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authorChao Yu <yuchao0@huawei.com>2020-07-29 21:21:35 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2020-08-03 10:32:51 -0700
commita86d27dd3dbed4d870c6582b8d4bf1fd0f653914 (patch)
tree4fb7dfd07e5c41ba2b7f723ad915e21a81e7793b /fs/f2fs
parent8fa41016f098b5ea5b48ffc6042ecaf0282b809b (diff)
f2fs: compress: add sanity check during compressed cluster read
In f2fs_read_multi_pages(), we don't have to check cluster's type again, since overwrite or partial truncation need page lock in cluster which has already been held by reader, so cluster's type is stable, let's change check condition to sanity check. Signed-off-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs')
-rw-r--r--fs/f2fs/data.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index bc89bc987513..c1b676be67b9 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -2170,9 +2170,7 @@ int f2fs_read_multi_pages(struct compress_ctx *cc, struct bio **bio_ret,
if (ret)
goto out;
- /* cluster was overwritten as normal cluster */
- if (dn.data_blkaddr != COMPRESS_ADDR)
- goto out;
+ f2fs_bug_on(sbi, dn.data_blkaddr != COMPRESS_ADDR);
for (i = 1; i < cc->cluster_size; i++) {
block_t blkaddr;