Btrfs: Fix uninitialized root flags for subvolumes

[firefly-linux-kernel-4.4.55.git] / fs / aio.c

diff --git a/fs/aio.c b/fs/aio.c
index 02a2c9340573cf5946e0083187353d4517319844..22a19ad1d42a05a4829c078b0782c8b601dece8c 100644 (file)
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -497,7 +497,7 @@ static inline void really_put_req(struct kioctx *ctx, struct kiocb *req)
        ctx->reqs_active--;
 
        if (unlikely(!ctx->reqs_active && ctx->dead))
-               wake_up(&ctx->wait);
+               wake_up_all(&ctx->wait);
 }
 
 static void aio_fput_routine(struct work_struct *data)
@@ -1219,7 +1219,7 @@ static void io_destroy(struct kioctx *ioctx)
         * by other CPUs at this point.  Right now, we rely on the
         * locking done by the above calls to ensure this consistency.
         */
-       wake_up(&ioctx->wait);
+       wake_up_all(&ioctx->wait);
        put_ioctx(ioctx);       /* once for the lookup */
 }
 
@@ -1639,6 +1639,9 @@ SYSCALL_DEFINE3(io_submit, aio_context_t, ctx_id, long, nr,
        if (unlikely(nr < 0))
                return -EINVAL;
 
+       if (unlikely(nr > LONG_MAX/sizeof(*iocbpp)))
+               nr = LONG_MAX/sizeof(*iocbpp);
+
        if (unlikely(!access_ok(VERIFY_READ, iocbpp, (nr*sizeof(*iocbpp)))))
                return -EFAULT;