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Merge branch 'xfs-4.10-misc-fixes-2' into for-next

This commit is contained in:
Dave Chinner 2016-11-28 15:06:03 +11:00
parent ed24bee6f2 f782088c9e
commit b7b26110ed
7 changed files with 63 additions and 54 deletions
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40
fs/xfs/libxfs/xfs_bmap.c
View File

@ -49,6 +49,8 @@
#include "xfs_rmap.h"
#include "xfs_ag_resv.h"
#include "xfs_refcount.h"
#include "xfs_rmap_btree.h"
#include "xfs_icache.h"
kmem_zone_t *xfs_bmap_free_item_zone;
@ -190,8 +192,12 @@ xfs_bmap_worst_indlen(
int maxrecs; /* maximum record count at this level */
xfs_mount_t *mp; /* mount structure */
xfs_filblks_t rval; /* return value */
xfs_filblks_t orig_len;
mp = ip->i_mount;
/* Calculate the worst-case size of the bmbt. */
orig_len = len;
maxrecs = mp->m_bmap_dmxr[0];
for (level = 0, rval = 0;
level < XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK);
@ -199,12 +205,20 @@ xfs_bmap_worst_indlen(
len += maxrecs - 1;
do_div(len, maxrecs);
rval += len;
if (len == 1)
return rval + XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) -
if (len == 1) {
rval += XFS_BM_MAXLEVELS(mp, XFS_DATA_FORK) -
level - 1;
break;
}
if (level == 0)
maxrecs = mp->m_bmap_dmxr[1];
}
/* Calculate the worst-case size of the rmapbt. */
if (xfs_sb_version_hasrmapbt(&mp->m_sb))
rval += 1 + xfs_rmapbt_calc_size(mp, orig_len) +
mp->m_rmap_maxlevels;
return rval;
}
@ -4141,8 +4155,9 @@ int
xfs_bmapi_reserve_delalloc(
struct xfs_inode *ip,
int whichfork,
xfs_fileoff_t aoff,
xfs_fileoff_t off,
xfs_filblks_t len,
xfs_filblks_t prealloc,
struct xfs_bmbt_irec *got,
xfs_extnum_t *lastx,
int eof)
@ -4154,10 +4169,17 @@ xfs_bmapi_reserve_delalloc(
char rt = XFS_IS_REALTIME_INODE(ip);
xfs_extlen_t extsz;
int error;
xfs_fileoff_t aoff = off;
alen = XFS_FILBLKS_MIN(len, MAXEXTLEN);
/*
* Cap the alloc length. Keep track of prealloc so we know whether to
* tag the inode before we return.
*/
alen = XFS_FILBLKS_MIN(len + prealloc, MAXEXTLEN);
if (!eof)
alen = XFS_FILBLKS_MIN(alen, got->br_startoff - aoff);
if (prealloc && alen >= len)
prealloc = alen - len;
/* Figure out the extent size, adjust alen */
if (whichfork == XFS_COW_FORK)
@ -4223,6 +4245,16 @@ xfs_bmapi_reserve_delalloc(
*/
xfs_bmbt_get_all(xfs_iext_get_ext(ifp, *lastx), got);
/*
* Tag the inode if blocks were preallocated. Note that COW fork
* preallocation can occur at the start or end of the extent, even when
* prealloc == 0, so we must also check the aligned offset and length.
*/
if (whichfork == XFS_DATA_FORK && prealloc)
xfs_inode_set_eofblocks_tag(ip);
if (whichfork == XFS_COW_FORK && (prealloc || aoff < off || alen > len))
xfs_inode_set_cowblocks_tag(ip);
ASSERT(got->br_startoff <= aoff);
ASSERT(got->br_startoff + got->br_blockcount >= aoff + alen);
ASSERT(isnullstartblock(got->br_startblock));

2
fs/xfs/libxfs/xfs_bmap.h
View File

@ -238,7 +238,7 @@ int xfs_bmap_shift_extents(struct xfs_trans *tp, struct xfs_inode *ip,
int num_exts);
int xfs_bmap_split_extent(struct xfs_inode *ip, xfs_fileoff_t split_offset);
int xfs_bmapi_reserve_delalloc(struct xfs_inode *ip, int whichfork,
xfs_fileoff_t aoff, xfs_filblks_t len,
xfs_fileoff_t off, xfs_filblks_t len, xfs_filblks_t prealloc,
struct xfs_bmbt_irec *got, xfs_extnum_t *lastx, int eof);
enum xfs_bmap_intent_type {

2
fs/xfs/libxfs/xfs_dir2.c
View File

@ -93,7 +93,7 @@ xfs_ascii_ci_compname(
return result;
}
static struct xfs_nameops xfs_ascii_ci_nameops = {
static const struct xfs_nameops xfs_ascii_ci_nameops = {
.hashname = xfs_ascii_ci_hashname,
.compname = xfs_ascii_ci_compname,
};

1
fs/xfs/xfs_buf.h
View File

@ -71,6 +71,7 @@ typedef unsigned int xfs_buf_flags_t;
{ XBF_READ, "READ" }, \
{ XBF_WRITE, "WRITE" }, \
{ XBF_READ_AHEAD, "READ_AHEAD" }, \
{ XBF_NO_IOACCT, "NO_IOACCT" }, \
{ XBF_ASYNC, "ASYNC" }, \
{ XBF_DONE, "DONE" }, \
{ XBF_STALE, "STALE" }, \

2
fs/xfs/xfs_icreate_item.c
View File

@ -133,7 +133,7 @@ xfs_icreate_item_committing(
/*
* This is the ops vector shared by all buf log items.
*/
static struct xfs_item_ops xfs_icreate_item_ops = {
static const struct xfs_item_ops xfs_icreate_item_ops = {
.iop_size = xfs_icreate_item_size,
.iop_format = xfs_icreate_item_format,
.iop_pin = xfs_icreate_item_pin,

33
fs/xfs/xfs_iomap.c
View File

@ -536,10 +536,11 @@ xfs_file_iomap_begin_delay(
xfs_fileoff_t offset_fsb = XFS_B_TO_FSBT(mp, offset);
xfs_fileoff_t maxbytes_fsb =
XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);
xfs_fileoff_t end_fsb, orig_end_fsb;
xfs_fileoff_t end_fsb;
int error = 0, eof = 0;
struct xfs_bmbt_irec got;
xfs_extnum_t idx;
xfs_fsblock_t prealloc_blocks = 0;
ASSERT(!XFS_IS_REALTIME_INODE(ip));
ASSERT(!xfs_get_extsz_hint(ip));
@ -594,33 +595,32 @@ xfs_file_iomap_begin_delay(
* the lower level functions are updated.
*/
count = min_t(loff_t, count, 1024 * PAGE_SIZE);
end_fsb = orig_end_fsb =
min(XFS_B_TO_FSB(mp, offset + count), maxbytes_fsb);
end_fsb = min(XFS_B_TO_FSB(mp, offset + count), maxbytes_fsb);
if (eof) {
xfs_fsblock_t prealloc_blocks;
prealloc_blocks = xfs_iomap_prealloc_size(ip, offset, count, idx);
if (prealloc_blocks) {
xfs_extlen_t align;
xfs_off_t end_offset;
xfs_fileoff_t p_end_fsb;
end_offset = XFS_WRITEIO_ALIGN(mp, offset + count - 1);
end_fsb = XFS_B_TO_FSBT(mp, end_offset) +
prealloc_blocks;
p_end_fsb = XFS_B_TO_FSBT(mp, end_offset) +
prealloc_blocks;
align = xfs_eof_alignment(ip, 0);
if (align)
end_fsb = roundup_64(end_fsb, align);
p_end_fsb = roundup_64(p_end_fsb, align);
end_fsb = min(end_fsb, maxbytes_fsb);
ASSERT(end_fsb > offset_fsb);
p_end_fsb = min(p_end_fsb, maxbytes_fsb);
ASSERT(p_end_fsb > offset_fsb);
prealloc_blocks = p_end_fsb - end_fsb;
}
}
retry:
error = xfs_bmapi_reserve_delalloc(ip, XFS_DATA_FORK, offset_fsb,
end_fsb - offset_fsb, &got, &idx, eof);
end_fsb - offset_fsb, prealloc_blocks, &got, &idx, eof);
switch (error) {
case 0:
break;
@ -628,8 +628,8 @@ xfs_file_iomap_begin_delay(
case -EDQUOT:
/* retry without any preallocation */
trace_xfs_delalloc_enospc(ip, offset, count);
if (end_fsb != orig_end_fsb) {
end_fsb = orig_end_fsb;
if (prealloc_blocks) {
prealloc_blocks = 0;
goto retry;
}
/*FALLTHRU*/
@ -637,13 +637,6 @@ xfs_file_iomap_begin_delay(
goto out_unlock;
}
/*
* Tag the inode as speculatively preallocated so we can reclaim this
* space on demand, if necessary.
*/
if (end_fsb != orig_end_fsb)
xfs_inode_set_eofblocks_tag(ip);
trace_xfs_iomap_alloc(ip, offset, count, 0, &got);
done:
if (isnullstartblock(got.br_startblock))

37
fs/xfs/xfs_reflink.c
View File

@ -245,11 +245,9 @@ xfs_reflink_reserve_cow(
{
struct xfs_ifork *ifp = XFS_IFORK_PTR(ip, XFS_COW_FORK);
struct xfs_bmbt_irec got;
xfs_fileoff_t end_fsb, orig_end_fsb;
int error = 0;
bool eof = false, trimmed;
xfs_extnum_t idx;
xfs_extlen_t align;
/*
* Search the COW fork extent list first. This serves two purposes:
@ -287,33 +285,12 @@ xfs_reflink_reserve_cow(
if (error)
return error;
end_fsb = orig_end_fsb = imap->br_startoff + imap->br_blockcount;
align = xfs_eof_alignment(ip, xfs_get_cowextsz_hint(ip));
if (align)
end_fsb = roundup_64(end_fsb, align);
retry:
error = xfs_bmapi_reserve_delalloc(ip, XFS_COW_FORK, imap->br_startoff,
end_fsb - imap->br_startoff, &got, &idx, eof);
switch (error) {
case 0:
break;
case -ENOSPC:
case -EDQUOT:
/* retry without any preallocation */
imap->br_blockcount, 0, &got, &idx, eof);
if (error == -ENOSPC || error == -EDQUOT)
trace_xfs_reflink_cow_enospc(ip, imap);
if (end_fsb != orig_end_fsb) {
end_fsb = orig_end_fsb;
goto retry;
}
/*FALLTHRU*/
default:
if (error)
return error;
}
if (end_fsb != orig_end_fsb)
xfs_inode_set_cowblocks_tag(ip);
trace_xfs_reflink_cow_alloc(ip, &got);
return 0;
@ -1317,8 +1294,14 @@ xfs_reflink_remap_range(
goto out_unlock;
}
if (len == 0)
/* Zero length dedupe exits immediately; reflink goes to EOF. */
if (len == 0) {
if (is_dedupe) {
ret = 0;
goto out_unlock;
}
len = isize - pos_in;
}
/* Ensure offsets don't wrap and the input is inside i_size */
if (pos_in + len < pos_in || pos_out + len < pos_out ||