The patch titled
vfs: remove unlikely() from fget_light()
has been removed from the -mm tree. Its filename was
vfs-remove-unlikely-from-fget_light.patch
This patch was dropped because it was merged into mainline or a subsystem tree
The current -mm tree may be found at http://userweb.kernel.org/~akpm/mmotm/
------------------------------------------------------
Subject: vfs: remove unlikely() from fget_light()
From: Steven Rostedt <srostedt@xxxxxxxxxx>
There's an unlikely() in fget_light() that assumes the file ref count will
be 1. Running the annotate branch profiler on a desktop that is
performing daily tasks (running firefox, evolution, xchat and is also part
of a distcc farm), it shows that the ref count is not 1 that often.
correct incorrect % Function File Line
------- --------- - -------- ---- ----
1035099358 6209599193 85 fget_light file_table.c 315
Signed-off-by: Steven Rostedt <rostedt@xxxxxxxxxxx>
Cc: Al Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/file_table.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN fs/file_table.c~vfs-remove-unlikely-from-fget_light fs/file_table.c
--- a/fs/file_table.c~vfs-remove-unlikely-from-fget_light
+++ a/fs/file_table.c
@@ -311,7 +311,7 @@ struct file *fget_light(unsigned int fd,
struct files_struct *files = current->files;
*fput_needed = 0;
- if (likely((atomic_read(&files->count) == 1))) {
+ if (atomic_read(&files->count) == 1) {
file = fcheck_files(files, fd);
} else {
rcu_read_lock();
_
Patches currently in -mm which might be from srostedt@xxxxxxxxxx are
origin.patch
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