linux-kernel - [PATCH 5.18 0927/1095] f2fs: check pinfile in gc_data

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Message-Id: <20220815180507.603347042@linuxfoundation.org>
Date:   Mon, 15 Aug 2022 20:05:26 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Chao Yu <chao.yu@...o.com>,
        Jaegeuk Kim <jaegeuk@...nel.org>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 5.18 0927/1095] f2fs: check pinfile in gc_data_segment() in advance

From: Chao Yu <chao@...nel.org>

[ Upstream commit a22bb5526d7dd627b94a7ee22e5a98c36e39fceb ]

In order to skip migrating section which contains data of pinned
file in advance.

Signed-off-by: Chao Yu <chao.yu@...o.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 fs/f2fs/gc.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index ea5b93b689cd..e83c07144d8f 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1480,6 +1480,13 @@ static int gc_data_segment(struct f2fs_sb_info *sbi, struct f2fs_summary *sum,
 					special_file(inode->i_mode))
 				continue;
 
+			if (is_inode_flag_set(inode, FI_PIN_FILE) &&
+							gc_type == FG_GC) {
+				f2fs_pin_file_control(inode, true);
+				iput(inode);
+				return submitted;
+			}
+
 			if (!f2fs_down_write_trylock(
 				&F2FS_I(inode)->i_gc_rwsem[WRITE])) {
 				iput(inode);
-- 
2.35.1