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f2fs: enable atgc dynamically if conditions are met

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Now atgc can only be enabled when umounted->mounted device
even related conditions have reached. If the device has not
be umounted->mounted for a long time, atgc can not work.

So enable atgc dynamically when atgc_age_threshold is less than
elapsed_time and ATGC mount option is on.

Signed-off-by: Chao Yu <chao@kernel.org>
Signed-off-by: Zhiguo Niu <zhiguo.niu@unisoc.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Zhiguo Niu 2024-06-07 17:00:30 +08:00 committed by Jaegeuk Kim
parent 298b1e4182
commit 6efc3a05e6
3 changed files with 26 additions and 3 deletions
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1
fs/f2fs/checkpoint.c
View File

@ -1718,6 +1718,7 @@ int f2fs_write_checkpoint(struct f2fs_sb_info *sbi, struct cp_control *cpc)
}
f2fs_restore_inmem_curseg(sbi);
f2fs_reinit_atgc_curseg(sbi);
stat_inc_cp_count(sbi);
stop:
unblock_operations(sbi);

1
fs/f2fs/f2fs.h
View File

@ -3693,6 +3693,7 @@ void f2fs_release_discard_addrs(struct f2fs_sb_info *sbi);
int f2fs_npages_for_summary_flush(struct f2fs_sb_info *sbi, bool for_ra);
bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno);
int f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi);
int f2fs_reinit_atgc_curseg(struct f2fs_sb_info *sbi);
void f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi);
void f2fs_restore_inmem_curseg(struct f2fs_sb_info *sbi);
int f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,

27
fs/f2fs/segment.c
View File

@ -2931,12 +2931,12 @@ static int get_atssr_segment(struct f2fs_sb_info *sbi, int type,
return ret;
}
static int __f2fs_init_atgc_curseg(struct f2fs_sb_info *sbi)
static int __f2fs_init_atgc_curseg(struct f2fs_sb_info *sbi, bool force)
{
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_ALL_DATA_ATGC);
int ret = 0;
if (!sbi->am.atgc_enabled)
if (!sbi->am.atgc_enabled && !force)
return 0;
f2fs_down_read(&SM_I(sbi)->curseg_lock);
@ -2953,9 +2953,30 @@ static int __f2fs_init_atgc_curseg(struct f2fs_sb_info *sbi)
f2fs_up_read(&SM_I(sbi)->curseg_lock);
return ret;
}
int f2fs_init_inmem_curseg(struct f2fs_sb_info *sbi)
{
return __f2fs_init_atgc_curseg(sbi);
return __f2fs_init_atgc_curseg(sbi, false);
}
int f2fs_reinit_atgc_curseg(struct f2fs_sb_info *sbi)
{
int ret;
if (!test_opt(sbi, ATGC))
return 0;
if (sbi->am.atgc_enabled)
return 0;
if (le64_to_cpu(F2FS_CKPT(sbi)->elapsed_time) <
sbi->am.age_threshold)
return 0;
ret = __f2fs_init_atgc_curseg(sbi, true);
if (!ret) {
sbi->am.atgc_enabled = true;
f2fs_info(sbi, "reenabled age threshold GC");
}
return ret;
}
static void __f2fs_save_inmem_curseg(struct f2fs_sb_info *sbi, int type)