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Date: Tue, 16 Apr 2024 15:23:15 +0800
From: Chao Yu <chao@...nel.org>
To: jaegeuk@...nel.org
Cc: linux-f2fs-devel@...ts.sourceforge.net,
linux-kernel@...r.kernel.org,
Chao Yu <chao@...nel.org>
Subject: [PATCH 1/4] f2fs: convert f2fs_mpage_readpages() to use folio
Convert f2fs_mpage_readpages() to use folio and related
functionality.
Signed-off-by: Chao Yu <chao@...nel.org>
---
fs/f2fs/data.c | 80 +++++++++++++++++++++++++-------------------------
1 file changed, 40 insertions(+), 40 deletions(-)
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 9c5512be1a1b..14dcd621acaa 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2374,7 +2374,7 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
* Major change was from block_size == page_size in f2fs by default.
*/
static int f2fs_mpage_readpages(struct inode *inode,
- struct readahead_control *rac, struct page *page)
+ struct readahead_control *rac, struct folio *folio)
{
struct bio *bio = NULL;
sector_t last_block_in_bio = 0;
@@ -2394,6 +2394,7 @@ static int f2fs_mpage_readpages(struct inode *inode,
#endif
unsigned nr_pages = rac ? readahead_count(rac) : 1;
unsigned max_nr_pages = nr_pages;
+ pgoff_t index;
int ret = 0;
map.m_pblk = 0;
@@ -2407,64 +2408,63 @@ static int f2fs_mpage_readpages(struct inode *inode,
for (; nr_pages; nr_pages--) {
if (rac) {
- page = readahead_page(rac);
- prefetchw(&page->flags);
+ folio = readahead_folio(rac);
+ prefetchw(&folio->flags);
}
-#ifdef CONFIG_F2FS_FS_COMPRESSION
- if (f2fs_compressed_file(inode)) {
- /* there are remained compressed pages, submit them */
- if (!f2fs_cluster_can_merge_page(&cc, page->index)) {
- ret = f2fs_read_multi_pages(&cc, &bio,
- max_nr_pages,
- &last_block_in_bio,
- rac != NULL, false);
- f2fs_destroy_compress_ctx(&cc, false);
- if (ret)
- goto set_error_page;
- }
- if (cc.cluster_idx == NULL_CLUSTER) {
- if (nc_cluster_idx ==
- page->index >> cc.log_cluster_size) {
- goto read_single_page;
- }
-
- ret = f2fs_is_compressed_cluster(inode, page->index);
- if (ret < 0)
- goto set_error_page;
- else if (!ret) {
- nc_cluster_idx =
- page->index >> cc.log_cluster_size;
- goto read_single_page;
- }
+ index = folio_index(folio);
- nc_cluster_idx = NULL_CLUSTER;
- }
- ret = f2fs_init_compress_ctx(&cc);
+#ifdef CONFIG_F2FS_FS_COMPRESSION
+ if (!f2fs_compressed_file(inode))
+ goto read_single_page;
+
+ /* there are remained compressed pages, submit them */
+ if (!f2fs_cluster_can_merge_page(&cc, index)) {
+ ret = f2fs_read_multi_pages(&cc, &bio,
+ max_nr_pages,
+ &last_block_in_bio,
+ rac != NULL, false);
+ f2fs_destroy_compress_ctx(&cc, false);
if (ret)
goto set_error_page;
+ }
+ if (cc.cluster_idx == NULL_CLUSTER) {
+ if (nc_cluster_idx == index >> cc.log_cluster_size)
+ goto read_single_page;
- f2fs_compress_ctx_add_page(&cc, page);
+ ret = f2fs_is_compressed_cluster(inode, index);
+ if (ret < 0)
+ goto set_error_page;
+ else if (!ret) {
+ nc_cluster_idx =
+ index >> cc.log_cluster_size;
+ goto read_single_page;
+ }
- goto next_page;
+ nc_cluster_idx = NULL_CLUSTER;
}
+ ret = f2fs_init_compress_ctx(&cc);
+ if (ret)
+ goto set_error_page;
+
+ f2fs_compress_ctx_add_page(&cc, &folio->page);
+
+ goto next_page;
read_single_page:
#endif
- ret = f2fs_read_single_page(inode, page, max_nr_pages, &map,
+ ret = f2fs_read_single_page(inode, &folio->page, max_nr_pages, &map,
&bio, &last_block_in_bio, rac);
if (ret) {
#ifdef CONFIG_F2FS_FS_COMPRESSION
set_error_page:
#endif
- zero_user_segment(page, 0, PAGE_SIZE);
- unlock_page(page);
+ folio_zero_segment(folio, 0, folio_size(folio));
+ folio_unlock(folio);
}
#ifdef CONFIG_F2FS_FS_COMPRESSION
next_page:
#endif
- if (rac)
- put_page(page);
#ifdef CONFIG_F2FS_FS_COMPRESSION
if (f2fs_compressed_file(inode)) {
@@ -2501,7 +2501,7 @@ static int f2fs_read_data_folio(struct file *file, struct folio *folio)
if (f2fs_has_inline_data(inode))
ret = f2fs_read_inline_data(inode, page);
if (ret == -EAGAIN)
- ret = f2fs_mpage_readpages(inode, NULL, page);
+ ret = f2fs_mpage_readpages(inode, NULL, folio);
return ret;
}
--
2.40.1
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