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xfs: switch remaining xfs_trans_dup users to xfs_trans_roll

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We have three remaining callers of xfs_trans_dup:

 - xfs_itruncate_extents which open codes xfs_trans_roll
 - xfs_bmap_finish doesn't have an xfs_inode argument and thus leaves
   attaching them to it's callers, but otherwise is identical to
   xfs_trans_roll
 - xfs_dir_ialloc looks at the log reservations in the old xfs_trans
   structure instead of the log reservation parameters, but otherwise
   is identical to xfs_trans_roll.

By allowing a NULL xfs_inode argument to xfs_trans_roll we can switch
these three remaining users over to xfs_trans_roll and mark xfs_trans_dup
static.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Signed-off-by: Dave Chinner <david@fromorbit.com>
This commit is contained in:
Christoph Hellwig 2015-06-04 13:47:29 +10:00 committed by Dave Chinner
parent 5ebe6afaf0
commit 2e6db6c4c1
4 changed files with 16 additions and 92 deletions
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31
fs/xfs/xfs_bmap_util.c
View File

@ -75,28 +75,20 @@ xfs_bmap_finish(
xfs_efi_log_item_t *efi; /* extent free intention */
int error; /* error return value */
xfs_bmap_free_item_t *free; /* free extent item */
struct xfs_trans_res tres; /* new log reservation */
xfs_mount_t *mp; /* filesystem mount structure */
xfs_bmap_free_item_t *next; /* next item on free list */
xfs_trans_t *ntp; /* new transaction pointer */
ASSERT((*tp)->t_flags & XFS_TRANS_PERM_LOG_RES);
if (flist->xbf_count == 0) {
*committed = 0;
return 0;
}
ntp = *tp;
efi = xfs_trans_get_efi(ntp, flist->xbf_count);
efi = xfs_trans_get_efi(*tp, flist->xbf_count);
for (free = flist->xbf_first; free; free = free->xbfi_next)
xfs_trans_log_efi_extent(ntp, efi, free->xbfi_startblock,
xfs_trans_log_efi_extent(*tp, efi, free->xbfi_startblock,
free->xbfi_blockcount);
tres.tr_logres = ntp->t_log_res;
tres.tr_logcount = ntp->t_log_count;
tres.tr_logflags = XFS_TRANS_PERM_LOG_RES;
ntp = xfs_trans_dup(*tp);
error = xfs_trans_commit(*tp, 0);
*tp = ntp;
error = xfs_trans_roll(tp, NULL);
*committed = 1;
/*
* We have a new transaction, so we should return committed=1,
@ -105,19 +97,10 @@ xfs_bmap_finish(
if (error)
return error;
/*
* transaction commit worked ok so we can drop the extra ticket
* reference that we gained in xfs_trans_dup()
*/
xfs_log_ticket_put(ntp->t_ticket);
error = xfs_trans_reserve(ntp, &tres, 0, 0);
if (error)
return error;
efd = xfs_trans_get_efd(ntp, efi, flist->xbf_count);
efd = xfs_trans_get_efd(*tp, efi, flist->xbf_count);
for (free = flist->xbf_first; free != NULL; free = next) {
next = free->xbfi_next;
if ((error = xfs_free_extent(ntp, free->xbfi_startblock,
if ((error = xfs_free_extent(*tp, free->xbfi_startblock,
free->xbfi_blockcount))) {
/*
* The bmap free list will be cleaned up at a
@ -127,7 +110,7 @@ xfs_bmap_finish(
* happens, since this transaction may not be
* dirty yet.
*/
mp = ntp->t_mountp;
mp = (*tp)->t_mountp;
if (!XFS_FORCED_SHUTDOWN(mp))
xfs_force_shutdown(mp,
(error == -EFSCORRUPTED) ?
@ -135,7 +118,7 @@ xfs_bmap_finish(
SHUTDOWN_META_IO_ERROR);
return error;
}
xfs_trans_log_efd_extent(ntp, efd, free->xbfi_startblock,
xfs_trans_log_efd_extent(*tp, efd, free->xbfi_startblock,
free->xbfi_blockcount);
xfs_bmap_del_free(flist, NULL, free);
}

66
fs/xfs/xfs_inode.c
View File

@ -905,7 +905,6 @@ xfs_dir_ialloc(
{
xfs_trans_t *tp;
xfs_trans_t *ntp;
xfs_inode_t *ip;
xfs_buf_t *ialloc_context = NULL;
int code;
@ -954,8 +953,6 @@ xfs_dir_ialloc(
* to succeed the second time.
*/
if (ialloc_context) {
struct xfs_trans_res tres;
/*
* Normally, xfs_trans_commit releases all the locks.
* We call bhold to hang on to the ialloc_context across
@ -964,12 +961,6 @@ xfs_dir_ialloc(
* allocation group.
*/
xfs_trans_bhold(tp, ialloc_context);
/*
* Save the log reservation so we can use
* them in the next transaction.
*/
tres.tr_logres = xfs_trans_get_log_res(tp);
tres.tr_logcount = xfs_trans_get_log_count(tp);
/*
* We want the quota changes to be associated with the next
@ -985,35 +976,9 @@ xfs_dir_ialloc(
tp->t_flags &= ~(XFS_TRANS_DQ_DIRTY);
}
ntp = xfs_trans_dup(tp);
code = xfs_trans_commit(tp, 0);
tp = ntp;
if (committed != NULL) {
code = xfs_trans_roll(&tp, 0);
if (committed != NULL)
*committed = 1;
}
/*
* If we get an error during the commit processing,
* release the buffer that is still held and return
* to the caller.
*/
if (code) {
xfs_buf_relse(ialloc_context);
if (dqinfo) {
tp->t_dqinfo = dqinfo;
xfs_trans_free_dqinfo(tp);
}
*tpp = ntp;
*ipp = NULL;
return code;
}
/*
* transaction commit worked ok so we can drop the extra ticket
* reference that we gained in xfs_trans_dup()
*/
xfs_log_ticket_put(tp->t_ticket);
tres.tr_logflags = XFS_TRANS_PERM_LOG_RES;
code = xfs_trans_reserve(tp, &tres, 0, 0);
/*
* Re-attach the quota info that we detached from prev trx.
@ -1025,7 +990,7 @@ xfs_dir_ialloc(
if (code) {
xfs_buf_relse(ialloc_context);
*tpp = ntp;
*tpp = tp;
*ipp = NULL;
return code;
}
@ -1555,7 +1520,6 @@ xfs_itruncate_extents(
{
struct xfs_mount *mp = ip->i_mount;
struct xfs_trans *tp = *tpp;
struct xfs_trans *ntp;
xfs_bmap_free_t free_list;
xfs_fsblock_t first_block;
xfs_fileoff_t first_unmap_block;
@ -1613,29 +1577,7 @@ xfs_itruncate_extents(
if (error)
goto out_bmap_cancel;
if (committed) {
/*
* Mark the inode dirty so it will be logged and
* moved forward in the log as part of every commit.
*/
xfs_trans_log_inode(tp, ip, XFS_ILOG_CORE);
}
ntp = xfs_trans_dup(tp);
error = xfs_trans_commit(tp, 0);
tp = ntp;
xfs_trans_ijoin(tp, ip, 0);
if (error)
goto out;
/*
* Transaction commit worked ok so we can drop the extra ticket
* reference that we gained in xfs_trans_dup()
*/
xfs_log_ticket_put(tp->t_ticket);
error = xfs_trans_reserve(tp, &M_RES(mp)->tr_itruncate, 0, 0);
error = xfs_trans_roll(&tp, ip);
if (error)
goto out;
}

8
fs/xfs/xfs_trans.c
View File

@ -113,7 +113,7 @@ xfs_trans_free(
* blocks. Locks and log items, however, are no inherited. They must
* be added to the new transaction explicitly.
*/
xfs_trans_t *
STATIC xfs_trans_t *
xfs_trans_dup(
xfs_trans_t *tp)
{
@ -1055,7 +1055,8 @@ xfs_trans_roll(
* Ensure that the inode is always logged.
*/
trans = *tpp;
xfs_trans_log_inode(trans, dp, XFS_ILOG_CORE);
if (dp)
xfs_trans_log_inode(trans, dp, XFS_ILOG_CORE);
/*
* Copy the critical parameters from one trans to the next.
@ -1100,6 +1101,7 @@ xfs_trans_roll(
if (error)
return error;
xfs_trans_ijoin(trans, dp, 0);
if (dp)
xfs_trans_ijoin(trans, dp, 0);
return 0;
}

3
fs/xfs/xfs_trans.h
View File

@ -133,8 +133,6 @@ typedef struct xfs_trans {
* XFS transaction mechanism exported interfaces that are
* actually macros.
*/
#define xfs_trans_get_log_res(tp) ((tp)->t_log_res)
#define xfs_trans_get_log_count(tp) ((tp)->t_log_count)
#define xfs_trans_get_block_res(tp) ((tp)->t_blk_res)
#define xfs_trans_set_sync(tp) ((tp)->t_flags |= XFS_TRANS_SYNC)
@ -153,7 +151,6 @@ typedef struct xfs_trans {
*/
xfs_trans_t *xfs_trans_alloc(struct xfs_mount *, uint);
xfs_trans_t *_xfs_trans_alloc(struct xfs_mount *, uint, xfs_km_flags_t);
xfs_trans_t *xfs_trans_dup(xfs_trans_t *);
int xfs_trans_reserve(struct xfs_trans *, struct xfs_trans_res *,
uint, uint);
void xfs_trans_mod_sb(xfs_trans_t *, uint, int64_t);