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| author | Vadim Lobanov <vlobanov@speakeasy.net> | 2006-12-22 01:10:43 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.osdl.org> | 2006-12-22 08:55:50 -0800 |
| commit | 01b2d93ca4c495f056471189ac6c4e6ac4cbbccb (patch) | |
| tree | 86aa1aabae8207e693e31ee68b526376388a36a3 /include | |
| parent | 31fccf7fe4097e62f038bdfe8f4f68ecaea8ebe7 (diff) | |
| download | lwn-01b2d93ca4c495f056471189ac6c4e6ac4cbbccb.tar.gz lwn-01b2d93ca4c495f056471189ac6c4e6ac4cbbccb.zip | |
[PATCH] fdtable: Provide free_fdtable() wrapper
Christoph Hellwig has expressed concerns that the recent fdtable changes
expose the details of the RCU methodology used to release no-longer-used
fdtable structures to the rest of the kernel. The trivial patch below
addresses these concerns by introducing the appropriate free_fdtable()
calls, which simply wrap the release RCU usage. Since free_fdtable() is a
one-liner, it makes sense to promote it to an inline helper.
Signed-off-by: Vadim Lobanov <vlobanov@speakeasy.net>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/file.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/file.h b/include/linux/file.h index edca361f2ab4..a59001e9ea58 100644 --- a/include/linux/file.h +++ b/include/linux/file.h @@ -80,6 +80,11 @@ extern int expand_files(struct files_struct *, int nr); extern void free_fdtable_rcu(struct rcu_head *rcu); extern void __init files_defer_init(void); +static inline void free_fdtable(struct fdtable *fdt) +{ + call_rcu(&fdt->rcu, free_fdtable_rcu); +} + static inline struct file * fcheck_files(struct files_struct *files, unsigned int fd) { struct file * file = NULL; |