Message-Id: <20221109110148.3674340-1-shengyong@oppo.com>
Date:   Wed,  9 Nov 2022 19:01:48 +0800
From:   Sheng Yong <shengyong@...o.com>
To:     jaegeuk@...nel.org, chao@...nel.org
Cc:     linux-f2fs-devel@...ts.sourceforge.net,
        linux-kernel@...r.kernel.org, Sheng Yong <shengyong@...o.com>
Subject: [PATCH] f2fs: fix to enable compress for newly created file if extension matches

If compress_extension is set, and a newly created file matches the
extension, the file could be marked as compression file. However,
if inline_data is also enabled, there is no chance to check its
extension since f2fs_should_compress() always returns false.

So if a new file is created (its inode has I_NEW flag and must have
no pin/atomic/swap flag), instead of calling f2fs_should_compress(),
checking its file type is enough here.

Signed-off-by: Sheng Yong <shengyong@...o.com>
---
 fs/f2fs/namei.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/f2fs/namei.c b/fs/f2fs/namei.c
index e104409c3a0e5..99dbd051ae0ba 100644
--- a/fs/f2fs/namei.c
+++ b/fs/f2fs/namei.c
@@ -295,9 +295,14 @@ static void set_compress_inode(struct f2fs_sb_info *sbi, struct inode *inode,

        if (!f2fs_sb_has_compression(sbi) ||
                        F2FS_I(inode)->i_flags & F2FS_NOCOMP_FL ||
-                       !f2fs_may_compress(inode) ||
                        (!ext_cnt && !noext_cnt))
                return;
+       if (inode->i_state & I_NEW) {
+               if (!S_ISREG(inode->i_mode))
+                       return;
+       } else if (!f2fs_may_compress(inode)) {
+               return;
+       }

        f2fs_down_read(&sbi->sb_lock);

--
2.25.1

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