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authorArnd Bergmann <arnd@arndb.de>2009-06-12 09:53:47 +0200
committerArnd Bergmann <arnd@arndb.de>2009-06-12 11:32:58 +0200
commit5b02ee3d219f9e01b6e9146e25613822cfc2e5ce (patch)
tree7ce9126738c3cf4b37d67170d0e4b34818c057a9 /fs/ubifs/super.c
parent26a28fa4fea5b8c65713aa50c124f76a88c7924d (diff)
parent8ebf975608aaebd7feb33d77f07ba21a6380e086 (diff)
asm-generic: merge branch 'master' of torvalds/linux-2.6
Fixes a merge conflict against the x86 tree caused by a fix to atomic.h which I renamed to atomic_long.h. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'fs/ubifs/super.c')
-rw-r--r--fs/ubifs/super.c17
1 files changed, 13 insertions, 4 deletions
diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c
index e9f7a754c4f..3589eab02a2 100644
--- a/fs/ubifs/super.c
+++ b/fs/ubifs/super.c
@@ -36,6 +36,7 @@
#include <linux/mount.h>
#include <linux/math64.h>
#include <linux/writeback.h>
+#include <linux/smp_lock.h>
#include "ubifs.h"
/*
@@ -447,9 +448,6 @@ static int ubifs_sync_fs(struct super_block *sb, int wait)
if (!wait)
return 0;
- if (sb->s_flags & MS_RDONLY)
- return 0;
-
/*
* VFS calls '->sync_fs()' before synchronizing all dirty inodes and
* pages, so synchronize them first, then commit the journal. Strictly
@@ -1687,6 +1685,9 @@ static void ubifs_put_super(struct super_block *sb)
ubifs_msg("un-mount UBI device %d, volume %d", c->vi.ubi_num,
c->vi.vol_id);
+
+ lock_kernel();
+
/*
* The following asserts are only valid if there has not been a failure
* of the media. For example, there will be dirty inodes if we failed
@@ -1753,6 +1754,8 @@ static void ubifs_put_super(struct super_block *sb)
ubi_close_volume(c->ubi);
mutex_unlock(&c->umount_mutex);
kfree(c);
+
+ unlock_kernel();
}
static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)
@@ -1768,17 +1771,22 @@ static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)
return err;
}
+ lock_kernel();
if ((sb->s_flags & MS_RDONLY) && !(*flags & MS_RDONLY)) {
if (c->ro_media) {
ubifs_msg("cannot re-mount due to prior errors");
+ unlock_kernel();
return -EROFS;
}
err = ubifs_remount_rw(c);
- if (err)
+ if (err) {
+ unlock_kernel();
return err;
+ }
} else if (!(sb->s_flags & MS_RDONLY) && (*flags & MS_RDONLY)) {
if (c->ro_media) {
ubifs_msg("cannot re-mount due to prior errors");
+ unlock_kernel();
return -EROFS;
}
ubifs_remount_ro(c);
@@ -1793,6 +1801,7 @@ static int ubifs_remount_fs(struct super_block *sb, int *flags, char *data)
}
ubifs_assert(c->lst.taken_empty_lebs > 0);
+ unlock_kernel();
return 0;
}