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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2 

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2:
  nilfs2: fix oopses with doubly mounted snapshots
  nilfs2: missing a read lock for segment writer in nilfs_attach_checkpoint()
This commit is contained in:
Linus Torvalds 2009-08-19 10:40:24 -07:00
parent 0dc9aa845c a924586036
commit 6c30c53fd5
2 changed files with 3 additions and 1 deletions
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2
fs/nilfs2/super.c
View File

@ -416,8 +416,10 @@ int nilfs_attach_checkpoint(struct nilfs_sb_info *sbi, __u64 cno)
if (unlikely(err))
goto failed;
down_read(&nilfs->ns_segctor_sem);
err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, cno, 0, &raw_cp,
&bh_cp);
up_read(&nilfs->ns_segctor_sem);
if (unlikely(err)) {
if (err == -ENOENT || err == -EINVAL) {
printk(KERN_ERR

2
fs/nilfs2/the_nilfs.h
View File

@ -253,7 +253,7 @@ nilfs_detach_writer(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
static inline void nilfs_put_sbinfo(struct nilfs_sb_info *sbi)
{
if (!atomic_dec_and_test(&sbi->s_count))
if (atomic_dec_and_test(&sbi->s_count))
kfree(sbi);
}