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e2fsck: Try to update on-disk bitmap in e2fsck_get_alloc_block() callback 

The e2fsck_get_alloc_block() callback is used so that if the ext2fs
library needs to allocate blocks internally (most notably by the
extents functions), e2fsck's internal block usage map is consulted
since it is the only thing that can be trusted during a large part of
e2fsck's operation.

Change it to update the on-disk bitmap if it is loaded.  This reduces
the number of spurious differences found in pass #5.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
bitmap-optimize
Theodore Ts'o 2009-11-29 01:24:06 -05:00
parent f4e14505ed
commit 8a2cbe2c6d
1 changed files with 4 additions and 0 deletions
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4
e2fsck/pass1.c
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@ -2628,6 +2628,10 @@ static errcode_t e2fsck_get_alloc_block(ext2_filsys fs, blk64_t goal,
ctx->block_found_map, &new_block);
if (retval)
return retval;
if (fs->block_map) {
ext2fs_mark_block_bitmap(fs->block_map, new_block);
ext2fs_mark_bb_dirty(fs);
}
} else {
if (!fs->block_map) {
retval = ext2fs_read_block_bitmap(fs);