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udf: Move handling of uniqueID into a helper function and protect it by a s_alloc_mutex

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uniqueID handling has been duplicated in three places. Move it into a common
helper. Since we modify an LVID buffer with uniqueID update, we take
sbi->s_alloc_mutex to protect agaist other modifications of the structure.

Signed-off-by: Jan Kara <jack@suse.cz>
This commit is contained in:
Jan Kara
2010-10-20 18:28:46 +02:00
parent 49521de119
commit d664b6af60
4 changed files with 47 additions and 53 deletions
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fs/udf/udfdecl.h
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@@ -125,6 +125,7 @@ static inline void udf_updated_lvid(struct super_block *sb)
sb->s_dirt = 1;
UDF_SB(sb)->s_lvid_dirty = 1;
}
extern u64 lvid_get_unique_id(struct super_block *sb);
/* namei.c */
extern int udf_write_fi(struct inode *inode, struct fileIdentDesc *,