ksmbd: use locks_inode_context helper

ksmbd currently doesn't access i_flctx safely. This requires a
smp_load_acquire, as the pointer is set via cmpxchg (a release
operation).

Cc: Steve French <sfrench@samba.org>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
This commit is contained in:
Jeff Layton 2022-11-16 08:50:52 -05:00
parent a1fde8ee77
commit 87f00aba21

View File

@ -321,7 +321,7 @@ static int check_lock_range(struct file *filp, loff_t start, loff_t end,
unsigned char type)
{
struct file_lock *flock;
struct file_lock_context *ctx = file_inode(filp)->i_flctx;
struct file_lock_context *ctx = locks_inode_context(file_inode(filp));
int error = 0;
if (!ctx || list_empty_careful(&ctx->flc_posix))