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| author | Huang Jianan <huangjianan@oppo.com> | 2021-03-16 11:15:14 +0800 |
|---|---|---|
| committer | Gao Xiang <hsiangkao@redhat.com> | 2021-03-29 10:18:00 +0800 |
| commit | b4892fa3e7fd69e78a82356de45b90758589cafc (patch) | |
| tree | 0e53b1067d0d70eab2b6545cd7248fc67d1c6202 /fs/erofs | |
| parent | a5e13c6df0e41702d2b2c77c8ad41677ebb065b3 (diff) | |
| download | linux-stable-b4892fa3e7fd69e78a82356de45b90758589cafc.tar.gz linux-stable-b4892fa3e7fd69e78a82356de45b90758589cafc.tar.bz2 linux-stable-b4892fa3e7fd69e78a82356de45b90758589cafc.zip | |
erofs: avoid memory allocation failure during rolling decompression
Currently, err would be treated as io error. Therefore, it'd be
better to ensure memory allocation during rolling decompression
to avoid such io error.
In the long term, we might consider adding another !Uptodate case
for such case.
Link: https://lore.kernel.org/r/20210316031515.90954-1-huangjianan@oppo.com
Reviewed-by: Gao Xiang <hsiangkao@redhat.com>
Reviewed-by: Chao Yu <yuchao0@huawei.com>
Signed-off-by: Huang Jianan <huangjianan@oppo.com>
Signed-off-by: Guo Weichao <guoweichao@oppo.com>
Signed-off-by: Gao Xiang <hsiangkao@redhat.com>
Diffstat (limited to 'fs/erofs')
| -rw-r--r-- | fs/erofs/decompressor.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/fs/erofs/decompressor.c b/fs/erofs/decompressor.c index 1cb1ffd10569..34e73ff76f89 100644 --- a/fs/erofs/decompressor.c +++ b/fs/erofs/decompressor.c @@ -73,9 +73,8 @@ 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); - if (!victim) - return -ENOMEM; + victim = erofs_allocpage(pagepool, + GFP_KERNEL | __GFP_NOFAIL); set_page_private(victim, Z_EROFS_SHORTLIVED_PAGE); } rq->out[i] = victim; |