4.19-stable review patch. If anyone has any objections, please let me know.
------------------ From: Gao Xiang <[email protected]> commit 0734ffbf574ee813b20899caef2fe0ed502bb783 upstream. As described in Kconfig, the last compressed pack should be cached for further reading for either `EROFS_FS_ZIP_CACHE_UNIPOLAR' or `EROFS_FS_ZIP_CACHE_BIPOLAR' by design. However, there is a bug in z_erofs_do_read_page, it will switch `initial' to `false' at the very beginning before it decides to cache the last compressed pack. caching strategy should work properly after appling this patch. Reviewed-by: Chao Yu <[email protected]> Signed-off-by: Gao Xiang <[email protected]> Signed-off-by: Greg Kroah-Hartman <[email protected]> --- drivers/staging/erofs/unzip_vle.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/staging/erofs/unzip_vle.c +++ b/drivers/staging/erofs/unzip_vle.c @@ -624,7 +624,7 @@ repeat: /* go ahead the next map_blocks */ debugln("%s: [out-of-range] pos %llu", __func__, offset + cur); - if (!z_erofs_vle_work_iter_end(builder)) + if (z_erofs_vle_work_iter_end(builder)) fe->initial = false; map->m_la = offset + cur;
