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block: Add PreallocMode to blk_truncate()

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blk_truncate() itself will pass that value to bdrv_truncate(), and all
callers of blk_truncate() just set the parameter to PREALLOC_MODE_OFF
for now.

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20170613202107.10125-4-mreitz@redhat.com
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Max Reitz 2017-06-13 22:20:54 +02:00
parent 7ea37c3066
commit 3a691c50f1
15 changed files with 27 additions and 21 deletions
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2
block/qed.c
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@ -583,7 +583,7 @@ static int qed_create(const char *filename, uint32_t cluster_size,
blk_set_allow_write_beyond_eof(blk, true);
/* File must start empty and grow, check truncate is supported */
ret = blk_truncate(blk, 0, errp);
ret = blk_truncate(blk, 0, PREALLOC_MODE_OFF, errp);
if (ret < 0) {
goto out;
}