lkml.org 
[lkml]   [2008]   [Dec]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH] vfs: remove duplicate code in get_fs_type()
save 14 bytes:

text data bss dec hex filename
1354 32 4 1390 56e fs/filesystems.o.before
text data bss dec hex filename
1340 32 4 1376 560 fs/filesystems.o

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
---
fs/filesystems.c | 23 +++++++++++++----------
1 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/fs/filesystems.c b/fs/filesystems.c
index d0e20ce..d488dcd 100644
--- a/fs/filesystems.c
+++ b/fs/filesystems.c
@@ -253,24 +253,27 @@ static int __init proc_filesystems_init(void)
module_init(proc_filesystems_init);
#endif

-struct file_system_type *get_fs_type(const char *name)
+static struct file_system_type *__get_fs_type(const char *name, int len)
{
struct file_system_type *fs;
- const char *dot = strchr(name, '.');
- unsigned len = dot ? dot - name : strlen(name);

read_lock(&file_systems_lock);
fs = *(find_filesystem(name, len));
if (fs && !try_module_get(fs->owner))
fs = NULL;
read_unlock(&file_systems_lock);
- if (!fs && (request_module("%.*s", len, name) == 0)) {
- read_lock(&file_systems_lock);
- fs = *(find_filesystem(name, len));
- if (fs && !try_module_get(fs->owner))
- fs = NULL;
- read_unlock(&file_systems_lock);
- }
+ return fs;
+}
+
+struct file_system_type *get_fs_type(const char *name)
+{
+ struct file_system_type *fs;
+ const char *dot = strchr(name, '.');
+ int len = dot ? dot - name : strlen(name);
+
+ fs = __get_fs_type(name, len);
+ if (!fs && (request_module("%.*s", len, name) == 0))
+ fs = __get_fs_type(name, len);

if (dot && fs && !(fs->fs_flags & FS_HAS_SUBTYPE)) {
put_filesystem(fs);
--
1.5.4.rc3



\
 
 \ /
  Last update: 2008-12-25 06:35    [W:0.029 / U:1.160 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site