Messages in this thread Patch in this message | | | From | fengyubo <> | Subject | [PATCH] fatfs: switch write_lock to read_lock in fat_ioctl_get_attributes | Date | Sun, 28 Jun 2020 09:34:13 +0800 |
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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
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