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authorDave Chinner <dchinner@redhat.com>2010-09-22 10:47:20 +1000
committerAlex Elder <aelder@sgi.com>2010-10-18 15:07:48 -0500
commitebad861b5702c3e2332a3e906978f47144d22f70 (patch)
tree7b4502277c46d26d1d26258d05596b58ab6b868a /fs/xfs/xfs_log_recover.c
parent5adc94c247c3779782c7b0b8b5e28cf50596eb37 (diff)
downloadlwn-ebad861b5702c3e2332a3e906978f47144d22f70.tar.gz
lwn-ebad861b5702c3e2332a3e906978f47144d22f70.zip
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_log_recover.c')
-rw-r--r--fs/xfs/xfs_log_recover.c16
1 files changed, 7 insertions, 9 deletions
diff --git a/fs/xfs/xfs_log_recover.c b/fs/xfs/xfs_log_recover.c
index 3d887542b037..351d71117f16 100644
--- a/fs/xfs/xfs_log_recover.c
+++ b/fs/xfs/xfs_log_recover.c
@@ -322,10 +322,11 @@ xlog_recover_iodone(
* this during recovery. One strike!
*/
xfs_ioerror_alert("xlog_recover_iodone",
- bp->b_mount, bp, XFS_BUF_ADDR(bp));
- xfs_force_shutdown(bp->b_mount, SHUTDOWN_META_IO_ERROR);
+ bp->b_target->bt_mount, bp,
+ XFS_BUF_ADDR(bp));
+ xfs_force_shutdown(bp->b_target->bt_mount,
+ SHUTDOWN_META_IO_ERROR);
}
- bp->b_mount = NULL;
XFS_BUF_CLR_IODONE_FUNC(bp);
xfs_biodone(bp);
}
@@ -2276,8 +2277,7 @@ xlog_recover_do_buffer_trans(
XFS_BUF_STALE(bp);
error = xfs_bwrite(mp, bp);
} else {
- ASSERT(bp->b_mount == NULL || bp->b_mount == mp);
- bp->b_mount = mp;
+ ASSERT(bp->b_target->bt_mount == mp);
XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
xfs_bdwrite(mp, bp);
}
@@ -2541,8 +2541,7 @@ xlog_recover_do_inode_trans(
}
write_inode_buffer:
- ASSERT(bp->b_mount == NULL || bp->b_mount == mp);
- bp->b_mount = mp;
+ ASSERT(bp->b_target->bt_mount == mp);
XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
xfs_bdwrite(mp, bp);
error:
@@ -2679,8 +2678,7 @@ xlog_recover_do_dquot_trans(
memcpy(ddq, recddq, item->ri_buf[1].i_len);
ASSERT(dq_f->qlf_size == 2);
- ASSERT(bp->b_mount == NULL || bp->b_mount == mp);
- bp->b_mount = mp;
+ ASSERT(bp->b_target->bt_mount == mp);
XFS_BUF_SET_IODONE_FUNC(bp, xlog_recover_iodone);
xfs_bdwrite(mp, bp);