On 1/11/2026 7:54 AM, Daeho Jeong wrote:
From: Daeho Jeong <[email protected]>

Currently, F2FS requires the packed_ssa feature to be enabled when
utilizing non-4KB block sizes (e.g., 16KB). This restriction limits
the flexibility of filesystem formatting options.

This patch allows F2FS to support non-4KB block sizes even when the
packed_ssa feature is disabled. It adjusts the SSA calculation logic to
correctly handle summary entries in larger blocks without the packed
layout.


Cc: [email protected]

Otherwise, it looks good to me.

Reviewed-by: Chao Yu <[email protected]>

Thanks,

Thanks,

Fixes: 7ee8bc3942f2 ("f2fs: revert summary entry count from 2048 to 512 in 16kb 
block support")
Signed-off-by: Daeho Jeong <[email protected]>
---
v3: save all calculated summary block related macro values into sbi and
reuse them
v2: using sbi->sum_blocksize instead of F2FS_SUM_BLKSIZE()
---
  fs/f2fs/f2fs.h          | 54 ++++++++++++++++++--------
  fs/f2fs/gc.c            | 23 +++++------
  fs/f2fs/node.c          | 12 +++---
  fs/f2fs/recovery.c      |  6 +--
  fs/f2fs/segment.c       | 86 ++++++++++++++++++++++-------------------
  fs/f2fs/segment.h       |  9 ++---
  fs/f2fs/super.c         | 26 ++++++-------
  include/linux/f2fs_fs.h | 73 ++++++++++++++++++++--------------
  8 files changed, 166 insertions(+), 123 deletions(-)

diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 20edbb99b814..027fc4067119 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -521,13 +521,25 @@ struct fsync_inode_entry {
  #define nats_in_cursum(jnl)           (le16_to_cpu((jnl)->n_nats))
  #define sits_in_cursum(jnl)           (le16_to_cpu((jnl)->n_sits))
-#define nat_in_journal(jnl, i) ((jnl)->nat_j.entries[i].ne)
-#define nid_in_journal(jnl, i)         ((jnl)->nat_j.entries[i].nid)
-#define sit_in_journal(jnl, i)         ((jnl)->sit_j.entries[i].se)
-#define segno_in_journal(jnl, i)       ((jnl)->sit_j.entries[i].segno)
-
-#define MAX_NAT_JENTRIES(jnl)  (NAT_JOURNAL_ENTRIES - nats_in_cursum(jnl))
-#define MAX_SIT_JENTRIES(jnl)  (SIT_JOURNAL_ENTRIES - sits_in_cursum(jnl))
+#define nat_in_journal(jnl, i) \
+       (((struct nat_journal_entry *)(jnl)->nat_j.entries)[i].ne)
+#define nid_in_journal(jnl, i) \
+       (((struct nat_journal_entry *)(jnl)->nat_j.entries)[i].nid)
+#define sit_in_journal(jnl, i) \
+       (((struct sit_journal_entry *)(jnl)->sit_j.entries)[i].se)
+#define segno_in_journal(jnl, i) \
+       (((struct sit_journal_entry *)(jnl)->sit_j.entries)[i].segno)
+
+#define sum_entries(sum)       ((struct f2fs_summary *)(sum))
+#define sum_journal(sbi, sum) \
+       ((struct f2fs_journal *)((char *)(sum) + \
+       ((sbi)->entries_in_sum * sizeof(struct f2fs_summary))))
+#define sum_footer(sbi, sum) \
+       ((struct summary_footer *)((char *)(sum) + (sbi)->sum_blocksize - \
+       sizeof(struct summary_footer)))
+
+#define MAX_NAT_JENTRIES(sbi, jnl)     ((sbi)->nat_journal_entries - 
nats_in_cursum(jnl))
+#define MAX_SIT_JENTRIES(sbi, jnl)     ((sbi)->sit_journal_entries - 
sits_in_cursum(jnl))
static inline int update_nats_in_cursum(struct f2fs_journal *journal, int i)
  {
@@ -545,14 +557,6 @@ static inline int update_sits_in_cursum(struct 
f2fs_journal *journal, int i)
        return before;
  }
-static inline bool __has_cursum_space(struct f2fs_journal *journal,
-                                                       int size, int type)
-{
-       if (type == NAT_JOURNAL)
-               return size <= MAX_NAT_JENTRIES(journal);
-       return size <= MAX_SIT_JENTRIES(journal);
-}
-
  /* for inline stuff */
  #define DEF_INLINE_RESERVED_SIZE      1
  static inline int get_extra_isize(struct inode *inode);
@@ -1764,6 +1768,15 @@ struct f2fs_sb_info {
        bool readdir_ra;                        /* readahead inode in readdir */
        u64 max_io_bytes;                       /* max io bytes to merge IOs */
+ /* variable summary block units */
+       unsigned int sum_blocksize;             /* sum block size */
+       unsigned int sums_per_block;            /* sum block count per block */
+       unsigned int entries_in_sum;            /* entry count in sum block */
+       unsigned int sum_entry_size;            /* total entry size in sum 
block */
+       unsigned int sum_journal_size;          /* journal size in sum block */
+       unsigned int nat_journal_entries;       /* nat journal entry count in 
the journal */
+       unsigned int sit_journal_entries;       /* sit journal entry count in 
the journal */
+
        block_t user_block_count;               /* # of user blocks */
        block_t total_valid_block_count;        /* # of valid blocks */
        block_t discard_blks;                   /* discard command candidats */
@@ -2813,6 +2826,14 @@ static inline block_t __start_sum_addr(struct 
f2fs_sb_info *sbi)
        return le32_to_cpu(F2FS_CKPT(sbi)->cp_pack_start_sum);
  }
+static inline bool __has_cursum_space(struct f2fs_sb_info *sbi,
+                       struct f2fs_journal *journal, int size, int type)
+{
+       if (type == NAT_JOURNAL)
+               return size <= MAX_NAT_JENTRIES(sbi, journal);
+       return size <= MAX_SIT_JENTRIES(sbi, journal);
+}
+
  extern void f2fs_mark_inode_dirty_sync(struct inode *inode, bool sync);
  static inline int inc_valid_node_count(struct f2fs_sb_info *sbi,
                                        struct inode *inode, bool is_inode)
@@ -3956,7 +3977,8 @@ void f2fs_wait_on_block_writeback_range(struct inode 
*inode, block_t blkaddr,
                                                                block_t len);
  void f2fs_write_data_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
  void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, block_t start_blk);
-int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
+int f2fs_lookup_journal_in_cursum(struct f2fs_sb_info *sbi,
+                       struct f2fs_journal *journal, int type,
                        unsigned int val, int alloc);
  void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc);
  int f2fs_check_and_fix_write_pointer(struct f2fs_sb_info *sbi);
diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 384fa7e2085b..20da9a1336c5 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1769,8 +1769,8 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
sanity_check_seg_type(sbi, get_seg_entry(sbi, segno)->type); - segno = rounddown(segno, SUMS_PER_BLOCK);
-       sum_blk_cnt = DIV_ROUND_UP(end_segno - segno, SUMS_PER_BLOCK);
+       segno = rounddown(segno, sbi->sums_per_block);
+       sum_blk_cnt = DIV_ROUND_UP(end_segno - segno, sbi->sums_per_block);
        /* readahead multi ssa blocks those have contiguous address */
        if (__is_large_section(sbi))
                f2fs_ra_meta_pages(sbi, GET_SUM_BLOCK(sbi, segno),
@@ -1780,17 +1780,17 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
        while (segno < end_segno) {
                struct folio *sum_folio = f2fs_get_sum_folio(sbi, segno);
- segno += SUMS_PER_BLOCK;
+               segno += sbi->sums_per_block;
                if (IS_ERR(sum_folio)) {
                        int err = PTR_ERR(sum_folio);
- end_segno = segno - SUMS_PER_BLOCK;
-                       segno = rounddown(start_segno, SUMS_PER_BLOCK);
+                       end_segno = segno - sbi->sums_per_block;
+                       segno = rounddown(start_segno, sbi->sums_per_block);
                        while (segno < end_segno) {
                                sum_folio = filemap_get_folio(META_MAPPING(sbi),
                                                GET_SUM_BLOCK(sbi, segno));
                                folio_put_refs(sum_folio, 2);
-                               segno += SUMS_PER_BLOCK;
+                               segno += sbi->sums_per_block;
                        }
                        return err;
                }
@@ -1806,8 +1806,8 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
                /* find segment summary of victim */
                struct folio *sum_folio = filemap_get_folio(META_MAPPING(sbi),
                                        GET_SUM_BLOCK(sbi, segno));
-               unsigned int block_end_segno = rounddown(segno, SUMS_PER_BLOCK)
-                                       + SUMS_PER_BLOCK;
+               unsigned int block_end_segno = rounddown(segno, 
sbi->sums_per_block)
+                                       + sbi->sums_per_block;
if (block_end_segno > end_segno)
                        block_end_segno = end_segno;
@@ -1833,12 +1833,13 @@ static int do_garbage_collect(struct f2fs_sb_info *sbi,
                                        migrated >= sbi->migration_granularity)
                                continue;
- sum = SUM_BLK_PAGE_ADDR(sum_folio, cur_segno);
-                       if (type != GET_SUM_TYPE((&sum->footer))) {
+                       sum = SUM_BLK_PAGE_ADDR(sbi, sum_folio, cur_segno);
+                       if (type != GET_SUM_TYPE(sum_footer(sbi, sum))) {
                                f2fs_err(sbi, "Inconsistent segment (%u) type "
                                                "[%d, %d] in SSA and SIT",
                                                cur_segno, type,
-                                               GET_SUM_TYPE((&sum->footer)));
+                                               GET_SUM_TYPE(
+                                               sum_footer(sbi, sum)));
                                f2fs_stop_checkpoint(sbi, false,
                                                
STOP_CP_REASON_CORRUPTED_SUMMARY);
                                continue;
diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index 482a362f2625..f78d53ec59d4 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -606,7 +606,7 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t nid,
                goto retry;
        }
- i = f2fs_lookup_journal_in_cursum(journal, NAT_JOURNAL, nid, 0);
+       i = f2fs_lookup_journal_in_cursum(sbi, journal, NAT_JOURNAL, nid, 0);
        if (i >= 0) {
                ne = nat_in_journal(journal, i);
                node_info_from_raw_nat(ni, &ne);
@@ -2937,7 +2937,7 @@ int f2fs_restore_node_summary(struct f2fs_sb_info *sbi,
        /* scan the node segment */
        last_offset = BLKS_PER_SEG(sbi);
        addr = START_BLOCK(sbi, segno);
-       sum_entry = &sum->entries[0];
+       sum_entry = sum_entries(sum);
for (i = 0; i < last_offset; i += nrpages, addr += nrpages) {
                nrpages = bio_max_segs(last_offset - i);
@@ -3078,7 +3078,7 @@ static int __flush_nat_entry_set(struct f2fs_sb_info *sbi,
         * #2, flush nat entries to nat page.
         */
        if (enabled_nat_bits(sbi, cpc) ||
-               !__has_cursum_space(journal, set->entry_cnt, NAT_JOURNAL))
+               !__has_cursum_space(sbi, journal, set->entry_cnt, NAT_JOURNAL))
                to_journal = false;
if (to_journal) {
@@ -3101,7 +3101,7 @@ static int __flush_nat_entry_set(struct f2fs_sb_info *sbi,
                f2fs_bug_on(sbi, nat_get_blkaddr(ne) == NEW_ADDR);
if (to_journal) {
-                       offset = f2fs_lookup_journal_in_cursum(journal,
+                       offset = f2fs_lookup_journal_in_cursum(sbi, journal,
                                                        NAT_JOURNAL, nid, 1);
                        f2fs_bug_on(sbi, offset < 0);
                        raw_ne = &nat_in_journal(journal, offset);
@@ -3172,7 +3172,7 @@ int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, 
struct cp_control *cpc)
         * into nat entry set.
         */
        if (enabled_nat_bits(sbi, cpc) ||
-               !__has_cursum_space(journal,
+               !__has_cursum_space(sbi, journal,
                        nm_i->nat_cnt[DIRTY_NAT], NAT_JOURNAL))
                remove_nats_in_journal(sbi);
@@ -3183,7 +3183,7 @@ int f2fs_flush_nat_entries(struct f2fs_sb_info *sbi, struct cp_control *cpc)
                set_idx = setvec[found - 1]->set + 1;
                for (idx = 0; idx < found; idx++)
                        __adjust_nat_entry_set(setvec[idx], &sets,
-                                               MAX_NAT_JENTRIES(journal));
+                                       MAX_NAT_JENTRIES(sbi, journal));
        }
/* flush dirty nats in nat entry set */
diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
index c3415ebb9f50..a6bfc8e759cf 100644
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -514,7 +514,7 @@ static int check_index_in_prev_nodes(struct f2fs_sb_info 
*sbi,
                struct curseg_info *curseg = CURSEG_I(sbi, i);
if (curseg->segno == segno) {
-                       sum = curseg->sum_blk->entries[blkoff];
+                       sum = sum_entries(curseg->sum_blk)[blkoff];
                        goto got_it;
                }
        }
@@ -522,8 +522,8 @@ static int check_index_in_prev_nodes(struct f2fs_sb_info 
*sbi,
        sum_folio = f2fs_get_sum_folio(sbi, segno);
        if (IS_ERR(sum_folio))
                return PTR_ERR(sum_folio);
-       sum_node = SUM_BLK_PAGE_ADDR(sum_folio, segno);
-       sum = sum_node->entries[blkoff];
+       sum_node = SUM_BLK_PAGE_ADDR(sbi, sum_folio, segno);
+       sum = sum_entries(sum_node)[blkoff];
        f2fs_folio_put(sum_folio, true);
  got_it:
        /* Use the locked dnode page and inode */
diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
index c26424f47686..f317abebdb92 100644
--- a/fs/f2fs/segment.c
+++ b/fs/f2fs/segment.c
@@ -2685,12 +2685,12 @@ int f2fs_npages_for_summary_flush(struct f2fs_sb_info 
*sbi, bool for_ra)
                        valid_sum_count += f2fs_curseg_valid_blocks(sbi, i);
        }
- sum_in_page = (PAGE_SIZE - 2 * SUM_JOURNAL_SIZE -
+       sum_in_page = (sbi->sum_blocksize - 2 * sbi->sum_journal_size -
                        SUM_FOOTER_SIZE) / SUMMARY_SIZE;
        if (valid_sum_count <= sum_in_page)
                return 1;
        else if ((valid_sum_count - sum_in_page) <=
-               (PAGE_SIZE - SUM_FOOTER_SIZE) / SUMMARY_SIZE)
+               (sbi->sum_blocksize - SUM_FOOTER_SIZE) / SUMMARY_SIZE)
                return 2;
        return 3;
  }
@@ -2710,7 +2710,7 @@ void f2fs_update_meta_page(struct f2fs_sb_info *sbi,
  {
        struct folio *folio;
- if (SUMS_PER_BLOCK == 1)
+       if (!f2fs_sb_has_packed_ssa(sbi))
                folio = f2fs_grab_meta_folio(sbi, blk_addr);
        else
                folio = f2fs_get_meta_folio_retry(sbi, blk_addr);
@@ -2728,7 +2728,7 @@ static void write_sum_page(struct f2fs_sb_info *sbi,
  {
        struct folio *folio;
- if (SUMS_PER_BLOCK == 1)
+       if (!f2fs_sb_has_packed_ssa(sbi))
                return f2fs_update_meta_page(sbi, (void *)sum_blk,
                                GET_SUM_BLOCK(sbi, segno));
@@ -2736,7 +2736,8 @@ static void write_sum_page(struct f2fs_sb_info *sbi,
        if (IS_ERR(folio))
                return;
- memcpy(SUM_BLK_PAGE_ADDR(folio, segno), sum_blk, sizeof(*sum_blk));
+       memcpy(SUM_BLK_PAGE_ADDR(sbi, folio, segno), sum_blk,
+                       sbi->sum_blocksize);
        folio_mark_dirty(folio);
        f2fs_folio_put(folio, true);
  }
@@ -2755,11 +2756,11 @@ static void write_current_sum_page(struct f2fs_sb_info 
*sbi,
        mutex_lock(&curseg->curseg_mutex);
down_read(&curseg->journal_rwsem);
-       memcpy(&dst->journal, curseg->journal, SUM_JOURNAL_SIZE);
+       memcpy(sum_journal(sbi, dst), curseg->journal, sbi->sum_journal_size);
        up_read(&curseg->journal_rwsem);
- memcpy(dst->entries, src->entries, SUM_ENTRY_SIZE);
-       memcpy(&dst->footer, &src->footer, SUM_FOOTER_SIZE);
+       memcpy(sum_entries(dst), sum_entries(src), sbi->sum_entry_size);
+       memcpy(sum_footer(sbi, dst), sum_footer(sbi, src), SUM_FOOTER_SIZE);
mutex_unlock(&curseg->curseg_mutex); @@ -2932,7 +2933,7 @@ static void reset_curseg(struct f2fs_sb_info *sbi, int type, int modified)
        curseg->next_blkoff = 0;
        curseg->next_segno = NULL_SEGNO;
- sum_footer = &(curseg->sum_blk->footer);
+       sum_footer = sum_footer(sbi, curseg->sum_blk);
        memset(sum_footer, 0, sizeof(struct summary_footer));
sanity_check_seg_type(sbi, seg_type);
@@ -3078,11 +3079,11 @@ static int change_curseg(struct f2fs_sb_info *sbi, int 
type)
        sum_folio = f2fs_get_sum_folio(sbi, new_segno);
        if (IS_ERR(sum_folio)) {
                /* GC won't be able to use stale summary pages by cp_error */
-               memset(curseg->sum_blk, 0, SUM_ENTRY_SIZE);
+               memset(curseg->sum_blk, 0, sbi->sum_entry_size);
                return PTR_ERR(sum_folio);
        }
-       sum_node = SUM_BLK_PAGE_ADDR(sum_folio, new_segno);
-       memcpy(curseg->sum_blk, sum_node, SUM_ENTRY_SIZE);
+       sum_node = SUM_BLK_PAGE_ADDR(sbi, sum_folio, new_segno);
+       memcpy(curseg->sum_blk, sum_node, sbi->sum_entry_size);
        f2fs_folio_put(sum_folio, true);
        return 0;
  }
@@ -3814,7 +3815,7 @@ int f2fs_allocate_data_block(struct f2fs_sb_info *sbi, 
struct folio *folio,
f2fs_wait_discard_bio(sbi, *new_blkaddr); - curseg->sum_blk->entries[curseg->next_blkoff] = *sum;
+       sum_entries(curseg->sum_blk)[curseg->next_blkoff] = *sum;
        if (curseg->alloc_type == SSR) {
                curseg->next_blkoff = f2fs_find_next_ssr_block(sbi, curseg);
        } else {
@@ -4183,7 +4184,7 @@ void f2fs_do_replace_block(struct f2fs_sb_info *sbi, 
struct f2fs_summary *sum,
        }
curseg->next_blkoff = GET_BLKOFF_FROM_SEG0(sbi, new_blkaddr);
-       curseg->sum_blk->entries[curseg->next_blkoff] = *sum;
+       sum_entries(curseg->sum_blk)[curseg->next_blkoff] = *sum;
if (!recover_curseg || recover_newaddr) {
                if (!from_gc)
@@ -4303,12 +4304,12 @@ static int read_compacted_summaries(struct f2fs_sb_info 
*sbi)
/* Step 1: restore nat cache */
        seg_i = CURSEG_I(sbi, CURSEG_HOT_DATA);
-       memcpy(seg_i->journal, kaddr, SUM_JOURNAL_SIZE);
+       memcpy(seg_i->journal, kaddr, sbi->sum_journal_size);
/* Step 2: restore sit cache */
        seg_i = CURSEG_I(sbi, CURSEG_COLD_DATA);
-       memcpy(seg_i->journal, kaddr + SUM_JOURNAL_SIZE, SUM_JOURNAL_SIZE);
-       offset = 2 * SUM_JOURNAL_SIZE;
+       memcpy(seg_i->journal, kaddr + sbi->sum_journal_size, 
sbi->sum_journal_size);
+       offset = 2 * sbi->sum_journal_size;
/* Step 3: restore summary entries */
        for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
@@ -4330,9 +4331,9 @@ static int read_compacted_summaries(struct f2fs_sb_info 
*sbi)
                        struct f2fs_summary *s;
s = (struct f2fs_summary *)(kaddr + offset);
-                       seg_i->sum_blk->entries[j] = *s;
+                       sum_entries(seg_i->sum_blk)[j] = *s;
                        offset += SUMMARY_SIZE;
-                       if (offset + SUMMARY_SIZE <= PAGE_SIZE -
+                       if (offset + SUMMARY_SIZE <= sbi->sum_blocksize -
                                                SUM_FOOTER_SIZE)
                                continue;
@@ -4388,7 +4389,7 @@ static int read_normal_summaries(struct f2fs_sb_info *sbi, int type) if (IS_NODESEG(type)) {
                if (__exist_node_summaries(sbi)) {
-                       struct f2fs_summary *ns = &sum->entries[0];
+                       struct f2fs_summary *ns = sum_entries(sum);
                        int i;
for (i = 0; i < BLKS_PER_SEG(sbi); i++, ns++) {
@@ -4408,11 +4409,13 @@ static int read_normal_summaries(struct f2fs_sb_info 
*sbi, int type)
/* update journal info */
        down_write(&curseg->journal_rwsem);
-       memcpy(curseg->journal, &sum->journal, SUM_JOURNAL_SIZE);
+       memcpy(curseg->journal, sum_journal(sbi, sum), sbi->sum_journal_size);
        up_write(&curseg->journal_rwsem);
- memcpy(curseg->sum_blk->entries, sum->entries, SUM_ENTRY_SIZE);
-       memcpy(&curseg->sum_blk->footer, &sum->footer, SUM_FOOTER_SIZE);
+       memcpy(sum_entries(curseg->sum_blk), sum_entries(sum),
+                       sbi->sum_entry_size);
+       memcpy(sum_footer(sbi, curseg->sum_blk), sum_footer(sbi, sum),
+                       SUM_FOOTER_SIZE);
        curseg->next_segno = segno;
        reset_curseg(sbi, type, 0);
        curseg->alloc_type = ckpt->alloc_type[type];
@@ -4456,8 +4459,8 @@ static int restore_curseg_summaries(struct f2fs_sb_info 
*sbi)
        }
/* sanity check for summary blocks */
-       if (nats_in_cursum(nat_j) > NAT_JOURNAL_ENTRIES ||
-                       sits_in_cursum(sit_j) > SIT_JOURNAL_ENTRIES) {
+       if (nats_in_cursum(nat_j) > sbi->nat_journal_entries ||
+                       sits_in_cursum(sit_j) > sbi->sit_journal_entries) {
                f2fs_err(sbi, "invalid journal entries nats %u sits %u",
                         nats_in_cursum(nat_j), sits_in_cursum(sit_j));
                return -EINVAL;
@@ -4481,13 +4484,13 @@ static void write_compacted_summaries(struct 
f2fs_sb_info *sbi, block_t blkaddr)
/* Step 1: write nat cache */
        seg_i = CURSEG_I(sbi, CURSEG_HOT_DATA);
-       memcpy(kaddr, seg_i->journal, SUM_JOURNAL_SIZE);
-       written_size += SUM_JOURNAL_SIZE;
+       memcpy(kaddr, seg_i->journal, sbi->sum_journal_size);
+       written_size += sbi->sum_journal_size;
/* Step 2: write sit cache */
        seg_i = CURSEG_I(sbi, CURSEG_COLD_DATA);
-       memcpy(kaddr + written_size, seg_i->journal, SUM_JOURNAL_SIZE);
-       written_size += SUM_JOURNAL_SIZE;
+       memcpy(kaddr + written_size, seg_i->journal, sbi->sum_journal_size);
+       written_size += sbi->sum_journal_size;
/* Step 3: write summary entries */
        for (i = CURSEG_HOT_DATA; i <= CURSEG_COLD_DATA; i++) {
@@ -4500,7 +4503,7 @@ static void write_compacted_summaries(struct f2fs_sb_info 
*sbi, block_t blkaddr)
                                written_size = 0;
                        }
                        summary = (struct f2fs_summary *)(kaddr + written_size);
-                       *summary = seg_i->sum_blk->entries[j];
+                       *summary = sum_entries(seg_i->sum_blk)[j];
                        written_size += SUMMARY_SIZE;
if (written_size + SUMMARY_SIZE <= PAGE_SIZE -
@@ -4545,8 +4548,9 @@ void f2fs_write_node_summaries(struct f2fs_sb_info *sbi, 
block_t start_blk)
        write_normal_summaries(sbi, start_blk, CURSEG_HOT_NODE);
  }
-int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
-                                       unsigned int val, int alloc)
+int f2fs_lookup_journal_in_cursum(struct f2fs_sb_info *sbi,
+                       struct f2fs_journal *journal, int type,
+                       unsigned int val, int alloc)
  {
        int i;
@@ -4555,13 +4559,13 @@ int f2fs_lookup_journal_in_cursum(struct f2fs_journal *journal, int type,
                        if (le32_to_cpu(nid_in_journal(journal, i)) == val)
                                return i;
                }
-               if (alloc && __has_cursum_space(journal, 1, NAT_JOURNAL))
+               if (alloc && __has_cursum_space(sbi, journal, 1, NAT_JOURNAL))
                        return update_nats_in_cursum(journal, 1);
        } else if (type == SIT_JOURNAL) {
                for (i = 0; i < sits_in_cursum(journal); i++)
                        if (le32_to_cpu(segno_in_journal(journal, i)) == val)
                                return i;
-               if (alloc && __has_cursum_space(journal, 1, SIT_JOURNAL))
+               if (alloc && __has_cursum_space(sbi, journal, 1, SIT_JOURNAL))
                        return update_sits_in_cursum(journal, 1);
        }
        return -1;
@@ -4709,8 +4713,8 @@ void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, 
struct cp_control *cpc)
         * entries, remove all entries from journal and add and account
         * them in sit entry set.
         */
-       if (!__has_cursum_space(journal, sit_i->dirty_sentries, SIT_JOURNAL) ||
-                                                               !to_journal)
+       if (!__has_cursum_space(sbi, journal,
+                       sit_i->dirty_sentries, SIT_JOURNAL) || !to_journal)
                remove_sits_in_journal(sbi);
/*
@@ -4727,7 +4731,8 @@ void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, 
struct cp_control *cpc)
                unsigned int segno = start_segno;
if (to_journal &&
-                       !__has_cursum_space(journal, ses->entry_cnt, 
SIT_JOURNAL))
+                       !__has_cursum_space(sbi, journal, ses->entry_cnt,
+                               SIT_JOURNAL))
                        to_journal = false;
if (to_journal) {
@@ -4755,7 +4760,7 @@ void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, 
struct cp_control *cpc)
                        }
if (to_journal) {
-                               offset = f2fs_lookup_journal_in_cursum(journal,
+                               offset = f2fs_lookup_journal_in_cursum(sbi, 
journal,
                                                        SIT_JOURNAL, segno, 1);
                                f2fs_bug_on(sbi, offset < 0);
                                segno_in_journal(journal, offset) =
@@ -4962,12 +4967,13 @@ static int build_curseg(struct f2fs_sb_info *sbi)
for (i = 0; i < NO_CHECK_TYPE; i++) {
                mutex_init(&array[i].curseg_mutex);
-               array[i].sum_blk = f2fs_kzalloc(sbi, PAGE_SIZE, GFP_KERNEL);
+               array[i].sum_blk = f2fs_kzalloc(sbi, sbi->sum_blocksize,
+                               GFP_KERNEL);
                if (!array[i].sum_blk)
                        return -ENOMEM;
                init_rwsem(&array[i].journal_rwsem);
                array[i].journal = f2fs_kzalloc(sbi,
-                               sizeof(struct f2fs_journal), GFP_KERNEL);
+                               sbi->sum_journal_size, GFP_KERNEL);
                if (!array[i].journal)
                        return -ENOMEM;
                array[i].seg_type = log_type_to_seg_type(i);
diff --git a/fs/f2fs/segment.h b/fs/f2fs/segment.h
index 07dcbcbeb7c6..3094f2de37b6 100644
--- a/fs/f2fs/segment.h
+++ b/fs/f2fs/segment.h
@@ -90,12 +90,11 @@ static inline void sanity_check_seg_type(struct 
f2fs_sb_info *sbi,
  #define GET_ZONE_FROM_SEG(sbi, segno)                         \
        GET_ZONE_FROM_SEC(sbi, GET_SEC_FROM_SEG(sbi, segno))
-#define SUMS_PER_BLOCK (F2FS_BLKSIZE / F2FS_SUM_BLKSIZE)
  #define GET_SUM_BLOCK(sbi, segno)     \
-       (SM_I(sbi)->ssa_blkaddr + (segno / SUMS_PER_BLOCK))
-#define GET_SUM_BLKOFF(segno) (segno % SUMS_PER_BLOCK)
-#define SUM_BLK_PAGE_ADDR(folio, segno)        \
-       (folio_address(folio) + GET_SUM_BLKOFF(segno) * F2FS_SUM_BLKSIZE)
+       (SM_I(sbi)->ssa_blkaddr + (segno / (sbi)->sums_per_block))
+#define GET_SUM_BLKOFF(sbi, segno) (segno % (sbi)->sums_per_block)
+#define SUM_BLK_PAGE_ADDR(sbi, folio, segno)   \
+       (folio_address(folio) + GET_SUM_BLKOFF(sbi, segno) * 
(sbi)->sum_blocksize)
#define GET_SUM_TYPE(footer) ((footer)->entry_type)
  #define SET_SUM_TYPE(footer, type) ((footer)->entry_type = (type))
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index c4c225e09dc4..554ccd1990df 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -4080,20 +4080,6 @@ static int sanity_check_raw_super(struct f2fs_sb_info 
*sbi,
        if (sanity_check_area_boundary(sbi, folio, index))
                return -EFSCORRUPTED;
- /*
-        * Check for legacy summary layout on 16KB+ block devices.
-        * Modern f2fs-tools packs multiple 4KB summary areas into one block,
-        * whereas legacy versions used one block per summary, leading
-        * to a much larger SSA.
-        */
-       if (SUMS_PER_BLOCK > 1 &&
-                   !(__F2FS_HAS_FEATURE(raw_super, F2FS_FEATURE_PACKED_SSA))) {
-               f2fs_info(sbi, "Error: Device formatted with a legacy version. "
-                       "Please reformat with a tool supporting the packed ssa "
-                       "feature for block sizes larger than 4kb.");
-               return -EOPNOTSUPP;
-       }
-
        return 0;
  }
@@ -4304,6 +4290,18 @@ static void init_sb_info(struct f2fs_sb_info *sbi)
        spin_lock_init(&sbi->gc_remaining_trials_lock);
        atomic64_set(&sbi->current_atomic_write, 0);
+ sbi->sum_blocksize = f2fs_sb_has_packed_ssa(sbi) ?
+               4096 : sbi->blocksize;
+       sbi->sums_per_block = sbi->blocksize / sbi->sum_blocksize;
+       sbi->entries_in_sum = sbi->sum_blocksize / 8;
+       sbi->sum_entry_size = SUMMARY_SIZE * sbi->entries_in_sum;
+       sbi->sum_journal_size = sbi->sum_blocksize - SUM_FOOTER_SIZE -
+               sbi->sum_entry_size;
+       sbi->nat_journal_entries = (sbi->sum_journal_size - 2) /
+               sizeof(struct nat_journal_entry);
+       sbi->sit_journal_entries = (sbi->sum_journal_size - 2) /
+               sizeof(struct sit_journal_entry);
+
        sbi->dir_level = DEF_DIR_LEVEL;
        sbi->interval_time[CP_TIME] = DEF_CP_INTERVAL;
        sbi->interval_time[REQ_TIME] = DEF_IDLE_INTERVAL;
diff --git a/include/linux/f2fs_fs.h b/include/linux/f2fs_fs.h
index a7880787cad3..dc41722fcc9d 100644
--- a/include/linux/f2fs_fs.h
+++ b/include/linux/f2fs_fs.h
@@ -17,7 +17,6 @@
  #define F2FS_LOG_SECTORS_PER_BLOCK    (PAGE_SHIFT - 9) /* log number for 
sector/blk */
  #define F2FS_BLKSIZE                  PAGE_SIZE /* support only block == page 
*/
  #define F2FS_BLKSIZE_BITS             PAGE_SHIFT /* bits for F2FS_BLKSIZE */
-#define F2FS_SUM_BLKSIZE               4096    /* only support 4096 byte sum 
block */
  #define F2FS_MAX_EXTENSION            64      /* # of extension entries */
  #define F2FS_EXTENSION_LEN            8       /* max size of extension */
@@ -442,10 +441,8 @@ struct f2fs_sit_block {
   * from node's page's beginning to get a data block address.
   * ex) data_blkaddr = (block_t)(nodepage_start_address + ofs_in_node)
   */
-#define ENTRIES_IN_SUM         (F2FS_SUM_BLKSIZE / 8)
  #define       SUMMARY_SIZE            (7)     /* sizeof(struct f2fs_summary) 
*/
  #define       SUM_FOOTER_SIZE         (5)     /* sizeof(struct 
summary_footer) */
-#define SUM_ENTRY_SIZE         (SUMMARY_SIZE * ENTRIES_IN_SUM)
/* a summary entry for a block in a segment */
  struct f2fs_summary {
@@ -468,22 +465,6 @@ struct summary_footer {
        __le32 check_sum;               /* summary checksum */
  } __packed;
-#define SUM_JOURNAL_SIZE (F2FS_SUM_BLKSIZE - SUM_FOOTER_SIZE -\
-                               SUM_ENTRY_SIZE)
-#define NAT_JOURNAL_ENTRIES    ((SUM_JOURNAL_SIZE - 2) /\
-                               sizeof(struct nat_journal_entry))
-#define NAT_JOURNAL_RESERVED   ((SUM_JOURNAL_SIZE - 2) %\
-                               sizeof(struct nat_journal_entry))
-#define SIT_JOURNAL_ENTRIES    ((SUM_JOURNAL_SIZE - 2) /\
-                               sizeof(struct sit_journal_entry))
-#define SIT_JOURNAL_RESERVED   ((SUM_JOURNAL_SIZE - 2) %\
-                               sizeof(struct sit_journal_entry))
-
-/* Reserved area should make size of f2fs_extra_info equals to
- * that of nat_journal and sit_journal.
- */
-#define EXTRA_INFO_RESERVED    (SUM_JOURNAL_SIZE - 2 - 8)
-
  /*
   * frequently updated NAT/SIT entries can be stored in the spare area in
   * summary blocks
@@ -498,9 +479,16 @@ struct nat_journal_entry {
        struct f2fs_nat_entry ne;
  } __packed;
+/*
+ * The nat_journal structure is a placeholder whose actual size varies 
depending
+ * on the use of packed_ssa. Therefore, it must always be accessed only through
+ * specific sets of macros and fields, and size calculations should use
+ * size-related macros instead of sizeof().
+ * Relevant macros: sbi->nat_journal_entries, nat_in_journal(),
+ * nid_in_journal(), MAX_NAT_JENTRIES().
+ */
  struct nat_journal {
-       struct nat_journal_entry entries[NAT_JOURNAL_ENTRIES];
-       __u8 reserved[NAT_JOURNAL_RESERVED];
+       struct nat_journal_entry entries[0];
  } __packed;
struct sit_journal_entry {
@@ -508,14 +496,21 @@ struct sit_journal_entry {
        struct f2fs_sit_entry se;
  } __packed;
+/*
+ * The sit_journal structure is a placeholder whose actual size varies 
depending
+ * on the use of packed_ssa. Therefore, it must always be accessed only through
+ * specific sets of macros and fields, and size calculations should use
+ * size-related macros instead of sizeof().
+ * Relevant macros: sbi->sit_journal_entries, sit_in_journal(),
+ * segno_in_journal(), MAX_SIT_JENTRIES().
+ */
  struct sit_journal {
-       struct sit_journal_entry entries[SIT_JOURNAL_ENTRIES];
-       __u8 reserved[SIT_JOURNAL_RESERVED];
+       struct sit_journal_entry entries[0];
  } __packed;
struct f2fs_extra_info {
        __le64 kbytes_written;
-       __u8 reserved[EXTRA_INFO_RESERVED];
+       __u8 reserved[];
  } __packed;
struct f2fs_journal {
@@ -531,11 +526,33 @@ struct f2fs_journal {
        };
  } __packed;
-/* Block-sized summary block structure */
+/*
+ * Block-sized summary block structure
+ *
+ * The f2fs_summary_block structure is a placeholder whose actual size varies
+ * depending on the use of packed_ssa. Therefore, it must always be accessed
+ * only through specific sets of macros and fields, and size calculations 
should
+ * use size-related macros instead of sizeof().
+ * Relevant macros: sbi->sum_blocksize, sbi->entries_in_sum,
+ * sbi->sum_entry_size, sum_entries(), sum_journal(), sum_footer().
+ *
+ * Summary Block Layout
+ *
+ * +-----------------------+ <--- Block Start
+ * | struct f2fs_summary   |
+ * | entries[0]            |
+ * | ...                   |
+ * | entries[N-1]          |
+ * +-----------------------+
+ * | struct f2fs_journal   |
+ * +-----------------------+
+ * | struct summary_footer |
+ * +-----------------------+ <--- Block End
+ */
  struct f2fs_summary_block {
-       struct f2fs_summary entries[ENTRIES_IN_SUM];
-       struct f2fs_journal journal;
-       struct summary_footer footer;
+       struct f2fs_summary entries[0];
+       // struct f2fs_journal journal;
+       // struct summary_footer footer;
  } __packed;
/*



_______________________________________________
Linux-f2fs-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel

Reply via email to