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Diffstat (limited to 'fs/f2fs/segment.h')
-rw-r--r--fs/f2fs/segment.h132
1 files changed, 98 insertions, 34 deletions
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 0465dc00b349..db619fd2f51a 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -102,6 +102,8 @@ static inline void sanity_check_seg_type(struct f2fs_sb_info *sbi,
#define CAP_SEGS_PER_SEC(sbi) \
(SEGS_PER_SEC(sbi) - \
BLKS_TO_SEGS(sbi, (sbi)->unusable_blocks_per_sec))
+#define GET_START_SEG_FROM_SEC(sbi, segno) \
+ (rounddown(segno, SEGS_PER_SEC(sbi)))
#define GET_SEC_FROM_SEG(sbi, segno) \
(((segno) == -1) ? -1 : (segno) / SEGS_PER_SEC(sbi))
#define GET_SEG_FROM_SEC(sbi, secno) \
@@ -209,6 +211,7 @@ struct seg_entry {
struct sec_entry {
unsigned int valid_blocks; /* # of valid blocks in a section */
+ unsigned int ckpt_valid_blocks; /* # of valid blocks last cp in a section */
};
#define MAX_SKIP_GC_COUNT 16
@@ -345,22 +348,57 @@ static inline unsigned int get_valid_blocks(struct f2fs_sb_info *sbi,
static inline unsigned int get_ckpt_valid_blocks(struct f2fs_sb_info *sbi,
unsigned int segno, bool use_section)
{
- if (use_section && __is_large_section(sbi)) {
- unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
- unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno);
- unsigned int blocks = 0;
- int i;
+ if (use_section && __is_large_section(sbi))
+ return get_sec_entry(sbi, segno)->ckpt_valid_blocks;
+ else
+ return get_seg_entry(sbi, segno)->ckpt_valid_blocks;
+}
+
+static inline void set_ckpt_valid_blocks(struct f2fs_sb_info *sbi,
+ unsigned int segno)
+{
+ unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
+ unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno);
+ unsigned int blocks = 0;
+ int i;
- for (i = 0; i < SEGS_PER_SEC(sbi); i++, start_segno++) {
- struct seg_entry *se = get_seg_entry(sbi, start_segno);
+ for (i = 0; i < SEGS_PER_SEC(sbi); i++, start_segno++) {
+ struct seg_entry *se = get_seg_entry(sbi, start_segno);
- blocks += se->ckpt_valid_blocks;
- }
- return blocks;
+ blocks += se->ckpt_valid_blocks;
}
- return get_seg_entry(sbi, segno)->ckpt_valid_blocks;
+ get_sec_entry(sbi, segno)->ckpt_valid_blocks = blocks;
}
+#ifdef CONFIG_F2FS_CHECK_FS
+static inline void sanity_check_valid_blocks(struct f2fs_sb_info *sbi,
+ unsigned int segno)
+{
+ unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
+ unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno);
+ unsigned int blocks = 0;
+ int i;
+
+ for (i = 0; i < SEGS_PER_SEC(sbi); i++, start_segno++) {
+ struct seg_entry *se = get_seg_entry(sbi, start_segno);
+
+ blocks += se->ckpt_valid_blocks;
+ }
+
+ if (blocks != get_sec_entry(sbi, segno)->ckpt_valid_blocks) {
+ f2fs_err(sbi,
+ "Inconsistent ckpt valid blocks: "
+ "seg entry(%d) vs sec entry(%d) at secno %d",
+ blocks, get_sec_entry(sbi, segno)->ckpt_valid_blocks, secno);
+ f2fs_bug_on(sbi, 1);
+ }
+}
+#else
+static inline void sanity_check_valid_blocks(struct f2fs_sb_info *sbi,
+ unsigned int segno)
+{
+}
+#endif
static inline void seg_info_from_raw_sit(struct seg_entry *se,
struct f2fs_sit_entry *rs)
{
@@ -385,8 +423,8 @@ static inline void __seg_info_to_raw_sit(struct seg_entry *se,
rs->mtime = cpu_to_le64(se->mtime);
}
-static inline void seg_info_to_sit_page(struct f2fs_sb_info *sbi,
- struct page *page, unsigned int start)
+static inline void seg_info_to_sit_folio(struct f2fs_sb_info *sbi,
+ struct folio *folio, unsigned int start)
{
struct f2fs_sit_block *raw_sit;
struct seg_entry *se;
@@ -395,7 +433,7 @@ static inline void seg_info_to_sit_page(struct f2fs_sb_info *sbi,
(unsigned long)MAIN_SEGS(sbi));
int i;
- raw_sit = (struct f2fs_sit_block *)page_address(page);
+ raw_sit = folio_address(folio);
memset(raw_sit, 0, PAGE_SIZE);
for (i = 0; i < end - start; i++) {
rs = &raw_sit->entries[i];
@@ -429,7 +467,6 @@ static inline void __set_free(struct f2fs_sb_info *sbi, unsigned int segno)
unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno);
unsigned int next;
- unsigned int usable_segs = f2fs_usable_segs_in_sec(sbi);
spin_lock(&free_i->segmap_lock);
clear_bit(segno, free_i->free_segmap);
@@ -437,7 +474,7 @@ static inline void __set_free(struct f2fs_sb_info *sbi, unsigned int segno)
next = find_next_bit(free_i->free_segmap,
start_segno + SEGS_PER_SEC(sbi), start_segno);
- if (next >= start_segno + usable_segs) {
+ if (next >= start_segno + f2fs_usable_segs_in_sec(sbi)) {
clear_bit(secno, free_i->free_secmap);
free_i->free_sections++;
}
@@ -463,22 +500,36 @@ static inline void __set_test_and_free(struct f2fs_sb_info *sbi,
unsigned int secno = GET_SEC_FROM_SEG(sbi, segno);
unsigned int start_segno = GET_SEG_FROM_SEC(sbi, secno);
unsigned int next;
- unsigned int usable_segs = f2fs_usable_segs_in_sec(sbi);
+ bool ret;
spin_lock(&free_i->segmap_lock);
- if (test_and_clear_bit(segno, free_i->free_segmap)) {
- free_i->free_segments++;
-
- if (!inmem && IS_CURSEC(sbi, secno))
- goto skip_free;
- next = find_next_bit(free_i->free_segmap,
- start_segno + SEGS_PER_SEC(sbi), start_segno);
- if (next >= start_segno + usable_segs) {
- if (test_and_clear_bit(secno, free_i->free_secmap))
- free_i->free_sections++;
- }
- }
-skip_free:
+ ret = test_and_clear_bit(segno, free_i->free_segmap);
+ if (!ret)
+ goto unlock_out;
+
+ free_i->free_segments++;
+
+ if (!inmem && IS_CURSEC(sbi, secno))
+ goto unlock_out;
+
+ /* check large section */
+ next = find_next_bit(free_i->free_segmap,
+ start_segno + SEGS_PER_SEC(sbi), start_segno);
+ if (next < start_segno + f2fs_usable_segs_in_sec(sbi))
+ goto unlock_out;
+
+ ret = test_and_clear_bit(secno, free_i->free_secmap);
+ if (!ret)
+ goto unlock_out;
+
+ free_i->free_sections++;
+
+ if (GET_SEC_FROM_SEG(sbi, sbi->next_victim_seg[BG_GC]) == secno)
+ sbi->next_victim_seg[BG_GC] = NULL_SEGNO;
+ if (GET_SEC_FROM_SEG(sbi, sbi->next_victim_seg[FG_GC]) == secno)
+ sbi->next_victim_seg[FG_GC] = NULL_SEGNO;
+
+unlock_out:
spin_unlock(&free_i->segmap_lock);
}
@@ -569,8 +620,14 @@ static inline bool has_curseg_enough_space(struct f2fs_sb_info *sbi,
if (unlikely(segno == NULL_SEGNO))
return false;
- left_blocks = CAP_BLKS_PER_SEC(sbi) -
- get_ckpt_valid_blocks(sbi, segno, true);
+ if (f2fs_lfs_mode(sbi) && __is_large_section(sbi)) {
+ left_blocks = CAP_BLKS_PER_SEC(sbi) -
+ SEGS_TO_BLKS(sbi, (segno - GET_START_SEG_FROM_SEC(sbi, segno))) -
+ CURSEG_I(sbi, i)->next_blkoff;
+ } else {
+ left_blocks = CAP_BLKS_PER_SEC(sbi) -
+ get_ckpt_valid_blocks(sbi, segno, true);
+ }
blocks = i <= CURSEG_COLD_DATA ? data_blocks : node_blocks;
if (blocks > left_blocks)
@@ -583,8 +640,15 @@ static inline bool has_curseg_enough_space(struct f2fs_sb_info *sbi,
if (unlikely(segno == NULL_SEGNO))
return false;
- left_blocks = CAP_BLKS_PER_SEC(sbi) -
- get_ckpt_valid_blocks(sbi, segno, true);
+ if (f2fs_lfs_mode(sbi) && __is_large_section(sbi)) {
+ left_blocks = CAP_BLKS_PER_SEC(sbi) -
+ SEGS_TO_BLKS(sbi, (segno - GET_START_SEG_FROM_SEC(sbi, segno))) -
+ CURSEG_I(sbi, CURSEG_HOT_DATA)->next_blkoff;
+ } else {
+ left_blocks = CAP_BLKS_PER_SEC(sbi) -
+ get_ckpt_valid_blocks(sbi, segno, true);
+ }
+
if (dent_blocks > left_blocks)
return false;
return true;
generated by cgit (git 2.34.1) at 2025-05-31 23:13:44 +0000