gwj / at91sam9263 · Commits

Commit ad02ad6fda4499fdf71c82ea1c7f37fbea25985d

Authored by aliguori
1 parent e5fd43a9

Do not allow AIO to be inited multiple times 

This prevents two signalfd() threads from being spawned.  This problem was
originally spotted by Blue Swirl.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5289 c046a42c-6fe2-441c-8c8c-71466251a162
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Showing 1 changed file with 3 additions and 0 deletions
block-raw-posix.c
  View file @ad02ad6
@@ -511,6 +511,9 @@ void qemu_aio_init(void) @@ -511,6 +511,9 @@ void qemu_aio_init(void)
511 { 511 {
512 sigset_t mask; 512 sigset_t mask;
513 513
  514 + if (aio_initialized)
  515 + return;
  516 +
514 aio_initialized = 1; 517 aio_initialized = 1;
515 518
516 /* Make sure to block AIO signal */ 519 /* Make sure to block AIO signal */