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[PATCH] ufs2 write: block allocation update 

Patch adds ability to work with 64bit metadata, this made by replacing work
with 32bit pointers by inline functions.

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Evgeniy Dushistov 2007-02-12 00:54:32 -08:00 committed by Linus Torvalds
parent 3313e29267
commit 54fb996ac1
6 changed files with 320 additions and 190 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

197
fs/ufs/balloc.c
View File

@ -4,6 +4,8 @@
* Copyright (C) 1998
* Daniel Pirkl <daniel.pirkl@email.cz>
* Charles University, Faculty of Mathematics and Physics
*
* UFS2 write support Evgeniy Dushistov <dushistov@mail.ru>, 2007
*/
#include <linux/fs.h>
@ -21,38 +23,42 @@
#include "swab.h"
#include "util.h"
static unsigned ufs_add_fragments (struct inode *, unsigned, unsigned, unsigned, int *);
static unsigned ufs_alloc_fragments (struct inode *, unsigned, unsigned, unsigned, int *);
static unsigned ufs_alloccg_block (struct inode *, struct ufs_cg_private_info *, unsigned, int *);
static unsigned ufs_bitmap_search (struct super_block *, struct ufs_cg_private_info *, unsigned, unsigned);
#define INVBLOCK ((u64)-1L)
static u64 ufs_add_fragments(struct inode *, u64, unsigned, unsigned, int *);
static u64 ufs_alloc_fragments(struct inode *, unsigned, u64, unsigned, int *);
static u64 ufs_alloccg_block(struct inode *, struct ufs_cg_private_info *, u64, int *);
static u64 ufs_bitmap_search (struct super_block *, struct ufs_cg_private_info *, u64, unsigned);
static unsigned char ufs_fragtable_8fpb[], ufs_fragtable_other[];
static void ufs_clusteracct(struct super_block *, struct ufs_cg_private_info *, unsigned, int);
/*
* Free 'count' fragments from fragment number 'fragment'
*/
void ufs_free_fragments(struct inode *inode, unsigned fragment, unsigned count)
void ufs_free_fragments(struct inode *inode, u64 fragment, unsigned count)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
struct ufs_cg_private_info * ucpi;
struct ufs_cylinder_group * ucg;
unsigned cgno, bit, end_bit, bbase, blkmap, i, blkno, cylno;
unsigned cgno, bit, end_bit, bbase, blkmap, i;
u64 blkno;
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
usb1 = ubh_get_usb_first(uspi);
UFSD("ENTER, fragment %u, count %u\n", fragment, count);
UFSD("ENTER, fragment %llu, count %u\n",
(unsigned long long)fragment, count);
if (ufs_fragnum(fragment) + count > uspi->s_fpg)
ufs_error (sb, "ufs_free_fragments", "internal error");
lock_super(sb);
cgno = ufs_dtog(fragment);
bit = ufs_dtogd(fragment);
cgno = ufs_dtog(uspi, fragment);
bit = ufs_dtogd(uspi, fragment);
if (cgno >= uspi->s_ncg) {
ufs_panic (sb, "ufs_free_fragments", "freeing blocks are outside device");
goto failed;
@ -101,9 +107,13 @@ void ufs_free_fragments(struct inode *inode, unsigned fragment, unsigned count)
fs32_add(sb, &ucg->cg_cs.cs_nbfree, 1);
uspi->cs_total.cs_nbfree++;
fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nbfree, 1);
cylno = ufs_cbtocylno (bbase);
fs16_add(sb, &ubh_cg_blks(ucpi, cylno, ufs_cbtorpos(bbase)), 1);
fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1);
if (uspi->fs_magic != UFS2_MAGIC) {
unsigned cylno = ufs_cbtocylno (bbase);
fs16_add(sb, &ubh_cg_blks(ucpi, cylno,
ufs_cbtorpos(bbase)), 1);
fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1);
}
}
ubh_mark_buffer_dirty (USPI_UBH(uspi));
@ -127,24 +137,27 @@ void ufs_free_fragments(struct inode *inode, unsigned fragment, unsigned count)
/*
* Free 'count' fragments from fragment number 'fragment' (free whole blocks)
*/
void ufs_free_blocks(struct inode *inode, unsigned fragment, unsigned count)
void ufs_free_blocks(struct inode *inode, u64 fragment, unsigned count)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
struct ufs_cg_private_info * ucpi;
struct ufs_cylinder_group * ucg;
unsigned overflow, cgno, bit, end_bit, blkno, i, cylno;
unsigned overflow, cgno, bit, end_bit, i;
u64 blkno;
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
usb1 = ubh_get_usb_first(uspi);
UFSD("ENTER, fragment %u, count %u\n", fragment, count);
UFSD("ENTER, fragment %llu, count %u\n",
(unsigned long long)fragment, count);
if ((fragment & uspi->s_fpbmask) || (count & uspi->s_fpbmask)) {
ufs_error (sb, "ufs_free_blocks", "internal error, "
"fragment %u, count %u\n", fragment, count);
"fragment %llu, count %u\n",
(unsigned long long)fragment, count);
goto failed;
}
@ -152,8 +165,8 @@ void ufs_free_blocks(struct inode *inode, unsigned fragment, unsigned count)
do_more:
overflow = 0;
cgno = ufs_dtog (fragment);
bit = ufs_dtogd (fragment);
cgno = ufs_dtog(uspi, fragment);
bit = ufs_dtogd(uspi, fragment);
if (cgno >= uspi->s_ncg) {
ufs_panic (sb, "ufs_free_blocks", "freeing blocks are outside device");
goto failed_unlock;
@ -187,9 +200,14 @@ void ufs_free_blocks(struct inode *inode, unsigned fragment, unsigned count)
fs32_add(sb, &ucg->cg_cs.cs_nbfree, 1);
uspi->cs_total.cs_nbfree++;
fs32_add(sb, &UFS_SB(sb)->fs_cs(cgno).cs_nbfree, 1);
cylno = ufs_cbtocylno(i);
fs16_add(sb, &ubh_cg_blks(ucpi, cylno, ufs_cbtorpos(i)), 1);
fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1);
if (uspi->fs_magic != UFS2_MAGIC) {
unsigned cylno = ufs_cbtocylno(i);
fs16_add(sb, &ubh_cg_blks(ucpi, cylno,
ufs_cbtorpos(i)), 1);
fs32_add(sb, &ubh_cg_blktot(ucpi, cylno), 1);
}
}
ubh_mark_buffer_dirty (USPI_UBH(uspi));
@ -308,15 +326,19 @@ static void ufs_clear_frags(struct inode *inode, sector_t beg, unsigned int n,
}
}
unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment,
unsigned goal, unsigned count, int * err, struct page *locked_page)
u64 ufs_new_fragments(struct inode *inode, void *p, u64 fragment,
u64 goal, unsigned count, int *err,
struct page *locked_page)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
unsigned cgno, oldcount, newcount, tmp, request, result;
unsigned cgno, oldcount, newcount;
u64 tmp, request, result;
UFSD("ENTER, ino %lu, fragment %u, goal %u, count %u\n", inode->i_ino, fragment, goal, count);
UFSD("ENTER, ino %lu, fragment %llu, goal %llu, count %u\n",
inode->i_ino, (unsigned long long)fragment,
(unsigned long long)goal, count);
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
@ -324,11 +346,12 @@ unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment,
*err = -ENOSPC;
lock_super (sb);
tmp = fs32_to_cpu(sb, *p);
tmp = ufs_data_ptr_to_cpu(sb, p);
if (count + ufs_fragnum(fragment) > uspi->s_fpb) {
ufs_warning (sb, "ufs_new_fragments", "internal warning"
" fragment %u, count %u", fragment, count);
ufs_warning(sb, "ufs_new_fragments", "internal warning"
" fragment %llu, count %u",
(unsigned long long)fragment, count);
count = uspi->s_fpb - ufs_fragnum(fragment);
}
oldcount = ufs_fragnum (fragment);
@ -339,10 +362,12 @@ unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment,
*/
if (oldcount) {
if (!tmp) {
ufs_error (sb, "ufs_new_fragments", "internal error, "
"fragment %u, tmp %u\n", fragment, tmp);
unlock_super (sb);
return (unsigned)-1;
ufs_error(sb, "ufs_new_fragments", "internal error, "
"fragment %llu, tmp %llu\n",
(unsigned long long)fragment,
(unsigned long long)tmp);
unlock_super(sb);
return INVBLOCK;
}
if (fragment < UFS_I(inode)->i_lastfrag) {
UFSD("EXIT (ALREADY ALLOCATED)\n");
@ -372,7 +397,7 @@ unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment,
if (goal == 0)
cgno = ufs_inotocg (inode->i_ino);
else
cgno = ufs_dtog (goal);
cgno = ufs_dtog(uspi, goal);
/*
* allocate new fragment
@ -380,14 +405,16 @@ unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment,
if (oldcount == 0) {
result = ufs_alloc_fragments (inode, cgno, goal, count, err);
if (result) {
*p = cpu_to_fs32(sb, result);
ufs_cpu_to_data_ptr(sb, p, result);
*err = 0;
UFS_I(inode)->i_lastfrag = max_t(u32, UFS_I(inode)->i_lastfrag, fragment + count);
ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
locked_page != NULL);
UFS_I(inode)->i_lastfrag =
max_t(u32, UFS_I(inode)->i_lastfrag,
fragment + count);
ufs_clear_frags(inode, result + oldcount,
newcount - oldcount, locked_page != NULL);
}
unlock_super(sb);
UFSD("EXIT, result %u\n", result);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@ -401,7 +428,7 @@ unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment,
ufs_clear_frags(inode, result + oldcount, newcount - oldcount,
locked_page != NULL);
unlock_super(sb);
UFSD("EXIT, result %u\n", result);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@ -433,15 +460,14 @@ unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment,
locked_page != NULL);
ufs_change_blocknr(inode, fragment - oldcount, oldcount, tmp,
result, locked_page);
*p = cpu_to_fs32(sb, result);
ufs_cpu_to_data_ptr(sb, p, result);
*err = 0;
UFS_I(inode)->i_lastfrag = max_t(u32, UFS_I(inode)->i_lastfrag, fragment + count);
unlock_super(sb);
if (newcount < request)
ufs_free_fragments (inode, result + newcount, request - newcount);
ufs_free_fragments (inode, tmp, oldcount);
UFSD("EXIT, result %u\n", result);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@ -450,9 +476,8 @@ unsigned ufs_new_fragments(struct inode * inode, __fs32 * p, unsigned fragment,
return 0;
}
static unsigned
ufs_add_fragments (struct inode * inode, unsigned fragment,
unsigned oldcount, unsigned newcount, int * err)
static u64 ufs_add_fragments(struct inode *inode, u64 fragment,
unsigned oldcount, unsigned newcount, int *err)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
@ -461,14 +486,15 @@ ufs_add_fragments (struct inode * inode, unsigned fragment,
struct ufs_cylinder_group * ucg;
unsigned cgno, fragno, fragoff, count, fragsize, i;
UFSD("ENTER, fragment %u, oldcount %u, newcount %u\n", fragment, oldcount, newcount);
UFSD("ENTER, fragment %llu, oldcount %u, newcount %u\n",
(unsigned long long)fragment, oldcount, newcount);
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
usb1 = ubh_get_usb_first (uspi);
count = newcount - oldcount;
cgno = ufs_dtog(fragment);
cgno = ufs_dtog(uspi, fragment);
if (fs32_to_cpu(sb, UFS_SB(sb)->fs_cs(cgno).cs_nffree) < count)
return 0;
if ((ufs_fragnum (fragment) + newcount) > uspi->s_fpb)
@ -483,7 +509,7 @@ ufs_add_fragments (struct inode * inode, unsigned fragment,
return 0;
}
fragno = ufs_dtogd (fragment);
fragno = ufs_dtogd(uspi, fragment);
fragoff = ufs_fragnum (fragno);
for (i = oldcount; i < newcount; i++)
if (ubh_isclr (UCPI_UBH(ucpi), ucpi->c_freeoff, fragno + i))
@ -521,7 +547,7 @@ ufs_add_fragments (struct inode * inode, unsigned fragment,
}
sb->s_dirt = 1;
UFSD("EXIT, fragment %u\n", fragment);
UFSD("EXIT, fragment %llu\n", (unsigned long long)fragment);
return fragment;
}
@ -534,17 +560,19 @@ ufs_add_fragments (struct inode * inode, unsigned fragment,
if (fs32_to_cpu(sb, ucg->cg_frsum[k])) \
goto cg_found;
static unsigned ufs_alloc_fragments (struct inode * inode, unsigned cgno,
unsigned goal, unsigned count, int * err)
static u64 ufs_alloc_fragments(struct inode *inode, unsigned cgno,
u64 goal, unsigned count, int *err)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
struct ufs_cg_private_info * ucpi;
struct ufs_cylinder_group * ucg;
unsigned oldcg, i, j, k, result, allocsize;
unsigned oldcg, i, j, k, allocsize;
u64 result;
UFSD("ENTER, ino %lu, cgno %u, goal %u, count %u\n", inode->i_ino, cgno, goal, count);
UFSD("ENTER, ino %lu, cgno %u, goal %llu, count %u\n",
inode->i_ino, cgno, (unsigned long long)goal, count);
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
@ -593,7 +621,7 @@ static unsigned ufs_alloc_fragments (struct inode * inode, unsigned cgno,
if (count == uspi->s_fpb) {
result = ufs_alloccg_block (inode, ucpi, goal, err);
if (result == (unsigned)-1)
if (result == INVBLOCK)
return 0;
goto succed;
}
@ -604,9 +632,9 @@ static unsigned ufs_alloc_fragments (struct inode * inode, unsigned cgno,
if (allocsize == uspi->s_fpb) {
result = ufs_alloccg_block (inode, ucpi, goal, err);
if (result == (unsigned)-1)
if (result == INVBLOCK)
return 0;
goal = ufs_dtogd (result);
goal = ufs_dtogd(uspi, result);
for (i = count; i < uspi->s_fpb; i++)
ubh_setbit (UCPI_UBH(ucpi), ucpi->c_freeoff, goal + i);
i = uspi->s_fpb - count;
@ -620,7 +648,7 @@ static unsigned ufs_alloc_fragments (struct inode * inode, unsigned cgno,
}
result = ufs_bitmap_search (sb, ucpi, goal, allocsize);
if (result == (unsigned)-1)
if (result == INVBLOCK)
return 0;
if(DQUOT_ALLOC_BLOCK(inode, count)) {
*err = -EDQUOT;
@ -647,20 +675,21 @@ static unsigned ufs_alloc_fragments (struct inode * inode, unsigned cgno,
sb->s_dirt = 1;
result += cgno * uspi->s_fpg;
UFSD("EXIT3, result %u\n", result);
UFSD("EXIT3, result %llu\n", (unsigned long long)result);
return result;
}
static unsigned ufs_alloccg_block (struct inode * inode,
struct ufs_cg_private_info * ucpi, unsigned goal, int * err)
static u64 ufs_alloccg_block(struct inode *inode,
struct ufs_cg_private_info *ucpi,
u64 goal, int *err)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct ufs_super_block_first * usb1;
struct ufs_cylinder_group * ucg;
unsigned result, cylno, blkno;
u64 result, blkno;
UFSD("ENTER, goal %u\n", goal);
UFSD("ENTER, goal %llu\n", (unsigned long long)goal);
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
@ -672,7 +701,7 @@ static unsigned ufs_alloccg_block (struct inode * inode,
goto norot;
}
goal = ufs_blknum (goal);
goal = ufs_dtogd (goal);
goal = ufs_dtogd(uspi, goal);
/*
* If the requested block is available, use it.
@ -684,8 +713,8 @@ static unsigned ufs_alloccg_block (struct inode * inode,
norot:
result = ufs_bitmap_search (sb, ucpi, goal, uspi->s_fpb);
if (result == (unsigned)-1)
return (unsigned)-1;
if (result == INVBLOCK)
return INVBLOCK;
ucpi->c_rotor = result;
gotit:
blkno = ufs_fragstoblks(result);
@ -694,17 +723,22 @@ static unsigned ufs_alloccg_block (struct inode * inode,
ufs_clusteracct (sb, ucpi, blkno, -1);
if(DQUOT_ALLOC_BLOCK(inode, uspi->s_fpb)) {
*err = -EDQUOT;
return (unsigned)-1;
return INVBLOCK;
}
fs32_sub(sb, &ucg->cg_cs.cs_nbfree, 1);
uspi->cs_total.cs_nbfree--;
fs32_sub(sb, &UFS_SB(sb)->fs_cs(ucpi->c_cgx).cs_nbfree, 1);
cylno = ufs_cbtocylno(result);
fs16_sub(sb, &ubh_cg_blks(ucpi, cylno, ufs_cbtorpos(result)), 1);
fs32_sub(sb, &ubh_cg_blktot(ucpi, cylno), 1);
if (uspi->fs_magic != UFS2_MAGIC) {
unsigned cylno = ufs_cbtocylno((unsigned)result);
fs16_sub(sb, &ubh_cg_blks(ucpi, cylno,
ufs_cbtorpos((unsigned)result)), 1);
fs32_sub(sb, &ubh_cg_blktot(ucpi, cylno), 1);
}
UFSD("EXIT, result %u\n", result);
UFSD("EXIT, result %llu\n", (unsigned long long)result);
return result;
}
@ -744,9 +778,9 @@ static unsigned ubh_scanc(struct ufs_sb_private_info *uspi,
* @goal: near which block we want find new one
* @count: specified size
*/
static unsigned ufs_bitmap_search(struct super_block *sb,
struct ufs_cg_private_info *ucpi,
unsigned goal, unsigned count)
static u64 ufs_bitmap_search(struct super_block *sb,
struct ufs_cg_private_info *ucpi,
u64 goal, unsigned count)
{
/*
* Bit patterns for identifying fragments in the block map
@ -761,16 +795,18 @@ static unsigned ufs_bitmap_search(struct super_block *sb,
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
struct ufs_super_block_first *usb1;
struct ufs_cylinder_group *ucg;
unsigned start, length, loc, result;
unsigned start, length, loc;
unsigned pos, want, blockmap, mask, end;
u64 result;
UFSD("ENTER, cg %u, goal %u, count %u\n", ucpi->c_cgx, goal, count);
UFSD("ENTER, cg %u, goal %llu, count %u\n", ucpi->c_cgx,
(unsigned long long)goal, count);
usb1 = ubh_get_usb_first (uspi);
ucg = ubh_get_ucg(UCPI_UBH(ucpi));
if (goal)
start = ufs_dtogd(goal) >> 3;
start = ufs_dtogd(uspi, goal) >> 3;
else
start = ucpi->c_frotor >> 3;
@ -790,7 +826,7 @@ static unsigned ufs_bitmap_search(struct super_block *sb,
" length %u, count %u, freeoff %u\n",
ucpi->c_cgx, start, length, count,
ucpi->c_freeoff);
return (unsigned)-1;
return INVBLOCK;
}
start = 0;
}
@ -808,7 +844,8 @@ static unsigned ufs_bitmap_search(struct super_block *sb,
want = want_arr[count];
for (pos = 0; pos <= uspi->s_fpb - count; pos++) {
if ((blockmap & mask) == want) {
UFSD("EXIT, result %u\n", result);
UFSD("EXIT, result %llu\n",
(unsigned long long)result);
return result + pos;
}
mask <<= 1;
@ -819,7 +856,7 @@ static unsigned ufs_bitmap_search(struct super_block *sb,
ufs_error(sb, "ufs_bitmap_search", "block not in map on cg %u\n",
ucpi->c_cgx);
UFSD("EXIT (FAILED)\n");
return (unsigned)-1;
return INVBLOCK;
}
static void ufs_clusteracct(struct super_block * sb,

82
fs/ufs/inode.c
View File

@ -170,7 +170,7 @@ static u64 ufs_frag_map(struct inode *inode, sector_t frag)
* @locked_page - for ufs_new_fragments()
*/
static struct buffer_head *
ufs_inode_getfrag(struct inode *inode, unsigned int fragment,
ufs_inode_getfrag(struct inode *inode, u64 fragment,
sector_t new_fragment, unsigned int required, int *err,
long *phys, int *new, struct page *locked_page)
{
@ -178,12 +178,12 @@ ufs_inode_getfrag(struct inode *inode, unsigned int fragment,
struct super_block *sb = inode->i_sb;
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
struct buffer_head * result;
unsigned block, blockoff, lastfrag, lastblock, lastblockoff;
unsigned tmp, goal;
__fs32 * p, * p2;
unsigned blockoff, lastblockoff;
u64 tmp, goal, lastfrag, block, lastblock;
void *p, *p2;
UFSD("ENTER, ino %lu, fragment %u, new_fragment %llu, required %u, "
"metadata %d\n", inode->i_ino, fragment,
UFSD("ENTER, ino %lu, fragment %llu, new_fragment %llu, required %u, "
"metadata %d\n", inode->i_ino, (unsigned long long)fragment,
(unsigned long long)new_fragment, required, !phys);
/* TODO : to be done for write support
@ -193,17 +193,20 @@ ufs_inode_getfrag(struct inode *inode, unsigned int fragment,
block = ufs_fragstoblks (fragment);
blockoff = ufs_fragnum (fragment);
p = ufsi->i_u1.i_data + block;
p = ufs_get_direct_data_ptr(uspi, ufsi, block);
goal = 0;
repeat:
tmp = fs32_to_cpu(sb, *p);
tmp = ufs_data_ptr_to_cpu(sb, p);
lastfrag = ufsi->i_lastfrag;
if (tmp && fragment < lastfrag) {
if (!phys) {
result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff);
if (tmp == fs32_to_cpu(sb, *p)) {
UFSD("EXIT, result %u\n", tmp + blockoff);
if (tmp == ufs_data_ptr_to_cpu(sb, p)) {
UFSD("EXIT, result %llu\n",
(unsigned long long)tmp + blockoff);
return result;
}
brelse (result);
@ -224,10 +227,11 @@ ufs_inode_getfrag(struct inode *inode, unsigned int fragment,
* We must reallocate last allocated block
*/
if (lastblockoff) {
p2 = ufsi->i_u1.i_data + lastblock;
tmp = ufs_new_fragments (inode, p2, lastfrag,
fs32_to_cpu(sb, *p2), uspi->s_fpb - lastblockoff,
err, locked_page);
p2 = ufs_get_direct_data_ptr(uspi, ufsi, lastblock);
tmp = ufs_new_fragments(inode, p2, lastfrag,
ufs_data_ptr_to_cpu(sb, p2),
uspi->s_fpb - lastblockoff,
err, locked_page);
if (!tmp) {
if (lastfrag != ufsi->i_lastfrag)
goto repeat;
@ -237,27 +241,31 @@ ufs_inode_getfrag(struct inode *inode, unsigned int fragment,
lastfrag = ufsi->i_lastfrag;
}
tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[lastblock]);
tmp = ufs_data_ptr_to_cpu(sb,
ufs_get_direct_data_ptr(uspi, ufsi,
lastblock));
if (tmp)
goal = tmp + uspi->s_fpb;
tmp = ufs_new_fragments (inode, p, fragment - blockoff,
goal, required + blockoff,
err,
phys != NULL ? locked_page : NULL);
}
} else if (lastblock == block) {
/*
* We will extend last allocated block
*/
else if (lastblock == block) {
tmp = ufs_new_fragments(inode, p, fragment - (blockoff - lastblockoff),
fs32_to_cpu(sb, *p), required + (blockoff - lastblockoff),
tmp = ufs_new_fragments(inode, p, fragment -
(blockoff - lastblockoff),
ufs_data_ptr_to_cpu(sb, p),
required + (blockoff - lastblockoff),
err, phys != NULL ? locked_page : NULL);
} else /* (lastblock > block) */ {
/*
* We will allocate new block before last allocated block
*/
if (block) {
tmp = fs32_to_cpu(sb, ufsi->i_u1.i_data[block-1]);
tmp = ufs_data_ptr_to_cpu(sb,
ufs_get_direct_data_ptr(uspi, ufsi, block - 1));
if (tmp)
goal = tmp + uspi->s_fpb;
}
@ -266,7 +274,7 @@ ufs_inode_getfrag(struct inode *inode, unsigned int fragment,
phys != NULL ? locked_page : NULL);
}
if (!tmp) {
if ((!blockoff && *p) ||
if ((!blockoff && ufs_data_ptr_to_cpu(sb, p)) ||
(blockoff && lastfrag != ufsi->i_lastfrag))
goto repeat;
*err = -ENOSPC;
@ -286,7 +294,7 @@ ufs_inode_getfrag(struct inode *inode, unsigned int fragment,
if (IS_SYNC(inode))
ufs_sync_inode (inode);
mark_inode_dirty(inode);
UFSD("EXIT, result %u\n", tmp + blockoff);
UFSD("EXIT, result %llu\n", (unsigned long long)tmp + blockoff);
return result;
/* This part : To be implemented ....
@ -320,20 +328,22 @@ ufs_inode_getfrag(struct inode *inode, unsigned int fragment,
*/
static struct buffer_head *
ufs_inode_getblock(struct inode *inode, struct buffer_head *bh,
unsigned int fragment, sector_t new_fragment, int *err,
u64 fragment, sector_t new_fragment, int *err,
long *phys, int *new, struct page *locked_page)
{
struct super_block *sb = inode->i_sb;
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
struct buffer_head * result;
unsigned tmp, goal, block, blockoff;
__fs32 * p;
unsigned blockoff;
u64 tmp, goal, block;
void *p;
block = ufs_fragstoblks (fragment);
blockoff = ufs_fragnum (fragment);
UFSD("ENTER, ino %lu, fragment %u, new_fragment %llu, metadata %d\n",
inode->i_ino, fragment, (unsigned long long)new_fragment, !phys);
UFSD("ENTER, ino %lu, fragment %llu, new_fragment %llu, metadata %d\n",
inode->i_ino, (unsigned long long)fragment,
(unsigned long long)new_fragment, !phys);
result = NULL;
if (!bh)
@ -344,14 +354,16 @@ ufs_inode_getblock(struct inode *inode, struct buffer_head *bh,
if (!buffer_uptodate(bh))
goto out;
}
p = (__fs32 *) bh->b_data + block;
if (uspi->fs_magic == UFS2_MAGIC)
p = (__fs64 *)bh->b_data + block;
else
p = (__fs32 *)bh->b_data + block;
repeat:
tmp = fs32_to_cpu(sb, *p);
tmp = ufs_data_ptr_to_cpu(sb, p);
if (tmp) {
if (!phys) {
result = sb_getblk(sb, uspi->s_sbbase + tmp + blockoff);
if (tmp == fs32_to_cpu(sb, *p))
if (tmp == ufs_data_ptr_to_cpu(sb, p))
goto out;
brelse (result);
goto repeat;
@ -361,14 +373,16 @@ ufs_inode_getblock(struct inode *inode, struct buffer_head *bh,
}
}
if (block && (tmp = fs32_to_cpu(sb, ((__fs32*)bh->b_data)[block-1])))
if (block && (uspi->fs_magic == UFS2_MAGIC ?
(tmp = fs64_to_cpu(sb, ((__fs64 *)bh->b_data)[block-1])) :
(tmp = fs32_to_cpu(sb, ((__fs32 *)bh->b_data)[block-1]))))
goal = tmp + uspi->s_fpb;
else
goal = bh->b_blocknr + uspi->s_fpb;
tmp = ufs_new_fragments(inode, p, ufs_blknum(new_fragment), goal,
uspi->s_fpb, err, locked_page);
if (!tmp) {
if (fs32_to_cpu(sb, *p))
if (ufs_data_ptr_to_cpu(sb, p))
goto repeat;
goto out;
}
@ -386,7 +400,7 @@ ufs_inode_getblock(struct inode *inode, struct buffer_head *bh,
sync_dirty_buffer(bh);
inode->i_ctime = CURRENT_TIME_SEC;
mark_inode_dirty(inode);
UFSD("result %u\n", tmp + blockoff);
UFSD("result %llu\n", (unsigned long long)tmp + blockoff);
out:
brelse (bh);
UFSD("EXIT\n");

139
fs/ufs/truncate.c
View File

@ -30,8 +30,8 @@
*/
/*
* Modified to avoid infinite loop on 2006 by
* Evgeniy Dushistov <dushistov@mail.ru>
* Adoptation to use page cache and UFS2 write support by
* Evgeniy Dushistov <dushistov@mail.ru>, 2006-2007
*/
#include <linux/errno.h>
@ -63,13 +63,13 @@
#define DIRECT_FRAGMENT ((inode->i_size + uspi->s_fsize - 1) >> uspi->s_fshift)
static int ufs_trunc_direct (struct inode * inode)
static int ufs_trunc_direct(struct inode *inode)
{
struct ufs_inode_info *ufsi = UFS_I(inode);
struct super_block * sb;
struct ufs_sb_private_info * uspi;
__fs32 * p;
unsigned frag1, frag2, frag3, frag4, block1, block2;
void *p;
u64 frag1, frag2, frag3, frag4, block1, block2;
unsigned frag_to_free, free_count;
unsigned i, tmp;
int retry;
@ -91,13 +91,16 @@ static int ufs_trunc_direct (struct inode * inode)
if (frag2 > frag3) {
frag2 = frag4;
frag3 = frag4 = 0;
}
else if (frag2 < frag3) {
} else if (frag2 < frag3) {
block1 = ufs_fragstoblks (frag2);
block2 = ufs_fragstoblks (frag3);
}
UFSD("frag1 %u, frag2 %u, block1 %u, block2 %u, frag3 %u, frag4 %u\n", frag1, frag2, block1, block2, frag3, frag4);
UFSD("frag1 %llu, frag2 %llu, block1 %llu, block2 %llu, frag3 %llu,"
" frag4 %llu\n",
(unsigned long long)frag1, (unsigned long long)frag2,
(unsigned long long)block1, (unsigned long long)block2,
(unsigned long long)frag3, (unsigned long long)frag4);
if (frag1 >= frag2)
goto next1;
@ -105,8 +108,8 @@ static int ufs_trunc_direct (struct inode * inode)
/*
* Free first free fragments
*/
p = ufsi->i_u1.i_data + ufs_fragstoblks (frag1);
tmp = fs32_to_cpu(sb, *p);
p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag1));
tmp = ufs_data_ptr_to_cpu(sb, p);
if (!tmp )
ufs_panic (sb, "ufs_trunc_direct", "internal error");
frag2 -= frag1;
@ -121,12 +124,11 @@ static int ufs_trunc_direct (struct inode * inode)
* Free whole blocks
*/
for (i = block1 ; i < block2; i++) {
p = ufsi->i_u1.i_data + i;
tmp = fs32_to_cpu(sb, *p);
p = ufs_get_direct_data_ptr(uspi, ufsi, i);
tmp = ufs_data_ptr_to_cpu(sb, p);
if (!tmp)
continue;
*p = 0;
ufs_data_ptr_clear(uspi, p);
if (free_count == 0) {
frag_to_free = tmp;
@ -150,13 +152,12 @@ static int ufs_trunc_direct (struct inode * inode)
/*
* Free last free fragments
*/
p = ufsi->i_u1.i_data + ufs_fragstoblks (frag3);
tmp = fs32_to_cpu(sb, *p);
p = ufs_get_direct_data_ptr(uspi, ufsi, ufs_fragstoblks(frag3));
tmp = ufs_data_ptr_to_cpu(sb, p);
if (!tmp )
ufs_panic(sb, "ufs_truncate_direct", "internal error");
frag4 = ufs_fragnum (frag4);
*p = 0;
ufs_data_ptr_clear(uspi, p);
ufs_free_fragments (inode, tmp, frag4);
mark_inode_dirty(inode);
@ -167,17 +168,20 @@ static int ufs_trunc_direct (struct inode * inode)
}
static int ufs_trunc_indirect (struct inode * inode, unsigned offset, __fs32 *p)
static int ufs_trunc_indirect(struct inode *inode, u64 offset, void *p)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct ufs_buffer_head * ind_ubh;
__fs32 * ind;
unsigned indirect_block, i, tmp;
unsigned frag_to_free, free_count;
void *ind;
u64 tmp, indirect_block, i, frag_to_free;
unsigned free_count;
int retry;
UFSD("ENTER\n");
UFSD("ENTER: ino %lu, offset %llu, p: %p\n",
inode->i_ino, (unsigned long long)offset, p);
BUG_ON(!p);
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
@ -186,27 +190,27 @@ static int ufs_trunc_indirect (struct inode * inode, unsigned offset, __fs32 *p)
free_count = 0;
retry = 0;
tmp = fs32_to_cpu(sb, *p);
tmp = ufs_data_ptr_to_cpu(sb, p);
if (!tmp)
return 0;
ind_ubh = ubh_bread(sb, tmp, uspi->s_bsize);
if (tmp != fs32_to_cpu(sb, *p)) {
if (tmp != ufs_data_ptr_to_cpu(sb, p)) {
ubh_brelse (ind_ubh);
return 1;
}
if (!ind_ubh) {
*p = 0;
ufs_data_ptr_clear(uspi, p);
return 0;
}
indirect_block = (DIRECT_BLOCK > offset) ? (DIRECT_BLOCK - offset) : 0;
for (i = indirect_block; i < uspi->s_apb; i++) {
ind = ubh_get_addr32 (ind_ubh, i);
tmp = fs32_to_cpu(sb, *ind);
ind = ubh_get_data_ptr(uspi, ind_ubh, i);
tmp = ufs_data_ptr_to_cpu(sb, ind);
if (!tmp)
continue;
*ind = 0;
ufs_data_ptr_clear(uspi, ind);
ubh_mark_buffer_dirty(ind_ubh);
if (free_count == 0) {
frag_to_free = tmp;
@ -226,11 +230,12 @@ static int ufs_trunc_indirect (struct inode * inode, unsigned offset, __fs32 *p)
ufs_free_blocks (inode, frag_to_free, free_count);
}
for (i = 0; i < uspi->s_apb; i++)
if (*ubh_get_addr32(ind_ubh,i))
if (!ufs_is_data_ptr_zero(uspi,
ubh_get_data_ptr(uspi, ind_ubh, i)))
break;
if (i >= uspi->s_apb) {
tmp = fs32_to_cpu(sb, *p);
*p = 0;
tmp = ufs_data_ptr_to_cpu(sb, p);
ufs_data_ptr_clear(uspi, p);
ufs_free_blocks (inode, tmp, uspi->s_fpb);
mark_inode_dirty(inode);
@ -248,13 +253,13 @@ static int ufs_trunc_indirect (struct inode * inode, unsigned offset, __fs32 *p)
return retry;
}
static int ufs_trunc_dindirect (struct inode *inode, unsigned offset, __fs32 *p)
static int ufs_trunc_dindirect(struct inode *inode, u64 offset, void *p)
{
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct ufs_buffer_head * dind_bh;
unsigned i, tmp, dindirect_block;
__fs32 * dind;
struct ufs_buffer_head *dind_bh;
u64 i, tmp, dindirect_block;
void *dind;
int retry = 0;
UFSD("ENTER\n");
@ -266,22 +271,22 @@ static int ufs_trunc_dindirect (struct inode *inode, unsigned offset, __fs32 *p)
? ((DIRECT_BLOCK - offset) >> uspi->s_apbshift) : 0;
retry = 0;
tmp = fs32_to_cpu(sb, *p);
tmp = ufs_data_ptr_to_cpu(sb, p);
if (!tmp)
return 0;
dind_bh = ubh_bread(sb, tmp, uspi->s_bsize);
if (tmp != fs32_to_cpu(sb, *p)) {
if (tmp != ufs_data_ptr_to_cpu(sb, p)) {
ubh_brelse (dind_bh);
return 1;
}
if (!dind_bh) {
*p = 0;
ufs_data_ptr_clear(uspi, p);
return 0;
}
for (i = dindirect_block ; i < uspi->s_apb ; i++) {
dind = ubh_get_addr32 (dind_bh, i);
tmp = fs32_to_cpu(sb, *dind);
dind = ubh_get_data_ptr(uspi, dind_bh, i);
tmp = ufs_data_ptr_to_cpu(sb, dind);
if (!tmp)
continue;
retry |= ufs_trunc_indirect (inode, offset + (i << uspi->s_apbshift), dind);
@ -289,11 +294,12 @@ static int ufs_trunc_dindirect (struct inode *inode, unsigned offset, __fs32 *p)
}
for (i = 0; i < uspi->s_apb; i++)
if (*ubh_get_addr32 (dind_bh, i))
if (!ufs_is_data_ptr_zero(uspi,
ubh_get_data_ptr(uspi, dind_bh, i)))
break;
if (i >= uspi->s_apb) {
tmp = fs32_to_cpu(sb, *p);
*p = 0;
tmp = ufs_data_ptr_to_cpu(sb, p);
ufs_data_ptr_clear(uspi, p);
ufs_free_blocks(inode, tmp, uspi->s_fpb);
mark_inode_dirty(inode);
@ -311,34 +317,33 @@ static int ufs_trunc_dindirect (struct inode *inode, unsigned offset, __fs32 *p)
return retry;
}
static int ufs_trunc_tindirect (struct inode * inode)
static int ufs_trunc_tindirect(struct inode *inode)
{
struct super_block *sb = inode->i_sb;
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
struct ufs_inode_info *ufsi = UFS_I(inode);
struct super_block * sb;
struct ufs_sb_private_info * uspi;
struct ufs_buffer_head * tind_bh;
unsigned tindirect_block, tmp, i;
__fs32 * tind, * p;
u64 tindirect_block, tmp, i;
void *tind, *p;
int retry;
UFSD("ENTER\n");
sb = inode->i_sb;
uspi = UFS_SB(sb)->s_uspi;
retry = 0;
tindirect_block = (DIRECT_BLOCK > (UFS_NDADDR + uspi->s_apb + uspi->s_2apb))
? ((DIRECT_BLOCK - UFS_NDADDR - uspi->s_apb - uspi->s_2apb) >> uspi->s_2apbshift) : 0;
p = ufsi->i_u1.i_data + UFS_TIND_BLOCK;
if (!(tmp = fs32_to_cpu(sb, *p)))
p = ufs_get_direct_data_ptr(uspi, ufsi, UFS_TIND_BLOCK);
if (!(tmp = ufs_data_ptr_to_cpu(sb, p)))
return 0;
tind_bh = ubh_bread (sb, tmp, uspi->s_bsize);
if (tmp != fs32_to_cpu(sb, *p)) {
if (tmp != ufs_data_ptr_to_cpu(sb, p)) {
ubh_brelse (tind_bh);
return 1;
}
if (!tind_bh) {
*p = 0;
ufs_data_ptr_clear(uspi, p);
return 0;
}
@ -349,11 +354,12 @@ static int ufs_trunc_tindirect (struct inode * inode)
ubh_mark_buffer_dirty(tind_bh);
}
for (i = 0; i < uspi->s_apb; i++)
if (*ubh_get_addr32 (tind_bh, i))
if (!ufs_is_data_ptr_zero(uspi,
ubh_get_data_ptr(uspi, tind_bh, i)))
break;
if (i >= uspi->s_apb) {
tmp = fs32_to_cpu(sb, *p);
*p = 0;
tmp = ufs_data_ptr_to_cpu(sb, p);
ufs_data_ptr_clear(uspi, p);
ufs_free_blocks(inode, tmp, uspi->s_fpb);
mark_inode_dirty(inode);
@ -375,7 +381,8 @@ static int ufs_alloc_lastblock(struct inode *inode)
int err = 0;
struct address_space *mapping = inode->i_mapping;
struct ufs_sb_private_info *uspi = UFS_SB(inode->i_sb)->s_uspi;
unsigned lastfrag, i, end;
unsigned i, end;
sector_t lastfrag;
struct page *lastpage;
struct buffer_head *bh;
@ -430,7 +437,9 @@ int ufs_truncate(struct inode *inode, loff_t old_i_size)
struct ufs_sb_private_info *uspi = UFS_SB(sb)->s_uspi;
int retry, err = 0;
UFSD("ENTER\n");
UFSD("ENTER: ino %lu, i_size: %llu, old_i_size: %llu\n",
inode->i_ino, (unsigned long long)i_size_read(inode),
(unsigned long long)old_i_size);
if (!(S_ISREG(inode->i_mode) || S_ISDIR(inode->i_mode) ||
S_ISLNK(inode->i_mode)))
@ -450,10 +459,12 @@ int ufs_truncate(struct inode *inode, loff_t old_i_size)
lock_kernel();
while (1) {
retry = ufs_trunc_direct(inode);
retry |= ufs_trunc_indirect (inode, UFS_IND_BLOCK,
(__fs32 *) &ufsi->i_u1.i_data[UFS_IND_BLOCK]);
retry |= ufs_trunc_dindirect (inode, UFS_IND_BLOCK + uspi->s_apb,
(__fs32 *) &ufsi->i_u1.i_data[UFS_DIND_BLOCK]);
retry |= ufs_trunc_indirect(inode, UFS_IND_BLOCK,
ufs_get_direct_data_ptr(uspi, ufsi,
UFS_IND_BLOCK));
retry |= ufs_trunc_dindirect(inode, UFS_IND_BLOCK + uspi->s_apb,
ufs_get_direct_data_ptr(uspi, ufsi,
UFS_DIND_BLOCK));
retry |= ufs_trunc_tindirect (inode);
if (!retry)
break;

57
fs/ufs/util.h
View File

@ -305,8 +305,22 @@ static inline void *get_usb_offset(struct ufs_sb_private_info *uspi,
(((__fs32*)((ubh)->bh[(begin) >> (uspi->s_fshift-2)]->b_data)) + \
((begin) & ((uspi->s_fsize>>2) - 1)))
#define ubh_get_addr64(ubh,begin) \
(((__fs64*)((ubh)->bh[(begin) >> (uspi->s_fshift-3)]->b_data)) + \
((begin) & ((uspi->s_fsize>>3) - 1)))
#define ubh_get_addr ubh_get_addr8
static inline void *ubh_get_data_ptr(struct ufs_sb_private_info *uspi,
struct ufs_buffer_head *ubh,
u64 blk)
{
if (uspi->fs_magic == UFS2_MAGIC)
return ubh_get_addr64(ubh, blk);
else
return ubh_get_addr32(ubh, blk);
}
#define ubh_blkmap(ubh,begin,bit) \
((*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) >> ((bit) & 7)) & (0xff >> (UFS_MAXFRAG - uspi->s_fpb)))
@ -507,3 +521,46 @@ static inline void ufs_fragacct (struct super_block * sb, unsigned blockmap,
if (fragsize > 0 && fragsize < uspi->s_fpb)
fs32_add(sb, &fraglist[fragsize], cnt);
}
static inline void *ufs_get_direct_data_ptr(struct ufs_sb_private_info *uspi,
struct ufs_inode_info *ufsi,
unsigned blk)
{
BUG_ON(blk > UFS_TIND_BLOCK);
return uspi->fs_magic == UFS2_MAGIC ?
(void *)&ufsi->i_u1.u2_i_data[blk] :
(void *)&ufsi->i_u1.i_data[blk];
}
static inline u64 ufs_data_ptr_to_cpu(struct super_block *sb, void *p)
{
return UFS_SB(sb)->s_uspi->fs_magic == UFS2_MAGIC ?
fs64_to_cpu(sb, *(__fs64 *)p) :
fs32_to_cpu(sb, *(__fs32 *)p);
}
static inline void ufs_cpu_to_data_ptr(struct super_block *sb, void *p, u64 val)
{
if (UFS_SB(sb)->s_uspi->fs_magic == UFS2_MAGIC)
*(__fs64 *)p = cpu_to_fs64(sb, val);
else
*(__fs32 *)p = cpu_to_fs32(sb, val);
}
static inline void ufs_data_ptr_clear(struct ufs_sb_private_info *uspi,
void *p)
{
if (uspi->fs_magic == UFS2_MAGIC)
*(__fs64 *)p = 0;
else
*(__fs32 *)p = 0;
}
static inline int ufs_is_data_ptr_zero(struct ufs_sb_private_info *uspi,
void *p)
{
if (uspi->fs_magic == UFS2_MAGIC)
return *(__fs64 *)p == 0;
else
return *(__fs32 *)p == 0;
}

33
include/linux/ufs_fs.h
View File

@ -40,6 +40,7 @@ typedef __u64 __fs64;
typedef __u32 __fs32;
typedef __u16 __fs16;
#else
#include <asm/div64.h>
typedef __u64 __bitwise __fs64;
typedef __u32 __bitwise __fs32;
typedef __u16 __bitwise __fs16;
@ -266,13 +267,6 @@ typedef __u16 __bitwise __fs16;
#define ufs_inotofsba(x) (((u64)ufs_cgimin(ufs_inotocg(x))) + ufs_inotocgoff(x) / uspi->s_inopf)
#define ufs_inotofsbo(x) ((x) % uspi->s_inopf)
/*
* Give cylinder group number for a file system block.
* Give cylinder group block number for a file system block.
*/
#define ufs_dtog(d) ((d) / uspi->s_fpg)
#define ufs_dtogd(d) ((d) % uspi->s_fpg)
/*
* Compute the cylinder and rotational position of a cyl block addr.
*/
@ -723,6 +717,7 @@ struct ufs_cg_private_info {
__u32 c_nclusterblks; /* number of clusters this cg */
};
struct ufs_sb_private_info {
struct ufs_buffer_head s_ubh; /* buffer containing super block */
struct ufs_csum_core cs_total;
@ -952,10 +947,10 @@ struct ufs_super_block_third {
#ifdef __KERNEL__
/* balloc.c */
extern void ufs_free_fragments (struct inode *, unsigned, unsigned);
extern void ufs_free_blocks (struct inode *, unsigned, unsigned);
extern unsigned ufs_new_fragments(struct inode *, __fs32 *, unsigned, unsigned,
unsigned, int *, struct page *);
extern void ufs_free_fragments (struct inode *, u64, unsigned);
extern void ufs_free_blocks (struct inode *, u64, unsigned);
extern u64 ufs_new_fragments(struct inode *, void *, u64, u64,
unsigned, int *, struct page *);
/* cylinder.c */
extern struct ufs_cg_private_info * ufs_load_cylinder (struct super_block *, unsigned);
@ -1016,6 +1011,22 @@ static inline struct ufs_inode_info *UFS_I(struct inode *inode)
return container_of(inode, struct ufs_inode_info, vfs_inode);
}
/*
* Give cylinder group number for a file system block.
* Give cylinder group block number for a file system block.
*/
/* #define ufs_dtog(d) ((d) / uspi->s_fpg) */
static inline u64 ufs_dtog(struct ufs_sb_private_info * uspi, u64 b)
{
do_div(b, uspi->s_fpg);
return b;
}
/* #define ufs_dtogd(d) ((d) % uspi->s_fpg) */
static inline u32 ufs_dtogd(struct ufs_sb_private_info * uspi, u64 b)
{
return do_div(b, uspi->s_fpg);
}
#endif /* __KERNEL__ */
#endif /* __LINUX_UFS_FS_H */

2
include/linux/ufs_fs_i.h
View File

@ -25,7 +25,7 @@ struct ufs_inode_info {
__u32 i_unused2;
__u32 i_oeftflag;
__u16 i_osync;
__u32 i_lastfrag;
__u64 i_lastfrag;
__u32 i_dir_start_lookup;
struct inode vfs_inode;
};