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authorNick Piggin <nickpiggin@yahoo.com.au>2006-01-08 01:02:19 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2006-01-08 20:13:48 -0800
commit095975da26dba21698582e91e96be10f7417333f (patch)
treece1ffac556d394ef56a18faa97d38f79b07f31e2 /fs/file_table.c
parenta57004e1afb6ee03c509f1b1ec74a000682ab93b (diff)
downloadop-kernel-dev-095975da26dba21698582e91e96be10f7417333f.zip
op-kernel-dev-095975da26dba21698582e91e96be10f7417333f.tar.gz
[PATCH] rcu file: use atomic primitives
Use atomic_inc_not_zero for rcu files instead of special case rcuref. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: "Paul E. McKenney" <paulmck@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'fs/file_table.c')
-rw-r--r--fs/file_table.c8
1 files changed, 4 insertions, 4 deletions
diff --git a/fs/file_table.c b/fs/file_table.c
index c3a5e2f..6142250 100644
--- a/fs/file_table.c
+++ b/fs/file_table.c
@@ -117,7 +117,7 @@ EXPORT_SYMBOL(get_empty_filp);
void fastcall fput(struct file *file)
{
- if (rcuref_dec_and_test(&file->f_count))
+ if (atomic_dec_and_test(&file->f_count))
__fput(file);
}
@@ -166,7 +166,7 @@ struct file fastcall *fget(unsigned int fd)
rcu_read_lock();
file = fcheck_files(files, fd);
if (file) {
- if (!rcuref_inc_lf(&file->f_count)) {
+ if (!atomic_inc_not_zero(&file->f_count)) {
/* File object ref couldn't be taken */
rcu_read_unlock();
return NULL;
@@ -198,7 +198,7 @@ struct file fastcall *fget_light(unsigned int fd, int *fput_needed)
rcu_read_lock();
file = fcheck_files(files, fd);
if (file) {
- if (rcuref_inc_lf(&file->f_count))
+ if (atomic_inc_not_zero(&file->f_count))
*fput_needed = 1;
else
/* Didn't get the reference, someone's freed */
@@ -213,7 +213,7 @@ struct file fastcall *fget_light(unsigned int fd, int *fput_needed)
void put_filp(struct file *file)
{
- if (rcuref_dec_and_test(&file->f_count)) {
+ if (atomic_dec_and_test(&file->f_count)) {
security_file_free(file);
file_kill(file);
file_free(file);
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