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The new block bitmap is now written using through the log for chkbfs.

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git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2163 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2002-12-05 20:30:18 +00:00
parent a576ea9bba
commit d3ca8eec8d
1 changed files with 22 additions and 4 deletions
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26
src/add-ons/kernel/file_systems/bfs/BlockAllocator.cpp
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@ -728,12 +728,30 @@ BlockAllocator::StopChecking(check_control *control)
// Should we fix errors? Were there any errors we can fix?
if (control->flags & BFS_FIX_BITMAP_ERRORS
&& (control->stats.freed != 0 || control->stats.missing != 0)) {
// if so, write the check bitmap back over the original one
// if so, write the check bitmap back over the original one,
// and use transactions here to play safe - we even use several
// transactions, so that we don't blow the maximum log size
// on large disks; since we don't need to make this atomic
fVolume->SuperBlock().used_blocks = usedBlocks;
ssize_t written = cached_write(fVolume->Device(), 1, fCheckBitmap, fNumGroups * fBlocksPerGroup, fVolume->BlockSize());
int32 blocksInBitmap = fNumGroups * fBlocksPerGroup;
int32 blockSize = fVolume->BlockSize();
if (written != size)
PRINT(("write bitmap failed: %ld, %s\n", written, strerror(written)));
for (int32 i = 0; i < blocksInBitmap; i += 512) {
Transaction transaction(fVolume, 1 + i);
int32 blocksToWrite = 512;
if (blocksToWrite + i > blocksInBitmap)
blocksToWrite = blocksInBitmap - i;
status_t status = transaction.WriteBlocks(1 + i,
(uint8 *)fCheckBitmap + i * blockSize, blocksToWrite);
if (status < B_OK) {
FATAL(("error writing bitmap: %s\n", strerror(status)));
break;
}
transaction.Done();
}
}
} else
FATAL(("BlockAllocator::CheckNextNode() didn't run through\n"));