diff options
| author | Yubo Feng <fengyubo3@huawei.com> | 2020-07-01 16:19:32 +1000 |
|---|---|---|
| committer | Stephen Rothwell <sfr@canb.auug.org.au> | 2020-07-02 08:37:54 +1000 |
| commit | 0d3d7210aef2c6f8b90cca51aa2b814ef3da98e8 (patch) | |
| tree | a7ec169fa32fb60f3fe30c72850cbc0a98b9991d | |
| parent | 963e43813d8ed1b6fb6a5ac0dac5dd8c944c93cc (diff) | |
| download | linux-0d3d7210aef2c6f8b90cca51aa2b814ef3da98e8.tar.gz linux-0d3d7210aef2c6f8b90cca51aa2b814ef3da98e8.tar.xz | |
fatfs: switch write_lock to read_lock in fat_ioctl_get_attributes
There is no need to hold write_lock in fat_ioctl_get_attributes.
write_lock may make an impact on concurrency of fat_ioctl_get_attributes.
Link: http://lkml.kernel.org/r/1593308053-12702-1-git-send-email-fengyubo3@huawei.com
Signed-off-by: Yubo Feng <fengyubo3@huawei.com>
Acked-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| -rw-r--r-- | fs/fat/file.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/fat/file.c b/fs/fat/file.c index 42134c58c87e..f9ee27cf4d7c 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); } |