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()
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commit
6c30c53fd5
2 changed files with 3 additions and 1 deletions
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@ -416,8 +416,10 @@ int nilfs_attach_checkpoint(struct nilfs_sb_info *sbi, __u64 cno)
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if (unlikely(err))
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goto failed;
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down_read(&nilfs->ns_segctor_sem);
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err = nilfs_cpfile_get_checkpoint(nilfs->ns_cpfile, cno, 0, &raw_cp,
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&bh_cp);
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up_read(&nilfs->ns_segctor_sem);
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if (unlikely(err)) {
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if (err == -ENOENT || err == -EINVAL) {
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printk(KERN_ERR
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@ -253,7 +253,7 @@ nilfs_detach_writer(struct the_nilfs *nilfs, struct nilfs_sb_info *sbi)
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static inline void nilfs_put_sbinfo(struct nilfs_sb_info *sbi)
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{
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if (!atomic_dec_and_test(&sbi->s_count))
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if (atomic_dec_and_test(&sbi->s_count))
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kfree(sbi);
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}
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