On 04/29, Daejun Park wrote:
> This patch separates the APIs for nat and sit.
>
> f2fs_lookup_journal_in_cursum -> f2fs_lookup_journal_{nats|sits}_in_cursum
> __has_cursum_space -> __has_{nats|sits}_in_cursum_space
I don't get why we need this?
>
> Signed-off-by: Daejun Park <daejun7.p...@samsung.com>
> ---
> fs/f2fs/f2fs.h | 16 +++++++++++-----
> fs/f2fs/node.c | 11 +++++------
> fs/f2fs/segment.c | 46 +++++++++++++++++++++++++++-------------------
> 3 files changed, 43 insertions(+), 30 deletions(-)
>
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index b9d5317db0a7..e264fedacc9e 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -416,11 +416,15 @@ 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)
> +static inline bool __has_nats_in_cursum_space(struct f2fs_journal *journal,
> + int size)
> +{
> + return size <= MAX_NAT_JENTRIES(journal);
> +}
> +
> +static inline bool __has_sits_in_cursum_space(struct f2fs_journal *journal,
> + int size)
> {
> - if (type == NAT_JOURNAL)
> - return size <= MAX_NAT_JENTRIES(journal);
> return size <= MAX_SIT_JENTRIES(journal);
> }
>
> @@ -3420,7 +3424,9 @@ 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_sits_in_cursum(struct f2fs_journal *journal,
> + unsigned int val, int alloc);
> +int f2fs_lookup_journal_nats_in_cursum(struct f2fs_journal *journal,
> unsigned int val, int alloc);
> void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi, struct cp_control
> *cpc);
> int f2fs_fix_curseg_write_pointer(struct f2fs_sb_info *sbi);
> diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
> index e67ce5f13b98..cb295eb8ed91 100644
> --- a/fs/f2fs/node.c
> +++ b/fs/f2fs/node.c
> @@ -554,7 +554,7 @@ int f2fs_get_node_info(struct f2fs_sb_info *sbi, nid_t
> nid,
>
> /* Check current segment summary */
> down_read(&curseg->journal_rwsem);
> - i = f2fs_lookup_journal_in_cursum(journal, NAT_JOURNAL, nid, 0);
> + i = f2fs_lookup_journal_nats_in_cursum(journal, nid, 0);
> if (i >= 0) {
> ne = nat_in_journal(journal, i);
> node_info_from_raw_nat(ni, &ne);
> @@ -2891,7 +2891,7 @@ 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_nats_in_cursum_space(journal, set->entry_cnt))
> to_journal = false;
>
> if (to_journal) {
> @@ -2914,8 +2914,8 @@ 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,
> - NAT_JOURNAL, nid, 1);
> + offset = f2fs_lookup_journal_nats_in_cursum(journal,
> + nid, 1);
> f2fs_bug_on(sbi, offset < 0);
> raw_ne = &nat_in_journal(journal, offset);
> nid_in_journal(journal, offset) = cpu_to_le32(nid);
> @@ -2985,8 +2985,7 @@ 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,
> - nm_i->nat_cnt[DIRTY_NAT], NAT_JOURNAL))
> + !__has_nats_in_cursum_space(journal, nm_i->nat_cnt[DIRTY_NAT]))
> remove_nats_in_journal(sbi);
>
> while ((found = __gang_lookup_nat_set(nm_i,
> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
> index efac388d2468..63bfbc2603ae 100644
> --- a/fs/f2fs/segment.c
> +++ b/fs/f2fs/segment.c
> @@ -4013,25 +4013,33 @@ 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,
> +int f2fs_lookup_journal_nats_in_cursum(struct f2fs_journal *journal,
> unsigned int val, int alloc)
> {
> int i;
>
> - if (type == NAT_JOURNAL) {
> - for (i = 0; i < nats_in_cursum(journal); i++) {
> - if (le32_to_cpu(nid_in_journal(journal, i)) == val)
> - return i;
> - }
> - if (alloc && __has_cursum_space(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))
> - return update_sits_in_cursum(journal, 1);
> - }
> + for (i = 0; i < nats_in_cursum(journal); i++)
> + if (le32_to_cpu(nid_in_journal(journal, i)) == val)
> + return i;
> +
> + if (alloc && __has_nats_in_cursum_space(journal, 1))
> + return update_nats_in_cursum(journal, 1);
> +
> + return -1;
> +}
> +
> +int f2fs_lookup_journal_sits_in_cursum(struct f2fs_journal *journal,
> + unsigned int val, int alloc)
> +{
> + int i;
> +
> + for (i = 0; i < sits_in_cursum(journal); i++)
> + if (le32_to_cpu(segno_in_journal(journal, i)) == val)
> + return i;
> +
> + if (alloc && __has_sits_in_cursum_space(journal, 1))
> + return update_sits_in_cursum(journal, 1);
> +
> return -1;
> }
>
> @@ -4174,7 +4182,7 @@ 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) ||
> + if (!__has_sits_in_cursum_space(journal, sit_i->dirty_sentries) ||
> !to_journal)
> remove_sits_in_journal(sbi);
>
> @@ -4192,7 +4200,7 @@ 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_sits_in_cursum_space(journal, ses->entry_cnt))
> to_journal = false;
>
> if (to_journal) {
> @@ -4220,8 +4228,8 @@ void f2fs_flush_sit_entries(struct f2fs_sb_info *sbi,
> struct cp_control *cpc)
> }
>
> if (to_journal) {
> - offset = f2fs_lookup_journal_in_cursum(journal,
> - SIT_JOURNAL, segno, 1);
> + offset = f2fs_lookup_journal_sits_in_cursum(
> + journal, segno, 1);
> f2fs_bug_on(sbi, offset < 0);
> segno_in_journal(journal, offset) =
> cpu_to_le32(segno);
> --
> 2.25.1
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