diff options
| author | Dave Chinner <dchinner@redhat.com> | 2010-09-22 04:47:20 +0400 |
|---|---|---|
| committer | Alex Elder <aelder@sgi.com> | 2010-10-19 00:07:48 +0400 |
| commit | ebad861b5702c3e2332a3e906978f47144d22f70 (patch) | |
| tree | 7b4502277c46d26d1d26258d05596b58ab6b868a /fs/xfs/xfs_buf_item.c | |
| parent | 5adc94c247c3779782c7b0b8b5e28cf50596eb37 (diff) | |
| download | linux-ebad861b5702c3e2332a3e906978f47144d22f70.tar.xz | |
xfs: store xfs_mount in the buftarg instead of in the xfs_buf
Each buffer contains both a buftarg pointer and a mount pointer. If
we add a mount pointer into the buftarg, we can avoid needing the
b_mount field in every buffer and grab it from the buftarg when
needed instead. This shrinks the xfs_buf by 8 bytes.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Alex Elder <aelder@sgi.com>
Diffstat (limited to 'fs/xfs/xfs_buf_item.c')
| -rw-r--r-- | fs/xfs/xfs_buf_item.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/fs/xfs/xfs_buf_item.c b/fs/xfs/xfs_buf_item.c index 1b09d7a280df..ee7557611b6e 100644 --- a/fs/xfs/xfs_buf_item.c +++ b/fs/xfs/xfs_buf_item.c @@ -692,8 +692,7 @@ xfs_buf_item_init( * the first. If we do already have one, there is * nothing to do here so return. */ - if (bp->b_mount != mp) - bp->b_mount = mp; + ASSERT(bp->b_target->bt_mount == mp); if (XFS_BUF_FSPRIVATE(bp, void *) != NULL) { lip = XFS_BUF_FSPRIVATE(bp, xfs_log_item_t *); if (lip->li_type == XFS_LI_BUF) { |