On 7/9/25 01:03, Matthew Wilcox (Oracle) wrote:
> All callers now have a folio so pass it in. Also remove the test for
> the private flag; it is redundant with checking folio->private for being
> NULL.
>
> Signed-off-by: Matthew Wilcox (Oracle) <wi...@infradead.org>
> ---
> fs/f2fs/compress.c | 14 ++++++--------
> fs/f2fs/data.c | 10 +++++-----
> fs/f2fs/f2fs.h | 4 ++--
> 3 files changed, 13 insertions(+), 15 deletions(-)
>
> diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c
> index 5847d22a5833..24c7489b7427 100644
> --- a/fs/f2fs/compress.c
> +++ b/fs/f2fs/compress.c
> @@ -71,17 +71,15 @@ static pgoff_t start_idx_of_cluster(struct compress_ctx
> *cc)
> return cc->cluster_idx << cc->log_cluster_size;
> }
>
> -bool f2fs_is_compressed_page(struct page *page)
> +bool f2fs_is_compressed_page(struct folio *folio)
> {
> - if (!PagePrivate(page))
> + if (!folio->private)
> return false;
> - if (!page_private(page))
> - return false;
> - if (page_private_nonpointer(page))
> + if (folio_test_f2fs_nonpointer(folio))
Hi Matthew,
Is this indicate if folio->private is non-zero, Private flag must have been
set in the folio?
Something like below function, if folio->private is true, we don't need to
set Private flag again after update folio->private, since it assumes it
should have been set previously? Is my understanding correct?
+static inline void folio_set_f2fs_##name(struct folio *folio) \
+{ \
+ unsigned long v = (1UL << PAGE_PRIVATE_NOT_POINTER) | \
+ (1UL << PAGE_PRIVATE_##flagname); \
+ if (!folio->private) \
+ folio_attach_private(folio, (void *)v); \
+ else { \
+ v |= (unsigned long)folio->private; \
+ folio->private = (void *)v; \
+ } \
+} \
Thanks,
> return false;
>
> - f2fs_bug_on(F2FS_P_SB(page),
> - *((u32 *)page_private(page)) != F2FS_COMPRESSED_PAGE_MAGIC);
> + f2fs_bug_on(F2FS_F_SB(folio),
> + *((u32 *)folio->private) != F2FS_COMPRESSED_PAGE_MAGIC);
> return true;
> }
>
> @@ -1478,7 +1476,7 @@ void f2fs_compress_write_end_io(struct bio *bio, struct
> folio *folio)
> struct f2fs_sb_info *sbi = bio->bi_private;
> struct compress_io_ctx *cic = folio->private;
> enum count_type type = WB_DATA_TYPE(folio,
> - f2fs_is_compressed_page(page));
> + f2fs_is_compressed_page(folio));
> int i;
>
> if (unlikely(bio->bi_status != BLK_STS_OK))
> diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
> index cf2c146944bf..116482adf591 100644
> --- a/fs/f2fs/data.c
> +++ b/fs/f2fs/data.c
> @@ -142,7 +142,7 @@ static void f2fs_finish_read_bio(struct bio *bio, bool
> in_task)
> bio_for_each_folio_all(fi, bio) {
> struct folio *folio = fi.folio;
>
> - if (f2fs_is_compressed_page(&folio->page)) {
> + if (f2fs_is_compressed_page(folio)) {
> if (ctx && !ctx->decompression_attempted)
> f2fs_end_read_compressed_page(folio, true, 0,
> in_task);
> @@ -186,7 +186,7 @@ static void f2fs_verify_bio(struct work_struct *work)
> bio_for_each_folio_all(fi, bio) {
> struct folio *folio = fi.folio;
>
> - if (!f2fs_is_compressed_page(&folio->page) &&
> + if (!f2fs_is_compressed_page(folio) &&
> !fsverity_verify_page(&folio->page)) {
> bio->bi_status = BLK_STS_IOERR;
> break;
> @@ -239,7 +239,7 @@ static void f2fs_handle_step_decompress(struct
> bio_post_read_ctx *ctx,
> bio_for_each_folio_all(fi, ctx->bio) {
> struct folio *folio = fi.folio;
>
> - if (f2fs_is_compressed_page(&folio->page))
> + if (f2fs_is_compressed_page(folio))
> f2fs_end_read_compressed_page(folio, false, blkaddr,
> in_task);
> else
> @@ -337,7 +337,7 @@ static void f2fs_write_end_io(struct bio *bio)
> }
>
> #ifdef CONFIG_F2FS_FS_COMPRESSION
> - if (f2fs_is_compressed_page(&folio->page)) {
> + if (f2fs_is_compressed_page(folio)) {
> f2fs_compress_write_end_io(bio, folio);
> continue;
> }
> @@ -561,7 +561,7 @@ static bool __has_merged_page(struct bio *bio, struct
> inode *inode,
> if (IS_ERR(target))
> continue;
> }
> - if (f2fs_is_compressed_page(&target->page)) {
> + if (f2fs_is_compressed_page(target)) {
> target = f2fs_compress_control_folio(target);
> if (IS_ERR(target))
> continue;
> diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
> index 68535b917a3a..48b15e44a41c 100644
> --- a/fs/f2fs/f2fs.h
> +++ b/fs/f2fs/f2fs.h
> @@ -4474,7 +4474,7 @@ enum cluster_check_type {
> CLUSTER_COMPR_BLKS, /* return # of compressed blocks in a cluster */
> CLUSTER_RAW_BLKS /* return # of raw blocks in a cluster */
> };
> -bool f2fs_is_compressed_page(struct page *page);
> +bool f2fs_is_compressed_page(struct folio *folio);
> struct folio *f2fs_compress_control_folio(struct folio *folio);
> int f2fs_prepare_compress_overwrite(struct inode *inode,
> struct page **pagep, pgoff_t index, void **fsdata);
> @@ -4543,7 +4543,7 @@ void f2fs_invalidate_compress_pages(struct f2fs_sb_info
> *sbi, nid_t ino);
> sbi->compr_saved_block += diff; \
> } while (0)
> #else
> -static inline bool f2fs_is_compressed_page(struct page *page) { return
> false; }
> +static inline bool f2fs_is_compressed_page(struct folio *folio) { return
> false; }
> static inline bool f2fs_is_compress_backend_ready(struct inode *inode)
> {
> if (!f2fs_compressed_file(inode))
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