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| author | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-09-22 14:49:01 +0000 |
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| committer | aliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162> | 2008-09-22 14:49:01 +0000 |
| commit | ad02ad6fda4499fdf71c82ea1c7f37fbea25985d (patch) | |
| tree | 49bcc84e2883fa9cc872f761676deaba7e7a6447 | |
| parent | e5fd43a9268661c19e4a743680003a181dd67e0a (diff) | |
| download | focaccia-qemu-ad02ad6fda4499fdf71c82ea1c7f37fbea25985d.tar.gz focaccia-qemu-ad02ad6fda4499fdf71c82ea1c7f37fbea25985d.zip | |
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
| -rw-r--r-- | block-raw-posix.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/block-raw-posix.c b/block-raw-posix.c index 7c42c108e7..26819a4d8c 100644 --- a/block-raw-posix.c +++ b/block-raw-posix.c @@ -511,6 +511,9 @@ void qemu_aio_init(void) { sigset_t mask; + if (aio_initialized) + return; + aio_initialized = 1; /* Make sure to block AIO signal */ |