lkml.org 
[lkml]   [2020]   [Jun]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] fatfs: switch write_lock to read_lock in fat_ioctl_get_attributes
Date
From: Yubo Feng <fengyubo3@huawei.com>

There is no necessery to hold write_lock in fat_ioctl_get_attributes.
write_lock may make an impact on concurrency of fat_ioctl_get_attributes.

Signed-off-by: Yubo Feng <fengyubo3@huawei.com>
---
fs/fat/file.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/fat/file.c b/fs/fat/file.c
index 42134c5..f9ee27c 100644
--- a/fs/fat/file.c
+++ b/fs/fat/file.c
@@ -25,9 +25,9 @@ static int fat_ioctl_get_attributes(struct inode *inode, u32 __user *user_attr)
{
u32 attr;

- inode_lock(inode);
+ inode_lock_shared(inode);
attr = fat_make_attrs(inode);
- inode_unlock(inode);
+ inode_unlock_shared(inode);

return put_user(attr, user_attr);
}
--
2.7.4
\
 
 \ /
  Last update: 2020-06-28 03:29    [W:0.141 / U:0.216 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site