Commit e348e65a authored by Yubo Feng's avatar Yubo Feng Committed by Linus Torvalds
Browse files

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.

Signed-off-by: default avatarYubo Feng <fengyubo3@huawei.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Acked-by: default avatarOGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Link: http://lkml.kernel.org/r/1593308053-12702-1-git-send-email-fengyubo3@huawei.com


Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 88b2e9b0

fs/fat/file.c

+2 −2
Original line number Diff line number Diff line
@@ -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);

}

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