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| author | Kevin Wolf <kwolf@redhat.com> | 2018-06-21 18:23:16 +0200 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2018-06-29 14:20:56 +0200 |
| commit | 93f4e2ff4b31205d8bab0856631a52ed442b8b1c (patch) | |
| tree | f90cae89c305d90c47e734ea947da3d0ddb7a795 /include/block | |
| parent | 1bc5f09f2e1b2be8f6f737b8d5352b438fc41492 (diff) | |
| download | qemu-93f4e2ff4b31205d8bab0856631a52ed442b8b1c.zip qemu-93f4e2ff4b31205d8bab0856631a52ed442b8b1c.tar.gz qemu-93f4e2ff4b31205d8bab0856631a52ed442b8b1c.tar.bz2 | |
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 <kwolf@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'include/block')
| -rw-r--r-- | include/block/raw-aio.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/include/block/raw-aio.h b/include/block/raw-aio.h index 8d698cc..6799614 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 |