linux.git/fs/f2fs/sysfs.c, branch v6.12

f2fs: allow F2FS_IPU_NOCACHE for pinned file

2024-09-23T15:42:13+00:00

This patch allows f2fs to submit bios of in-place writes on pinned file.

Reviewed-by: Daeho Jeong 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: add valid block ratio not to do excessive GC for one time GC

2024-09-11T03:33:08+00:00

We need to introduce a valid block ratio threshold not to trigger
excessive GC for zoned deivces. The initial value of it is 95%. So, F2FS
will stop the thread from intiating GC for sections having valid blocks
exceeding the ratio.

Signed-off-by: Daeho Jeong 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: create gc_no_zoned_gc_percent and gc_boost_zoned_gc_percent

2024-09-11T03:33:05+00:00

Added control knobs for gc_no_zoned_gc_percent and
gc_boost_zoned_gc_percent.

Signed-off-by: Daeho Jeong 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: add reserved_segments sysfs node

2024-09-11T03:32:57+00:00

For the fine tuning of GC behavior, add reserved_segments sysfs node.

Signed-off-by: Daeho Jeong 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: introduce migration_window_granularity

2024-09-11T03:32:54+00:00

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

f2fs: Use sysfs_emit_at() to simplify code

2024-08-21T01:02:05+00:00

This file already uses sysfs_emit(). So be consistent and also use
sysfs_emit_at().

This slightly simplifies the code and makes it more readable.

Reviewed-by: Chao Yu 
Signed-off-by: Christophe JAILLET 
Signed-off-by: Jaegeuk Kim

f2fs: sysfs: support atgc_enabled

2024-08-15T15:26:40+00:00

When we add "atgc" to the fstab table, ATGC is not immediately enabled.
There is a 7-day time threshold, and we can use "atgc_enabled" to
show whether ATGC is enabled.

Signed-off-by: liujinbao1 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: add write priority option based on zone UFS

2024-08-05T20:18:35+00:00

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

f2fs: use new ioprio Macro to get ckpt thread ioprio level

2024-06-12T15:46:03+00:00

IOPRIO_PRIO_DATA in the new kernel version includes level and hint,
So Macro IOPRIO_PRIO_LEVEL is more accurate to get ckpt thread
ioprio data/level, and it is also consisten with the way setting
ckpt thread ioprio by IOPRIO_PRIO_VALUE(class, data/level).

Besides, change variable name from "data" to "level" for more readable.

Signed-off-by: Zhiguo Niu 
Reviewed-by: Chao Yu 
Signed-off-by: Jaegeuk Kim

f2fs: check validation of fault attrs in f2fs_build_fault_attr()

2024-05-09T01:04:46+00:00

- 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