microsoft
/
WSL2-Linux-Kernel
зеркало из https://github.com/microsoft/WSL2-Linux-Kernel.git
1
0
Форкнуть 0
Код Задачи Пакеты Проекты Релизы Вики Активность

xfs: remove xfs_defer_init() firstblock param 

All but one caller of xfs_defer_init() passes in the ->t_firstblock
of the associated transaction. The one outlier is
xlog_recover_process_intents(), which simply passes a dummy value
because a valid pointer is required. This firstblock variable can
simply be removed.

At this point we could remove the xfs_defer_init() firstblock
parameter and initialize ->t_firstblock directly. Even that is not
necessary, however, because ->t_firstblock is automatically
reinitialized in the new transaction on a transaction roll. Since
xfs_defer_init() should never occur more than once on a particular
transaction (since the corresponding finish will roll it), replace
the reinit from xfs_defer_init() with an assert that verifies the
transaction has a NULLFSBLOCK firstblock.

Signed-off-by: Brian Foster <bfoster@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 2018-07-11 22:26:33 -07:00 коммит произвёл Darrick J. Wong
Родитель 9c3bf5da80
Коммит 5fdd97944e
14 изменённых файлов: 44 добавлений и 58 удалений
Показать статистику Скачать Patch файл Скачать Diff файл Показать все файлы Свернуть все файлы

28
fs/xfs/libxfs/xfs_attr.c
Просмотреть файл

@ -251,7 +251,7 @@ xfs_attr_set(
rsvd ? XFS_TRANS_RESERVE : 0, &args.trans);
if (error)
return error;
xfs_defer_init(args.trans, &dfops, &args.trans->t_firstblock);
xfs_defer_init(args.trans, &dfops);
xfs_ilock(dp, XFS_ILOCK_EXCL);
error = xfs_trans_reserve_quota_nblks(args.trans, dp, args.total, 0,
@ -422,7 +422,7 @@ xfs_attr_remove(
&args.trans);
if (error)
return error;
xfs_defer_init(args.trans, &dfops, &args.trans->t_firstblock);
xfs_defer_init(args.trans, &dfops);
xfs_ilock(dp, XFS_ILOCK_EXCL);
/*
@ -593,8 +593,7 @@ xfs_attr_leaf_addname(
* Commit that transaction so that the node_addname() call
* can manage its own transactions.
*/
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
error = xfs_attr3_leaf_to_node(args);
if (error)
goto out_defer_cancel;
@ -683,8 +682,7 @@ xfs_attr_leaf_addname(
* If the result is small enough, shrink it all into the inode.
*/
if ((forkoff = xfs_attr_shortform_allfit(bp, dp))) {
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
error = xfs_attr3_leaf_to_shortform(bp, args, forkoff);
/* bp is gone due to xfs_da_shrink_inode */
if (error)
@ -749,8 +747,7 @@ xfs_attr_leaf_removename(
* If the result is small enough, shrink it all into the inode.
*/
if ((forkoff = xfs_attr_shortform_allfit(bp, dp))) {
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
error = xfs_attr3_leaf_to_shortform(bp, args, forkoff);
/* bp is gone due to xfs_da_shrink_inode */
if (error)
@ -879,8 +876,7 @@ restart:
*/
xfs_da_state_free(state);
state = NULL;
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
error = xfs_attr3_leaf_to_node(args);
if (error)
goto out_defer_cancel;
@ -907,8 +903,7 @@ restart:
* in the index/blkno/rmtblkno/rmtblkcnt fields and
* in the index2/blkno2/rmtblkno2/rmtblkcnt2 fields.
*/
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
error = xfs_da3_split(state);
if (error)
goto out_defer_cancel;
@ -1006,8 +1001,7 @@ restart:
* Check to see if the tree needs to be collapsed.
*/
if (retval && (state->path.active > 1)) {
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
error = xfs_da3_join(state);
if (error)
goto out_defer_cancel;
@ -1132,8 +1126,7 @@ xfs_attr_node_removename(
* Check to see if the tree needs to be collapsed.
*/
if (retval && (state->path.active > 1)) {
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
error = xfs_da3_join(state);
if (error)
goto out_defer_cancel;
@ -1165,8 +1158,7 @@ xfs_attr_node_removename(
goto out;
if ((forkoff = xfs_attr_shortform_allfit(bp, dp))) {
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
error = xfs_attr3_leaf_to_shortform(bp, args, forkoff);
/* bp is gone due to xfs_da_shrink_inode */
if (error)

9
fs/xfs/libxfs/xfs_attr_remote.c
Просмотреть файл

@ -480,8 +480,7 @@ xfs_attr_rmtval_set(
* extent and then crash then the block may not contain the
* correct metadata after log recovery occurs.
*/
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
nmap = 1;
error = xfs_bmapi_write(args->trans, dp, (xfs_fileoff_t)lblkno,
blkcnt, XFS_BMAPI_ATTRFORK, args->total, &map,
@ -523,8 +522,7 @@ xfs_attr_rmtval_set(
ASSERT(blkcnt > 0);
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
nmap = 1;
error = xfs_bmapi_read(dp, (xfs_fileoff_t)lblkno,
blkcnt, &map, &nmap,
@ -628,8 +626,7 @@ xfs_attr_rmtval_remove(
blkcnt = args->rmtblkcnt;
done = 0;
while (!done) {
xfs_defer_init(args->trans, args->trans->t_dfops,
&args->trans->t_firstblock);
xfs_defer_init(args->trans, args->trans->t_dfops);
error = xfs_bunmapi(args->trans, args->dp, lblkno, blkcnt,
XFS_BMAPI_ATTRFORK, 1, &done);
if (error)

4
fs/xfs/libxfs/xfs_bmap.c
Просмотреть файл

@ -1038,7 +1038,7 @@ xfs_bmap_add_attrfork(
rsvd ? XFS_TRANS_RESERVE : 0, &tp);
if (error)
return error;
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
xfs_ilock(ip, XFS_ILOCK_EXCL);
error = xfs_trans_reserve_quota_nblks(tp, ip, blks, 0, rsvd ?
@ -5968,7 +5968,7 @@ xfs_bmap_split_extent(
XFS_DIOSTRAT_SPACE_RES(mp, 0), 0, 0, &tp);
if (error)
return error;
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);

5
fs/xfs/libxfs/xfs_defer.c
Просмотреть файл

@ -524,16 +524,15 @@ xfs_defer_init_op_type(
void
xfs_defer_init(
struct xfs_trans *tp,
struct xfs_defer_ops *dop,
xfs_fsblock_t *fbp)
struct xfs_defer_ops *dop)
{
struct xfs_mount *mp = NULL;
memset(dop, 0, sizeof(struct xfs_defer_ops));
*fbp = NULLFSBLOCK;
INIT_LIST_HEAD(&dop->dop_intake);
INIT_LIST_HEAD(&dop->dop_pending);
if (tp) {
ASSERT(tp->t_firstblock == NULLFSBLOCK);
tp->t_dfops = dop;
mp = tp->t_mountp;
}

3
fs/xfs/libxfs/xfs_defer.h
Просмотреть файл

@ -63,8 +63,7 @@ void xfs_defer_add(struct xfs_defer_ops *dop, enum xfs_defer_ops_type type,
struct list_head *h);
int xfs_defer_finish(struct xfs_trans **tp, struct xfs_defer_ops *dop);
void xfs_defer_cancel(struct xfs_defer_ops *dop);
void xfs_defer_init(struct xfs_trans *tp, struct xfs_defer_ops *dop,
xfs_fsblock_t *fbp);
void xfs_defer_init(struct xfs_trans *tp, struct xfs_defer_ops *dop);
bool xfs_defer_has_unfinished_work(struct xfs_defer_ops *dop);
int xfs_defer_ijoin(struct xfs_defer_ops *dop, struct xfs_inode *ip);
int xfs_defer_bjoin(struct xfs_defer_ops *dop, struct xfs_buf *bp);

2
fs/xfs/libxfs/xfs_refcount.c
Просмотреть файл

@ -1691,7 +1691,7 @@ xfs_refcount_recover_cow_leftovers(
trace_xfs_refcount_recover_extent(mp, agno, &rr->rr_rrec);
/* Free the orphan record */
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
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,

12
fs/xfs/xfs_bmap_util.c
Просмотреть файл

@ -971,7 +971,7 @@ xfs_alloc_file_space(
xfs_trans_ijoin(tp, ip, 0);
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
error = xfs_bmapi_write(tp, ip, startoffset_fsb,
allocatesize_fsb, alloc_type, resblks,
imapp, &nimaps);
@ -1040,7 +1040,7 @@ xfs_unmap_extent(
xfs_trans_ijoin(tp, ip, 0);
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
error = xfs_bunmapi(tp, ip, startoffset_fsb, len_fsb, 0, 2, done);
if (error)
goto out_bmap_cancel;
@ -1341,7 +1341,7 @@ xfs_collapse_file_space(
goto out_trans_cancel;
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
error = xfs_bmap_collapse_extents(tp, ip, &next_fsb, shift_fsb,
&done);
if (error)
@ -1419,7 +1419,7 @@ xfs_insert_file_space(
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
error = xfs_bmap_insert_extents(tp, ip, &next_fsb, shift_fsb,
&done, stop_fsb);
if (error)
@ -1605,7 +1605,7 @@ xfs_swap_extent_rmap(
/* Unmap the old blocks in the source file. */
while (tirec.br_blockcount) {
xfs_defer_init(tp, tp->t_dfops, &tp->t_firstblock);
xfs_defer_init(tp, tp->t_dfops);
trace_xfs_swap_extent_rmap_remap_piece(tip, &tirec);
/* Read extent from the source file */
@ -1909,7 +1909,7 @@ 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, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
/*
* Lock and join the inodes to the tansaction so that transaction commit

4
fs/xfs/xfs_dquot.c
Просмотреть файл

@ -295,7 +295,7 @@ xfs_dquot_disk_alloc(
trace_xfs_dqalloc(dqp);
xfs_defer_init(tp, tp->t_dfops, &tp->t_firstblock);
xfs_defer_init(tp, tp->t_dfops);
xfs_ilock(quotip, XFS_ILOCK_EXCL);
if (!xfs_this_quota_on(dqp->q_mount, dqp->dq_flags)) {
@ -546,7 +546,7 @@ xfs_qm_dqread_alloc(
XFS_QM_DQALLOC_SPACE_RES(mp), 0, 0, &tp);
if (error)
goto err;
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
error = xfs_dquot_disk_alloc(&tp, dqp, &bp);
if (error)

12
fs/xfs/xfs_inode.c
Просмотреть файл

@ -1194,7 +1194,7 @@ xfs_create(
xfs_ilock(dp, XFS_ILOCK_EXCL | XFS_ILOCK_PARENT);
unlock_dp_on_error = true;
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
/*
* Reserve disk quota and the inode.
@ -1448,7 +1448,7 @@ xfs_link(
goto error_return;
}
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
/*
* Handle initial link state of O_TMPFILE inode
@ -1579,7 +1579,7 @@ xfs_itruncate_extents_flags(
ASSERT(first_unmap_block < last_block);
unmap_len = last_block - first_unmap_block + 1;
while (!done) {
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
error = xfs_bunmapi(tp, ip, first_unmap_block, unmap_len, flags,
XFS_ITRUNC_MAX_EXTENTS, &done);
if (error)
@ -1808,7 +1808,7 @@ xfs_inactive_ifree(
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
error = xfs_ifree(tp, ip);
if (error) {
/*
@ -2651,7 +2651,7 @@ xfs_remove(
if (error)
goto out_trans_cancel;
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
error = xfs_dir_removename(tp, dp, name, ip->i_ino, resblks);
if (error) {
ASSERT(error != -ENOENT);
@ -3008,7 +3008,7 @@ xfs_rename(
goto out_trans_cancel;
}
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
/* RENAME_EXCHANGE is unique from here on. */
if (flags & RENAME_EXCHANGE)

6
fs/xfs/xfs_iomap.c
Просмотреть файл

@ -253,7 +253,7 @@ xfs_iomap_write_direct(
* From this point onwards we overwrite the imap pointer that the
* caller gave to us.
*/
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
nimaps = 1;
error = xfs_bmapi_write(tp, ip, offset_fsb, count_fsb,
bmapi_flags, resblks, imap, &nimaps);
@ -713,7 +713,7 @@ xfs_iomap_write_allocate(
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, 0);
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
/*
* it is possible that the extents have changed since
@ -872,7 +872,7 @@ xfs_iomap_write_unwritten(
/*
* Modify the unwritten extent state of the buffer.
*/
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
nimaps = 1;
error = xfs_bmapi_write(tp, ip, offset_fsb, count_fsb,
XFS_BMAPI_CONVERT, resblks, &imap,

3
fs/xfs/xfs_log_recover.c
Просмотреть файл

@ -4890,7 +4890,6 @@ xlog_recover_process_intents(
struct xfs_ail_cursor cur;
struct xfs_log_item *lip;
struct xfs_ail *ailp;
xfs_fsblock_t firstfsb;
int error = 0;
#if defined(DEBUG) || defined(XFS_WARN)
xfs_lsn_t last_lsn;
@ -4902,7 +4901,7 @@ xlog_recover_process_intents(
#if defined(DEBUG) || defined(XFS_WARN)
last_lsn = xlog_assign_lsn(log->l_curr_cycle, log->l_curr_block);
#endif
xfs_defer_init(NULL, &dfops, &firstfsb);
xfs_defer_init(NULL, &dfops);
while (lip != NULL) {
/*
* We're done when we see something other than an intent.

8
fs/xfs/xfs_reflink.c
Просмотреть файл

@ -424,7 +424,7 @@ retry:
xfs_trans_ijoin(tp, ip, 0);
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
nimaps = 1;
/* Allocate the entire reservation as unwritten blocks. */
@ -511,7 +511,7 @@ xfs_reflink_cancel_cow_blocks(
if (error)
break;
} else if (del.br_state == XFS_EXT_UNWRITTEN || cancel_real) {
xfs_defer_init(*tpp, &dfops, &(*tpp)->t_firstblock);
xfs_defer_init(*tpp, &dfops);
/* Free the CoW orphan record. */
error = xfs_refcount_free_cow_extent(ip->i_mount,
@ -693,7 +693,7 @@ xfs_reflink_end_cow(
goto prev_extent;
/* Unmap the old blocks in the data fork. */
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
rlen = del.br_blockcount;
error = __xfs_bunmapi(tp, ip, del.br_startoff, &rlen, 0, 1);
if (error)
@ -1041,7 +1041,7 @@ xfs_reflink_remap_extent(
/* Unmap the old blocks in the data fork. */
rlen = unmap_len;
while (rlen) {
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
error = __xfs_bunmapi(tp, ip, destoff, &rlen, 0, 1);
if (error)
goto out_defer;

2
fs/xfs/xfs_rtalloc.c
Просмотреть файл

@ -786,7 +786,7 @@ xfs_growfs_rt_alloc(
xfs_ilock(ip, XFS_ILOCK_EXCL);
xfs_trans_ijoin(tp, ip, XFS_ILOCK_EXCL);
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
/*
* Allocate blocks to the bitmap file.
*/

4
fs/xfs/xfs_symlink.c
Просмотреть файл

@ -245,7 +245,7 @@ xfs_symlink(
* Initialize the bmap freelist prior to calling either
* bmapi or the directory create code.
*/
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
/*
* Allocate an inode for the symlink.
@ -438,7 +438,7 @@ xfs_inactive_symlink_rmt(
* Find the block(s) so we can inval and unmap them.
*/
done = 0;
xfs_defer_init(tp, &dfops, &tp->t_firstblock);
xfs_defer_init(tp, &dfops);
nmaps = ARRAY_SIZE(mval);
error = xfs_bmapi_read(ip, 0, xfs_symlink_blocks(mp, size),
mval, &nmaps, 0);