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authorChristoph Hellwig <hch@infradead.org>2011-12-07 01:58:08 +0400
committerBen Myers <bpm@sgi.com>2011-12-08 23:53:30 +0400
commit0244b9603df38bf19155b761689e1a816fc50b0a (patch)
tree256b91c77c63d2ec58af5844f1e3eb1f587ceaf1 /fs/xfs/xfs_trans.c
parent93b8a5854f247138e401471a9c3b82ccb62ff608 (diff)
downloadlinux-0244b9603df38bf19155b761689e1a816fc50b0a.tar.xz
xfs: cleanup the transaction commit path a bit
Now that the nodelaylog mode is gone we can simplify the transaction commit path a bit by removing the xfs_trans_commit_cil routine. Restoring the process flags is merged into xfs_trans_commit which already does it for the error path, and allocating the log vectors is merged into xlog_cil_format_items, which already fills them with data, thus avoiding one loop over all log items. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <dchinner@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_trans.c')
-rw-r--r--fs/xfs/xfs_trans.c81
1 files changed, 4 insertions, 77 deletions
diff --git a/fs/xfs/xfs_trans.c b/fs/xfs/xfs_trans.c
index d511332ec841..6170f1c2dfd8 100644
--- a/fs/xfs/xfs_trans.c
+++ b/fs/xfs/xfs_trans.c
@@ -1325,82 +1325,6 @@ xfs_trans_committed_bulk(
}
/*
- * Walk the log items and allocate log vector structures for
- * each item large enough to fit all the vectors they require.
- * Note that this format differs from the old log vector format in
- * that there is no transaction header in these log vectors.
- */
-STATIC struct xfs_log_vec *
-xfs_trans_alloc_log_vecs(
- xfs_trans_t *tp)
-{
- struct xfs_log_item_desc *lidp;
- struct xfs_log_vec *lv = NULL;
- struct xfs_log_vec *ret_lv = NULL;
-
-
- /* Bail out if we didn't find a log item. */
- if (list_empty(&tp->t_items)) {
- ASSERT(0);
- return NULL;
- }
-
- list_for_each_entry(lidp, &tp->t_items, lid_trans) {
- struct xfs_log_vec *new_lv;
-
- /* Skip items which aren't dirty in this transaction. */
- if (!(lidp->lid_flags & XFS_LID_DIRTY))
- continue;
-
- /* Skip items that do not have any vectors for writing */
- lidp->lid_size = IOP_SIZE(lidp->lid_item);
- if (!lidp->lid_size)
- continue;
-
- new_lv = kmem_zalloc(sizeof(*new_lv) +
- lidp->lid_size * sizeof(struct xfs_log_iovec),
- KM_SLEEP);
-
- /* The allocated iovec region lies beyond the log vector. */
- new_lv->lv_iovecp = (struct xfs_log_iovec *)&new_lv[1];
- new_lv->lv_niovecs = lidp->lid_size;
- new_lv->lv_item = lidp->lid_item;
- if (!ret_lv)
- ret_lv = new_lv;
- else
- lv->lv_next = new_lv;
- lv = new_lv;
- }
-
- return ret_lv;
-}
-
-static int
-xfs_trans_commit_cil(
- struct xfs_mount *mp,
- struct xfs_trans *tp,
- xfs_lsn_t *commit_lsn,
- int flags)
-{
- struct xfs_log_vec *log_vector;
-
- /*
- * Get each log item to allocate a vector structure for
- * the log item to to pass to the log write code. The
- * CIL commit code will format the vector and save it away.
- */
- log_vector = xfs_trans_alloc_log_vecs(tp);
- if (!log_vector)
- return ENOMEM;
-
- xfs_log_commit_cil(mp, tp, log_vector, commit_lsn, flags);
-
- current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
- xfs_trans_free(tp);
- return 0;
-}
-
-/*
* Commit the given transaction to the log.
*
* XFS disk error handling mechanism is not based on a typical
@@ -1456,13 +1380,16 @@ xfs_trans_commit(
xfs_trans_apply_sb_deltas(tp);
xfs_trans_apply_dquot_deltas(tp);
- error = xfs_trans_commit_cil(mp, tp, &commit_lsn, flags);
+ error = xfs_log_commit_cil(mp, tp, &commit_lsn, flags);
if (error == ENOMEM) {
xfs_force_shutdown(mp, SHUTDOWN_LOG_IO_ERROR);
error = XFS_ERROR(EIO);
goto out_unreserve;
}
+ current_restore_flags_nested(&tp->t_pflags, PF_FSTRANS);
+ xfs_trans_free(tp);
+
/*
* If the transaction needs to be synchronous, then force the
* log out now and wait for it.