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| author | Erez Zadok <ezk@cs.sunysb.edu> | 2007-02-18 23:57:45 -0500 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-19 14:21:50 -0800 |
| commit | a6e6df25ec6751f4f73784398ab7d43cf9d2019f (patch) | |
| tree | 64c2862e00a9094d5ace11b812fcf0ac506df945 | |
| parent | bc5393a6c9c0e70b4b43fb2fb63e3315e9a15c8f (diff) | |
| download | lwn-a6e6df25ec6751f4f73784398ab7d43cf9d2019f.tar.gz lwn-a6e6df25ec6751f4f73784398ab7d43cf9d2019f.zip | |
[PATCH] fs/stack.c: Copy i_nlink after all other attributes are copied
A user-specified get_nlinks may depend on other inode attributes.
Cc: Michael Halcrow <mhalcrow@us.ibm.com>
Signed-off-by: Erez Zadok <ezk@cs.sunysb.edu>
Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/stack.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/fs/stack.c b/fs/stack.c index 8ffb880d2f46..67716f6a1a4a 100644 --- a/fs/stack.c +++ b/fs/stack.c @@ -20,11 +20,6 @@ EXPORT_SYMBOL_GPL(fsstack_copy_inode_size); void fsstack_copy_attr_all(struct inode *dest, const struct inode *src, int (*get_nlinks)(struct inode *)) { - if (!get_nlinks) - dest->i_nlink = src->i_nlink; - else - dest->i_nlink = (*get_nlinks)(dest); - dest->i_mode = src->i_mode; dest->i_uid = src->i_uid; dest->i_gid = src->i_gid; @@ -34,5 +29,14 @@ void fsstack_copy_attr_all(struct inode *dest, const struct inode *src, dest->i_ctime = src->i_ctime; dest->i_blkbits = src->i_blkbits; dest->i_flags = src->i_flags; + + /* + * Update the nlinks AFTER updating the above fields, because the + * get_links callback may depend on them. + */ + if (!get_nlinks) + dest->i_nlink = src->i_nlink; + else + dest->i_nlink = (*get_nlinks)(dest); } EXPORT_SYMBOL_GPL(fsstack_copy_attr_all); |