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Message-ID: <20260110235405.2783424-1-daeho43@gmail.com>
Date: Sat, 10 Jan 2026 15:54:05 -0800
From: Daeho Jeong <daeho43@...il.com>
To: linux-kernel@...r.kernel.org,
linux-f2fs-devel@...ts.sourceforge.net,
kernel-team@...roid.com
Cc: Daeho Jeong <daehojeong@...gle.com>
Subject: [PATCH v3] f2fs: support non-4KB block size without packed_ssa feature
From: Daeho Jeong <daehojeong@...gle.com>
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.
Fixes: 7ee8bc3942f2 ("f2fs: revert summary entry count from 2048 to 512 in 16kb block support")
Signed-off-by: Daeho Jeong <daehojeong@...gle.com>
---
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;
/*
--
2.52.0.457.g6b5491de43-goog
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