diff options
| -rw-r--r-- | fs/btrfs/compression.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/fs/btrfs/compression.c b/fs/btrfs/compression.c index 2600703fab83..17f93fd28f7e 100644 --- a/fs/btrfs/compression.c +++ b/fs/btrfs/compression.c @@ -80,10 +80,15 @@ static int compression_compress_pages(int type, struct list_head *ws, case BTRFS_COMPRESS_NONE: default: /* - * This can't happen, the type is validated several times - * before we get here. As a sane fallback, return what the - * callers will understand as 'no compression happened'. + * This can happen when compression races with remount setting + * it to 'no compress', while caller doesn't call + * inode_need_compress() to check if we really need to + * compress. + * + * Not a big deal, just need to inform caller that we + * haven't allocated any pages yet. */ + *out_pages = 0; return -E2BIG; } } |