[PATCH 10/17] nilfs2: Convert nilfs_readdir to use a folio

From: Ryusuke Konishi
Date: Mon Nov 27 2023 - 09:32:22 EST


From: "Matthew Wilcox (Oracle)" <willy@xxxxxxxxxxxxx>

Use the new folio APIs to remove calls to compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
---
fs/nilfs2/dir.c | 10 +++++-----
1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/fs/nilfs2/dir.c b/fs/nilfs2/dir.c
index 5c9ca3f0d7f4..c7b046589877 100644
--- a/fs/nilfs2/dir.c
+++ b/fs/nilfs2/dir.c
@@ -284,9 +284,9 @@ static int nilfs_readdir(struct file *file, struct dir_context *ctx)
for ( ; n < npages; n++, offset = 0) {
char *kaddr, *limit;
struct nilfs_dir_entry *de;
- struct page *page;
+ struct folio *folio;

- kaddr = nilfs_get_page(inode, n, &page);
+ kaddr = nilfs_get_folio(inode, n, &folio);
if (IS_ERR(kaddr)) {
nilfs_error(sb, "bad page in #%lu", inode->i_ino);
ctx->pos += PAGE_SIZE - offset;
@@ -298,7 +298,7 @@ static int nilfs_readdir(struct file *file, struct dir_context *ctx)
for ( ; (char *)de <= limit; de = nilfs_next_entry(de)) {
if (de->rec_len == 0) {
nilfs_error(sb, "zero-length directory entry");
- unmap_and_put_page(page, kaddr);
+ folio_release_kmap(folio, kaddr);
return -EIO;
}
if (de->inode) {
@@ -311,13 +311,13 @@ static int nilfs_readdir(struct file *file, struct dir_context *ctx)

if (!dir_emit(ctx, de->name, de->name_len,
le64_to_cpu(de->inode), t)) {
- unmap_and_put_page(page, kaddr);
+ folio_release_kmap(folio, kaddr);
return 0;
}
}
ctx->pos += nilfs_rec_len_from_disk(de->rec_len);
}
- unmap_and_put_page(page, kaddr);
+ folio_release_kmap(folio, kaddr);
}
return 0;
}
--
2.34.1