Messages in this thread | | | From | David Sterba <> | Subject | [GIT PULL] Btrfs changes for 4.15 | Date | Mon, 13 Nov 2017 16:35:23 +0100 |
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Hi,
please pull the following btrfs changes. There are some new user features and the usual load of invisible enhancements or cleanups. The branch merges cleanly, has been frozen in case rc7 was the last one, so I send out the pull request early. Thanks.
New features:
- extend mount options to specify zlib compression level, -o compress=zlib:9
- v2 of ioctl "extent to inode mapping", addressing a usecase where we want to retrieve more but inaccurate results and do the postprocessing in userspace, aiding defragmentation or deduplication tools
- populate compression heuristics logic, do data sampling and try to guess compressibility by: looking for repeated patterns, counting unique byte values and distribution, calculating Shannon entropy; this will need more benchmarking and possibly fine tuning, but the base should be good enough
- enable indexing for btrfs as lower filesystem in overlayfs
- speedup page cache readahead during send on large files
Internal enhancements:
- more sanity checks of b-tree items when reading them from disk
- more EINVAL/EUCLEAN fixups, missing BLK_STS_* conversion, other errno or error handling fixes
- remove some homegrown IO-related logic, that's been obsoleted by core block layer changes (batching, plug/unplug, own counters)
- add ref-verify, optional debugging feature to verify extent reference accounting
- simplify code handling outstanding extents, make it more clear where and how the accounting is done
- make delalloc reservations per-inode, simplify the code and make the logic more straightforward
- extensive cleanup of delayed refs code
Notable fixes:
- fix send ioctl on 32bit with 64bit kernel
The branch top commit matches the signed tag for-4.15-tag.
---------------------------------------------------------------- The following changes since commit 0b07194bb55ed836c2cc7c22e866b87a14681984:
Linux 4.14-rc7 (2017-10-29 13:58:38 -0700)
are available in the Git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux.git for-4.15
for you to fetch changes up to d28e649a5c58b779b303c252c66ee84a0f2c3b32:
btrfs: Fix bug for misused dev_t when lookup in dev state hash table. (2017-11-01 20:45:36 +0100)
---------------------------------------------------------------- Adam Borowski (1): btrfs: allow setting zlib compression level via :9
Allen Pais (1): btrfs: return -ENOMEM on allocation failure in btrfsic
Anand Jain (13): btrfs: declare TRACE_DEFINE_ENUM for each of show_flush_state enum btrfs: copy fsid to super_block s_uuid btrfs: undo writable superblocke when sprouting fails btrfs: fix BUG_ON in btrfs_init_new_device() btrfs: error out if btrfs_attach_transaction() fails btrfs: add_missing_dev() should return the actual error btrfs: fix EIO misuse to report missing degraded option btrfs: declare btrfs_report_missing_device() static btrfs: fix use of error or warning for missing device btrfs: use BLK_STS defines where needed btrfs: use need_full_stripe() in __btrfs_map_block() btrfs: fix false EIO for missing device btrfs: remove BUG_ON in btrfs_rm_dev_replace_free_srcdev()
Arnd Bergmann (1): btrfs: tree-checker: use %zu format string for size_t
Christophe JAILLET (1): btrfs: tests: Fix a memory leak in error handling path in 'run_test()'
Christos Gkekas (2): btrfs: Clean up dead code in root-tree btrfs: Clean up unused variables in free-space-tree.c
Colin Ian King (2): btrfs: avoid null pointer dereference on fs_info when calling btrfs_crit btrfs: make array types static const, reduces object code size
David Sterba (4): btrfs: scrub: get rid of sector_t btrfs: rename page offset parameter in submit_extent_page btrfs: get rid of sector_t and use u64 offset in submit_extent_page btrfs: allow to set compression level for zlib
Goldwyn Rodrigues (1): btrfs: cleanup extent locking sequence
Gu JinXiang (2): btrfs: Use bd_dev to generate index when dev_state_hashtable add items. btrfs: Fix bug for misused dev_t when lookup in dev state hash table.
Hans van Kranenburg (1): btrfs: prefix sysfs attribute struct names
Josef Bacik (22): btrfs: change how we decide to commit transactions during flushing btrfs: fix send ioctl on 32bit with 64bit kernel btrfs: add ref-verify mount option btrfs: pass root to various extent ref mod functions Btrfs: add a extent ref verify tool Btrfs: only check delayed ref usage in should_end_transaction btrfs: add a helper to return a head ref btrfs: move extent_op cleanup to a helper btrfs: breakout empty head cleanup to a helper btrfs: move ref_mod modification into the if (ref) logic btrfs: move all ref head cleanup to the helper function btrfs: remove delayed_ref_node from ref_head btrfs: remove type argument from comp_tree_refs btrfs: add assertions for releasing trans handle reservations Btrfs: rework outstanding_extents btrfs: add tracepoints for outstanding extents mods btrfs: make the delalloc block rsv per inode btrfs: switch args for comp_*_refs btrfs: add a comp_refs() helper btrfs: track refs in a rb_tree instead of a list btrfs: don't call btrfs_start_delalloc_roots in flushoncommit btrfs: move btrfs_truncate_block out of trans handle
Kuanling Huang (1): Btrfs: send, apply asynchronous page cache readahead to enhance page read
Liu Bo (13): Btrfs: remove batch plug in run_scheduled_IO Btrfs: move finish_wait out of the loop Btrfs: use wait_event instead of a single function Btrfs: protect conditions within root->log_mutex while waiting Btrfs: search parity device wisely Btrfs: do not async submit for nodatasum inodes Btrfs: make plug in writing meta blocks really work Btrfs: remove bio_flags which indicates a meta block of log-tree Btrfs: fix confusing worker helper info in stacktrace Btrfs: fix memory leak in raid56 Btrfs: remove nr_async_bios Btrfs: do not make defrag wait on async_delalloc_pages Btrfs: remove nr_async_submits and async_submit_draining
Nikolay Borisov (11): btrfs: Remove redundant forward declarations btrfs: Remove unused variable btrfs: Remove unused parameters from various functions btrfs: Remove unused arguments from btrfs_changed_cb_t btrfs: Remove unused parameter from check_direct_IO btrfs: Rework error handling of add_extent_mapping in __btrfs_alloc_chunk btrfs: Remove redundant argument of __link_block_group btrfs: Explicitly handle btrfs_update_root failure btrfs: Refactor transaction handling in received subvolume ioctl btrfs: Replace opencoded sizes with their symbolic constants btrfs: send: remove unused code
Omar Sandoval (2): Btrfs: make some volumes.c functions static Btrfs: fix __user casting in ioctl.c
Qu Wenruo (9): btrfs: Refactor check_leaf function for later expansion btrfs: Check if item pointer overlaps with the item itself btrfs: Add sanity check for EXTENT_DATA when reading out leaf btrfs: Add checker for EXTENT_CSUM btrfs: Move leaf and node validation checker to tree-checker.c btrfs: tree-checker: Enhance btrfs_check_node output btrfs: tree-checker: Enhance output for btrfs_check_leaf btrfs: tree-checker: Enhance output for check_csum_item btrfs: tree-checker: Enhance output for check_extent_data_item
Rakesh Pandit (1): btrfs: use appropriate replacements for __sb_{start,end}_write calls
Satoru Takeuchi (1): btrfs: convert all mount option checking code to use btrfs_test_opt
Thomas Meyer (1): btrfs: Fix bool initialization/comparison
Timofey Titovets (9): Btrfs: cleanup 'start' subtraction from try uncompressed inline extent Btrfs: compress_file_range remove dead variable num_bytes Btrfs: compression: separate heuristic/compression workspaces Btrfs: heuristic: add bucket and sample counters and other defines Btrfs: heuristic: implement sampling logic Btrfs: heuristic: add detection of repeated data patterns Btrfs: heuristic: add byte set calculation Btrfs: heuristic: add byte core set calculation Btrfs: heuristic: add Shannon entropy calculation
Zygo Blaxell (3): btrfs: add a flag to iterate_inodes_from_logical to find all extent refs for uncompressed extents btrfs: add a flags argument to LOGICAL_INO and call it LOGICAL_INO_V2 btrfs: increase output size for LOGICAL_INO_V2 ioctl
fs/btrfs/Kconfig | 11 + fs/btrfs/Makefile | 3 +- fs/btrfs/async-thread.c | 2 +- fs/btrfs/backref.c | 72 ++- fs/btrfs/backref.h | 8 +- fs/btrfs/btrfs_inode.h | 29 +- fs/btrfs/check-integrity.c | 8 +- fs/btrfs/compression.c | 493 ++++++++++++++- fs/btrfs/compression.h | 6 +- fs/btrfs/ctree.c | 17 +- fs/btrfs/ctree.h | 30 +- fs/btrfs/delayed-inode.c | 46 +- fs/btrfs/delayed-ref.c | 296 +++++---- fs/btrfs/delayed-ref.h | 54 +- fs/btrfs/disk-io.c | 227 ++----- fs/btrfs/extent-tree.c | 829 ++++++++++++------------- fs/btrfs/extent_io.c | 44 +- fs/btrfs/extent_io.h | 1 - fs/btrfs/file.c | 50 +- fs/btrfs/free-space-tree.c | 4 - fs/btrfs/inode-map.c | 3 +- fs/btrfs/inode.c | 327 ++++------ fs/btrfs/ioctl.c | 156 +++-- fs/btrfs/lzo.c | 5 + fs/btrfs/ordered-data.c | 21 +- fs/btrfs/qgroup.c | 8 +- fs/btrfs/raid56.c | 30 +- fs/btrfs/ref-verify.c | 1031 ++++++++++++++++++++++++++++++++ fs/btrfs/ref-verify.h | 62 ++ fs/btrfs/relocation.c | 17 +- fs/btrfs/root-tree.c | 4 - fs/btrfs/scrub.c | 22 +- fs/btrfs/send.c | 74 +-- fs/btrfs/send.h | 2 +- fs/btrfs/super.c | 37 +- fs/btrfs/sysfs.c | 63 +- fs/btrfs/sysfs.h | 26 +- fs/btrfs/tests/free-space-tree-tests.c | 3 +- fs/btrfs/tests/inode-tests.c | 20 +- fs/btrfs/tests/qgroup-tests.c | 30 +- fs/btrfs/transaction.c | 16 +- fs/btrfs/tree-checker.c | 425 +++++++++++++ fs/btrfs/tree-checker.h | 26 + fs/btrfs/tree-log.c | 34 +- fs/btrfs/volumes.c | 168 +++--- fs/btrfs/volumes.h | 2 - fs/btrfs/zlib.c | 15 +- fs/btrfs/zstd.c | 5 + include/trace/events/btrfs.h | 41 +- include/uapi/linux/btrfs.h | 8 +- include/uapi/linux/btrfs_tree.h | 1 + 51 files changed, 3356 insertions(+), 1556 deletions(-) create mode 100644 fs/btrfs/ref-verify.c create mode 100644 fs/btrfs/ref-verify.h create mode 100644 fs/btrfs/tree-checker.c create mode 100644 fs/btrfs/tree-checker.h
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