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4ed0a7a3 |
| 26-Apr-2018 |
Qu Wenruo <wqu@suse.com> |
btrfs: trace: Add trace points for unused block groups This patch will add the following trace events: 1) btrfs_remove_block_group For btrfs_remove_block_group() function.
btrfs: trace: Add trace points for unused block groups This patch will add the following trace events: 1) btrfs_remove_block_group For btrfs_remove_block_group() function. Triggered when a block group is really removed. 2) btrfs_add_unused_block_group Triggered which block group is added to unused_bgs list. 3) btrfs_skip_unused_block_group Triggered which unused block group is not deleted. These trace events is pretty handy to debug case related to block group auto remove. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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#
3dca5c94 |
| 26-Apr-2018 |
Qu Wenruo <wqu@suse.com> |
btrfs: trace: Remove unnecessary fs_info parameter for btrfs__reserve_extent event class fs_info can be extracted from btrfs_block_group_cache, and all btrfs_block_group_cache is created
btrfs: trace: Remove unnecessary fs_info parameter for btrfs__reserve_extent event class fs_info can be extracted from btrfs_block_group_cache, and all btrfs_block_group_cache is created by btrfs_create_block_group_cache() with fs_info initialized, no need to worry about NULL pointer dereference. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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f46b24c9 |
| 03-Apr-2018 |
David Sterba <dsterba@suse.com> |
btrfs: use fs_info for btrfs_handle_em_exist tracepoint We really want to know to which filesystem the extent map events belong, but as it cannot be reached from the extent_map pointers,
btrfs: use fs_info for btrfs_handle_em_exist tracepoint We really want to know to which filesystem the extent map events belong, but as it cannot be reached from the extent_map pointers, we need to pass it down the callchain. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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2e63e62d |
| 03-Apr-2018 |
David Sterba <dsterba@suse.com> |
btrfs: tracepoints, use extended format with UUID where possible Most of the strings are prefixed by the UUID of the filesystem that generates the message, however there are a few events
btrfs: tracepoints, use extended format with UUID where possible Most of the strings are prefixed by the UUID of the filesystem that generates the message, however there are a few events that still opencode the macro magic and can be converted to the common macros. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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79bcb71a |
| 03-Apr-2018 |
David Sterba <dsterba@suse.com> |
btrfs: tracepoints, fix whitespace in strings The preferred style is to avoid spaces between key and value and no commas between key=values. Reviewed-by: Nikolay Borisov <nboris
btrfs: tracepoints, fix whitespace in strings The preferred style is to avoid spaces between key and value and no commas between key=values. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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#
8eec8463 |
| 03-Apr-2018 |
David Sterba <dsterba@suse.com> |
btrfs: tracepoints, drop unnecessary ULL casts The (unsigned long long) casts are not necessary since long ago. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: D
btrfs: tracepoints, drop unnecessary ULL casts The (unsigned long long) casts are not necessary since long ago. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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#
5439c7f5 |
| 03-Apr-2018 |
David Sterba <dsterba@suse.com> |
btrfs: tracepoints, use %llu instead of %Lu For consistency, use the %llu form. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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f8f8e189 |
| 03-Apr-2018 |
David Sterba <dsterba@suse.com> |
btrfs: tracepoints, use correct type for inode number The size of ino_t depends on 32/64bit architecture type. Btrfs stores the full 64bit inode anyway so we should use it. Revi
btrfs: tracepoints, use correct type for inode number The size of ino_t depends on 32/64bit architecture type. Btrfs stores the full 64bit inode anyway so we should use it. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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Revision tags: v4.16, v4.15 |
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#
4ee0d883 |
| 12-Dec-2017 |
Qu Wenruo <wqu@suse.com> |
btrfs: qgroup: Update trace events for metadata reservation Now trace_qgroup_meta_reserve() will have extra type parameter. And introduce two new trace events: 1) trace_qgr
btrfs: qgroup: Update trace events for metadata reservation Now trace_qgroup_meta_reserve() will have extra type parameter. And introduce two new trace events: 1) trace_qgroup_meta_free_all_pertrans() For btrfs_qgroup_free_meta_all_pertrans() 2) trace_qgroup_meta_convert() For btrfs_qgroup_convert_reserved_meta() Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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#
733e03a0 |
| 12-Dec-2017 |
Qu Wenruo <wqu@suse.com> |
btrfs: qgroup: Split meta rsv type into meta_prealloc and meta_pertrans Btrfs uses 2 different methods to reseve metadata qgroup space. 1) Reserve at btrfs_start_transaction() time
btrfs: qgroup: Split meta rsv type into meta_prealloc and meta_pertrans Btrfs uses 2 different methods to reseve metadata qgroup space. 1) Reserve at btrfs_start_transaction() time This is quite straightforward, caller will use the trans handler allocated to modify b-trees. In this case, reserved metadata should be kept until qgroup numbers are updated. 2) Reserve by using block_rsv first, and later btrfs_join_transaction() This is more complicated, caller will reserve space using block_rsv first, and then later call btrfs_join_transaction() to get a trans handle. In this case, before we modify trees, the reserved space can be modified on demand, and after btrfs_join_transaction(), such reserved space should also be kept until qgroup numbers are updated. Since these two types behave differently, split the original "META" reservation type into 2 sub-types: META_PERTRANS: For above case 1) META_PREALLOC: For reservations that happened before btrfs_join_transaction() of case 2) NOTE: This patch will only convert existing qgroup meta reservation callers according to its situation, not ensuring all callers are at correct timing. Such fix will be added in later patches. Signed-off-by: Qu Wenruo <wqu@suse.com> [ update comments ] Signed-off-by: David Sterba <dsterba@suse.com>
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#
64ee4e75 |
| 12-Dec-2017 |
Qu Wenruo <wqu@suse.com> |
btrfs: qgroup: Update trace events to use new separate rsv types Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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#
393da918 |
| 05-Jan-2018 |
Liu Bo <bo.li.liu@oracle.com> |
Btrfs: add tracepoint for em's EEXIST case This is adding a tracepoint 'btrfs_handle_em_exist' to help debug the subtle bugs around merge_extent_mapping. Signed-off-by: Liu Bo <
Btrfs: add tracepoint for em's EEXIST case This is adding a tracepoint 'btrfs_handle_em_exist' to help debug the subtle bugs around merge_extent_mapping. Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Reviewed-by: Josef Bacik <jbacik@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
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Revision tags: v4.13.16 |
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#
4a2d25cd |
| 23-Nov-2017 |
Nikolay Borisov <nborisov@suse.com> |
btrfs: Remove redundant FLAG_VACANCY Commit 9036c10208e1 ("Btrfs: update hole handling v2") added the FLAG_VACANCY to denote holes, however there was already a consistent way of flag
btrfs: Remove redundant FLAG_VACANCY Commit 9036c10208e1 ("Btrfs: update hole handling v2") added the FLAG_VACANCY to denote holes, however there was already a consistent way of flagging extents which represent hole - ->block_start = EXTENT_MAP_HOLE. And also the only place where this flag is checked is in the fiemap code, but the block_start value is also checked and every other place in the filesystem detects holes by using block_start value's. So remove the extra flag. This survived a full xfstest run. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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#
5cea7647 |
| 14-Nov-2017 |
Linus Torvalds <torvalds@linux-foundation.org> |
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs updates from David Sterba: "There are some new user features and the usual load of invisi
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux Pull btrfs updates from David Sterba: "There are some new user features and the usual load of invisible enhancements or cleanups. 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" * 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (102 commits) btrfs: Fix bug for misused dev_t when lookup in dev state hash table. Btrfs: heuristic: add Shannon entropy calculation Btrfs: heuristic: add byte core set calculation Btrfs: heuristic: add byte set calculation Btrfs: heuristic: add detection of repeated data patterns Btrfs: heuristic: implement sampling logic Btrfs: heuristic: add bucket and sample counters and other defines Btrfs: compression: separate heuristic/compression workspaces btrfs: move btrfs_truncate_block out of trans handle btrfs: don't call btrfs_start_delalloc_roots in flushoncommit btrfs: track refs in a rb_tree instead of a list btrfs: add a comp_refs() helper btrfs: switch args for comp_*_refs btrfs: make the delalloc block rsv per inode btrfs: add tracepoints for outstanding extents mods Btrfs: rework outstanding_extents btrfs: increase output size for LOGICAL_INO_V2 ioctl btrfs: add a flags argument to LOGICAL_INO and call it LOGICAL_INO_V2 btrfs: add a flag to iterate_inodes_from_logical to find all extent refs for uncompressed extents btrfs: send: remove unused code ...
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Revision tags: v4.14 |
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#
b2441318 |
| 01-Nov-2017 |
Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools
License cleanup: add SPDX GPL-2.0 license identifier to files with no license Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
dd48d407 |
| 19-Oct-2017 |
Josef Bacik <josef@toxicpanda.com> |
btrfs: add tracepoints for outstanding extents mods This is handy for tracing problems with modifying the outstanding extents counters. Signed-off-by: Josef Bacik <jbacik@fb.com
btrfs: add tracepoints for outstanding extents mods This is handy for tracing problems with modifying the outstanding extents counters. Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: David Sterba <dsterba@suse.com>
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Revision tags: v4.13.5 |
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#
d278850e |
| 29-Sep-2017 |
Josef Bacik <josef@toxicpanda.com> |
btrfs: remove delayed_ref_node from ref_head This is just excessive information in the ref_head, and makes the code complicated. It is a relic from when we had the heads and the refs in
btrfs: remove delayed_ref_node from ref_head This is just excessive information in the ref_head, and makes the code complicated. It is a relic from when we had the heads and the refs in the same tree, which is no longer the case. With this removal I've cleaned up a bunch of the cruft around this old assumption as well. Signed-off-by: Josef Bacik <jbacik@fb.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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Revision tags: v4.13 |
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#
012e513e |
| 30-Aug-2017 |
Anand Jain <anand.jain@oracle.com> |
btrfs: declare TRACE_DEFINE_ENUM for each of show_flush_state enum So that perf can show the state symbol. Signed-off-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: David S
btrfs: declare TRACE_DEFINE_ENUM for each of show_flush_state enum So that perf can show the state symbol. Signed-off-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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#
b94417ea |
| 12-Aug-2017 |
Anand Jain <anand.jain@oracle.com> |
btrfs: use BTRFS_FSID_SIZE for fsid We have define for FSID size so use it. Signed-off-by: Anand Jain <anand.jain@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
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#
7bdd6277 |
| 11-Jul-2017 |
Nikolay Borisov <nborisov@suse.com> |
btrfs: Remove redundant argument of flush_space All callers of flush_space pass the same number for orig/num_bytes arguments. Let's remove one of the numbers and also modify the trace
btrfs: Remove redundant argument of flush_space All callers of flush_space pass the same number for orig/num_bytes arguments. Let's remove one of the numbers and also modify the trace point to show only a single number - bytes requested. Seems that last point where the two parameters were treated differently is before the ticketed enospc rework. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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#
00142756 |
| 12-Jul-2017 |
Jeff Mahoney <jeffm@suse.com> |
btrfs: backref, add tracepoints for prelim_ref insertion and merging This patch adds a tracepoint event for prelim_ref insertion and merging. For each, the ref being inserted or merged
btrfs: backref, add tracepoints for prelim_ref insertion and merging This patch adds a tracepoint event for prelim_ref insertion and merging. For each, the ref being inserted or merged and the count of tree nodes is issued. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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Revision tags: v4.12 |
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#
9a35b637 |
| 28-Jun-2017 |
Jeff Mahoney <jeffm@suse.com> |
btrfs: constify tracepoint arguments Tracepoint arguments are all read-only. If we mark the arguments as const, we're able to keep or convert those arguments to const where appropri
btrfs: constify tracepoint arguments Tracepoint arguments are all read-only. If we mark the arguments as const, we're able to keep or convert those arguments to const where appropriate. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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Revision tags: v4.10.17, v4.10.16, v4.10.15 |
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#
62b163f0 |
| 04-May-2017 |
Anand Jain <anand.jain@oracle.com> |
btrfs: cleanup unused qgroup trace event Commit 81fb6f77a026 (btrfs: qgroup: Add new trace point for qgroup data reserve) added the following events which aren't used. btrfs__qgrou
btrfs: cleanup unused qgroup trace event Commit 81fb6f77a026 (btrfs: qgroup: Add new trace point for qgroup data reserve) added the following events which aren't used. btrfs__qgroup_data_map btrfs_qgroup_init_data_rsv_map btrfs_qgroup_free_data_rsv_map So remove them. CC: quwenruo@cn.fujitsu.com Signed-off-by: Anand Jain <anand.jain@oracle.com> Reviewed-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
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Revision tags: v4.10.14, v4.10.13, v4.10.12, v4.10.11, v4.10.10, v4.10.9, v4.10.8, v4.10.7, v4.10.6, v4.10.5, v4.10.4, v4.10.3 |
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#
3159fe7b |
| 13-Mar-2017 |
Qu Wenruo <quwenruo@cn.fujitsu.com> |
btrfs: qgroup: Add trace point for qgroup reserved space Introduce the following trace points: qgroup_update_reserve qgroup_meta_reserve These trace points are handy to trac
btrfs: qgroup: Add trace point for qgroup reserved space Introduce the following trace points: qgroup_update_reserve qgroup_meta_reserve These trace points are handy to trace qgroup reserve space related problems. Also export btrfs_qgroup structure, as now we directly pass btrfs_qgroup structure to trace points, so that structure needs to be exported. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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Revision tags: v4.10.2 |
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#
09ed2f16 |
| 10-Mar-2017 |
Liu Bo <bo.li.liu@oracle.com> |
Btrfs: add file item tracepoints While debugging truncate problems, I found that these tracepoints could help us quickly know what went wrong. Two sets of tracepoints are create
Btrfs: add file item tracepoints While debugging truncate problems, I found that these tracepoints could help us quickly know what went wrong. Two sets of tracepoints are created to track regular/prealloc file item and inline file item respectively, I put inline as a separate one since what inline file items cares about are way less than the regular one. This adds four tracepoints: - btrfs_get_extent_show_fi_regular - btrfs_get_extent_show_fi_inline - btrfs_truncate_show_fi_regular - btrfs_truncate_show_fi_inline Cc: David Sterba <dsterba@suse.cz> Signed-off-by: Liu Bo <bo.li.liu@oracle.com> Reviewed-by: David Sterba <dsterba@suse.com> [ formatting adjustments ] Signed-off-by: David Sterba <dsterba@suse.com>
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