The second argument of open_bdev_exclusive/close_bdev_exclusive takes
fmode_t flags instead of mount flags. This fixes the misuse.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
---
fs/nilfs2/super.c | 10 +++++++---
1 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c
index f6cff39..40eb231 100644
--- a/fs/nilfs2/super.c
+++ b/fs/nilfs2/super.c
@@ -997,10 +997,14 @@ nilfs_get_sb(struct file_system_type *fs_type, int flags,
{
struct nilfs_super_data sd;
struct super_block *s;
+ fmode_t mode = FMODE_READ;
struct the_nilfs *nilfs;
int err, need_to_close = 1;
- sd.bdev = open_bdev_exclusive(dev_name, flags, fs_type);
+ if (!(flags & MS_RDONLY))
+ mode |= FMODE_WRITE;
+
+ sd.bdev = open_bdev_exclusive(dev_name, mode, fs_type);
if (IS_ERR(sd.bdev))
return PTR_ERR(sd.bdev);
@@ -1081,7 +1085,7 @@ nilfs_get_sb(struct file_system_type *fs_type, int flags,
mutex_unlock(&nilfs->ns_mount_mutex);
put_nilfs(nilfs);
if (need_to_close)
- close_bdev_exclusive(sd.bdev, flags);
+ close_bdev_exclusive(sd.bdev, mode);
simple_set_mnt(mnt, s);
return 0;
@@ -1089,7 +1093,7 @@ nilfs_get_sb(struct file_system_type *fs_type, int flags,
mutex_unlock(&nilfs->ns_mount_mutex);
put_nilfs(nilfs);
failed:
- close_bdev_exclusive(sd.bdev, flags);
+ close_bdev_exclusive(sd.bdev, mode);
return err;
--
1.6.3.4
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