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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-09-08 01:01:14 -0300
commite5fd91f1ef340da553f7a79da9540c3db711c937 (patch)
treeb11842027dc6641da63f4bcc524f8678263304a3 /fs/xfs/xfs_trans.c
parent2a9b0348e685a63d97486f6749622b61e9e3292f (diff)
Linux-libre 4.2-gnu
Diffstat (limited to 'fs/xfs/xfs_trans.c')
-rw-r--r--fs/xfs/xfs_trans.c91
1 files changed, 31 insertions, 60 deletions
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index 220ef2c90..0582a2710 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -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)
{
@@ -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;
@@ -744,7 +737,7 @@ void
xfs_trans_free_items(
struct xfs_trans *tp,
xfs_lsn_t commit_lsn,
- int flags)
+ bool abort)
{
struct xfs_log_item_desc *lidp, *next;
@@ -755,7 +748,7 @@ xfs_trans_free_items(
if (commit_lsn != NULLCOMMITLSN)
lip->li_ops->iop_committing(lip, commit_lsn);
- if (flags & XFS_TRANS_ABORT)
+ if (abort)
lip->li_flags |= XFS_LI_ABORTED;
lip->li_ops->iop_unlock(lip);
@@ -892,27 +885,17 @@ xfs_trans_committed_bulk(
* have already been unlocked as if the commit had succeeded.
* Do not reference the transaction structure after this call.
*/
-int
-xfs_trans_commit(
+static int
+__xfs_trans_commit(
struct xfs_trans *tp,
- uint flags)
+ bool regrant)
{
struct xfs_mount *mp = tp->t_mountp;
xfs_lsn_t commit_lsn = -1;
int error = 0;
- int log_flags = 0;
int sync = tp->t_flags & XFS_TRANS_SYNC;
/*
- * Determine whether this commit is releasing a permanent
- * log reservation or not.
- */
- if (flags & XFS_TRANS_RELEASE_LOG_RES) {
- ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
- log_flags = XFS_LOG_REL_PERM_RESERV;
- }
-
- /*
* If there is nothing to be logged by the transaction,
* then unlock all of the items associated with the
* transaction and free the transaction structure.
@@ -936,7 +919,7 @@ xfs_trans_commit(
xfs_trans_apply_sb_deltas(tp);
xfs_trans_apply_dquot_deltas(tp);
- xfs_log_commit_cil(mp, tp, &commit_lsn, flags);
+ xfs_log_commit_cil(mp, tp, &commit_lsn, regrant);
current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
xfs_trans_free(tp);
@@ -964,18 +947,25 @@ out_unreserve:
*/
xfs_trans_unreserve_and_mod_dquots(tp);
if (tp->t_ticket) {
- 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;
}
current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
- xfs_trans_free_items(tp, NULLCOMMITLSN, error ? XFS_TRANS_ABORT : 0);
+ xfs_trans_free_items(tp, NULLCOMMITLSN, !!error);
xfs_trans_free(tp);
XFS_STATS_INC(xs_trans_empty);
return error;
}
+int
+xfs_trans_commit(
+ struct xfs_trans *tp)
+{
+ return __xfs_trans_commit(tp, false);
+}
+
/*
* Unlock all of the transaction's items and free the transaction.
* The transaction must not have modified any of its items, because
@@ -986,29 +976,22 @@ out_unreserve:
*/
void
xfs_trans_cancel(
- xfs_trans_t *tp,
- int flags)
+ struct xfs_trans *tp)
{
- int log_flags;
- xfs_mount_t *mp = tp->t_mountp;
+ struct xfs_mount *mp = tp->t_mountp;
+ bool dirty = (tp->t_flags & XFS_TRANS_DIRTY);
/*
- * See if the caller is being too lazy to figure out if
- * the transaction really needs an abort.
- */
- if ((flags & XFS_TRANS_ABORT) && !(tp->t_flags & XFS_TRANS_DIRTY))
- flags &= ~XFS_TRANS_ABORT;
- /*
* See if the caller is relying on us to shut down the
* filesystem. This happens in paths where we detect
* corruption and decide to give up.
*/
- if ((tp->t_flags & XFS_TRANS_DIRTY) && !XFS_FORCED_SHUTDOWN(mp)) {
+ if (dirty && !XFS_FORCED_SHUTDOWN(mp)) {
XFS_ERROR_REPORT("xfs_trans_cancel", XFS_ERRLEVEL_LOW, mp);
xfs_force_shutdown(mp, SHUTDOWN_CORRUPT_INCORE);
}
#ifdef DEBUG
- if (!(flags & XFS_TRANS_ABORT) && !XFS_FORCED_SHUTDOWN(mp)) {
+ if (!dirty && !XFS_FORCED_SHUTDOWN(mp)) {
struct xfs_log_item_desc *lidp;
list_for_each_entry(lidp, &tp->t_items, lid_trans)
@@ -1018,27 +1001,20 @@ xfs_trans_cancel(
xfs_trans_unreserve_and_mod_sb(tp);
xfs_trans_unreserve_and_mod_dquots(tp);
- if (tp->t_ticket) {
- if (flags & XFS_TRANS_RELEASE_LOG_RES) {
- ASSERT(tp->t_flags & XFS_TRANS_PERM_LOG_RES);
- log_flags = XFS_LOG_REL_PERM_RESERV;
- } else {
- log_flags = 0;
- }
- 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);
- xfs_trans_free_items(tp, NULLCOMMITLSN, flags);
+ xfs_trans_free_items(tp, NULLCOMMITLSN, dirty);
xfs_trans_free(tp);
}
/*
* Roll from one trans in the sequence of PERMANENT transactions to
* the next: permanent transactions are only flushed out when
- * committed with XFS_TRANS_RELEASE_LOG_RES, but we still want as soon
+ * committed with xfs_trans_commit(), but we still want as soon
* as possible to let chunks of it go to the log. So we commit the
* chunk we've been working on and get a new transaction to continue.
*/
@@ -1055,7 +1031,8 @@ 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.
@@ -1071,20 +1048,13 @@ xfs_trans_roll(
* is in progress. The caller takes the responsibility to cancel
* the duplicate transaction that gets returned.
*/
- error = xfs_trans_commit(trans, 0);
+ error = __xfs_trans_commit(trans, true);
if (error)
return error;
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,
* out to disk if they are taking up space at the tail of the log
@@ -1100,6 +1070,7 @@ xfs_trans_roll(
if (error)
return error;
- xfs_trans_ijoin(trans, dp, 0);
+ if (dp)
+ xfs_trans_ijoin(trans, dp, 0);
return 0;
}