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[Qemu-devel] [STABLE][PATCH 12/14] vpc: Use bdrv_(p)write_sync for metad
From: |
Kevin Wolf |
Subject: |
[Qemu-devel] [STABLE][PATCH 12/14] vpc: Use bdrv_(p)write_sync for metadata writes |
Date: |
Wed, 14 Jul 2010 13:24:11 +0200 |
Use bdrv_(p)write_sync to ensure metadata integrity in case of a crash.
Signed-off-by: Kevin Wolf <address@hidden>
(cherry picked from commit 078a458e077d6b0db262c4b05fee51d01de2d1d2)
Conflicts:
block/vpc.c
Signed-off-by: Kevin Wolf <address@hidden>
---
block/vpc.c | 9 +++++----
1 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/block/vpc.c b/block/vpc.c
index afe6f1a..9e0acf4 100644
--- a/block/vpc.c
+++ b/block/vpc.c
@@ -266,7 +266,7 @@ static inline int64_t get_sector_offset(BlockDriverState
*bs,
s->last_bitmap_offset = bitmap_offset;
memset(bitmap, 0xff, s->bitmap_size);
- bdrv_pwrite(s->hd, bitmap_offset, bitmap, s->bitmap_size);
+ bdrv_pwrite_sync(s->hd, bitmap_offset, bitmap, s->bitmap_size);
}
// printf("sector: %" PRIx64 ", index: %x, offset: %x, bioff: %" PRIx64 ",
bloff: %" PRIx64 "\n",
@@ -316,7 +316,7 @@ static int rewrite_footer(BlockDriverState* bs)
BDRVVPCState *s = bs->opaque;
int64_t offset = s->free_data_block_offset;
- ret = bdrv_pwrite(s->hd, offset, s->footer_buf, HEADER_SIZE);
+ ret = bdrv_pwrite_sync(s->hd, offset, s->footer_buf, HEADER_SIZE);
if (ret < 0)
return ret;
@@ -351,7 +351,8 @@ static int64_t alloc_block(BlockDriverState* bs, int64_t
sector_num)
// Initialize the block's bitmap
memset(bitmap, 0xff, s->bitmap_size);
- bdrv_pwrite(s->hd, s->free_data_block_offset, bitmap, s->bitmap_size);
+ bdrv_pwrite_sync(s->hd, s->free_data_block_offset, bitmap,
+ s->bitmap_size);
// Write new footer (the old one will be overwritten)
s->free_data_block_offset += s->block_size + s->bitmap_size;
@@ -362,7 +363,7 @@ static int64_t alloc_block(BlockDriverState* bs, int64_t
sector_num)
// Write BAT entry to disk
bat_offset = s->bat_offset + (4 * index);
bat_value = be32_to_cpu(s->pagetable[index]);
- ret = bdrv_pwrite(s->hd, bat_offset, &bat_value, 4);
+ ret = bdrv_pwrite_sync(s->hd, bat_offset, &bat_value, 4);
if (ret < 0)
goto fail;
--
1.7.1.1
- [Qemu-devel] [STABLE][PATCH 02/14] qcow2: Fix creation of large images, (continued)
- [Qemu-devel] [STABLE][PATCH 02/14] qcow2: Fix creation of large images, Kevin Wolf, 2010/07/14
- [Qemu-devel] [STABLE][PATCH 05/14] block/vpc: Fix conversion from size to disk geometry, Kevin Wolf, 2010/07/14
- [Qemu-devel] [STABLE][PATCH 06/14] block/vdi: Fix image opening and creation for odd disk sizes, Kevin Wolf, 2010/07/14
- [Qemu-devel] [STABLE][PATCH 07/14] qcow2: Restore L1 entry on l2_allocate failure, Kevin Wolf, 2010/07/14
- [Qemu-devel] [STABLE][PATCH 09/14] qcow: Use bdrv_(p)write_sync for metadata writes, Kevin Wolf, 2010/07/14
- [Qemu-devel] [STABLE][PATCH 08/14] block: Add bdrv_(p)write_sync, Kevin Wolf, 2010/07/14
- [Qemu-devel] [STABLE][PATCH 11/14] vmdk: Use bdrv_(p)write_sync for metadata writes, Kevin Wolf, 2010/07/14
- [Qemu-devel] [STABLE][PATCH 10/14] qcow2: Use bdrv_(p)write_sync for metadata writes, Kevin Wolf, 2010/07/14
- [Qemu-devel] [STABLE][PATCH 13/14] block: Fix early failure in multiwrite, Kevin Wolf, 2010/07/14
- [Qemu-devel] [STABLE][PATCH 14/14] block: Handle multiwrite errors only when all requests have completed, Kevin Wolf, 2010/07/14
- [Qemu-devel] [STABLE][PATCH 12/14] vpc: Use bdrv_(p)write_sync for metadata writes,
Kevin Wolf <=
- Re: [Qemu-devel] [STABLE][PULL 00/14] Block patches for 0.12.5, Aurelien Jarno, 2010/07/14