ static int gfs2_ri_update_special(struct gfs2_inode *ip)
for (sdp->sd_rgrps = 0;; sdp->sd_rgrps++) {
/* Ignore partials */
if ((sdp->sd_rgrps + 1) * sizeof(struct gfs2_rindex) >
ip->i_di.di_size)
ip->i_disksize)
break;
error = read_rindex_entry(ip, &ra_state);
if (error) {
@ -692,7 +690,6 @@ int gfs2_rindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ri_gh)
static void gfs2_rgrp_in(struct gfs2_rgrpd *rgd, const void *buf)
{
const struct gfs2_rgrp *str = buf;
struct gfs2_rgrp_host *rg = &rgd->rd_rg;
u32 rg_flags;
rg_flags = be32_to_cpu(str->rg_flags);
@ -700,24 +697,23 @@ static void gfs2_rgrp_in(struct gfs2_rgrpd *rgd, const void *buf)
rgd->rd_flags |= GFS2_RDF_NOALLOC;
else
rgd->rd_flags &= ~GFS2_RDF_NOALLOC;
rg->rg_free = be32_to_cpu(str->rg_free);
rg->rg_dinodes = be32_to_cpu(str->rg_dinodes);
rg->rg_igeneration = be64_to_cpu(str->rg_igeneration);
rgd->rd_free = be32_to_cpu(str->rg_free);
rgd->rd_dinodes = be32_to_cpu(str->rg_dinodes);
rgd->rd_igeneration = be64_to_cpu(str->rg_igeneration);
}
static void gfs2_rgrp_out(struct gfs2_rgrpd *rgd, void *buf)
{
struct gfs2_rgrp *str = buf;
struct gfs2_rgrp_host *rg = &rgd->rd_rg;
u32 rg_flags = 0;
if (rgd->rd_flags & GFS2_RDF_NOALLOC)
rg_flags |= GFS2_RGF_NOALLOC;
str->rg_flags = cpu_to_be32(rg_flags);
str->rg_free = cpu_to_be32(rg->rg_free);
str->rg_dinodes = cpu_to_be32(rg->rg_dinodes);
str->rg_free = cpu_to_be32(rgd->rd_free);
str->rg_dinodes = cpu_to_be32(rgd->rd_dinodes);
str->__pad = cpu_to_be32(0);
str->rg_igeneration = cpu_to_be64(rg->rg_igeneration);
str->rg_igeneration = cpu_to_be64(rgd->rd_igeneration);
memset(&str->rg_reserved, 0, sizeof(str->rg_reserved));
}
@ -776,7 +772,7 @@ int gfs2_rgrp_bh_get(struct gfs2_rgrpd *rgd)
}
spin_lock(&sdp->sd_rindex_spin);
rgd->rd_free_clone = rgd->rd_rg.rg_free;
rgd->rd_free_clone = rgd->rd_free;
rgd->rd_bh_count++;
spin_unlock(&sdp->sd_rindex_spin);
@ -850,7 +846,7 @@ void gfs2_rgrp_repolish_clones(struct gfs2_rgrpd *rgd)
}
spin_lock(&sdp->sd_rindex_spin);
rgd->rd_free_clone = rgd->rd_rg.rg_free;
rgd->rd_free_clone = rgd->rd_free;
spin_unlock(&sdp->sd_rindex_spin);
}
@ -1403,8 +1399,8 @@ u64 gfs2_alloc_block(struct gfs2_inode *ip, unsigned int *n)
block = rgd->rd_data0 + blk;
ip->i_goal = block;
gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free >= *n);
rgd->rd_rg.rg_free -= *n;
gfs2_assert_withdraw(sdp, rgd->rd_free >= *n);
rgd->rd_free -= *n;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
@ -1445,10 +1441,10 @@ u64 gfs2_alloc_di(struct gfs2_inode *dip, u64 *generation)
block = rgd->rd_data0 + blk;
gfs2_assert_withdraw(sdp, rgd->rd_rg.rg_free);
rgd->rd_rg.rg_free--;
rgd->rd_rg.rg_dinodes++;
*generation = rgd->rd_rg.rg_igeneration++;
gfs2_assert_withdraw(sdp, rgd->rd_free);
rgd->rd_free--;
rgd->rd_dinodes++;
*generation = rgd->rd_igeneration++;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
@ -1481,7 +1477,7 @@ void gfs2_free_data(struct gfs2_inode *ip, u64 bstart, u32 blen)
if (!rgd)
return;
rgd->rd_rg.rg_free += blen;
rgd->rd_free += blen;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
@ -1509,7 +1505,7 @@ void gfs2_free_meta(struct gfs2_inode *ip, u64 bstart, u32 blen)
if (!rgd)
return;
rgd->rd_rg.rg_free += blen;
rgd->rd_free += blen;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);
@ -1546,10 +1542,10 @@ static void gfs2_free_uninit_di(struct gfs2_rgrpd *rgd, u64 blkno)
return;
gfs2_assert_withdraw(sdp, rgd == tmp_rgd);
if (!rgd->rd_rg.rg_dinodes)
if (!rgd->rd_dinodes)
gfs2_consist_rgrpd(rgd);
rgd->rd_rg.rg_dinodes--;
rgd->rd_rg.rg_free++;
rgd->rd_dinodes--;
rgd->rd_free++;
gfs2_trans_add_bh(rgd->rd_gl, rgd->rd_bits[0].bi_bh, 1);
gfs2_rgrp_out(rgd, rgd->rd_bits[0].bi_bh->b_data);

246
fs/gfs2/super.c
View File

@ -33,76 +33,6 @@
#include "trans.h"
#include "util.h"
/**
* gfs2_jindex_hold - Grab a lock on the jindex
* @sdp: The GFS2 superblock
* @ji_gh: the holder for the jindex glock
*
* This is very similar to the gfs2_rindex_hold() function, except that
* in general we hold the jindex lock for longer periods of time and
* we grab it far less frequently (in general) then the rgrp lock.
*
* Returns: errno
*/
int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh)
{
struct gfs2_inode *dip = GFS2_I(sdp->sd_jindex);
struct qstr name;
char buf[20];
struct gfs2_jdesc *jd;
int error;
name.name = buf;
mutex_lock(&sdp->sd_jindex_mutex);
for (;;) {
error = gfs2_glock_nq_init(dip->i_gl, LM_ST_SHARED, 0, ji_gh);
if (error)
break;
name.len = sprintf(buf, "journal%u", sdp->sd_journals);
name.hash = gfs2_disk_hash(name.name, name.len);
error = gfs2_dir_check(sdp->sd_jindex, &name, NULL);
if (error == -ENOENT) {
error = 0;
break;
}
gfs2_glock_dq_uninit(ji_gh);
if (error)
break;
error = -ENOMEM;
jd = kzalloc(sizeof(struct gfs2_jdesc), GFP_KERNEL);
if (!jd)
break;
INIT_LIST_HEAD(&jd->extent_list);
jd->jd_inode = gfs2_lookupi(sdp->sd_jindex, &name, 1);
if (!jd->jd_inode || IS_ERR(jd->jd_inode)) {
if (!jd->jd_inode)
error = -ENOENT;
else
error = PTR_ERR(jd->jd_inode);
kfree(jd);
break;
}
spin_lock(&sdp->sd_jindex_spin);
jd->jd_jid = sdp->sd_journals++;
list_add_tail(&jd->jd_list, &sdp->sd_jindex_list);
spin_unlock(&sdp->sd_jindex_spin);
}
mutex_unlock(&sdp->sd_jindex_mutex);
return error;
}
/**
* gfs2_jindex_free - Clear all the journal index information
* @sdp: The GFS2 superblock
@ -166,39 +96,6 @@ struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid)
return jd;
}
void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid)
{
struct gfs2_jdesc *jd;
spin_lock(&sdp->sd_jindex_spin);
jd = jdesc_find_i(&sdp->sd_jindex_list, jid);
if (jd)
jd->jd_dirty = 1;
spin_unlock(&sdp->sd_jindex_spin);
}
struct gfs2_jdesc *gfs2_jdesc_find_dirty(struct gfs2_sbd *sdp)
{
struct gfs2_jdesc *jd;
int found = 0;
spin_lock(&sdp->sd_jindex_spin);
list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
if (jd->jd_dirty) {
jd->jd_dirty = 0;
found = 1;
break;
}
}
spin_unlock(&sdp->sd_jindex_spin);
if (!found)
jd = NULL;
return jd;
}
int gfs2_jdesc_check(struct gfs2_jdesc *jd)
{
struct gfs2_inode *ip = GFS2_I(jd->jd_inode);
@ -206,14 +103,14 @@ int gfs2_jdesc_check(struct gfs2_jdesc *jd)
int ar;
int error;
if (ip->i_di.di_size < (8 << 20) || ip->i_di.di_size > (1 << 30) ||
(ip->i_di.di_size & (sdp->sd_sb.sb_bsize - 1))) {
if (ip->i_disksize < (8 << 20) || ip->i_disksize > (1 << 30) ||
(ip->i_disksize & (sdp->sd_sb.sb_bsize - 1))) {
gfs2_consist_inode(ip);
return -EIO;
}
jd->jd_blocks = ip->i_di.di_size >> sdp->sd_sb.sb_bsize_shift;
jd->jd_blocks = ip->i_disksize >> sdp->sd_sb.sb_bsize_shift;
error = gfs2_write_alloc_required(ip, 0, ip->i_di.di_size, &ar);
error = gfs2_write_alloc_required(ip, 0, ip->i_disksize, &ar);
if (!error && ar) {
gfs2_consist_inode(ip);
error = -EIO;
@ -423,137 +320,6 @@ int gfs2_statfs_sync(struct gfs2_sbd *sdp)
return error;
}
/**
* gfs2_statfs_i - Do a statfs
* @sdp: the filesystem
* @sg: the sg structure
*
* Returns: errno
*/
int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
{
struct gfs2_statfs_change_host *m_sc = &sdp->sd_statfs_master;
struct gfs2_statfs_change_host *l_sc = &sdp->sd_statfs_local;
spin_lock(&sdp->sd_statfs_spin);
*sc = *m_sc;
sc->sc_total += l_sc->sc_total;
sc->sc_free += l_sc->sc_free;
sc->sc_dinodes += l_sc->sc_dinodes;
spin_unlock(&sdp->sd_statfs_spin);
if (sc->sc_free < 0)
sc->sc_free = 0;
if (sc->sc_free > sc->sc_total)
sc->sc_free = sc->sc_total;
if (sc->sc_dinodes < 0)
sc->sc_dinodes = 0;
return 0;
}
/**
* statfs_fill - fill in the sg for a given RG
* @rgd: the RG
* @sc: the sc structure
*
* Returns: 0 on success, -ESTALE if the LVB is invalid
*/
static int statfs_slow_fill(struct gfs2_rgrpd *rgd,
struct gfs2_statfs_change_host *sc)
{
gfs2_rgrp_verify(rgd);
sc->sc_total += rgd->rd_data;
sc->sc_free += rgd->rd_rg.rg_free;
sc->sc_dinodes += rgd->rd_rg.rg_dinodes;
return 0;
}
/**
* gfs2_statfs_slow - Stat a filesystem using asynchronous locking
* @sdp: the filesystem
* @sc: the sc info that will be returned
*
* Any error (other than a signal) will cause this routine to fall back
* to the synchronous version.
*
* FIXME: This really shouldn't busy wait like this.
*
* Returns: errno
*/
int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc)
{
struct gfs2_holder ri_gh;
struct gfs2_rgrpd *rgd_next;
struct gfs2_holder *gha, *gh;
unsigned int slots = 64;
unsigned int x;
int done;
int error = 0, err;
memset(sc, 0, sizeof(struct gfs2_statfs_change_host));
gha = kcalloc(slots, sizeof(struct gfs2_holder), GFP_KERNEL);
if (!gha)
return -ENOMEM;
error = gfs2_rindex_hold(sdp, &ri_gh);
if (error)
goto out;
rgd_next = gfs2_rgrpd_get_first(sdp);
for (;;) {
done = 1;
for (x = 0; x < slots; x++) {
gh = gha + x;
if (gh->gh_gl && gfs2_glock_poll(gh)) {
err = gfs2_glock_wait(gh);
if (err) {
gfs2_holder_uninit(gh);
error = err;
} else {
if (!error)
error = statfs_slow_fill(
gh->gh_gl->gl_object, sc);
gfs2_glock_dq_uninit(gh);
}
}
if (gh->gh_gl)
done = 0;
else if (rgd_next && !error) {
error = gfs2_glock_nq_init(rgd_next->rd_gl,
LM_ST_SHARED,
GL_ASYNC,
gh);
rgd_next = gfs2_rgrpd_get_next(rgd_next);
done = 0;
}
if (signal_pending(current))
error = -ERESTARTSYS;
}
if (done)
break;
yield();
}
gfs2_glock_dq_uninit(&ri_gh);
out:
kfree(gha);
return error;
}
struct lfcc {
struct list_head list;
struct gfs2_holder gh;
@ -580,10 +346,6 @@ static int gfs2_lock_fs_check_clean(struct gfs2_sbd *sdp,
struct gfs2_log_header_host lh;
int error;
error = gfs2_jindex_hold(sdp, &ji_gh);
if (error)
return error;
list_for_each_entry(jd, &sdp->sd_jindex_list, jd_list) {
lfcc = kmalloc(sizeof(struct lfcc), GFP_KERNEL);
if (!lfcc) {

13
fs/gfs2/super.h
View File

@ -10,6 +10,8 @@
#ifndef __SUPER_DOT_H__
#define __SUPER_DOT_H__
#include <linux/fs.h>
#include <linux/dcache.h>
#include "incore.h"
void gfs2_lm_unmount(struct gfs2_sbd *sdp);
@ -23,12 +25,9 @@ static inline unsigned int gfs2_jindex_size(struct gfs2_sbd *sdp)
return x;
}
int gfs2_jindex_hold(struct gfs2_sbd *sdp, struct gfs2_holder *ji_gh);
void gfs2_jindex_free(struct gfs2_sbd *sdp);
struct gfs2_jdesc *gfs2_jdesc_find(struct gfs2_sbd *sdp, unsigned int jid);
void gfs2_jdesc_make_dirty(struct gfs2_sbd *sdp, unsigned int jid);
struct gfs2_jdesc *gfs2_jdesc_find_dirty(struct gfs2_sbd *sdp);
int gfs2_jdesc_check(struct gfs2_jdesc *jd);
int gfs2_lookup_in_master_dir(struct gfs2_sbd *sdp, char *filename,
@ -40,11 +39,15 @@ int gfs2_statfs_init(struct gfs2_sbd *sdp);
void gfs2_statfs_change(struct gfs2_sbd *sdp,
s64 total, s64 free, s64 dinodes);
int gfs2_statfs_sync(struct gfs2_sbd *sdp);
int gfs2_statfs_i(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc);
int gfs2_statfs_slow(struct gfs2_sbd *sdp, struct gfs2_statfs_change_host *sc);
int gfs2_freeze_fs(struct gfs2_sbd *sdp);
void gfs2_unfreeze_fs(struct gfs2_sbd *sdp);
extern struct file_system_type gfs2_fs_type;
extern struct file_system_type gfs2meta_fs_type;
extern const struct export_operations gfs2_export_ops;
extern const struct super_operations gfs2_super_ops;
extern struct dentry_operations gfs2_dops;
#endif /* __SUPER_DOT_H__ */

66
fs/gfs2/sys.c
View File

@ -26,9 +26,6 @@
#include "quota.h"
#include "util.h"
char *gfs2_sys_margs;
spinlock_t gfs2_sys_margs_lock;
static ssize_t id_show(struct gfs2_sbd *sdp, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%u:%u\n",
@ -263,7 +260,6 @@ ARGS_ATTR(localcaching, "%d\n");
ARGS_ATTR(localflocks, "%d\n");
ARGS_ATTR(debug, "%d\n");
ARGS_ATTR(upgrade, "%d\n");
ARGS_ATTR(num_glockd, "%u\n");
ARGS_ATTR(posix_acl, "%d\n");
ARGS_ATTR(quota, "%u\n");
ARGS_ATTR(suiddir, "%d\n");
@ -279,7 +275,6 @@ static struct attribute *args_attrs[] = {
&args_attr_localflocks.attr,
&args_attr_debug.attr,
&args_attr_upgrade.attr,
&args_attr_num_glockd.attr,
&args_attr_posix_acl.attr,
&args_attr_quota.attr,
&args_attr_suiddir.attr,
@ -287,30 +282,6 @@ static struct attribute *args_attrs[] = {
NULL,
};
/*
* display counters from superblock
*/
struct counters_attr {
struct attribute attr;
ssize_t (*show)(struct gfs2_sbd *, char *);
};
#define COUNTERS_ATTR(name, fmt) \
static ssize_t name##_show(struct gfs2_sbd *sdp, char *buf) \
{ \
return snprintf(buf, PAGE_SIZE, fmt, \
(unsigned int)atomic_read(&sdp->sd_##name)); \
} \
static struct counters_attr counters_attr_##name = __ATTR_RO(name)
COUNTERS_ATTR(reclaimed, "%u\n");
static struct attribute *counters_attrs[] = {
&counters_attr_reclaimed.attr,
NULL,
};
/*
* get and set struct gfs2_tune fields
*/
@ -393,7 +364,6 @@ static ssize_t name##_store(struct gfs2_sbd *sdp, const char *buf, size_t len)\
} \
TUNE_ATTR_2(name, name##_store)
TUNE_ATTR(demote_secs, 0);
TUNE_ATTR(incore_log_blocks, 0);
TUNE_ATTR(log_flush_secs, 0);
TUNE_ATTR(quota_warn_period, 0);
@ -408,11 +378,9 @@ TUNE_ATTR(stall_secs, 1);
TUNE_ATTR(statfs_quantum, 1);
TUNE_ATTR_DAEMON(recoverd_secs, recoverd_process);
TUNE_ATTR_DAEMON(logd_secs, logd_process);
TUNE_ATTR_DAEMON(quotad_secs, quotad_process);
TUNE_ATTR_3(quota_scale, quota_scale_show, quota_scale_store);
static struct attribute *tune_attrs[] = {
&tune_attr_demote_secs.attr,
&tune_attr_incore_log_blocks.attr,
&tune_attr_log_flush_secs.attr,
&tune_attr_quota_warn_period.attr,
@ -426,7 +394,6 @@ static struct attribute *tune_attrs[] = {
&tune_attr_statfs_quantum.attr,
&tune_attr_recoverd_secs.attr,
&tune_attr_logd_secs.attr,
&tune_attr_quotad_secs.attr,
&tune_attr_quota_scale.attr,
&tune_attr_new_files_jdata.attr,
NULL,
@ -437,11 +404,6 @@ static struct attribute_group lockstruct_group = {
.attrs = lockstruct_attrs,
};
static struct attribute_group counters_group = {
.name = "counters",
.attrs = counters_attrs,
};
static struct attribute_group args_group = {
.name = "args",
.attrs = args_attrs,
@ -466,13 +428,9 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
if (error)
goto fail_reg;
error = sysfs_create_group(&sdp->sd_kobj, &counters_group);
if (error)
goto fail_lockstruct;
error = sysfs_create_group(&sdp->sd_kobj, &args_group);
if (error)
goto fail_counters;
goto fail_lockstruct;
error = sysfs_create_group(&sdp->sd_kobj, &tune_group);
if (error)
@ -483,8 +441,6 @@ int gfs2_sys_fs_add(struct gfs2_sbd *sdp)
fail_args:
sysfs_remove_group(&sdp->sd_kobj, &args_group);
fail_counters:
sysfs_remove_group(&sdp->sd_kobj, &counters_group);
fail_lockstruct:
sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
fail_reg:
@ -498,16 +454,27 @@ void gfs2_sys_fs_del(struct gfs2_sbd *sdp)
{
sysfs_remove_group(&sdp->sd_kobj, &tune_group);
sysfs_remove_group(&sdp->sd_kobj, &args_group);
sysfs_remove_group(&sdp->sd_kobj, &counters_group);
sysfs_remove_group(&sdp->sd_kobj, &lockstruct_group);
kobject_put(&sdp->sd_kobj);
}
static int gfs2_uevent(struct kset *kset, struct kobject *kobj,
struct kobj_uevent_env *env)
{
struct gfs2_sbd *sdp = container_of(kobj, struct gfs2_sbd, sd_kobj);
add_uevent_var(env, "LOCKTABLE=%s", sdp->sd_table_name);
add_uevent_var(env, "LOCKPROTO=%s", sdp->sd_proto_name);
return 0;
}
static struct kset_uevent_ops gfs2_uevent_ops = {
.uevent = gfs2_uevent,
};
int gfs2_sys_init(void)
{
gfs2_sys_margs = NULL;
spin_lock_init(&gfs2_sys_margs_lock);
gfs2_kset = kset_create_and_add("gfs2", NULL, fs_kobj);
gfs2_kset = kset_create_and_add("gfs2", &gfs2_uevent_ops, fs_kobj);
if (!gfs2_kset)
return -ENOMEM;
return 0;
@ -515,7 +482,6 @@ int gfs2_sys_init(void)
void gfs2_sys_uninit(void)
{
kfree(gfs2_sys_margs);
kset_unregister(gfs2_kset);
}

4
fs/gfs2/sys.h
View File

@ -13,10 +13,6 @@
#include <linux/spinlock.h>
struct gfs2_sbd;
/* Allow args to be passed to GFS2 when using an initial ram disk */
extern char *gfs2_sys_margs;
extern spinlock_t gfs2_sys_margs_lock;
int gfs2_sys_fs_add(struct gfs2_sbd *sdp);
void gfs2_sys_fs_del(struct gfs2_sbd *sdp);

1
fs/gfs2/util.c
View File

@ -25,6 +25,7 @@ struct kmem_cache *gfs2_glock_cachep __read_mostly;
struct kmem_cache *gfs2_inode_cachep __read_mostly;
struct kmem_cache *gfs2_bufdata_cachep __read_mostly;
struct kmem_cache *gfs2_rgrpd_cachep __read_mostly;
struct kmem_cache *gfs2_quotad_cachep __read_mostly;
void gfs2_assert_i(struct gfs2_sbd *sdp)
{

1
fs/gfs2/util.h
View File

@ -148,6 +148,7 @@ extern struct kmem_cache *gfs2_glock_cachep;
extern struct kmem_cache *gfs2_inode_cachep;
extern struct kmem_cache *gfs2_bufdata_cachep;
extern struct kmem_cache *gfs2_rgrpd_cachep;
extern struct kmem_cache *gfs2_quotad_cachep;
static inline unsigned int gfs2_tune_get_i(struct gfs2_tune *gt,
unsigned int *p)

44
fs/ioctl.c
View File

@ -231,7 +231,8 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
#define blk_to_logical(inode, blk) (blk << (inode)->i_blkbits)
#define logical_to_blk(inode, offset) (offset >> (inode)->i_blkbits);
/*
/**
* __generic_block_fiemap - FIEMAP for block based inodes (no locking)
* @inode - the inode to map
* @arg - the pointer to userspace where we copy everything to
* @get_block - the fs's get_block function
@ -242,11 +243,15 @@ static int ioctl_fiemap(struct file *filp, unsigned long arg)
*
* If it is possible to have data blocks beyond a hole past @inode->i_size, then
* please do not use this function, it will stop at the first unmapped block
* beyond i_size
* beyond i_size.
*
* If you use this function directly, you need to do your own locking. Use
* generic_block_fiemap if you want the locking done for you.
*/
int generic_block_fiemap(struct inode *inode,
struct fiemap_extent_info *fieinfo, u64 start,
u64 len, get_block_t *get_block)
int __generic_block_fiemap(struct inode *inode,
struct fiemap_extent_info *fieinfo, u64 start,
u64 len, get_block_t *get_block)
{
struct buffer_head tmp;
unsigned int start_blk;
@ -260,9 +265,6 @@ int generic_block_fiemap(struct inode *inode,
start_blk = logical_to_blk(inode, start);
/* guard against change */
mutex_lock(&inode->i_mutex);
length = (long long)min_t(u64, len, i_size_read(inode));
map_len = length;
@ -334,14 +336,36 @@ int generic_block_fiemap(struct inode *inode,
cond_resched();
} while (1);
mutex_unlock(&inode->i_mutex);
/* if ret is 1 then we just hit the end of the extent array */
if (ret == 1)
ret = 0;
return ret;
}
EXPORT_SYMBOL(__generic_block_fiemap);
/**
* generic_block_fiemap - FIEMAP for block based inodes
* @inode: The inode to map
* @fieinfo: The mapping information
* @start: The initial block to map
* @len: The length of the extect to attempt to map
* @get_block: The block mapping function for the fs
*
* Calls __generic_block_fiemap to map the inode, after taking
* the inode's mutex lock.
*/
int generic_block_fiemap(struct inode *inode,
struct fiemap_extent_info *fieinfo, u64 start,
u64 len, get_block_t *get_block)
{
int ret;
mutex_lock(&inode->i_mutex);
ret = __generic_block_fiemap(inode, fieinfo, start, len, get_block);
mutex_unlock(&inode->i_mutex);
return ret;
}
EXPORT_SYMBOL(generic_block_fiemap);
#endif /* CONFIG_BLOCK */

3
include/linux/fs.h
View File

@ -2059,6 +2059,9 @@ extern int vfs_fstat(unsigned int, struct kstat *);
extern int do_vfs_ioctl(struct file *filp, unsigned int fd, unsigned int cmd,
unsigned long arg);
extern int __generic_block_fiemap(struct inode *inode,
struct fiemap_extent_info *fieinfo, u64 start,
u64 len, get_block_t *get_block);
extern int generic_block_fiemap(struct inode *inode,
struct fiemap_extent_info *fieinfo, u64 start,
u64 len, get_block_t *get_block);