diff options
Diffstat (limited to 'fs/isofs/compress.c')
| -rw-r--r-- | fs/isofs/compress.c | 27 |
1 files changed, 14 insertions, 13 deletions
diff --git a/fs/isofs/compress.c b/fs/isofs/compress.c index bc12ac7e2312..c4da3f634b92 100644 --- a/fs/isofs/compress.c +++ b/fs/isofs/compress.c @@ -67,8 +67,7 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start, for ( i = 0 ; i < pcount ; i++ ) { if (!pages[i]) continue; - memset(page_address(pages[i]), 0, PAGE_SIZE); - flush_dcache_page(pages[i]); + memzero_page(pages[i], 0, PAGE_SIZE); SetPageUptodate(pages[i]); } return ((loff_t)pcount) << PAGE_SHIFT; @@ -82,7 +81,7 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start, return 0; } haveblocks = isofs_get_blocks(inode, blocknum, bhs, needblocks); - ll_rw_block(REQ_OP_READ, 0, haveblocks, bhs); + bh_read_batch(haveblocks, bhs); curbh = 0; curpage = 0; @@ -120,7 +119,7 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start, zerr != Z_STREAM_END) { if (!stream.avail_out) { if (pages[curpage]) { - stream.next_out = page_address(pages[curpage]) + stream.next_out = kmap_local_page(pages[curpage]) + poffset; stream.avail_out = PAGE_SIZE - poffset; poffset = 0; @@ -176,6 +175,10 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start, flush_dcache_page(pages[curpage]); SetPageUptodate(pages[curpage]); } + if (stream.next_out != (unsigned char *)zisofs_sink_page) { + kunmap_local(stream.next_out); + stream.next_out = NULL; + } curpage++; } if (!stream.avail_in) @@ -183,6 +186,8 @@ static loff_t zisofs_uncompress_block(struct inode *inode, loff_t block_start, } inflate_out: zlib_inflateEnd(&stream); + if (stream.next_out && stream.next_out != (unsigned char *)zisofs_sink_page) + kunmap_local(stream.next_out); z_eio: mutex_unlock(&zisofs_zlib_lock); @@ -283,9 +288,7 @@ static int zisofs_fill_pages(struct inode *inode, int full_page, int pcount, } if (poffset && *pages) { - memset(page_address(*pages) + poffset, 0, - PAGE_SIZE - poffset); - flush_dcache_page(*pages); + memzero_page(*pages, poffset, PAGE_SIZE - poffset); SetPageUptodate(*pages); } return 0; @@ -296,8 +299,9 @@ static int zisofs_fill_pages(struct inode *inode, int full_page, int pcount, * per reference. We inject the additional pages into the page * cache as a form of readahead. */ -static int zisofs_readpage(struct file *file, struct page *page) +static int zisofs_read_folio(struct file *file, struct folio *folio) { + struct page *page = &folio->page; struct inode *inode = file_inode(file); struct address_space *mapping = inode->i_mapping; int err; @@ -342,10 +346,8 @@ static int zisofs_readpage(struct file *file, struct page *page) for (i = 0; i < pcount; i++, index++) { if (i != full_page) pages[i] = grab_cache_page_nowait(mapping, index); - if (pages[i]) { + if (pages[i]) ClearPageError(pages[i]); - kmap(pages[i]); - } } err = zisofs_fill_pages(inode, full_page, pcount, pages); @@ -356,7 +358,6 @@ static int zisofs_readpage(struct file *file, struct page *page) flush_dcache_page(pages[i]); if (i == full_page && err) SetPageError(pages[i]); - kunmap(pages[i]); unlock_page(pages[i]); if (i != full_page) put_page(pages[i]); @@ -369,7 +370,7 @@ static int zisofs_readpage(struct file *file, struct page *page) } const struct address_space_operations zisofs_aops = { - .readpage = zisofs_readpage, + .read_folio = zisofs_read_folio, /* No bmap operation supported */ }; |