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authorDave Chinner <dchinner@redhat.com>2015-01-21 23:10:31 +0100
committerDave Chinner <david@fromorbit.com>2015-01-21 23:10:31 +0100
commit61e63ecb577f9b56bfb3182f1215b64e37a12c38 (patch)
treec2d45b022243adaf26b886232536307e02bc90ce /fs/xfs/xfs_super.c
parentxfs: remove bitfield based superblock updates (diff)
downloadlinux-61e63ecb577f9b56bfb3182f1215b64e37a12c38.tar.xz
linux-61e63ecb577f9b56bfb3182f1215b64e37a12c38.zip
xfs: consolidate superblock logging functions
We now have several superblock loggin functions that are identical except for the transaction reservation and whether it shoul dbe a synchronous transaction or not. Consolidate these all into a single function, a single reserveration and a sync flag and call it xfs_sync_sb(). Also, xfs_mod_sb() is not really a modification function - it's the operation of logging the superblock buffer. hence change the name of it to reflect this. Note that we have to change the mp->m_update_flags that are passed around at mount time to a boolean simply to indicate a superblock update is needed. Signed-off-by: Dave Chinner <dchinner@redhat.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Dave Chinner <david@fromorbit.com>
Diffstat (limited to 'fs/xfs/xfs_super.c')
-rw-r--r--fs/xfs/xfs_super.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/fs/xfs/xfs_super.c b/fs/xfs/xfs_super.c
index 6fb298963d1b..a3b791b85336 100644
--- a/fs/xfs/xfs_super.c
+++ b/fs/xfs/xfs_super.c
@@ -1257,13 +1257,13 @@ xfs_fs_remount(
* If this is the first remount to writeable state we
* might have some superblock changes to update.
*/
- if (mp->m_update_flags) {
- error = xfs_mount_log_sb(mp);
+ if (mp->m_update_sb) {
+ error = xfs_sync_sb(mp, false);
if (error) {
xfs_warn(mp, "failed to write sb changes");
return error;
}
- mp->m_update_flags = 0;
+ mp->m_update_sb = false;
}
/*
@@ -1293,8 +1293,9 @@ xfs_fs_remount(
/*
* Second stage of a freeze. The data is already frozen so we only
- * need to take care of the metadata. Once that's done write a dummy
- * record to dirty the log in case of a crash while frozen.
+ * need to take care of the metadata. Once that's done sync the superblock
+ * to the log to dirty it in case of a crash while frozen. This ensures that we
+ * will recover the unlinked inode lists on the next mount.
*/
STATIC int
xfs_fs_freeze(
@@ -1304,7 +1305,7 @@ xfs_fs_freeze(
xfs_save_resvblks(mp);
xfs_quiesce_attr(mp);
- return xfs_fs_log_dummy(mp);
+ return xfs_sync_sb(mp, true);
}
STATIC int