Re: [PATCH v3 17/17] block: use int64_t instead of int in driver discard handlers

[Vladimir Sementsov-Ogievskiy]

30.04.2020 14:10, Vladimir Sementsov-Ogievskiy wrote:
We are generally moving to int64_t for both offset and bytes parameters
on all io paths.
Main motivation is realization of 64-bit write_zeroes operation for
fast zeroing large disk chunks, up to the whole disk.

We chose signed type, to be consistent with off_t (which is signed) and
with possibility for signed return type (where negative value means
error).

So, convert driver discard handlers bytes parameter to int64_t.

This patch just converts handlers where it is obvious that bytes
parameter is passed further to 64bit interfaces, and add simple
wrappers where it is not obvious.

Series: 64bit-block-status
Signed-off-by: Vladimir Sementsov-Ogievskiy<vsement...@virtuozzo.com>


squash in:

--- a/tests/test-block-iothread.c
+++ b/tests/test-block-iothread.c
@@ -48,7 +48,7 @@ static int coroutine_fn bdrv_test_co_pwritev(BlockDriverState 
*bs,
 }
 
 static int coroutine_fn bdrv_test_co_pdiscard(BlockDriverState *bs,
-                                              int64_t offset, int bytes)
+                                              int64_t offset, int64_t bytes)
 {
     return 0;
 }