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authorDaeho Jeong <daehojeong@google.com>2021-12-09 03:41:51 +0300
committerJaegeuk Kim <jaegeuk@kernel.org>2021-12-11 02:48:33 +0300
commit325163e9892b627fc9fb1af51e51f0f95dded517 (patch)
treed2a60da55a411960f13c7a0aed39e4b87a05fb52 /fs/f2fs/sysfs.c
parent77900c45ee5cd5da63bd4d818a41dbdf367e81cd (diff)
downloadlinux-325163e9892b627fc9fb1af51e51f0f95dded517.tar.xz
f2fs: add gc_urgent_high_remaining sysfs node
Added a new sysfs node called gc_urgent_high_remaining. The user can set the trial count limit for GC urgent high mode with this value. If GC thread gets to the limit, the mode will turn back to GC normal mode. By default, the value is zero, which means there is no limit like before. Signed-off-by: Daeho Jeong <daehojeong@google.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/sysfs.c')
-rw-r--r--fs/f2fs/sysfs.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c
index 47c950f65b6f..55a7df17d5f3 100644
--- a/fs/f2fs/sysfs.c
+++ b/fs/f2fs/sysfs.c
@@ -487,6 +487,15 @@ out:
return count;
}
+ if (!strcmp(a->attr.name, "gc_urgent_high_remaining")) {
+ spin_lock(&sbi->gc_urgent_high_lock);
+ sbi->gc_urgent_high_limited = t == 0 ? false : true;
+ sbi->gc_urgent_high_remaining = t;
+ spin_unlock(&sbi->gc_urgent_high_lock);
+
+ return count;
+ }
+
#ifdef CONFIG_F2FS_IOSTAT
if (!strcmp(a->attr.name, "iostat_enable")) {
sbi->iostat_enable = !!t;
@@ -742,6 +751,7 @@ F2FS_RW_ATTR(FAULT_INFO_TYPE, f2fs_fault_info, inject_type, inject_type);
#endif
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, data_io_flag, data_io_flag);
F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, node_io_flag, node_io_flag);
+F2FS_RW_ATTR(F2FS_SBI, f2fs_sb_info, gc_urgent_high_remaining, gc_urgent_high_remaining);
F2FS_RW_ATTR(CPRC_INFO, ckpt_req_control, ckpt_thread_ioprio, ckpt_thread_ioprio);
F2FS_GENERAL_RO_ATTR(dirty_segments);
F2FS_GENERAL_RO_ATTR(free_segments);
@@ -855,6 +865,7 @@ static struct attribute *f2fs_attrs[] = {
#endif
ATTR_LIST(data_io_flag),
ATTR_LIST(node_io_flag),
+ ATTR_LIST(gc_urgent_high_remaining),
ATTR_LIST(ckpt_thread_ioprio),
ATTR_LIST(dirty_segments),
ATTR_LIST(free_segments),