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author | Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com> | 2021-10-06 15:17:14 +0200 |
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committer | Eric Blake <eblake@redhat.com> | 2021-10-15 15:53:48 -0500 |
commit | 06f0325c5b62f80bab1c9eb50edc814158d6005e (patch) | |
tree | 7b2d0bb6a09993be5877fc6357b157294a3332b1 /block | |
parent | 16d36e299669145f3021f2912aefbc32d7f0593c (diff) | |
download | qemu-06f0325c5b62f80bab1c9eb50edc814158d6005e.zip qemu-06f0325c5b62f80bab1c9eb50edc814158d6005e.tar.gz qemu-06f0325c5b62f80bab1c9eb50edc814158d6005e.tar.bz2 |
block-backend: convert blk_foo wrappers to use int64_t bytes parameter
Convert blk_pdiscard, blk_pwrite_compressed, blk_pwrite_zeroes.
These are just wrappers for functions with int64_t argument, so allow
passing int64_t as well. Parameter type becomes wider so all callers
should be OK with it.
Note that requests exceeding INT_MAX are still restricted by
blk_check_byte_request().
Note also that we don't (and are not going to) convert blk_pwrite and
blk_pread: these functions return number of bytes on success, so to
update them, we should change return type to int64_t as well, which
will lead to investigating and updating all callers which is too much.
So, blk_pread and blk_pwrite remain unchanged.
Signed-off-by: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
Message-Id: <20211006131718.214235-9-vsementsov@virtuozzo.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
[eblake: grammar tweaks]
Signed-off-by: Eric Blake <eblake@redhat.com>
Diffstat (limited to 'block')
-rw-r--r-- | block/block-backend.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/block/block-backend.c b/block/block-backend.c index 2e6ccce..ee20ae5 100644 --- a/block/block-backend.c +++ b/block/block-backend.c @@ -1330,7 +1330,7 @@ typedef struct BlkRwCo { } BlkRwCo; int blk_pwrite_zeroes(BlockBackend *blk, int64_t offset, - int bytes, BdrvRequestFlags flags) + int64_t bytes, BdrvRequestFlags flags) { return blk_pwritev_part(blk, offset, bytes, NULL, 0, flags | BDRV_REQ_ZERO_WRITE); @@ -1637,7 +1637,7 @@ int coroutine_fn blk_co_pdiscard(BlockBackend *blk, int64_t offset, return ret; } -int blk_pdiscard(BlockBackend *blk, int64_t offset, int bytes) +int blk_pdiscard(BlockBackend *blk, int64_t offset, int64_t bytes) { int ret; @@ -2186,10 +2186,10 @@ int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset, } int blk_pwrite_compressed(BlockBackend *blk, int64_t offset, const void *buf, - int count) + int64_t bytes) { - QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, count); - return blk_pwritev_part(blk, offset, count, &qiov, 0, + QEMUIOVector qiov = QEMU_IOVEC_INIT_BUF(qiov, buf, bytes); + return blk_pwritev_part(blk, offset, bytes, &qiov, 0, BDRV_REQ_WRITE_COMPRESSED); } |