kernel.git/fs/f2fs/sysfs.c, branch linux-6.10.y

f2fs: introduce migration_window_granularity

2024-10-10T10:00:45Z

[ Upstream commit 8c890c4c60342719526520133fb1b6f69f196ab8 ] We can control the scanning window granularity for GC migration. For more frequent scanning and GC on zoned devices, we need a fine grained control knob for it. Signed-off-by: Daeho Jeong Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim Stable-dep-of: 5cc69a27abfa ("f2fs: forcibly migrate to secure space for zoned device file pinning") Signed-off-by: Sasha Levin

f2fs: add write priority option based on zone UFS

2024-10-10T10:00:44Z

[ Upstream commit 8444ce524947daf441546b5b3a0c418706dade35 ] Currently, we are using a mix of traditional UFS and zone UFS to support some functionalities that cannot be achieved on zone UFS alone. However, there are some issues with this approach. There exists a significant performance difference between traditional UFS and zone UFS. Under normal usage, we prioritize writes to zone UFS. However, in critical conditions (such as when the entire UFS is almost full), we cannot determine whether data will be written to traditional UFS or zone UFS. This can lead to significant performance fluctuations, which is not conducive to development and testing. To address this, we have added an option zlu_io_enable under sys with the following three modes: 1) zlu_io_enable == 0:Normal mode, prioritize writing to zone UFS; 2) zlu_io_enable == 1:Zone UFS only mode, only allow writing to zone UFS; 3) zlu_io_enable == 2:Traditional UFS priority mode, prioritize writing to traditional UFS. Signed-off-by: Liao Yuanhong Signed-off-by: Wu Bo Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim Stable-dep-of: 65a6ce4726c2 ("f2fs: fix to don't panic system for no free segment fault injection") Signed-off-by: Sasha Levin

f2fs: check validation of fault attrs in f2fs_build_fault_attr()

2024-05-09T01:04:46Z

- It missed to check validation of fault attrs in parse_options(), let's fix to add check condition in f2fs_build_fault_attr(). - Use f2fs_build_fault_attr() in __sbi_store() to clean up code. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: fix to limit gc_pin_file_threshold

2024-05-09T01:03:44Z

type of f2fs_inode.i_gc_failures, f2fs_inode_info.i_gc_failures, and f2fs_sb_info.gc_pin_file_threshold is __le16, unsigned int, and u64, so it will cause truncation during comparison and persistence. Unifying variable of these three variables to unsigned short, and add an upper boundary limitation for gc_pin_file_threshold. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: add a proc entry show disk layout

2024-03-06T17:43:26Z

This patch adds the disk map of block address ranges configured by multiple partitions. Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: introduce SEGS_TO_BLKS/BLKS_TO_SEGS for cleanup

2024-03-04T18:18:26Z

Just cleanup, no functional change. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: use BLKS_PER_SEG, BLKS_PER_SEC, and SEGS_PER_SEC

2024-02-27T17:41:12Z

No functional change. Reviewed-by: Daeho Jeong Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: show more discard status by sysfs

2023-12-26T21:07:26Z

The current pending_discard attr just only shows the discard_cmd_cnt information. More discard status can be shown so that we can check them through sysfs when needed. Signed-off-by: Zhiguo Niu Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: Constrain the modification range of dir_level in the sysfs

2023-12-26T21:06:32Z

The {struct f2fs_sb_info}->dir_level can be modified through the sysfs interface, but its value range is not limited. If the value exceeds MAX_DIR_HASH_DEPTH and the mount options include "noinline_dentry", the following error will occur: [root@fedora ~]# mount -o noinline_dentry /dev/sdb /mnt/sdb/ [root@fedora ~]# echo 128 > /sys/fs/f2fs/sdb/dir_level [root@fedora ~]# cd /mnt/sdb/ [root@fedora sdb]# mkdir test [root@fedora sdb]# cd test/ [root@fedora test]# mkdir test mkdir: cannot create directory 'test': Argument list too long Signed-off-by: Yongpeng Yang Reviewed-by: Chao Yu Signed-off-by: Jaegeuk Kim

f2fs: sysfs: support discard_io_aware

2023-11-28T18:59:51Z

It gives a way to enable/disable IO aware feature for background discard, so that we can tune background discard more precisely based on undiscard condition. e.g. force to disable IO aware if there are large number of discard extents, and discard IO may always be interrupted by frequent common IO. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim