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authorVadim Lobanov <vlobanov@speakeasy.net>2006-12-22 01:10:43 -0800
committerLinus Torvalds <torvalds@woody.osdl.org>2006-12-22 08:55:50 -0800
commit01b2d93ca4c495f056471189ac6c4e6ac4cbbccb (patch)
tree86aa1aabae8207e693e31ee68b526376388a36a3 /include
parent31fccf7fe4097e62f038bdfe8f4f68ecaea8ebe7 (diff)
[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.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/file.h b/include/linux/file.h
index edca361f2ab..a59001e9ea5 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;