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