From 93f4e2ff4b31205d8bab0856631a52ed442b8b1c Mon Sep 17 00:00:00 2001 From: Kevin Wolf Date: Thu, 21 Jun 2018 18:23:16 +0200 Subject: file-posix: Make .bdrv_co_truncate asynchronous This moves the code to resize an image file to the thread pool to avoid blocking. Creating large images with preallocation with blockdev-create is now actually a background job instead of blocking the monitor (and most other things) until the preallocation has completed. Signed-off-by: Kevin Wolf Reviewed-by: Stefan Hajnoczi --- include/block/raw-aio.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) (limited to 'include') diff --git a/include/block/raw-aio.h b/include/block/raw-aio.h index 8d698ccd31..6799614e56 100644 --- a/include/block/raw-aio.h +++ b/include/block/raw-aio.h @@ -26,6 +26,7 @@ #define QEMU_AIO_DISCARD 0x0010 #define QEMU_AIO_WRITE_ZEROES 0x0020 #define QEMU_AIO_COPY_RANGE 0x0040 +#define QEMU_AIO_TRUNCATE 0x0080 #define QEMU_AIO_TYPE_MASK \ (QEMU_AIO_READ | \ QEMU_AIO_WRITE | \ @@ -33,7 +34,8 @@ QEMU_AIO_FLUSH | \ QEMU_AIO_DISCARD | \ QEMU_AIO_WRITE_ZEROES | \ - QEMU_AIO_COPY_RANGE) + QEMU_AIO_COPY_RANGE | \ + QEMU_AIO_TRUNCATE) /* AIO flags */ #define QEMU_AIO_MISALIGNED 0x1000 -- cgit v1.2.3-55-g7522