kernel/linux.git/fs/f2fs/sysfs.c, branch linux-6.0.y

f2fs: introduce sysfs atomic write statistics

2022-07-31T03:17:07+00:00

introduce the below 4 new sysfs node for atomic write statistics. - current_atomic_write: the total current atomic write block count, which is not committed yet. - peak_atomic_write: the peak value of total current atomic write block count after boot. - committed_atomic_block: the accumulated total committed atomic write block count after boot. - revoked_atomic_block: the accumulated total revoked atomic write block count after boot. Signed-off-by: Daeho Jeong Signed-off-by: Jaegeuk Kim

f2fs: add a sysfs entry to show zone capacity

2022-07-31T03:16:20+00:00

This patch adds a sysfs entry showing the unusable space in a section made by zone capacity. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

Merge tag 'f2fs-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs

2022-03-22T17:00:31+00:00

Pull f2fs updates from Jaegeuk Kim: "In this cycle, f2fs has some performance improvements for Android workloads such as using read-unfair rwsems and adding some sysfs entries to control GCs and discard commands in more details. In addtiion, it has some tunings to improve the recovery speed after sudden power-cut. Enhancement: - add reader-unfair rwsems with F2FS_UNFAIR_RWSEM: will replace with generic API support - adjust to make the readahead/recovery flow more efficiently - sysfs entries to control issue speeds of GCs and Discard commands - enable idmapped mounts Bug fix: - correct wrong error handling routines - fix missing conditions in quota - fix a potential deadlock between writeback and block plug routines - fix a deadlock btween freezefs and evict_inode We've added some boundary checks to avoid kernel panics on corrupted images, and several minor code clean-ups" * tag 'f2fs-for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (27 commits) f2fs: fix to do sanity check on .cp_pack_total_block_count f2fs: make gc_urgent and gc_segment_mode sysfs node readable f2fs: use aggressive GC policy during f2fs_disable_checkpoint() f2fs: fix compressed file start atomic write may cause data corruption f2fs: initialize sbi->gc_mode explicitly f2fs: introduce gc_urgent_mid mode f2fs: compress: fix to print raw data size in error path of lz4 decompression f2fs: remove redundant parameter judgment f2fs: use spin_lock to avoid hang f2fs: don't get FREEZE lock in f2fs_evict_inode in frozen fs f2fs: remove unnecessary read for F2FS_FITS_IN_INODE f2fs: introduce F2FS_UNFAIR_RWSEM to support unfair rwsem f2fs: avoid an infinite loop in f2fs_sync_dirty_inodes f2fs: fix to do sanity check on curseg->alloc_type f2fs: fix to avoid potential deadlock f2fs: quota: fix loop condition at f2fs_quota_sync() f2fs: Restore rwsem lockdep support f2fs: fix missing free nid in f2fs_handle_failed_inode f2fs: support idmapped mounts f2fs: add a way to limit roll forward recovery time ...

f2fs: make gc_urgent and gc_segment_mode sysfs node readable

2022-03-21T16:09:54+00:00

Changed a way of showing values of them to use strings. Signed-off-by: Daeho Jeong Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: introduce gc_urgent_mid mode

2022-03-17T16:16:22+00:00

We need a mid level of gc urgent mode to do GC forcibly in a period of given gc_urgent_sleep_time, but not like using greedy GC approach and switching to SSR mode such as gc urgent high mode. This can be used for more aggressive periodic storage clean up. Signed-off-by: Daeho Jeong Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: add a way to limit roll forward recovery time

2022-02-12T13:58:18+00:00

This adds a sysfs entry to call checkpoint during fsync() in order to avoid long elapsed time to run roll-forward recovery when booting the device. Default value doesn't enforce the limitation which is same as before. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: expose discard related parameters in sysfs

2022-02-03T00:34:55+00:00

This patch exposes max_discard_request, min_discard_issue_time, mid_discard_issue_time, and max_discard_issue_time in sysfs. This will allow the user to fine tune discard operations. Signed-off-by: Konstantin Vyshetsky Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

Merge tag 'unicode-for-next-5.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode

2022-02-01T19:13:24+00:00

Pull unicode cleanup from Gabriel Krisman Bertazi: "A fix from Christoph Hellwig merging the CONFIG_UNICODE_UTF8_DATA into the previous CONFIG_UNICODE. It is -rc material since we don't want to expose the former symbol on 5.17. This has been living on linux-next for the past week" * tag 'unicode-for-next-5.17-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/krisman/unicode: unicode: clean up the Kconfig symbol confusion

f2fs: fix to enable ATGC correctly via gc_idle sysfs interface

2022-01-25T01:40:04+00:00

It needs to assign sbi->gc_mode with GC_IDLE_AT rather than GC_AT when user tries to enable ATGC via gc_idle sysfs interface, fix it. Fixes: 093749e296e2 ("f2fs: support age threshold based garbage collection") Cc: Zhipeng Tan Signed-off-by: Jicheng Shao Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: move f2fs to use reader-unfair rwsems

2022-01-25T01:40:04+00:00

f2fs rw_semaphores work better if writers can starve readers, especially for the checkpoint thread, because writers are strictly more important than reader threads. This prevents significant priority inversion between low-priority readers that blocked while trying to acquire the read lock and a second acquisition of the write lock that might be blocking high priority work. Signed-off-by: Tim Murray Signed-off-by: Jaegeuk Kim