On Wed, Sep 25, 2019 at 08:13:46PM +0800, Qu Wenruo wrote: > This patchset includes the following features: > > - Small fixes to improve btrfs-image error report > * Output error message for chunk tree build error > * Fix error output to show correct return value > Patch 1 and 2. > > - Reduce memory usage when decompress super block > Independent change, for current btrfs-image, it will reduce buffer > size from 256K to fixed 4K. > Patch 3. > > - Rework how we search chunk tree blocks > Instead of iterating clusters again and again for each chunk tree > block, record system chunk array and iterate clusters once for all > chunk tree blocks. > This should reduce restore time for large image dump. > Patch 4, 5 and 6. > > - Introduce data dump feature to dump the whole fs. > This will introduce a new magic number to prevent old btrfs-image to > hit failure as the item size limit is enlarged. > Patch 7 and 8. > > - Reduce memory usage for data dump restore > This is mostly due to the fact that we have much larger > max_pending_size introduced by data dump(256K -> 256M). > Using 4 * max_pending_size for each decompress thread as buffer is way > too expensive now. > Use proper inflate() to replace uncompress() calls. > Patch 9 and 10. > > Changelog: > v2: > - New small fixes: > * Fix a confusing error message due to unpopulated errno > * Output error message for chunk tree build error > > - Fix a regression of previous version > Patch "btrfs-progs: image: Rework how we search chunk tree blocks" > deleted a "ret = 0" line which could cause false early exit. > > - Reduce memory usage for data dump > > v2.1: > - Rebased to devel branch > Removing 4 already merged patches from the patchset. > > - Re-order the patchset > Put small and independent patches at the top of queue, and put the > data dump related feature at the end. > > - Fix -Wmaybe-uninitialized warnings > Strangely, D=1 won't trigger these warnings thus they sneak into v2 > without being detected. > > - Fix FROM: line > Reverted to old smtp setup. The new setup will override FROM: line, > messing up the name of author. > > v3: > - Fix a wrong option in error string > - Fix a bug that we always dump data extents > > Qu Wenruo (10): > btrfs-progs: image: Output error message for chunk tree build error > btrfs-progs: image: Fix error output to show correct return value > btrfs-progs: image: Don't waste memory when we're just extracting > super block > btrfs-progs: image: Allow restore to record system chunk ranges for > later usage > btrfs-progs: image: Introduce helper to determine if a tree block is > in the range of system chunks > btrfs-progs: image: Rework how we search chunk tree blocks > btrfs-progs: image: Introduce framework for more dump versions > btrfs-progs: image: Introduce -d option to dump data > btrfs-progs: image: Reduce memory requirement for decompression > btrfs-progs: image: Reduce memory usage for chunk tree search
Added to devel. Thanks.
