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https://github.com/kdave/btrfs-progs
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50e3858869
In convert we use trans->block_reserved >= 4096 as a threshold to commit transaction, where block_reserved is the number of new tree blocks allocated inside a transaction. The problem is, we still have a hidden bug in delayed ref implementation in btrfs-progs, when we have a large enough transaction, delayed ref may failed to find certain tree blocks in extent tree and cause transaction abort. This fix will workaround it by committing transaction at a much lower threshold. The old 4096 means 4096 new tree blocks, when using default (16K) nodesize, it's 64M, which can contain over 12k inlined data extent or csum for around 60G, or over 800K file extents. The new threshold will limit the size of new tree blocks to 2M, aligning with the chunk preallocator threshold, and reducing the possibility to hit that delayed ref bug. Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com> |
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| .. | ||
| common.c | ||
| common.h | ||
| main.c | ||
| Makefile | ||
| source-ext2.c | ||
| source-ext2.h | ||
| source-fs.c | ||
| source-fs.h | ||
| source-reiserfs.c | ||
| source-reiserfs.h | ||