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| author | Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> | 2009-04-06 19:01:55 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-04-07 08:31:19 -0700 |
| commit | 1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b (patch) | |
| tree | f80e97297d5badebd31bbb17003d76a4ea30453a /fs/nilfs2/super.c | |
| parent | 2c2e52fc4fca251e68f90821c9ff5cb18be4df58 (diff) | |
| download | linux-1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b.tar.gz linux-1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b.tar.bz2 linux-1f5abe7e7dbcd83e73212c6cb135a6106cea6a0b.zip | |
nilfs2: replace BUG_ON and BUG calls triggerable from ioctl
Pekka Enberg advised me:
> It would be nice if BUG(), BUG_ON(), and panic() calls would be
> converted to proper error handling using WARN_ON() calls. The BUG()
> call in nilfs_cpfile_delete_checkpoints(), for example, looks to be
> triggerable from user-space via the ioctl() system call.
This will follow the comment and keep them to a minimum.
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/nilfs2/super.c')
| -rw-r--r-- | fs/nilfs2/super.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/fs/nilfs2/super.c b/fs/nilfs2/super.c index 2f0e9f7bf152..d0639a6aae9e 100644 --- a/fs/nilfs2/super.c +++ b/fs/nilfs2/super.c @@ -841,8 +841,11 @@ nilfs_fill_super(struct super_block *sb, void *data, int silent, if (sb->s_flags & MS_RDONLY) { if (nilfs_test_opt(sbi, SNAPSHOT)) { - if (!nilfs_cpfile_is_snapshot(nilfs->ns_cpfile, - sbi->s_snapshot_cno)) { + err = nilfs_cpfile_is_snapshot(nilfs->ns_cpfile, + sbi->s_snapshot_cno); + if (err < 0) + goto failed_sbi; + if (!err) { printk(KERN_ERR "NILFS: The specified checkpoint is " "not a snapshot " @@ -1163,7 +1166,6 @@ nilfs_get_sb(struct file_system_type *fs_type, int flags, } else { struct nilfs_sb_info *sbi = NILFS_SB(s); - BUG_ON(!sbi || !sbi->s_nilfs); /* * s_umount protects super_block from unmount process; * It covers pointers of nilfs_sb_info and the_nilfs. |