On 2021/4/13 10:59, Jaegeuk Kim wrote:
On 04/11, Chao Yu wrote:
Hi Jaegeuk,
Could you please help to merge below cleanup diff into original patch?
or merge this separately if it is too late since it is near rc7.
I didn't review this tho, this gives an error in xfstests/083.
From 59c2bd34fb0c77bcede2af7e5d308c014c544a1e Mon Sep 17 00:00:00 2001
From: Chao Yu <yuch...@huawei.com>
Date: Sun, 11 Apr 2021 14:29:34 +0800
Subject: [PATCH] f2fs: avoid duplicated codes for cleanup
f2fs_segment_has_free_slot() was copied and modified from
__next_free_blkoff(), they are almost the same, clean up to
reuse common code as much as possible.
Signed-off-by: Chao Yu <yuch...@huawei.com>
---
- fix to assign .next_blkoff in change_curseg()
fs/f2fs/segment.c | 32 ++++++++++----------------------
1 file changed, 10 insertions(+), 22 deletions(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index d6c6c13feb43..6e740ecf0814 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2638,22 +2638,20 @@ static void new_curseg(struct f2fs_sb_info *sbi, int
type, bool new_sec)
curseg->alloc_type = LFS;
}
-static void __next_free_blkoff(struct f2fs_sb_info *sbi,
- struct curseg_info *seg, block_t start)
+static int __next_free_blkoff(struct f2fs_sb_info *sbi,
+ int segno, block_t start)
{
- struct seg_entry *se = get_seg_entry(sbi, seg->segno);
+ struct seg_entry *se = get_seg_entry(sbi, segno);
int entries = SIT_VBLOCK_MAP_SIZE / sizeof(unsigned long);
unsigned long *target_map = SIT_I(sbi)->tmp_map;
unsigned long *ckpt_map = (unsigned long *)se->ckpt_valid_map;
unsigned long *cur_map = (unsigned long *)se->cur_valid_map;
- int i, pos;
+ int i;
for (i = 0; i < entries; i++)
target_map[i] = ckpt_map[i] | cur_map[i];
- pos = __find_rev_next_zero_bit(target_map, sbi->blocks_per_seg, start);
-
- seg->next_blkoff = pos;
+ return __find_rev_next_zero_bit(target_map, sbi->blocks_per_seg, start);
}
/*
@@ -2665,26 +2663,16 @@ static void __refresh_next_blkoff(struct f2fs_sb_info
*sbi,
struct curseg_info *seg)
{
if (seg->alloc_type == SSR)
- __next_free_blkoff(sbi, seg, seg->next_blkoff + 1);
+ seg->next_blkoff =
+ __next_free_blkoff(sbi, seg->segno,
+ seg->next_blkoff + 1);
else
seg->next_blkoff++;
}
bool f2fs_segment_has_free_slot(struct f2fs_sb_info *sbi, int segno)
{
- struct seg_entry *se = get_seg_entry(sbi, segno);
- int entries = SIT_VBLOCK_MAP_SIZE / sizeof(unsigned long);
- unsigned long *target_map = SIT_I(sbi)->tmp_map;
- unsigned long *ckpt_map = (unsigned long *)se->ckpt_valid_map;
- unsigned long *cur_map = (unsigned long *)se->cur_valid_map;
- int i, pos;
-
- for (i = 0; i < entries; i++)
- target_map[i] = ckpt_map[i] | cur_map[i];
-
- pos = __find_rev_next_zero_bit(target_map, sbi->blocks_per_seg, 0);
-
- return pos < sbi->blocks_per_seg;
+ return __next_free_blkoff(sbi, segno, 0) < sbi->blocks_per_seg;
}
/*
@@ -2712,7 +2700,7 @@ static void change_curseg(struct f2fs_sb_info *sbi, int
type, bool flush)
reset_curseg(sbi, type, 1);
curseg->alloc_type = SSR;
- __next_free_blkoff(sbi, curseg, 0);
+ curseg->next_blkoff = __next_free_blkoff(sbi, curseg->segno, 0);
sum_page = f2fs_get_sum_page(sbi, new_segno);
if (IS_ERR(sum_page)) {
--
2.29.2
