ext2: Convert ext2_readdir to use a folio

Saves a hidden call to compound_head().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Signed-off-by: Jan Kara <jack@suse.cz>
Message-Id: <20230921200746.3303942-4-willy@infradead.org>
This commit is contained in:
Matthew Wilcox (Oracle) 2023-09-21 21:07:41 +01:00 committed by Jan Kara
parent 52df49ee83
commit 51706b6fd4

View File

@ -286,8 +286,8 @@ ext2_readdir(struct file *file, struct dir_context *ctx)
for ( ; n < npages; n++, offset = 0) {
ext2_dirent *de;
struct page *page;
char *kaddr = ext2_get_page(inode, n, 0, &page);
struct folio *folio;
char *kaddr = ext2_get_folio(inode, n, 0, &folio);
char *limit;
if (IS_ERR(kaddr)) {
@ -311,7 +311,7 @@ ext2_readdir(struct file *file, struct dir_context *ctx)
if (de->rec_len == 0) {
ext2_error(sb, __func__,
"zero-length directory entry");
ext2_put_page(page, de);
folio_release_kmap(folio, de);
return -EIO;
}
if (de->inode) {
@ -323,13 +323,13 @@ ext2_readdir(struct file *file, struct dir_context *ctx)
if (!dir_emit(ctx, de->name, de->name_len,
le32_to_cpu(de->inode),
d_type)) {
ext2_put_page(page, de);
folio_release_kmap(folio, de);
return 0;
}
}
ctx->pos += ext2_rec_len_from_disk(de->rec_len);
}
ext2_put_page(page, kaddr);
folio_release_kmap(folio, kaddr);
}
return 0;
}