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f2fs: increase BG GC migration window granularity when boosted for zoned devices

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Need bigger BG GC migration window granularity when free section is
running low.

Signed-off-by: Daeho Jeong <daehojeong@google.com>
Reviewed-by: Chao Yu <chao@kernel.org>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
This commit is contained in:
Daeho Jeong 2024-09-09 15:19:43 -07:00 committed by Jaegeuk Kim
parent 4cdca5a904
commit 2223fe652f
2 changed files with 11 additions and 2 deletions
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12
fs/f2fs/gc.c
View File

@ -1728,10 +1728,18 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
sec_end_segno -= SEGS_PER_SEC(sbi) -
f2fs_usable_segs_in_sec(sbi, segno);
if (gc_type == BG_GC)
end_segno = start_segno +
if (gc_type == BG_GC) {
unsigned int window_granularity =
sbi->migration_window_granularity;
if (f2fs_sb_has_blkzoned(sbi) &&
!has_enough_free_blocks(sbi,
LIMIT_BOOST_ZONED_GC))
window_granularity *= BOOST_GC_MULTIPLE;
end_segno = start_segno + window_granularity;
}
if (end_segno > sec_end_segno)
end_segno = sec_end_segno;
}

1
fs/f2fs/gc.h
View File

@ -33,6 +33,7 @@
#define LIMIT_NO_ZONED_GC 60 /* percentage over total user space of no gc for zoned devices */
#define LIMIT_BOOST_ZONED_GC 25 /* percentage over total user space of boosted gc for zoned devices */
#define DEF_MIGRATION_WINDOW_GRANULARITY_ZONED 3
#define BOOST_GC_MULTIPLE 5
#define DEF_GC_FAILED_PINNED_FILES 2048
#define MAX_GC_FAILED_PINNED_FILES USHRT_MAX