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[PATCH 16/18] block: Add blk_co_truncate()
From: |
Alberto Faria |
Subject: |
[PATCH 16/18] block: Add blk_co_truncate() |
Date: |
Tue, 17 May 2022 12:39:05 +0100 |
Also convert blk_truncate() into a generated_co_wrapper.
Signed-off-by: Alberto Faria <afaria@redhat.com>
---
block/block-backend.c | 7 ++++---
include/sysemu/block-backend-io.h | 8 ++++++--
tests/unit/test-block-iothread.c | 14 ++++++++++++++
3 files changed, 24 insertions(+), 5 deletions(-)
diff --git a/block/block-backend.c b/block/block-backend.c
index 7bad42259e..52be1d9116 100644
--- a/block/block-backend.c
+++ b/block/block-backend.c
@@ -2303,8 +2303,9 @@ int coroutine_fn blk_co_pwrite_compressed(BlockBackend
*blk, int64_t offset,
BDRV_REQ_WRITE_COMPRESSED);
}
-int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
- PreallocMode prealloc, BdrvRequestFlags flags, Error **errp)
+int coroutine_fn blk_co_truncate(BlockBackend *blk, int64_t offset, bool exact,
+ PreallocMode prealloc, BdrvRequestFlags flags,
+ Error **errp)
{
IO_OR_GS_CODE();
if (!blk_is_available(blk)) {
@@ -2312,7 +2313,7 @@ int blk_truncate(BlockBackend *blk, int64_t offset, bool
exact,
return -ENOMEDIUM;
}
- return bdrv_truncate(blk->root, offset, exact, prealloc, flags, errp);
+ return bdrv_co_truncate(blk->root, offset, exact, prealloc, flags, errp);
}
int blk_save_vmstate(BlockBackend *blk, const uint8_t *buf,
diff --git a/include/sysemu/block-backend-io.h
b/include/sysemu/block-backend-io.h
index bb1ae25863..004493ec36 100644
--- a/include/sysemu/block-backend-io.h
+++ b/include/sysemu/block-backend-io.h
@@ -183,7 +183,11 @@ int generated_co_wrapper blk_pwrite_zeroes(BlockBackend
*blk, int64_t offset,
BdrvRequestFlags flags);
int coroutine_fn blk_co_pwrite_zeroes(BlockBackend *blk, int64_t offset,
int64_t bytes, BdrvRequestFlags flags);
-int blk_truncate(BlockBackend *blk, int64_t offset, bool exact,
- PreallocMode prealloc, BdrvRequestFlags flags, Error **errp);
+int generated_co_wrapper blk_truncate(BlockBackend *blk, int64_t offset,
+ bool exact, PreallocMode prealloc,
+ BdrvRequestFlags flags, Error **errp);
+int coroutine_fn blk_co_truncate(BlockBackend *blk, int64_t offset, bool exact,
+ PreallocMode prealloc, BdrvRequestFlags flags,
+ Error **errp);
#endif /* BLOCK_BACKEND_IO_H */
diff --git a/tests/unit/test-block-iothread.c b/tests/unit/test-block-iothread.c
index d701c5a056..9b7353ce89 100644
--- a/tests/unit/test-block-iothread.c
+++ b/tests/unit/test-block-iothread.c
@@ -298,6 +298,19 @@ static void test_sync_op_truncate(BdrvChild *c)
c->bs->open_flags |= BDRV_O_RDWR;
}
+static void test_sync_op_blk_truncate(BlockBackend *blk)
+{
+ int ret;
+
+ /* Normal success path */
+ ret = blk_truncate(blk, 65536, false, PREALLOC_MODE_OFF, 0, NULL);
+ g_assert_cmpint(ret, ==, 0);
+
+ /* Early error: Negative offset */
+ ret = blk_truncate(blk, -2, false, PREALLOC_MODE_OFF, 0, NULL);
+ g_assert_cmpint(ret, ==, -EINVAL);
+}
+
static void test_sync_op_block_status(BdrvChild *c)
{
int ret;
@@ -425,6 +438,7 @@ const SyncOpTest sync_op_tests[] = {
}, {
.name = "/sync-op/truncate",
.fn = test_sync_op_truncate,
+ .blkfn = test_sync_op_blk_truncate,
}, {
.name = "/sync-op/block_status",
.fn = test_sync_op_block_status,
--
2.35.3
- [PATCH 13/18] block: Implement blk_pdiscard() using generated_co_wrapper, (continued)
- [PATCH 13/18] block: Implement blk_pdiscard() using generated_co_wrapper, Alberto Faria, 2022/05/17
- [PATCH 12/18] block: Implement blk_pwrite_zeroes() using generated_co_wrapper, Alberto Faria, 2022/05/17
- [PATCH 15/18] block: Add blk_co_ioctl(), Alberto Faria, 2022/05/17
- [PATCH 14/18] block: Implement blk_flush() using generated_co_wrapper, Alberto Faria, 2022/05/17
- [PATCH 17/18] block: Reorganize some declarations in block-backend-io.h, Alberto Faria, 2022/05/17
- [PATCH 16/18] block: Add blk_co_truncate(),
Alberto Faria <=