From b28f047b28c51d0b9864c34b097bb0b221ea7247 Mon Sep 17 00:00:00 2001 From: Chao Yu Date: Thu, 26 Nov 2020 18:32:09 +0800 Subject: f2fs: compress: support chksum This patch supports to store chksum value with compressed data, and verify the integrality of compressed data while reading the data. The feature can be enabled through specifying mount option 'compress_chksum'. Signed-off-by: Chao Yu Signed-off-by: Jaegeuk Kim --- fs/f2fs/inode.c | 3 +++ 1 file changed, 3 insertions(+) (limited to 'fs/f2fs/inode.c') diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c index 657db2fb6739..349d9cb933ee 100644 --- a/fs/f2fs/inode.c +++ b/fs/f2fs/inode.c @@ -456,6 +456,7 @@ static int do_read_inode(struct inode *inode) le64_to_cpu(ri->i_compr_blocks)); fi->i_compress_algorithm = ri->i_compress_algorithm; fi->i_log_cluster_size = ri->i_log_cluster_size; + fi->i_compress_flag = le16_to_cpu(ri->i_compress_flag); fi->i_cluster_size = 1 << fi->i_log_cluster_size; set_inode_flag(inode, FI_COMPRESSED_FILE); } @@ -634,6 +635,8 @@ void f2fs_update_inode(struct inode *inode, struct page *node_page) &F2FS_I(inode)->i_compr_blocks)); ri->i_compress_algorithm = F2FS_I(inode)->i_compress_algorithm; + ri->i_compress_flag = + cpu_to_le16(F2FS_I(inode)->i_compress_flag); ri->i_log_cluster_size = F2FS_I(inode)->i_log_cluster_size; } -- cgit v1.2.3