linux-kernel - [PATCH 1/3] f2fs: check pinfile in gc_data

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Message-Id: <20220320151119.837552-1-chao@kernel.org>
Date:   Sun, 20 Mar 2022 23:11:17 +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>,
        Chao Yu <chao.yu@...o.com>
Subject: [PATCH 1/3] f2fs: check pinfile in gc_data_segment() in advance

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

Signed-off-by: Chao Yu <chao.yu@...o.com>
---
 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);
-- 
2.32.0