Commit 8603ec81 authored May 06, 2007 by Jeff Dike Committed by Linus Torvalds May 07, 2007

uml: aIO deadlock avoidance



Allow deadlocks to be avoided in the AIO code by setting the pipe to the I/O
thread non-blocking.

Signed-off-by: Jeff Dike <jdike@linux.intel.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent a6ea4cce

arch/um/os-Linux/aio.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -221,6 +221,11 @@ static int init_aio_24(void)

		aio_req_fd_w = fds[0];
		aio_req_fd_r = fds[1];

		err = os_set_fd_block(aio_req_fd_w, 0);
		if(err)
		goto out_close_pipe;

		err = run_helper_thread(not_aio_thread, NULL,
		CLONE_FILES \| CLONE_VM \| SIGCHLD, &stack, 0);
		if(err < 0)