linux-kernel - [PATCH v2] f2fs: compress: fix to check validity of i_compress

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Message-Id: <20230517034139.12879-1-chao@kernel.org>
Date:   Wed, 17 May 2023 11:41:39 +0800
From:   Chao Yu <chao@...nel.org>
To:     jaegeuk@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Chao Yu <chao@...nel.org>
Subject: [PATCH v2] f2fs: compress: fix to check validity of i_compress_flag field

The last valid compress related field is i_compress_flag, check its
validity instead of i_log_cluster_size.

Signed-off-by: Chao Yu <chao@...nel.org>
---
v2:
- rebase the code.
 fs/f2fs/inode.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/f2fs/inode.c b/fs/f2fs/inode.c
index f8bf75c1eca9..0a1748444329 100644
--- a/fs/f2fs/inode.c
+++ b/fs/f2fs/inode.c
@@ -361,7 +361,7 @@ static bool sanity_check_inode(struct inode *inode, struct page *node_page)
 	if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
 			fi->i_flags & F2FS_COMPR_FL &&
 			F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
-						i_log_cluster_size))
+						i_compress_flag))
 		return sanity_check_compress_inode(inode, ri);
 
 	return true;
@@ -490,7 +490,7 @@ static int do_read_inode(struct inode *inode)
 	if (f2fs_has_extra_attr(inode) && f2fs_sb_has_compression(sbi) &&
 					(fi->i_flags & F2FS_COMPR_FL)) {
 		if (F2FS_FITS_IN_INODE(ri, fi->i_extra_isize,
-					i_log_cluster_size)) {
+					i_compress_flag)) {
 			unsigned short compress_flag;
 
 			atomic_set(&fi->i_compr_blocks,
@@ -728,7 +728,7 @@ void f2fs_update_inode(struct inode *inode, struct page *node_page)
 
 		if (f2fs_sb_has_compression(F2FS_I_SB(inode)) &&
 			F2FS_FITS_IN_INODE(ri, F2FS_I(inode)->i_extra_isize,
-							i_log_cluster_size)) {
+							i_compress_flag)) {
 			unsigned short compress_flag;
 
 			ri->i_compr_blocks =
-- 
2.40.1