Roman Gushchin e33c267ab7 mm: shrinkers: provide shrinkers with names ... Currently shrinkers are anonymous objects. For debugging purposes they can be identified by count/scan function names, but it's not always useful: e.g. for superblock's shrinkers it's nice to have at least an idea of to which superblock the shrinker belongs. This commit adds names to shrinkers. register_shrinker() and prealloc_shrinker() functions are extended to take a format and arguments to master a name. In some cases it's not possible to determine a good name at the time when a shrinker is allocated. For such cases shrinker_debugfs_rename() is provided. The expected format is: <subsystem>-<shrinker_type>[:<instance>]-<id> For some shrinkers an instance can be encoded as (MAJOR:MINOR) pair. After this change the shrinker debugfs directory looks like: $ cd /sys/kernel/debug/shrinker/ $ ls dquota-cache-16 sb-devpts-28 sb-proc-47 sb-tmpfs-42 mm-shadow-18 sb-devtmpfs-5 sb-proc-48 sb-tmpfs-43 mm-zspool:zram0-34 sb-hugetlbfs-17 sb-pstore-31 sb-tmpfs-44 rcu-kfree-0 sb-hugetlbfs-33 sb-rootfs-2 sb-tmpfs-49 sb-aio-20 sb-iomem-12 sb-securityfs-6 sb-tracefs-13 sb-anon_inodefs-15 sb-mqueue-21 sb-selinuxfs-22 sb-xfs:vda1-36 sb-bdev-3 sb-nsfs-4 sb-sockfs-8 sb-zsmalloc-19 sb-bpf-32 sb-pipefs-14 sb-sysfs-26 thp-deferred_split-10 sb-btrfs:vda2-24 sb-proc-25 sb-tmpfs-1 thp-zero-9 sb-cgroup2-30 sb-proc-39 sb-tmpfs-27 xfs-buf:vda1-37 sb-configfs-23 sb-proc-41 sb-tmpfs-29 xfs-inodegc:vda1-38 sb-dax-11 sb-proc-45 sb-tmpfs-35 sb-debugfs-7 sb-proc-46 sb-tmpfs-40 [roman.gushchin@linux.dev: fix build warnings] Link: https://lkml.kernel.org/r/Yr+ZTnLb9lJk6fJO@castle Reported-by: kernel test robot <lkp@intel.com> Link: https://lkml.kernel.org/r/20220601032227.4076670-4-roman.gushchin@linux.dev Signed-off-by: Roman Gushchin <roman.gushchin@linux.dev> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Dave Chinner <dchinner@redhat.com> Cc: Hillf Danton <hdanton@sina.com> Cc: Kent Overstreet <kent.overstreet@gmail.com> Cc: Muchun Song <songmuchun@bytedance.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>		2022-07-03 18:08:40 -07:00
..
libxfs	xfs: fix variable state usage	2022-06-15 23:13:32 -07:00
scrub	xfs: implement per-mount warnings for scrub and shrink usage	2022-05-27 10:31:34 +10:00
Kconfig	xfs: fix Kconfig asking about XFS_SUPPORT_V4 when XFS_FS=n	2020-10-16 15:34:28 -07:00
Makefile	xfs: Set up infrastructure for log attribute replay	2022-05-04 12:41:02 +10:00
kmem.c	mm: introduce memalloc_retry_wait()	2022-01-15 16:30:29 +02:00
kmem.h	xfs: remove kmem_zone typedef	2021-10-22 16:00:31 -07:00
mrlock.h	…
xfs.h	…
xfs_acl.c	xfs: move xfs_attr_use_log_assist usage out of libxfs	2022-05-27 10:34:04 +10:00
xfs_acl.h	xfs: improve __xfs_set_acl	2022-04-26 13:34:42 +10:00
xfs_aops.c	Page cache changes for 5.19	2022-05-24 19:55:07 -07:00
xfs_aops.h	xfs: add a xfs_inode_buftarg helper	2019-10-28 08:37:54 -07:00
xfs_attr_inactive.c	xfs: rename _zone variables to _cache	2021-10-22 16:04:20 -07:00
xfs_attr_item.c	xfs: fix TOCTOU race involving the new logged xattrs control knob	2022-06-15 23:13:32 -07:00
xfs_attr_item.h	xfs: share xattr name and value buffers when logging xattr updates	2022-05-23 08:43:46 +10:00
xfs_attr_list.c	xfs: Set up infrastructure for log attribute replay	2022-05-04 12:41:02 +10:00
xfs_bio_io.c	Bug fixes for 5.18:	2022-04-01 19:30:44 -07:00
xfs_bmap_item.c	xfs: whiteouts release intents that are not in the AIL	2022-05-04 11:46:47 +10:00
xfs_bmap_item.h	xfs: rename _zone variables to _cache	2021-10-22 16:04:20 -07:00
xfs_bmap_util.c	xfs: Conditionally upgrade existing inodes to use large extent counters	2022-04-13 07:02:44 +00:00
xfs_bmap_util.h	xfs: kill the XFS_IOC_{ALLOC,FREE}SP* ioctls	2022-01-17 09:16:41 -08:00
xfs_buf.c	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
xfs_buf.h	xfs: convert buffer flags to unsigned.	2022-04-21 08:44:59 +10:00
xfs_buf_item.c	xfs: log items should have a xlog pointer, not a mount	2022-03-20 08:59:49 -07:00
xfs_buf_item.h	xfs: convert buffer log item flags to unsigned.	2022-04-21 10:46:40 +10:00
xfs_buf_item_recover.c	xfs: convert buf_cancel_table allocation to kmalloc_array	2022-05-27 10:27:19 +10:00
xfs_dir2_readdir.c	xfs: take the ILOCK when readdir inspects directory mapping data	2022-01-11 15:11:04 -08:00
xfs_discard.c	block: decouple REQ_OP_SECURE_ERASE from REQ_OP_DISCARD	2022-04-17 19:49:59 -06:00
xfs_discard.h	…
xfs_dquot.c	xfs: remove warning counters from struct xfs_dquot_res	2022-05-11 17:12:09 +10:00
xfs_dquot.h	xfs: remove warning counters from struct xfs_dquot_res	2022-05-11 17:12:09 +10:00
xfs_dquot_item.c	xfs: remove support for disabling quota accounting on a mounted file system	2021-08-06 11:05:36 -07:00
xfs_dquot_item.h	xfs: remove support for disabling quota accounting on a mounted file system	2021-08-06 11:05:36 -07:00
xfs_dquot_item_recover.c	xfs: replace xfs_sb_version checks with feature flag checks	2021-08-19 10:07:12 -07:00
xfs_error.c	xfs: add leaf to node error tag	2022-05-11 17:01:23 +10:00
xfs_error.h	xfs: convert ptag flags to unsigned.	2022-04-21 10:47:25 +10:00
xfs_export.c	xfs: convert remaining mount flags to state flags	2021-08-19 10:07:13 -07:00
xfs_export.h	…
xfs_extent_busy.c	xfs: pass perags through to the busy extent code	2021-06-02 10:48:24 +10:00
xfs_extent_busy.h	xfs: pass perags through to the busy extent code	2021-06-02 10:48:24 +10:00
xfs_extfree_item.c	xfs: whiteouts release intents that are not in the AIL	2022-05-04 11:46:47 +10:00
xfs_extfree_item.h	xfs: rename _zone variables to _cache	2021-10-22 16:04:20 -07:00
xfs_file.c	xfs: Changes for 5.19-rc1 [2nd set]	2022-06-01 17:23:53 -07:00
xfs_filestream.c	xfs: fix soft lockup via spinning in filestream ag selection loop	2022-04-26 13:34:54 +10:00
xfs_filestream.h	xfs: convert mount flags to features	2021-08-19 10:07:12 -07:00
xfs_fsmap.c	xfs: pass explicit mount pointer to rtalloc query functions	2022-04-12 06:49:41 +10:00
xfs_fsmap.h	xfs: fix deadlock and streamline xfs_getfsmap performance	2020-10-07 08:40:29 -07:00
xfs_fsops.c	xfs: implement per-mount warnings for scrub and shrink usage	2022-05-27 10:31:34 +10:00
xfs_fsops.h	xfs: get rid of xfs_growfs_{data,log}_t	2021-02-03 09:18:50 -08:00
xfs_globals.c	xfs: Add larp debug option	2022-05-11 17:01:22 +10:00
xfs_health.c	xfs: replace XFS_FORCED_SHUTDOWN with xfs_is_shutdown	2021-08-19 10:07:13 -07:00
xfs_icache.c	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
xfs_icache.h	xfs: throttle inode inactivation queuing on memory reclaim	2021-08-09 11:13:17 -07:00
xfs_icreate_item.c	xfs: fix potential log item leak	2022-05-04 11:45:11 +10:00
xfs_icreate_item.h	xfs: rename _zone variables to _cache	2021-10-22 16:04:20 -07:00
xfs_inode.c	xfs: fix xfs_ifree() error handling to not leak perag ref	2022-05-30 10:56:33 +10:00
xfs_inode.h	Merge tag 'large-extent-counters-v9' of https://github.com/chandanr/linux into xfs-5.19-for-next	2022-04-21 16:46:17 +10:00
xfs_inode_item.c	xfs: hide log iovec alignment constraints	2022-05-04 11:45:50 +10:00
xfs_inode_item.h	xfs: aborting inodes on shutdown may need buffer lock	2022-03-29 18:21:59 -07:00
xfs_inode_item_recover.c	xfs: hide log iovec alignment constraints	2022-05-04 11:45:50 +10:00
xfs_ioctl.c	xfs: preserve DIFLAG2_NREXT64 when setting other inode attributes	2022-06-15 23:13:33 -07:00
xfs_ioctl.h	xfs: kill the XFS_IOC_{ALLOC,FREE}SP* ioctls	2022-01-17 09:16:41 -08:00
xfs_ioctl32.c	xfs: Set up infrastructure for log attribute replay	2022-05-04 12:41:02 +10:00
xfs_ioctl32.h	xfs: remove unused xfs_ioctl32.h declarations	2022-01-18 10:18:36 -08:00
xfs_iomap.c	xfs: Conditionally upgrade existing inodes to use large extent counters	2022-04-13 07:02:44 +00:00
xfs_iomap.h	iomap: add a IOMAP_DAX flag	2021-12-04 08:58:53 -08:00
xfs_iops.c	xfs: move xfs_attr_use_log_assist usage out of libxfs	2022-05-27 10:34:04 +10:00
xfs_iops.h	xfs: support idmapped mounts	2021-01-24 14:43:46 +01:00
xfs_itable.c	xfs: Enable bulkstat ioctl to support 64-bit per-inode extent counters	2022-04-13 07:02:45 +00:00
xfs_itable.h	xfs: Enable bulkstat ioctl to support 64-bit per-inode extent counters	2022-04-13 07:02:45 +00:00
xfs_iwalk.c	xfs: avoid buffer deadlocks when walking fs inodes	2021-08-09 11:13:16 -07:00
xfs_iwalk.h	xfs: Decouple XFS_IBULK flags from XFS_IWALK flags	2022-04-13 07:02:44 +00:00
xfs_linux.h	xfs: drop async cache flushes from CIL commits.	2022-03-29 18:22:02 -07:00
xfs_log.c	xfs: move xfs_attr_use_log_assist out of xfs_log.c	2022-05-27 10:33:29 +10:00
xfs_log.h	xfs: share xattr name and value buffers when logging xattr updates	2022-05-23 08:43:46 +10:00
xfs_log_cil.c	xfs: Changes for 5.19-rc1	2022-05-25 19:34:40 -07:00
xfs_log_priv.h	xfs: refactor buffer cancellation table allocation	2022-05-27 10:26:17 +10:00
xfs_log_recover.c	xfs: convert buf_cancel_table allocation to kmalloc_array	2022-05-27 10:27:19 +10:00
xfs_message.c	Merge branch 'guilt/xfs-unsigned-flags-5.18' into xfs-5.19-for-next	2022-04-21 16:45:03 +10:00
xfs_message.h	xfs: implement per-mount warnings for scrub and shrink usage	2022-05-27 10:31:34 +10:00
xfs_mount.c	xfs: don't log every time we clear the log incompat flags	2022-05-27 10:29:51 +10:00
xfs_mount.h	xfs: warn about LARP once per mount	2022-05-27 10:32:07 +10:00
xfs_mru_cache.c	xfs: rename _zone variables to _cache	2021-10-22 16:04:20 -07:00
xfs_mru_cache.h	…
xfs_ondisk.h	xfs: Set up infrastructure for log attribute replay	2022-05-04 12:41:02 +10:00
xfs_pnfs.c	xfs: use setattr_copy to set vfs inode attributes	2022-03-14 10:23:16 -07:00
xfs_pnfs.h	…
xfs_pwork.c	xfs: increase the default parallelism levels of pwork clients	2021-02-03 09:18:49 -08:00
xfs_pwork.h	xfs: increase the default parallelism levels of pwork clients	2021-02-03 09:18:49 -08:00
xfs_qm.c	mm: shrinkers: provide shrinkers with names	2022-07-03 18:08:40 -07:00
xfs_qm.h	xfs: remove quota warning limit from struct xfs_quota_limits	2022-05-11 17:12:09 +10:00
xfs_qm_bhv.c	xfs: replace xfs_sb_version checks with feature flag checks	2021-08-19 10:07:12 -07:00
xfs_qm_syscalls.c	xfs: don't set quota warning values	2022-05-11 17:12:09 +10:00
xfs_quota.h	xfs: queue inactivation immediately when quota is nearing enforcement	2021-08-09 10:52:18 -07:00
xfs_quotaops.c	xfs: don't set quota warning values	2022-05-11 17:12:09 +10:00
xfs_refcount_item.c	xfs: whiteouts release intents that are not in the AIL	2022-05-04 11:46:47 +10:00
xfs_refcount_item.h	xfs: rename _zone variables to _cache	2021-10-22 16:04:20 -07:00
xfs_reflink.c	xfs: rewrite xfs_reflink_end_cow to use intents	2022-04-28 10:25:50 -07:00
xfs_reflink.h	xfs: convert xfs_sb_version_has checks to use mount features	2021-08-19 10:07:14 -07:00
xfs_rmap_item.c	xfs: whiteouts release intents that are not in the AIL	2022-05-04 11:46:47 +10:00
xfs_rmap_item.h	xfs: rename _zone variables to _cache	2021-10-22 16:04:20 -07:00
xfs_rtalloc.c	Merge tag 'large-extent-counters-v9' of https://github.com/chandanr/linux into xfs-5.19-for-next	2022-04-21 16:46:17 +10:00
xfs_rtalloc.h	xfs: recalculate free rt extents after log recovery	2022-04-12 06:49:42 +10:00
xfs_stats.c	xfs: periodically relog deferred intent items	2020-10-07 08:40:28 -07:00
xfs_stats.h	xfs: periodically relog deferred intent items	2020-10-07 08:40:28 -07:00
xfs_super.c	xfs: Changes for 5.19-rc1 [2nd set]	2022-06-01 17:23:53 -07:00
xfs_super.h	xfs: move xfs_attr_use_log_assist out of xfs_log.c	2022-05-27 10:33:29 +10:00
xfs_symlink.c	xfs: Directory's data fork extent counter can never overflow	2022-04-13 07:02:07 +00:00
xfs_symlink.h	xfs: support idmapped mounts	2021-01-24 14:43:46 +01:00
xfs_sysctl.c	xfs: restore speculative_cow_prealloc_lifetime sysctl	2021-02-24 10:16:08 -08:00
xfs_sysctl.h	xfs: Add larp debug option	2022-05-11 17:01:22 +10:00
xfs_sysfs.c	xfs: Add larp debug option	2022-05-11 17:01:22 +10:00
xfs_sysfs.h	xfs: Fix UBSAN null-ptr-deref in xfs_sysfs_init	2020-08-07 11:50:17 -07:00
xfs_trace.c	xfs: add trace point for fs shutdown	2021-08-18 18:46:00 -07:00
xfs_trace.h	xfs: ATTR_REPLACE algorithm with LARP enabled needs rework	2022-05-12 15:12:56 +10:00
xfs_trans.c	xfs: report "max_resp" used for min log size computation	2022-04-28 10:25:23 -07:00
xfs_trans.h	xfs: intent item whiteouts	2022-05-04 11:50:29 +10:00
xfs_trans_ail.c	xfs: log shutdown triggers should only shut down the log	2022-03-29 18:22:01 -07:00
xfs_trans_buf.c	xfs: introduce xfs_buf_daddr()	2021-08-19 10:07:14 -07:00
xfs_trans_dquot.c	xfs: remove quota warning limit from struct xfs_quota_limits	2022-05-11 17:12:09 +10:00
xfs_trans_priv.h	xfs: AIL should be log centric	2022-03-20 08:59:49 -07:00
xfs_xattr.c	xfs: fix TOCTOU race involving the new logged xattrs control knob	2022-06-15 23:13:32 -07:00
xfs_xattr.h	xfs: move xfs_attr_use_log_assist usage out of libxfs	2022-05-27 10:34:04 +10:00