5.15-stable review patch. If anyone has any objections, please let me know.
------------------
From: Christoph Hellwig <hch@xxxxxx>
[ Upstream commit 8442d94b8ac8d5d8300725a9ffa9def526b71170 ]
allocate_segment_by_default has just two callers, which use very
different code pathes inside it based on the force paramter. Just
open code the logic in the two callers using a new helper to decided
if a new segment should be allocated.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Chao Yu <chao@xxxxxxxxxx>
Signed-off-by: Jaegeuk Kim <jaegeuk@xxxxxxxxxx>
Stable-dep-of: 43563069e1c1 ("f2fs: check curseg->inited before write_sum_page in change_curseg")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
fs/f2fs/segment.c | 50 +++++++++++++++++++++++------------------------
1 file changed, 24 insertions(+), 26 deletions(-)
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index 91c7593965c47..cb37c711b1f61 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2922,31 +2922,20 @@ static int get_ssr_segment(struct f2fs_sb_info *sbi, int type,
return 0;
}
-/*
- * flush out current segment and replace it with new segment
- * This function should be returned with success, otherwise BUG
- */
-static void allocate_segment_by_default(struct f2fs_sb_info *sbi,
- int type, bool force)
+static bool need_new_seg(struct f2fs_sb_info *sbi, int type)
{
struct curseg_info *curseg = CURSEG_I(sbi, type);
- if (force)
- new_curseg(sbi, type, true);
- else if (!is_set_ckpt_flags(sbi, CP_CRC_RECOVERY_FLAG) &&
- curseg->seg_type == CURSEG_WARM_NODE)
- new_curseg(sbi, type, false);
- else if (curseg->alloc_type == LFS &&
- is_next_segment_free(sbi, curseg, type) &&
- likely(!is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
- new_curseg(sbi, type, false);
- else if (f2fs_need_SSR(sbi) &&
- get_ssr_segment(sbi, type, SSR, 0))
- change_curseg(sbi, type, true);
- else
- new_curseg(sbi, type, false);
-
- stat_inc_seg_type(sbi, curseg);
+ if (!is_set_ckpt_flags(sbi, CP_CRC_RECOVERY_FLAG) &&
+ curseg->seg_type == CURSEG_WARM_NODE)
+ return true;
+ if (curseg->alloc_type == LFS &&
+ is_next_segment_free(sbi, curseg, type) &&
+ likely(!is_sbi_flag_set(sbi, SBI_CP_DISABLED)))
+ return true;
+ if (!f2fs_need_SSR(sbi) || !get_ssr_segment(sbi, type, SSR, 0))
+ return true;
+ return false;
}
void f2fs_allocate_segment_for_resize(struct f2fs_sb_info *sbi, int type,
@@ -2999,7 +2988,8 @@ static void __allocate_new_segment(struct f2fs_sb_info *sbi, int type,
return;
alloc:
old_segno = curseg->segno;
- allocate_segment_by_default(sbi, type, true);
+ new_curseg(sbi, type, true);
+ stat_inc_seg_type(sbi, curseg);
locate_dirty_segment(sbi, old_segno);
}
@@ -3444,11 +3434,19 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
update_sit_entry(sbi, old_blkaddr, -1);
if (!__has_curseg_space(sbi, curseg)) {
- if (from_gc)
+ /*
+ * Flush out current segment and replace it with new segment.
+ */
+ if (from_gc) {
get_atssr_segment(sbi, type, se->type,
AT_SSR, se->mtime);
- else
- allocate_segment_by_default(sbi, type, false);
+ } else {
+ if (need_new_seg(sbi, type))
+ new_curseg(sbi, type, false);
+ else
+ change_curseg(sbi, type, true);
+ stat_inc_seg_type(sbi, curseg);
+ }
}
/*
* segment dirty status should be updated after segment allocation,
--
2.43.0
