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xfs: fix xfs_log_done interface

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Instead of the confusing flags argument pass a boolean flag to indicate if
we want to release or regrant a log reservation.

Also ensure that xfs_log_done always drop the reference on the log ticket,
to both simplify the code and make the logic in xfs_trans_roll easier
to understand.

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 13:48:20 +10:00
committed by Dave Chinner
parent 70393313dd
commit f78c390107
4 changed files with 11 additions and 52 deletions
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33
fs/xfs/xfs_trans.c
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@@ -251,14 +251,7 @@ xfs_trans_reserve(
*/
undo_log:
if (resp->tr_logres > 0) {
int log_flags;
if (resp->tr_logflags & XFS_TRANS_PERM_LOG_RES) {
log_flags = XFS_LOG_REL_PERM_RESERV;
} else {
log_flags = 0;
}
xfs_log_done(tp->t_mountp, tp->t_ticket, NULL, log_flags);
xfs_log_done(tp->t_mountp, tp->t_ticket, NULL, false);
tp->t_ticket = NULL;
tp->t_log_res = 0;
tp->t_flags &= ~XFS_TRANS_PERM_LOG_RES;
@@ -954,13 +947,7 @@ out_unreserve:
*/
xfs_trans_unreserve_and_mod_dquots(tp);
if (tp->t_ticket) {
int log_flags = 0;
if (regrant)
ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
else
log_flags = XFS_LOG_REL_PERM_RESERV;
commit_lsn = xfs_log_done(mp, tp->t_ticket, NULL, log_flags);
commit_lsn = xfs_log_done(mp, tp->t_ticket, NULL, regrant);
if (commit_lsn == -1 && !error)
error = -EIO;
}
@@ -1014,13 +1001,8 @@ xfs_trans_cancel(
xfs_trans_unreserve_and_mod_sb(tp);
xfs_trans_unreserve_and_mod_dquots(tp);
if (tp->t_ticket) {
uint log_flags = 0;
if (tp->t_flags & XFS_TRANS_PERM_LOG_RES)
log_flags = XFS_LOG_REL_PERM_RESERV;
xfs_log_done(mp, tp->t_ticket, NULL, log_flags);
}
if (tp->t_ticket)
xfs_log_done(mp, tp->t_ticket, NULL, false);
/* mark this thread as no longer being in a transaction */
current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
@@ -1072,13 +1054,6 @@ xfs_trans_roll(
trans = *tpp;
/*
* transaction commit worked ok so we can drop the extra ticket
* reference that we gained in xfs_trans_dup()
*/
xfs_log_ticket_put(trans->t_ticket);
/*
* Reserve space in the log for th next transaction.
* This also pushes items in the "AIL", the list of logged items,