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xfs: remove all boilerplate defer init/finish code

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At this point, the transaction subsystem completely manages deferred
items internally such that the common and boilerplate
xfs_trans_alloc() -> xfs_defer_init() -> xfs_defer_finish() ->
xfs_trans_commit() sequence can be replaced with a simple
transaction allocation and commit.

Remove all such boilerplate deferred ops code. In doing so, we
change each case over to use the dfops in the transaction and
specifically eliminate:

- The on-stack dfops and associated xfs_defer_init() call, as the
  internal dfops is initialized on transaction allocation.
- xfs_bmap_finish() calls that precede a final xfs_trans_commit() of
  a transaction.
- xfs_defer_cancel() calls in error handlers that precede a
  transaction cancel.

The only deferred ops calls that remain are those that are
non-deterministic with respect to the final commit of the associated
transaction or are open-coded due to special handling.

Signed-off-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
This commit is contained in:
Brian Foster 2018-07-24 13:43:13 -07:00 committed by Darrick J. Wong
parent 91ef75b657
commit c8eac49ef7
13 changed files with 44 additions and 232 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
fs/xfs/libxfs/xfs_bmap.c
View file

@ -1018,7 +1018,6 @@ xfs_bmap_add_attrfork(
int size, /* space new attribute needs */
int rsvd) /* xact may use reserved blks */
{
struct xfs_defer_ops dfops; /* freed extent records */
xfs_mount_t *mp; /* mount structure */
xfs_trans_t *tp; /* transaction pointer */
int blks; /* space reservation */
@ -1037,7 +1036,6 @@ xfs_bmap_add_attrfork(
rsvd ? XFS_TRANS_RESERVE : 0, &tp);
if (error)
return error;
xfs_defer_init(tp, &dfops);
xfs_ilock(ip, XFS_ILOCK_EXCL);
error = xfs_trans_reserve_quota_nblks(tp, ip, blks, 0, rsvd ?
@ -1102,7 +1100,7 @@ xfs_bmap_add_attrfork(
if (logflags)
xfs_trans_log_inode(tp, ip, logflags);
if (error)
goto bmap_cancel;
goto trans_cancel;
if (!xfs_sb_version_hasattr(&mp->m_sb) ||
(!xfs_sb_version_hasattr2(&mp->m_sb) && version == 2)) {
bool log_sb = false;
@ -1121,15 +1119,10 @@ xfs_bmap_add_attrfork(
xfs_log_sb(tp);
}
error = xfs_defer_finish(&tp, &dfops);
if (error)
goto bmap_cancel;
error = xfs_trans_commit(tp);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
return error;
bmap_cancel:
xfs_defer_cancel(&dfops);
trans_cancel:
xfs_trans_cancel(tp);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
@ -5953,14 +5946,12 @@ xfs_bmap_split_extent(
{
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
struct xfs_defer_ops dfops;
int error;
error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write,
XFS_DIOSTRAT_SPACE_RES(mp, 0), 0, 0, &tp);
if (error)
return error;
xfs_defer_init(tp, &dfops);
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
@ -5969,14 +5960,9 @@ xfs_bmap_split_extent(
if (error)
goto out;
error = xfs_defer_finish(&tp, &dfops);
if (error)
goto out;
return xfs_trans_commit(tp);
out:
xfs_defer_cancel(&dfops);
xfs_trans_cancel(tp);
return error;
}

10
fs/xfs/libxfs/xfs_refcount.c
View file

@ -1635,7 +1635,6 @@ xfs_refcount_recover_cow_leftovers(
struct list_head debris;
union xfs_btree_irec low;
union xfs_btree_irec high;
struct xfs_defer_ops dfops;
xfs_fsblock_t fsb;
xfs_agblock_t agbno;
int error;
@ -1691,22 +1690,17 @@ xfs_refcount_recover_cow_leftovers(
trace_xfs_refcount_recover_extent(mp, agno, &rr->rr_rrec);
/* Free the orphan record */
xfs_defer_init(tp, &dfops);
agbno = rr->rr_rrec.rc_startblock - XFS_REFC_COW_START;
fsb = XFS_AGB_TO_FSB(mp, agno, agbno);
error = xfs_refcount_free_cow_extent(mp, tp->t_dfops, fsb,
rr->rr_rrec.rc_blockcount);
if (error)
goto out_defer;
goto out_trans;
/* Free the block. */
xfs_bmap_add_free(mp, tp->t_dfops, fsb,
rr->rr_rrec.rc_blockcount, NULL);
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_defer;
error = xfs_trans_commit(tp);
if (error)
goto out_free;
@ -1716,8 +1710,6 @@ xfs_refcount_recover_cow_leftovers(
}
return error;
out_defer:
xfs_defer_cancel(tp->t_dfops);
out_trans:
xfs_trans_cancel(tp);
out_free:

2
fs/xfs/xfs_attr_inactive.c
View file

@ -382,7 +382,6 @@ xfs_attr_inactive(
{
struct xfs_trans *trans;
struct xfs_mount *mp;
struct xfs_defer_ops dfops;
int lock_mode = XFS_ILOCK_SHARED;
int error = 0;
@ -399,7 +398,6 @@ xfs_attr_inactive(
error = xfs_trans_alloc(mp, &M_RES(mp)->tr_attrinval, 0, 0, 0, &trans);
if (error)
goto out_destroy_fork;
xfs_defer_init(trans, &dfops);
lock_mode = XFS_ILOCK_EXCL;
xfs_ilock(dp, lock_mode);

43
fs/xfs/xfs_bmap_util.c
View file

@ -792,7 +792,6 @@ xfs_free_eofblocks(
int nimaps;
struct xfs_bmbt_irec imap;
struct xfs_mount *mp = ip->i_mount;
struct xfs_defer_ops dfops;
/*
* Figure out if there are any blocks beyond the end
@ -832,7 +831,6 @@ xfs_free_eofblocks(
ASSERT(XFS_FORCED_SHUTDOWN(mp));
return error;
}
xfs_defer_init(tp, &dfops);
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
@ -880,7 +878,6 @@ xfs_alloc_file_space(
int rt;
xfs_trans_t *tp;
xfs_bmbt_irec_t imaps[1], *imapp;
struct xfs_defer_ops dfops;
uint qblocks, resblks, resrtextents;
int error;
@ -973,7 +970,6 @@ xfs_alloc_file_space(
xfs_trans_ijoin(tp, ip, 0);
xfs_defer_init(tp, &dfops);
error = xfs_bmapi_write(tp, ip, startoffset_fsb,
allocatesize_fsb, alloc_type, resblks,
imapp, &nimaps);
@ -983,10 +979,6 @@ xfs_alloc_file_space(
/*
* Complete the transaction
*/
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto error0;
error = xfs_trans_commit(tp);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
if (error)
@ -1005,8 +997,7 @@ xfs_alloc_file_space(
return error;
error0: /* Cancel bmap, unlock inode, unreserve quota blocks, cancel trans */
xfs_defer_cancel(&dfops);
error0: /* unlock inode, unreserve quota blocks, cancel trans */
xfs_trans_unreserve_quota_nblks(tp, ip, (long)qblocks, 0, quota_flag);
error1: /* Just cancel transaction */
@ -1024,7 +1015,6 @@ xfs_unmap_extent(
{
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
struct xfs_defer_ops dfops;
uint resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
int error;
@ -1042,23 +1032,17 @@ xfs_unmap_extent(
xfs_trans_ijoin(tp, ip, 0);
xfs_defer_init(tp, &dfops);
error = xfs_bunmapi(tp, ip, startoffset_fsb, len_fsb, 0, 2, done);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
xfs_defer_ijoin(tp->t_dfops, ip);
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
out_unlock:
xfs_iunlock(ip, XFS_ILOCK_EXCL);
return error;
out_bmap_cancel:
xfs_defer_cancel(tp->t_dfops);
out_trans_cancel:
xfs_trans_cancel(tp);
goto out_unlock;
@ -1310,7 +1294,6 @@ xfs_collapse_file_space(
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
int error;
struct xfs_defer_ops dfops;
xfs_fileoff_t next_fsb = XFS_B_TO_FSB(mp, offset + len);
xfs_fileoff_t shift_fsb = XFS_B_TO_FSB(mp, len);
uint resblks = XFS_DIOSTRAT_SPACE_RES(mp, 0);
@ -1343,22 +1326,16 @@ xfs_collapse_file_space(
goto out_trans_cancel;
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
xfs_defer_init(tp, &dfops);
error = xfs_bmap_collapse_extents(tp, ip, &next_fsb, shift_fsb,
&done);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
}
return error;
out_bmap_cancel:
xfs_defer_cancel(tp->t_dfops);
out_trans_cancel:
xfs_trans_cancel(tp);
return error;
@ -1385,7 +1362,6 @@ xfs_insert_file_space(
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
int error;
struct xfs_defer_ops dfops;
xfs_fileoff_t stop_fsb = XFS_B_TO_FSB(mp, offset);
xfs_fileoff_t next_fsb = NULLFSBLOCK;
xfs_fileoff_t shift_fsb = XFS_B_TO_FSB(mp, len);
@ -1421,22 +1397,17 @@ xfs_insert_file_space(
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
xfs_defer_init(tp, &dfops);
error = xfs_bmap_insert_extents(tp, ip, &next_fsb, shift_fsb,
&done, stop_fsb);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
}
return error;
out_bmap_cancel:
xfs_defer_cancel(tp->t_dfops);
out_trans_cancel:
xfs_trans_cancel(tp);
return error;
}
@ -1607,7 +1578,7 @@ xfs_swap_extent_rmap(
/* Unmap the old blocks in the source file. */
while (tirec.br_blockcount) {
xfs_defer_init(tp, tp->t_dfops);
ASSERT(tp->t_firstblock == NULLFSBLOCK);
trace_xfs_swap_extent_rmap_remap_piece(tip, &tirec);
/* Read extent from the source file */
@ -1831,7 +1802,6 @@ xfs_swap_extents(
{
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
struct xfs_defer_ops dfops;
struct xfs_bstat *sbp = &sxp->sx_stat;
int src_log_flags, target_log_flags;
int error = 0;
@ -1900,7 +1870,6 @@ xfs_swap_extents(
error = xfs_trans_alloc(mp, &M_RES(mp)->tr_write, resblks, 0, 0, &tp);
if (error)
goto out_unlock;
xfs_defer_init(tp, &dfops);
/*
* Lock and join the inodes to the tansaction so that transaction commit

4
fs/xfs/xfs_dquot.c
View file

@ -295,8 +295,6 @@ xfs_dquot_disk_alloc(
trace_xfs_dqalloc(dqp);
xfs_defer_init(tp, tp->t_dfops);
xfs_ilock(quotip, XFS_ILOCK_EXCL);
if (!xfs_this_quota_on(dqp->q_mount, dqp->dq_flags)) {
/*
@ -538,7 +536,6 @@ xfs_qm_dqread_alloc(
struct xfs_buf **bpp)
{
struct xfs_trans *tp;
struct xfs_defer_ops dfops;
struct xfs_buf *bp;
int error;
@ -546,7 +543,6 @@ xfs_qm_dqread_alloc(
XFS_QM_DQALLOC_SPACE_RES(mp), 0, 0, &tp);
if (error)
goto err;
xfs_defer_init(tp, &dfops);
error = xfs_dquot_disk_alloc(&tp, dqp, &bp);
if (error)

79
fs/xfs/xfs_inode.c
View file

@ -1142,7 +1142,6 @@ xfs_create(
struct xfs_inode *ip = NULL;
struct xfs_trans *tp = NULL;
int error;
struct xfs_defer_ops dfops;
bool unlock_dp_on_error = false;
prid_t prid;
struct xfs_dquot *udqp = NULL;
@ -1194,8 +1193,6 @@ xfs_create(
xfs_ilock(dp, XFS_ILOCK_EXCL | XFS_ILOCK_PARENT);
unlock_dp_on_error = true;
xfs_defer_init(tp, &dfops);
/*
* Reserve disk quota and the inode.
*/
@ -1236,11 +1233,11 @@ xfs_create(
if (is_dir) {
error = xfs_dir_init(tp, ip, dp);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
error = xfs_bumplink(tp, dp);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
}
/*
@ -1258,10 +1255,6 @@ xfs_create(
*/
xfs_qm_vop_create_dqattach(tp, ip, udqp, gdqp, pdqp);
error = xfs_defer_finish(&tp, &dfops);
if (error)
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
if (error)
goto out_release_inode;
@ -1273,8 +1266,6 @@ xfs_create(
*ipp = ip;
return 0;
out_bmap_cancel:
xfs_defer_cancel(&dfops);
out_trans_cancel:
xfs_trans_cancel(tp);
out_release_inode:
@ -1399,7 +1390,6 @@ xfs_link(
xfs_mount_t *mp = tdp->i_mount;
xfs_trans_t *tp;
int error;
struct xfs_defer_ops dfops;
int resblks;
trace_xfs_link(tdp, target_name);
@ -1448,8 +1438,6 @@ xfs_link(
goto error_return;
}
xfs_defer_init(tp, &dfops);
/*
* Handle initial link state of O_TMPFILE inode
*/
@ -1478,12 +1466,6 @@ xfs_link(
if (mp->m_flags & (XFS_MOUNT_WSYNC|XFS_MOUNT_DIRSYNC))
xfs_trans_set_sync(tp);
error = xfs_defer_finish(&tp, &dfops);
if (error) {
xfs_defer_cancel(&dfops);
goto error_return;
}
return xfs_trans_commit(tp);
error_return:
@ -1719,7 +1701,6 @@ xfs_inactive_truncate(
{
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
struct xfs_defer_ops dfops;
int error;
error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
@ -1727,8 +1708,6 @@ xfs_inactive_truncate(
ASSERT(XFS_FORCED_SHUTDOWN(mp));
return error;
}
xfs_defer_init(tp, &dfops);
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
@ -1769,7 +1748,6 @@ STATIC int
xfs_inactive_ifree(
struct xfs_inode *ip)
{
struct xfs_defer_ops dfops;
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp;
int error;
@ -1806,7 +1784,6 @@ xfs_inactive_ifree(
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
xfs_defer_init(tp, &dfops);
error = xfs_ifree(tp, ip);
if (error) {
/*
@ -1833,12 +1810,6 @@ xfs_inactive_ifree(
* Just ignore errors at this point. There is nothing we can do except
* to try to keep going. Make sure it's not a silent error.
*/
error = xfs_defer_finish(&tp, &dfops);
if (error) {
xfs_notice(mp, "%s: xfs_defer_finish returned error %d",
__func__, error);
xfs_defer_cancel(&dfops);
}
error = xfs_trans_commit(tp);
if (error)
xfs_notice(mp, "%s: xfs_trans_commit returned error %d",
@ -2569,7 +2540,6 @@ xfs_remove(
xfs_trans_t *tp = NULL;
int is_dir = S_ISDIR(VFS_I(ip)->i_mode);
int error = 0;
struct xfs_defer_ops dfops;
uint resblks;
trace_xfs_remove(dp, name);
@ -2649,11 +2619,10 @@ xfs_remove(
if (error)
goto out_trans_cancel;
xfs_defer_init(tp, &dfops);
error = xfs_dir_removename(tp, dp, name, ip->i_ino, resblks);
if (error) {
ASSERT(error != -ENOENT);
goto out_bmap_cancel;
goto out_trans_cancel;
}
/*
@ -2664,10 +2633,6 @@ xfs_remove(
if (mp->m_flags & (XFS_MOUNT_WSYNC|XFS_MOUNT_DIRSYNC))
xfs_trans_set_sync(tp);
error = xfs_defer_finish(&tp, &dfops);
if (error)
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
if (error)
goto std_return;
@ -2677,8 +2642,6 @@ xfs_remove(
return 0;
out_bmap_cancel:
xfs_defer_cancel(&dfops);
out_trans_cancel:
xfs_trans_cancel(tp);
std_return:
@ -2740,9 +2703,6 @@ static int
xfs_finish_rename(
struct xfs_trans *tp)
{
struct xfs_defer_ops *dfops = tp->t_dfops;
int error;
/*
* If this is a synchronous mount, make sure that the rename transaction
* goes to disk before returning to the user.
@ -2750,13 +2710,6 @@ xfs_finish_rename(
if (tp->t_mountp->m_flags & (XFS_MOUNT_WSYNC|XFS_MOUNT_DIRSYNC))
xfs_trans_set_sync(tp);
error = xfs_defer_finish(&tp, dfops);
if (error) {
xfs_defer_cancel(dfops);
xfs_trans_cancel(tp);
return error;
}
return xfs_trans_commit(tp);
}
@ -2869,7 +2822,6 @@ xfs_cross_rename(
return xfs_finish_rename(tp);
out_trans_abort:
xfs_defer_cancel(tp->t_dfops);
xfs_trans_cancel(tp);
return error;
}
@ -2924,7 +2876,6 @@ xfs_rename(
{
struct xfs_mount *mp = src_dp->i_mount;
struct xfs_trans *tp;
struct xfs_defer_ops dfops;
struct xfs_inode *wip = NULL; /* whiteout inode */
struct xfs_inode *inodes[__XFS_SORT_INODES];
int num_inodes = __XFS_SORT_INODES;
@ -3006,8 +2957,6 @@ xfs_rename(
goto out_trans_cancel;
}
xfs_defer_init(tp, &dfops);
/* RENAME_EXCHANGE is unique from here on. */
if (flags & RENAME_EXCHANGE)
return xfs_cross_rename(tp, src_dp, src_name, src_ip,
@ -3035,7 +2984,7 @@ xfs_rename(
error = xfs_dir_createname(tp, target_dp, target_name,
src_ip->i_ino, spaceres);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
xfs_trans_ichgtime(tp, target_dp,
XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
@ -3043,7 +2992,7 @@ xfs_rename(
if (new_parent && src_is_directory) {
error = xfs_bumplink(tp, target_dp);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
}
} else { /* target_ip != NULL */
/*
@ -3074,7 +3023,7 @@ xfs_rename(
error = xfs_dir_replace(tp, target_dp, target_name,
src_ip->i_ino, spaceres);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
xfs_trans_ichgtime(tp, target_dp,
XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
@ -3085,7 +3034,7 @@ xfs_rename(
*/
error = xfs_droplink(tp, target_ip);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
if (src_is_directory) {
/*
@ -3093,7 +3042,7 @@ xfs_rename(
*/
error = xfs_droplink(tp, target_ip);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
}
} /* target_ip != NULL */
@ -3109,7 +3058,7 @@ xfs_rename(
target_dp->i_ino, spaceres);
ASSERT(error != -EEXIST);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
}
/*
@ -3135,7 +3084,7 @@ xfs_rename(
*/
error = xfs_droplink(tp, src_dp);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
}
/*
@ -3150,7 +3099,7 @@ xfs_rename(
error = xfs_dir_removename(tp, src_dp, src_name, src_ip->i_ino,
spaceres);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
/*
* For whiteouts, we need to bump the link count on the whiteout inode.
@ -3164,10 +3113,10 @@ xfs_rename(
ASSERT(VFS_I(wip)->i_nlink == 0);
error = xfs_bumplink(tp, wip);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
error = xfs_iunlink_remove(tp, wip);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
xfs_trans_log_inode(tp, wip, XFS_ILOG_CORE);
/*
@ -3188,8 +3137,6 @@ xfs_rename(
IRELE(wip);
return error;
out_bmap_cancel:
xfs_defer_cancel(&dfops);
out_trans_cancel:
xfs_trans_cancel(tp);
out_release_wip:

26
fs/xfs/xfs_iomap.c
View file

@ -157,7 +157,6 @@ xfs_iomap_write_direct(
int quota_flag;
int rt;
xfs_trans_t *tp;
struct xfs_defer_ops dfops;
uint qblocks, resblks, resrtextents;
int error;
int lockmode;
@ -253,20 +252,15 @@ xfs_iomap_write_direct(
* From this point onwards we overwrite the imap pointer that the
* caller gave to us.
*/
xfs_defer_init(tp, &dfops);
nimaps = 1;
error = xfs_bmapi_write(tp, ip, offset_fsb, count_fsb,
bmapi_flags, resblks, imap, &nimaps);
if (error)
goto out_bmap_cancel;
goto out_res_cancel;
/*
* Complete the transaction
*/
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
if (error)
goto out_unlock;
@ -286,8 +280,7 @@ xfs_iomap_write_direct(
xfs_iunlock(ip, lockmode);
return error;
out_bmap_cancel:
xfs_defer_cancel(tp->t_dfops);
out_res_cancel:
xfs_trans_unreserve_quota_nblks(tp, ip, (long)qblocks, 0, quota_flag);
out_trans_cancel:
xfs_trans_cancel(tp);
@ -663,7 +656,6 @@ xfs_iomap_write_allocate(
xfs_mount_t *mp = ip->i_mount;
xfs_fileoff_t offset_fsb, last_block;
xfs_fileoff_t end_fsb, map_start_fsb;
struct xfs_defer_ops dfops;
xfs_filblks_t count_fsb;
xfs_trans_t *tp;
int nimaps;
@ -713,8 +705,6 @@ xfs_iomap_write_allocate(
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
xfs_defer_init(tp, &dfops);
/*
* it is possible that the extents have changed since
* we did the read call as we dropped the ilock for a
@ -772,10 +762,6 @@ xfs_iomap_write_allocate(
if (error)
goto trans_cancel;
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto trans_cancel;
error = xfs_trans_commit(tp);
if (error)
goto error0;
@ -806,7 +792,6 @@ xfs_iomap_write_allocate(
}
trans_cancel:
xfs_defer_cancel(tp->t_dfops);
xfs_trans_cancel(tp);
error0:
xfs_iunlock(ip, XFS_ILOCK_EXCL);
@ -827,7 +812,6 @@ xfs_iomap_write_unwritten(
int nimaps;
xfs_trans_t *tp;
xfs_bmbt_irec_t imap;
struct xfs_defer_ops dfops;
struct inode *inode = VFS_I(ip);
xfs_fsize_t i_size;
uint resblks;
@ -872,7 +856,6 @@ xfs_iomap_write_unwritten(
/*
* Modify the unwritten extent state of the buffer.
*/
xfs_defer_init(tp, &dfops);
nimaps = 1;
error = xfs_bmapi_write(tp, ip, offset_fsb, count_fsb,
XFS_BMAPI_CONVERT, resblks, &imap,
@ -896,10 +879,6 @@ xfs_iomap_write_unwritten(
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
}
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto error_on_bmapi_transaction;
error = xfs_trans_commit(tp);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
if (error)
@ -923,7 +902,6 @@ xfs_iomap_write_unwritten(
return 0;
error_on_bmapi_transaction:
xfs_defer_cancel(tp->t_dfops);
xfs_trans_cancel(tp);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
return error;

2
fs/xfs/xfs_iops.c
View file

@ -813,7 +813,6 @@ xfs_setattr_size(
struct inode *inode = VFS_I(ip);
xfs_off_t oldsize, newsize;
struct xfs_trans *tp;
struct xfs_defer_ops dfops;
int error;
uint lock_flags = 0;
bool did_zeroing = false;
@ -917,7 +916,6 @@ xfs_setattr_size(
error = xfs_trans_alloc(mp, &M_RES(mp)->tr_itruncate, 0, 0, 0, &tp);
if (error)
return error;
xfs_defer_init(tp, &dfops);
lock_flags |= XFS_ILOCK_EXCL;
xfs_ilock(ip, XFS_ILOCK_EXCL);

8
fs/xfs/xfs_log_recover.c
View file

@ -4857,15 +4857,7 @@ xlog_finish_defer_ops(
/* transfer all collected dfops to this transaction */
xfs_defer_move(tp->t_dfops, dfops);
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_cancel;
return xfs_trans_commit(tp);
out_cancel:
xfs_trans_cancel(tp);
return error;
}
/*

2
fs/xfs/xfs_qm_syscalls.c
View file

@ -214,7 +214,6 @@ xfs_qm_scall_trunc_qfile(
{
struct xfs_inode *ip;
struct xfs_trans *tp;
struct xfs_defer_ops dfops;
int error;
if (ino == NULLFSINO)
@ -231,7 +230,6 @@ xfs_qm_scall_trunc_qfile(
xfs_iunlock(ip, XFS_IOLOCK_EXCL);
goto out_put;
}
xfs_defer_init(tp, &dfops);
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);

37
fs/xfs/xfs_reflink.c
View file

@ -364,7 +364,6 @@ xfs_reflink_allocate_cow(
xfs_fileoff_t offset_fsb = imap->br_startoff;
xfs_filblks_t count_fsb = imap->br_blockcount;
struct xfs_bmbt_irec got;
struct xfs_defer_ops dfops;
struct xfs_trans *tp = NULL;
int nimaps, error = 0;
bool trimmed;
@ -424,7 +423,6 @@ xfs_reflink_allocate_cow(
xfs_trans_ijoin(tp, ip, 0);
xfs_defer_init(tp, &dfops);
nimaps = 1;
/* Allocate the entire reservation as unwritten blocks. */
@ -432,15 +430,11 @@ xfs_reflink_allocate_cow(
XFS_BMAPI_COWFORK | XFS_BMAPI_PREALLOC,
resblks, imap, &nimaps);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
xfs_inode_set_cowblocks_tag(ip);
/* Finish up. */
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
if (error)
return error;
@ -453,8 +447,7 @@ xfs_reflink_allocate_cow(
return -ENOSPC;
convert:
return xfs_reflink_convert_cow_extent(ip, imap, offset_fsb, count_fsb);
out_bmap_cancel:
xfs_defer_cancel(tp->t_dfops);
out_trans_cancel:
xfs_trans_unreserve_quota_nblks(tp, ip, (long)resblks, 0,
XFS_QMOPT_RES_REGBLKS);
out:
@ -624,7 +617,6 @@ xfs_reflink_end_cow(
struct xfs_trans *tp;
xfs_fileoff_t offset_fsb;
xfs_fileoff_t end_fsb;
struct xfs_defer_ops dfops;
int error;
unsigned int resblks;
xfs_filblks_t rlen;
@ -691,11 +683,11 @@ xfs_reflink_end_cow(
goto prev_extent;
/* Unmap the old blocks in the data fork. */
xfs_defer_init(tp, &dfops);
ASSERT(tp->t_dfops && tp->t_firstblock == NULLFSBLOCK);
rlen = del.br_blockcount;
error = __xfs_bunmapi(tp, ip, del.br_startoff, &rlen, 0, 1);
if (error)
goto out_defer;
goto out_cancel;
/* Trim the extent to whatever got unmapped. */
if (rlen) {
@ -708,13 +700,13 @@ xfs_reflink_end_cow(
error = xfs_refcount_free_cow_extent(tp->t_mountp, tp->t_dfops,
del.br_startblock, del.br_blockcount);
if (error)
goto out_defer;
goto out_cancel;
/* Map the new blocks into the data fork. */
error = xfs_bmap_map_extent(tp->t_mountp, tp->t_dfops, ip,
&del);
if (error)
goto out_defer;
goto out_cancel;
/* Charge this new data fork mapping to the on-disk quota. */
xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_DELBCOUNT,
@ -726,7 +718,7 @@ xfs_reflink_end_cow(
xfs_defer_ijoin(tp->t_dfops, ip);
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_defer;
goto out_cancel;
if (!xfs_iext_get_extent(ifp, &icur, &got))
break;
continue;
@ -741,8 +733,6 @@ xfs_reflink_end_cow(
goto out;
return 0;
out_defer:
xfs_defer_cancel(tp->t_dfops);
out_cancel:
xfs_trans_cancel(tp);
xfs_iunlock(ip, XFS_ILOCK_EXCL);
@ -998,7 +988,6 @@ xfs_reflink_remap_extent(
bool real_extent = xfs_bmap_is_real_extent(irec);
struct xfs_trans *tp;
unsigned int resblks;
struct xfs_defer_ops dfops;
struct xfs_bmbt_irec uirec;
xfs_filblks_t rlen;
xfs_filblks_t unmap_len;
@ -1039,10 +1028,10 @@ xfs_reflink_remap_extent(
/* Unmap the old blocks in the data fork. */
rlen = unmap_len;
while (rlen) {
xfs_defer_init(tp, &dfops);
ASSERT(tp->t_dfops && tp->t_firstblock == NULLFSBLOCK);
error = __xfs_bunmapi(tp, ip, destoff, &rlen, 0, 1);
if (error)
goto out_defer;
goto out_cancel;
/*
* Trim the extent to whatever got unmapped.
@ -1063,12 +1052,12 @@ xfs_reflink_remap_extent(
/* Update the refcount tree */
error = xfs_refcount_increase_extent(mp, tp->t_dfops, &uirec);
if (error)
goto out_defer;
goto out_cancel;
/* Map the new blocks into the data fork. */
error = xfs_bmap_map_extent(mp, tp->t_dfops, ip, &uirec);
if (error)
goto out_defer;
goto out_cancel;
/* Update quota accounting. */
xfs_trans_mod_dquot_byino(tp, ip, XFS_TRANS_DQ_BCOUNT,
@ -1090,7 +1079,7 @@ xfs_reflink_remap_extent(
xfs_defer_ijoin(tp->t_dfops, ip);
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_defer;
goto out_cancel;
}
error = xfs_trans_commit(tp);
@ -1099,8 +1088,6 @@ xfs_reflink_remap_extent(
goto out;
return 0;
out_defer:
xfs_defer_cancel(tp->t_dfops);
out_cancel:
xfs_trans_cancel(tp);
xfs_iunlock(ip, XFS_ILOCK_EXCL);

9
fs/xfs/xfs_rtalloc.c
View file

@ -761,7 +761,6 @@ xfs_growfs_rt_alloc(
struct xfs_buf *bp; /* temporary buffer for zeroing */
xfs_daddr_t d; /* disk block address */
int error; /* error return value */
struct xfs_defer_ops dfops; /* list of freed blocks */
xfs_fsblock_t fsbno; /* filesystem block for bno */
struct xfs_bmbt_irec map; /* block map output */
int nmap; /* number of block maps */
@ -786,7 +785,6 @@ xfs_growfs_rt_alloc(
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
xfs_defer_init(tp, &dfops);
/*
* Allocate blocks to the bitmap file.
*/
@ -797,13 +795,10 @@ xfs_growfs_rt_alloc(
if (!error && nmap < 1)
error = -ENOSPC;
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
/*
* Free any blocks freed up in the transaction, then commit.
*/
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
if (error)
return error;
@ -853,8 +848,6 @@ xfs_growfs_rt_alloc(
return 0;
out_bmap_cancel:
xfs_defer_cancel(tp->t_dfops);
out_trans_cancel:
xfs_trans_cancel(tp);
return error;

38
fs/xfs/xfs_symlink.c
View file

@ -163,7 +163,6 @@ xfs_symlink(
struct xfs_inode *ip = NULL;
int error = 0;
int pathlen;
struct xfs_defer_ops dfops;
bool unlock_dp_on_error = false;
xfs_fileoff_t first_fsb;
xfs_filblks_t fs_blocks;
@ -241,12 +240,6 @@ xfs_symlink(
if (error)
goto out_trans_cancel;
/*
* Initialize the bmap freelist prior to calling either
* bmapi or the directory create code.
*/
xfs_defer_init(tp, &dfops);
/*
* Allocate an inode for the symlink.
*/
@ -290,7 +283,7 @@ xfs_symlink(
error = xfs_bmapi_write(tp, ip, first_fsb, fs_blocks,
XFS_BMAPI_METADATA, resblks, mval, &nmaps);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
if (resblks)
resblks -= fs_blocks;
@ -308,7 +301,7 @@ xfs_symlink(
BTOBB(byte_cnt), 0);
if (!bp) {
error = -ENOMEM;
goto out_bmap_cancel;
goto out_trans_cancel;
}
bp->b_ops = &xfs_symlink_buf_ops;
@ -337,7 +330,7 @@ xfs_symlink(
*/
error = xfs_dir_createname(tp, dp, link_name, ip->i_ino, resblks);
if (error)
goto out_bmap_cancel;
goto out_trans_cancel;
xfs_trans_ichgtime(tp, dp, XFS_ICHGTIME_MOD | XFS_ICHGTIME_CHG);
xfs_trans_log_inode(tp, dp, XFS_ILOG_CORE);
@ -350,10 +343,6 @@ xfs_symlink(
xfs_trans_set_sync(tp);
}
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto out_bmap_cancel;
error = xfs_trans_commit(tp);
if (error)
goto out_release_inode;
@ -365,8 +354,6 @@ xfs_symlink(
*ipp = ip;
return 0;
out_bmap_cancel:
xfs_defer_cancel(tp->t_dfops);
out_trans_cancel:
xfs_trans_cancel(tp);
out_release_inode:
@ -399,7 +386,6 @@ xfs_inactive_symlink_rmt(
xfs_buf_t *bp;
int done;
int error;
struct xfs_defer_ops dfops;
int i;
xfs_mount_t *mp;
xfs_bmbt_irec_t mval[XFS_SYMLINK_MAPS];
@ -438,7 +424,6 @@ xfs_inactive_symlink_rmt(
* Find the block(s) so we can inval and unmap them.
*/
done = 0;
xfs_defer_init(tp, &dfops);
nmaps = ARRAY_SIZE(mval);
error = xfs_bmapi_read(ip, 0, xfs_symlink_blocks(mp, size),
mval, &nmaps, 0);
@ -453,7 +438,7 @@ xfs_inactive_symlink_rmt(
XFS_FSB_TO_BB(mp, mval[i].br_blockcount), 0);
if (!bp) {
error = -ENOMEM;
goto error_bmap_cancel;
goto error_trans_cancel;
}
xfs_trans_binval(tp, bp);
}
@ -462,19 +447,14 @@ xfs_inactive_symlink_rmt(
*/
error = xfs_bunmapi(tp, ip, 0, size, 0, nmaps, &done);
if (error)
goto error_bmap_cancel;
goto error_trans_cancel;
ASSERT(done);
/*
* Commit the first transaction. This logs the EFI and the inode.
*/
xfs_defer_ijoin(tp->t_dfops, ip);
error = xfs_defer_finish(&tp, tp->t_dfops);
if (error)
goto error_bmap_cancel;
/*
* Commit the transaction containing extent freeing and EFDs.
* Commit the transaction. This first logs the EFI and the inode, then
* rolls and commits the transaction that frees the extents.
*/
xfs_defer_ijoin(tp->t_dfops, ip);
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
error = xfs_trans_commit(tp);
if (error) {
@ -492,8 +472,6 @@ xfs_inactive_symlink_rmt(
xfs_iunlock(ip, XFS_ILOCK_EXCL);
return 0;
error_bmap_cancel:
xfs_defer_cancel(tp->t_dfops);
error_trans_cancel:
xfs_trans_cancel(tp);
error_unlock: