diff options
Diffstat (limited to 'fs/squashfs/zlib_wrapper.c')
-rw-r--r-- | fs/squashfs/zlib_wrapper.c | 24 |
1 files changed, 15 insertions, 9 deletions
diff --git a/fs/squashfs/zlib_wrapper.c b/fs/squashfs/zlib_wrapper.c index bb049027d15..8727caba688 100644 --- a/fs/squashfs/zlib_wrapper.c +++ b/fs/squashfs/zlib_wrapper.c @@ -32,6 +32,7 @@ #include "squashfs_fs_sb.h" #include "squashfs.h" #include "decompressor.h" +#include "page_actor.h" static void *zlib_init(struct squashfs_sb_info *dummy, void *buff) { @@ -62,14 +63,14 @@ static void zlib_free(void *strm) static int zlib_uncompress(struct squashfs_sb_info *msblk, void *strm, - void **buffer, struct buffer_head **bh, int b, int offset, int length, - int srclength, int pages) + struct buffer_head **bh, int b, int offset, int length, + struct squashfs_page_actor *output) { - int zlib_err, zlib_init = 0; - int k = 0, page = 0; + int zlib_err, zlib_init = 0, k = 0; z_stream *stream = strm; - stream->avail_out = 0; + stream->avail_out = PAGE_CACHE_SIZE; + stream->next_out = squashfs_first_page(output); stream->avail_in = 0; do { @@ -81,15 +82,18 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void *strm, offset = 0; } - if (stream->avail_out == 0 && page < pages) { - stream->next_out = buffer[page++]; - stream->avail_out = PAGE_CACHE_SIZE; + if (stream->avail_out == 0) { + stream->next_out = squashfs_next_page(output); + if (stream->next_out != NULL) + stream->avail_out = PAGE_CACHE_SIZE; } if (!zlib_init) { zlib_err = zlib_inflateInit(stream); - if (zlib_err != Z_OK) + if (zlib_err != Z_OK) { + squashfs_finish_page(output); goto out; + } zlib_init = 1; } @@ -99,6 +103,8 @@ static int zlib_uncompress(struct squashfs_sb_info *msblk, void *strm, put_bh(bh[k++]); } while (zlib_err == Z_OK); + squashfs_finish_page(output); + if (zlib_err != Z_STREAM_END) goto out; |