kernel/git/stable/linux.git/fs/f2fs/sysfs.c, branch linux-6.7.y

f2fs: fix to account cp stats correctly

2023-08-14T20:42:05+00:00

cp_foreground_calls sysfs entry shows total CP call count rather than foreground CP call count, fix it. Fixes: fc7100ea2a52 ("f2fs: Add f2fs stats to sysfs") Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: fix to account gc stats correctly

2023-08-14T20:41:57+00:00

As reported, status debugfs entry shows inconsistent GC stats as below: GC calls: 6008 (BG: 6161) - data segments : 3053 (BG: 3053) - node segments : 2955 (BG: 2955) Total GC calls is larger than BGGC calls, the reason is: - f2fs_stat_info.call_count accounts total migrated section count by f2fs_gc() - f2fs_stat_info.bg_gc accounts total call times of f2fs_gc() from background gc_thread Another issue is gc_foreground_calls sysfs entry shows total GC call count rather than FGGC call count. This patch changes as below for fix: - account GC calls and migrated segment count separately - support to account migrated section count if it enables large section mode - fix to show correct value in gc_foreground_calls sysfs entry Fixes: fc7100ea2a52 ("f2fs: Add f2fs stats to sysfs") Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: refactor struct f2fs_attr macro

2023-06-26T13:21:41+00:00

This patch provides a large number of variants of F2FS_RW_ATTR and F2FS_RO_ATTR macros, reducing the number of parameters required to initialize the f2fs_attr structure. Reported-by: kernel test robot Link: https://lore.kernel.org/oe-kbuild-all/202304152234.wjaY3IYm-lkp@intel.com/ Signed-off-by: Yangtao Li Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: add sanity check for proc_mkdir

2023-05-08T18:18:04+00:00

Return -ENOMEM when proc_mkdir failed. Signed-off-by: Yangtao Li Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: remove bulk remove_proc_entry() and unnecessary kobject_del()

2023-04-17T21:49:30+00:00

Convert to use remove_proc_subtree() and kill kobject_del() directly. kobject_put() actually covers kobject removal automatically, which is single stage removal. Signed-off-by: Yangtao Li Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: convert to use sysfs_emit

2023-04-10T17:58:45+00:00

Let's use sysfs_emit. Signed-off-by: Yangtao Li Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: fix iostat lock protection

2023-04-04T20:57:30+00:00

Made iostat lock irq safe to avoid potentinal deadlock. Deadlock scenario: f2fs_attr_store -> f2fs_sbi_store -> _sbi_store -> spin_lock(sbi->iostat_lock) -> scsi_end_request -> bio_endio -> f2fs_dio_read_end_io -> f2fs_update_iostat -> spin_lock_irqsave(sbi->iostat_lock) ===> Dead lock here Fixes: 61803e984307 ("f2fs: fix iostat related lock protection") Fixes: a1e09b03e6f5 ("f2fs: use iomap for direct I/O") Signed-off-by: Qilin Tan Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: convert to use bitmap API

2023-03-29T22:17:37+00:00

Let's use BIT() and GENMASK() instead of open it. Signed-off-by: Yangtao Li Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: export compress_percent and compress_watermark entries

2023-03-29T22:17:37+00:00

This patch export below sysfs entries for better control cached compress page count. /sys/fs/f2fs//compress_watermark /sys/fs/f2fs//compress_percent Signed-off-by: Yangtao Li Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: make kobj_type structures constant

2023-02-13T17:52:47+00:00

Since commit ee6d3dd4ed48 ("driver core: make kobj_type constant.") the driver core allows the usage of const struct kobj_type. Take advantage of this to constify the structure definitions to prevent modification at runtime. Signed-off-by: Thomas Weißschuh Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim