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[Qemu-devel] [PATCH] remove dead code in bdrv_check_request
From: |
Christoph Hellwig |
Subject: |
[Qemu-devel] [PATCH] remove dead code in bdrv_check_request |
Date: |
Sat, 28 Mar 2009 19:31:09 +0100 |
User-agent: |
Mutt/1.3.28i |
Remove code dealing with negative sector numbers for byte access in
bdrv_check_request as sector numbers can't ever be negative.
Previously we supported negative sector counts for byte access, but
never sector numbers.
Signed-off-by: Christoph Hellwig <address@hidden>
Index: qemu/block.c
===================================================================
--- qemu.orig/block.c 2009-03-14 14:34:49.000000000 +0100
+++ qemu/block.c 2009-03-14 14:35:12.000000000 +0100
@@ -546,15 +546,7 @@ static int bdrv_check_byte_request(Block
static int bdrv_check_request(BlockDriverState *bs, int64_t sector_num,
int nb_sectors)
{
- int64_t offset;
-
- /* Deal with byte accesses */
- if (sector_num < 0)
- offset = -sector_num;
- else
- offset = sector_num * 512;
-
- return bdrv_check_byte_request(bs, offset, nb_sectors * 512);
+ return bdrv_check_byte_request(bs, sector_num * 512, nb_sectors * 512);
}
/* return < 0 if error. See bdrv_write() for the return codes */