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authorFengnan Chang <changfengnan@vivo.com>2021-06-22 19:50:59 +0800
committerJaegeuk Kim <jaegeuk@kernel.org>2021-08-02 11:24:25 -0700
commit7eab7a6968278c735b1ca6387056a408f7960265 (patch)
tree8e3136fa77f7ab0d9afbb7f07ea775c279115e21 /fs/f2fs/data.c
parent2eeb0dce728a7eac3e4dfe355d98af40d61f7a26 (diff)
f2fs: compress: remove unneeded read when rewrite whole cluster
when we overwrite the whole page in cluster, we don't need read original data before write, because after write_end(), writepages() can help to load left data in that cluster. Signed-off-by: Fengnan Chang <changfengnan@vivo.com> Signed-off-by: Chao Yu <yuchao0@huawei.com> Acked-by: Chao Yu <yuchao0@huawei.com> Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Diffstat (limited to 'fs/f2fs/data.c')
-rw-r--r--fs/f2fs/data.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
index 28ad1f533c2a..d7f9d66577f5 100644
--- a/fs/f2fs/data.c
+++ b/fs/f2fs/data.c
@@ -3329,6 +3329,9 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
*fsdata = NULL;
+ if (len == PAGE_SIZE)
+ goto repeat;
+
ret = f2fs_prepare_compress_overwrite(inode, pagep,
index, fsdata);
if (ret < 0) {