diff options
| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-01-31 19:46:40 +0900 |
|---|---|---|
| committer | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2010-02-13 12:26:03 +0900 |
| commit | fe5f171bb272946ce5fbf843ce2f8467d0d41b9a (patch) | |
| tree | fc3917cd7b3fae605e464f94af815dc9d9cce36f /fs/nilfs2/super.c | |
| parent | 7512487e6d6459e4c3f9c7cedc53050a6c30e387 (diff) | |
| download | linux-stable-fe5f171bb272946ce5fbf843ce2f8467d0d41b9a.tar.gz linux-stable-fe5f171bb272946ce5fbf843ce2f8467d0d41b9a.tar.bz2 linux-stable-fe5f171bb272946ce5fbf843ce2f8467d0d41b9a.zip | |
nilfs2: fix potential hang in nilfs_error on errors=remount-ro
nilfs_error() calls nilfs_detach_segment_constructor() if
errors=remount-ro option is specified, and this may lead to a hang due
to recursive locking of, for instance, nilfs->ns_segctor_sem and
others.
In this case, detaching segment constructor is not necessary because
read-only flag is set to the filesystem and further writes are
blocked.
This fixes the potential hang issue by removing the
nilfs_detach_segment_constructor() call from nilfs_error.
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Diffstat (limited to 'fs/nilfs2/super.c')
| -rw-r--r-- | fs/nilfs2/super.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 3f88401a375b..f068270f6c75 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -96,9 +96,6 @@ void nilfs_error(struct super_block *sb, const char *function, if (!(sb->s_flags & MS_RDONLY)) { struct the_nilfs *nilfs = sbi->s_nilfs; - if (!nilfs_test_opt(sbi, ERRORS_CONT)) - nilfs_detach_segment_constructor(sbi); - down_write(&nilfs->ns_sem); if (!(nilfs->ns_mount_state & NILFS_ERROR_FS)) { nilfs->ns_mount_state |= NILFS_ERROR_FS; |