Commit 0734ffbf authored Sep 18, 2018 by Gao Xiang Committed by Greg Kroah-Hartman Sep 18, 2018

staging: erofs: fix a bug when appling cache strategy



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 <yuchao0@huawei.com>
Signed-off-by: Gao Xiang <gaoxiang25@huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

parent c1ccc867

drivers/staging/erofs/unzip_vle.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -629,7 +629,7 @@ 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;

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