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| author | Dave Chinner <dchinner@redhat.com> | 2013-08-12 20:50:04 +1000 |
|---|---|---|
| committer | Ben Myers <bpm@sgi.com> | 2013-08-13 16:10:21 -0500 |
| commit | 166d13688a0e2d0aa379e259af8e2ee6a401de9a (patch) | |
| tree | 2f30092475185ee80d941e0be7689a0f5151be9f /fs/xfs/xfs_dquot_item.c | |
| parent | 050a1952c3f9304eccddc4f084e2401b5205ff55 (diff) | |
| download | linux-166d13688a0e2d0aa379e259af8e2ee6a401de9a.tar.gz linux-166d13688a0e2d0aa379e259af8e2ee6a401de9a.tar.bz2 linux-166d13688a0e2d0aa379e259af8e2ee6a401de9a.zip | |
xfs: return log item size in IOP_SIZE
To begin optimising the CIL commit process, we need to have IOP_SIZE
return both the number of vectors and the size of the data pointed
to by the vectors. This enables us to calculate the size ofthe
memory allocation needed before the formatting step and reduces the
number of memory allocations per item by one.
While there, kill the IOP_SIZE macro.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_dquot_item.c')
| -rw-r--r-- | fs/xfs/xfs_dquot_item.c | 22 |
1 files changed, 13 insertions, 9 deletions
diff --git a/fs/xfs/xfs_dquot_item.c b/fs/xfs/xfs_dquot_item.c index f07a4365def6..60c6e1f12695 100644 --- a/fs/xfs/xfs_dquot_item.c +++ b/fs/xfs/xfs_dquot_item.c @@ -44,14 +44,15 @@ static inline struct xfs_dq_logitem *DQUOT_ITEM(struct xfs_log_item *lip) /* * returns the number of iovecs needed to log the given dquot item. */ -STATIC uint +STATIC void xfs_qm_dquot_logitem_size( - struct xfs_log_item *lip) + struct xfs_log_item *lip, + int *nvecs, + int *nbytes) { - /* - * we need only two iovecs, one for the format, one for the real thing - */ - return 2; + *nvecs += 2; + *nbytes += sizeof(struct xfs_dq_logformat) + + sizeof(struct xfs_disk_dquot); } /* @@ -286,11 +287,14 @@ static inline struct xfs_qoff_logitem *QOFF_ITEM(struct xfs_log_item *lip) * We only need 1 iovec for an quotaoff item. It just logs the * quotaoff_log_format structure. */ -STATIC uint +STATIC void xfs_qm_qoff_logitem_size( - struct xfs_log_item *lip) + struct xfs_log_item *lip, + int *nvecs, + int *nbytes) { - return 1; + *nvecs += 1; + *nbytes += sizeof(struct xfs_qoff_logitem); } /* |