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authorDave Chinner <dchinner@redhat.com>2012-06-08 15:44:53 +1000
committerBen Myers <bpm@sgi.com>2012-06-14 12:28:22 -0500
commitd2c2819117176e139dc761873c664aaa770c79c9 (patch)
tree03c64c1d3f21f8628ca313b276ce327a3c012549 /fs/xfs
parent0f2cf9d3d917b269645902506adaa4ff92b5e506 (diff)
downloadop-kernel-dev-d2c2819117176e139dc761873c664aaa770c79c9.zip
op-kernel-dev-d2c2819117176e139dc761873c664aaa770c79c9.tar.gz
xfs: m_maxioffset is redundant
The m_maxioffset field in the struct xfs_mount contains the same value as the superblock s_maxbytes field. There is no need to carry two copies of this limit around, so use the VFS superblock version. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Ben Myers <bpm@sgi.com>
Diffstat (limited to 'fs/xfs')
-rw-r--r--fs/xfs/xfs_aops.c12
-rw-r--r--fs/xfs/xfs_iomap.c4
-rw-r--r--fs/xfs/xfs_mount.c2
-rw-r--r--fs/xfs/xfs_mount.h3
4 files changed, 9 insertions, 12 deletions
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 8dad722..84e3725 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -323,10 +323,10 @@ xfs_map_blocks(
ASSERT(ip->i_d.di_format != XFS_DINODE_FMT_BTREE ||
(ip->i_df.if_flags & XFS_IFEXTENTS));
- ASSERT(offset <= mp->m_maxioffset);
+ ASSERT(offset <= mp->m_super->s_maxbytes);
- if (offset + count > mp->m_maxioffset)
- count = mp->m_maxioffset - offset;
+ if (offset + count > mp->m_super->s_maxbytes)
+ count = mp->m_super->s_maxbytes - offset;
end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + count);
offset_fsb = XFS_B_TO_FSBT(mp, offset);
error = xfs_bmapi_read(ip, offset_fsb, end_fsb - offset_fsb,
@@ -1162,9 +1162,9 @@ __xfs_get_blocks(
lockmode = xfs_ilock_map_shared(ip);
}
- ASSERT(offset <= mp->m_maxioffset);
- if (offset + size > mp->m_maxioffset)
- size = mp->m_maxioffset - offset;
+ ASSERT(offset <= mp->m_super->s_maxbytes);
+ if (offset + size > mp->m_super->s_maxbytes)
+ size = mp->m_super->s_maxbytes - offset;
end_fsb = XFS_B_TO_FSB(mp, (xfs_ufsize_t)offset + size);
offset_fsb = XFS_B_TO_FSBT(mp, offset);
diff --git a/fs/xfs/xfs_iomap.c b/fs/xfs/xfs_iomap.c
index aadfce6..4590cd1 100644
--- a/fs/xfs/xfs_iomap.c
+++ b/fs/xfs/xfs_iomap.c
@@ -416,8 +416,8 @@ retry:
* Make sure preallocation does not create extents beyond the range we
* actually support in this filesystem.
*/
- if (last_fsb > XFS_B_TO_FSB(mp, mp->m_maxioffset))
- last_fsb = XFS_B_TO_FSB(mp, mp->m_maxioffset);
+ if (last_fsb > XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes))
+ last_fsb = XFS_B_TO_FSB(mp, mp->m_super->s_maxbytes);
ASSERT(last_fsb > offset_fsb);
diff --git a/fs/xfs/xfs_mount.c b/fs/xfs/xfs_mount.c
index 536021f..9536fd1 100644
--- a/fs/xfs/xfs_mount.c
+++ b/fs/xfs/xfs_mount.c
@@ -1200,8 +1200,6 @@ xfs_mountfs(
xfs_set_maxicount(mp);
- mp->m_maxioffset = xfs_max_file_offset(sbp->sb_blocklog);
-
error = xfs_uuid_mount(mp);
if (error)
goto out;
diff --git a/fs/xfs/xfs_mount.h b/fs/xfs/xfs_mount.h
index 8b89c5a..47c6b3b 100644
--- a/fs/xfs/xfs_mount.h
+++ b/fs/xfs/xfs_mount.h
@@ -176,7 +176,6 @@ typedef struct xfs_mount {
uint m_qflags; /* quota status flags */
xfs_trans_reservations_t m_reservations;/* precomputed res values */
__uint64_t m_maxicount; /* maximum inode count */
- __uint64_t m_maxioffset; /* maximum inode offset */
__uint64_t m_resblks; /* total reserved blocks */
__uint64_t m_resblks_avail;/* available reserved blocks */
__uint64_t m_resblks_save; /* reserved blks @ remount,ro */
@@ -297,7 +296,7 @@ xfs_preferred_iosize(xfs_mount_t *mp)
PAGE_CACHE_SIZE));
}
-#define XFS_MAXIOFFSET(mp) ((mp)->m_maxioffset)
+#define XFS_MAXIOFFSET(mp) ((mp)->m_super->s_maxbytes)
#define XFS_LAST_UNMOUNT_WAS_CLEAN(mp) \
((mp)->m_flags & XFS_MOUNT_WAS_CLEAN)
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