[PATCH v2 1/2] f2fs: separate f2fs_gc_range() to use GC for a range

From: Daeho Jeong
Date: Thu Feb 08 2024 - 21:43:05 EST


From: Daeho Jeong <daehojeong@xxxxxxxxxx>

Make f2fs_gc_range() an extenal function to use it for GC for a range.

Signed-off-by: Daeho Jeong <daehojeong@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
---
fs/f2fs/gc.c | 49 ++++++++++++++++++++++++++++---------------------
1 file changed, 28 insertions(+), 21 deletions(-)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 8a9cdc5a72c5..a089a938355b 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1961,10 +1961,34 @@ void f2fs_build_gc_manager(struct f2fs_sb_info *sbi)
init_atgc_management(sbi);
}

+static int f2fs_gc_range(struct f2fs_sb_info *sbi,
+ unsigned int start_seg, unsigned int end_seg, bool dry_run)
+{
+ unsigned int segno;
+
+ for (segno = start_seg; segno <= end_seg; segno += SEGS_PER_SEC(sbi)) {
+ struct gc_inode_list gc_list = {
+ .ilist = LIST_HEAD_INIT(gc_list.ilist),
+ .iroot = RADIX_TREE_INIT(gc_list.iroot, GFP_NOFS),
+ };
+
+ do_garbage_collect(sbi, segno, &gc_list, FG_GC, true);
+ put_gc_inode(&gc_list);
+
+ if (!dry_run && get_valid_blocks(sbi, segno, true))
+ return -EAGAIN;
+
+ if (fatal_signal_pending(current))
+ return -ERESTARTSYS;
+ }
+
+ return 0;
+}
+
static int free_segment_range(struct f2fs_sb_info *sbi,
- unsigned int secs, bool gc_only)
+ unsigned int secs, bool dry_run)
{
- unsigned int segno, next_inuse, start, end;
+ unsigned int next_inuse, start, end;
struct cp_control cpc = { CP_RESIZE, 0, 0, 0 };
int gc_mode, gc_type;
int err = 0;
@@ -1990,25 +2014,8 @@ static int free_segment_range(struct f2fs_sb_info *sbi,
f2fs_allocate_segment_for_resize(sbi, type, start, end);

/* do GC to move out valid blocks in the range */
- for (segno = start; segno <= end; segno += SEGS_PER_SEC(sbi)) {
- struct gc_inode_list gc_list = {
- .ilist = LIST_HEAD_INIT(gc_list.ilist),
- .iroot = RADIX_TREE_INIT(gc_list.iroot, GFP_NOFS),
- };
-
- do_garbage_collect(sbi, segno, &gc_list, FG_GC, true);
- put_gc_inode(&gc_list);
-
- if (!gc_only && get_valid_blocks(sbi, segno, true)) {
- err = -EAGAIN;
- goto out;
- }
- if (fatal_signal_pending(current)) {
- err = -ERESTARTSYS;
- goto out;
- }
- }
- if (gc_only)
+ err = f2fs_gc_range(sbi, start, end, dry_run);
+ if (err || dry_run)
goto out;

stat_inc_cp_call_count(sbi, TOTAL_CALL);
--
2.43.0.687.g38aa6559b0-goog