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authorRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-11-19 19:58:46 +0900
committerRyusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>2009-11-20 10:05:52 +0900
commita057d2c01161444c48b12a60351ae6c7135f6e61 (patch)
tree066316a4e9a9d1d2979873c31e7855eb9c093c49 /fs/nilfs2
parentf50a4c8149cc135921a8a0476bff8e622f59aef9 (diff)
nilfs2: add helper to get if volume is in a valid state
This adds a helper function, nilfs_valid_fs() which returns if nilfs is in a valid state or not. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2')
-rw-r--r--fs/nilfs2/the_nilfs.c6
-rw-r--r--fs/nilfs2/the_nilfs.h10
2 files changed, 11 insertions, 5 deletions
diff --git a/fs/nilfs2/the_nilfs.c b/fs/nilfs2/the_nilfs.c
index aea2b58ba03..890a8d3886c 100644
--- a/fs/nilfs2/the_nilfs.c
+++ b/fs/nilfs2/the_nilfs.c
@@ -261,16 +261,12 @@ int load_nilfs(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
struct nilfs_recovery_info ri;
unsigned int s_flags = sbi->s_super->s_flags;
int really_read_only = bdev_read_only(nilfs->ns_bdev);
- unsigned valid_fs;
+ int valid_fs = nilfs_valid_fs(nilfs);
int err;
if (nilfs_loaded(nilfs))
return 0;
- down_write(&nilfs->ns_sem);
- valid_fs = (nilfs->ns_mount_state & NILFS_VALID_FS);
- up_write(&nilfs->ns_sem);
-
if (!valid_fs) {
printk(KERN_WARNING "NILFS warning: mounting unchecked fs\n");
if (s_flags & MS_RDONLY) {
diff --git a/fs/nilfs2/the_nilfs.h b/fs/nilfs2/the_nilfs.h
index 20abd55881e..589786e3346 100644
--- a/fs/nilfs2/the_nilfs.h
+++ b/fs/nilfs2/the_nilfs.h
@@ -258,6 +258,16 @@ static inline void nilfs_put_sbinfo(struct nilfs_sb_info *sbi)
kfree(sbi);
}
+static inline int nilfs_valid_fs(struct the_nilfs *nilfs)
+{
+ unsigned valid_fs;
+
+ down_read(&nilfs->ns_sem);
+ valid_fs = (nilfs->ns_mount_state & NILFS_VALID_FS);
+ up_read(&nilfs->ns_sem);
+ return valid_fs;
+}
+
static inline void
nilfs_get_segment_range(struct the_nilfs *nilfs, __u64 segnum,
sector_t *seg_start, sector_t *seg_end)