[PATCH 1/2] erofs: avoid memory allocation failure during rolling decompression

[Huang Jianan]

It should be better to ensure memory allocation during rolling
decompression to avoid io error.

Signed-off-by: Huang Jianan <huangjia...@oppo.com>
Signed-off-by: Guo Weichao <guoweic...@oppo.com>
---
 fs/erofs/decompressor.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c
index 49347e681a53..fb0fa4e5b9ea 100644
--- a/fs/erofs/decompressor.c
+++ b/fs/erofs/decompressor.c
@@ -86,7 +86,7 @@ static int z_erofs_lz4_prepare_destpages(struct 
z_erofs_decompress_req *rq,
                        victim = availables[--top];
                        get_page(victim);
                } else {
-                       victim = erofs_allocpage(pagepool, GFP_KERNEL);
+                       victim = erofs_allocpage(pagepool, GFP_KERNEL | 
__GFP_NOFAIL);
                        if (!victim)
                                return -ENOMEM;
                        set_page_private(victim, Z_EROFS_SHORTLIVED_PAGE);
-- 
2.25.1