diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2008-04-22 05:31:30 -0400 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2008-04-25 09:23:59 -0400 |
| commit | 3b1253880b7a9e6db54b943b2d40bcf2202f58ab (patch) | |
| tree | 5301be7b4d4310faa8db5a0d027b81421e36570e /include/linux/file.h | |
| parent | fd8328be874f4190a811c58cd4778ec2c74d2c05 (diff) | |
[PATCH] sanitize unshare_files/reset_files_struct
* let unshare_files() give caller the displaced files_struct
* don't bother with grabbing reference only to drop it in the
caller if it hadn't been shared in the first place
* in that form unshare_files() is trivially implemented via
unshare_fd(), so we eliminate the duplicate logics in fork.c
* reset_files_struct() is not just only called for current;
it will break the system if somebody ever calls it for anything
else (we can't modify ->files of somebody else). Lose the
task_struct * argument.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/file.h')
| -rw-r--r-- | include/linux/file.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/file.h b/include/linux/file.h index 653477021e4c..69baf5a4f0a5 100644 --- a/include/linux/file.h +++ b/include/linux/file.h @@ -117,7 +117,8 @@ struct task_struct; struct files_struct *get_files_struct(struct task_struct *); void put_files_struct(struct files_struct *fs); -void reset_files_struct(struct task_struct *, struct files_struct *); +void reset_files_struct(struct files_struct *); +int unshare_files(struct files_struct **); extern struct kmem_cache *files_cachep; |