From 3bc0ba4305fa99b32caac8c60df84a2f14fce228 Mon Sep 17 00:00:00 2001 From: Steven Rostedt Date: Mon, 13 Dec 2010 19:38:09 -0500 Subject: [PATCH] fs: Remove unlikely() from fget_light() 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 Cc: Al Viro Cc: Christoph Hellwig Signed-off-by: Steven Rostedt Signed-off-by: Al Viro --- fs/file_table.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/file_table.c b/fs/file_table.c index c3dee381f1b4..c3e89adf53c0 100644 --- a/fs/file_table.c +++ b/fs/file_table.c @@ -311,7 +311,7 @@ struct file *fget_light(unsigned int fd, int *fput_needed) 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();