diff options
| author | Eric Blake <eblake@redhat.com> | 2016-07-15 17:23:06 -0600 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2016-07-20 14:24:25 +0100 |
| commit | 02aefe43cb437ae437d5df88b7f2951f21d62ead (patch) | |
| tree | 848e6a967e78e27b44ee0a3fb0de7245707df43e /block/io.c | |
| parent | dde475376317ba86e9531b7ebd9e04306e8f9bd4 (diff) | |
block: Kill .bdrv_co_discard()
Now that all drivers have a byte-based .bdrv_co_pdiscard(), we
no longer need to worry about the sector-based version. We can
also relax our minimum alignment to 1 for drivers that support it.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1468624988-423-18-git-send-email-eblake@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'block/io.c')
| -rw-r--r-- | block/io.c | 9 |
1 files changed, 2 insertions, 7 deletions
diff --git a/block/io.c b/block/io.c index 5ba0195a69..7323f0fb7b 100644 --- a/block/io.c +++ b/block/io.c @@ -2423,14 +2423,12 @@ int coroutine_fn bdrv_co_pdiscard(BlockDriverState *bs, int64_t offset, return 0; } - if (!bs->drv->bdrv_co_discard && !bs->drv->bdrv_co_pdiscard && - !bs->drv->bdrv_aio_pdiscard) { + if (!bs->drv->bdrv_co_pdiscard && !bs->drv->bdrv_aio_pdiscard) { return 0; } /* Discard is advisory, so ignore any unaligned head or tail */ - align = MAX(BDRV_SECTOR_SIZE, - MAX(bs->bl.pdiscard_alignment, bs->bl.request_alignment)); + align = MAX(bs->bl.pdiscard_alignment, bs->bl.request_alignment); assert(is_power_of_2(align)); head = MIN(count, -offset & (align - 1)); if (head) { @@ -2458,9 +2456,6 @@ int coroutine_fn bdrv_co_pdiscard(BlockDriverState *bs, int64_t offset, if (bs->drv->bdrv_co_pdiscard) { ret = bs->drv->bdrv_co_pdiscard(bs, offset, num); - } else if (bs->drv->bdrv_co_discard) { - ret = bs->drv->bdrv_co_discard(bs, offset >> BDRV_SECTOR_BITS, - num >> BDRV_SECTOR_BITS); } else { BlockAIOCB *acb; CoroutineIOCompletion co = { |