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| author | Peter Zijlstra <a.p.zijlstra@chello.nl> | 2007-10-17 10:25:45 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-10-17 19:42:44 +0400 |
| commit | 833f4077bf7c2dcff6e31526e03ec2ad91c88581 (patch) | |
| tree | 80916540be846267342c3e5e4a6255c2c18b44d5 /fs/ext3 | |
| parent | bf1d89c81352f6eca72d0c10cfee3dba29ef5efb (diff) | |
| download | linux-833f4077bf7c2dcff6e31526e03ec2ad91c88581.tar.xz | |
lib: percpu_counter_init error handling
alloc_percpu can fail, propagate that error.
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ext3')
| -rw-r--r-- | fs/ext3/super.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/fs/ext3/super.c b/fs/ext3/super.c index c5a52c9775a0..ac5c6b0ecd64 100644 --- a/fs/ext3/super.c +++ b/fs/ext3/super.c @@ -1416,6 +1416,7 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) int i; int needs_recovery; __le32 features; + int err; sbi = kzalloc(sizeof(*sbi), GFP_KERNEL); if (!sbi) @@ -1675,12 +1676,20 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent) get_random_bytes(&sbi->s_next_generation, sizeof(u32)); spin_lock_init(&sbi->s_next_gen_lock); - percpu_counter_init(&sbi->s_freeblocks_counter, - ext3_count_free_blocks(sb)); - percpu_counter_init(&sbi->s_freeinodes_counter, - ext3_count_free_inodes(sb)); - percpu_counter_init(&sbi->s_dirs_counter, - ext3_count_dirs(sb)); + err = percpu_counter_init(&sbi->s_freeblocks_counter, + ext3_count_free_blocks(sb)); + if (!err) { + err = percpu_counter_init(&sbi->s_freeinodes_counter, + ext3_count_free_inodes(sb)); + } + if (!err) { + err = percpu_counter_init(&sbi->s_dirs_counter, + ext3_count_dirs(sb)); + } + if (err) { + printk(KERN_ERR "EXT3-fs: insufficient memory\n"); + goto failed_mount3; + } /* per fileystem reservation list head & lock */ spin_lock_init(&sbi->s_rsv_window_lock); |