From 7b7cd1158649be7a6488bcecb0009ea6e8d54f98 Mon Sep 17 00:00:00 2001
From: Chao Yu <chao@kernel.org>
Date: Sun, 20 Mar 2022 23:11:17 +0800
Subject: [PATCH] BACKPORT: f2fs: check pinfile in gc_data_segment() in advance

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

Bug: 278486610
Signed-off-by: Chao Yu <chao.yu@oppo.com>
Signed-off-by: Jaegeuk Kim <jaegeuk@kernel.org>
Signed-off-by: Chao Yu <chao@kernel.org>
(cherry picked from commit 3c4b4e198e7723f00c0f3a078144173fd591d6d8)
Change-Id: Ia5d0fa83376afd60cb9dec1ef2e377fedfd905f5
---
 fs/f2fs/gc.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
index 63f7a7238442..00a69b555daf 100644
--- a/fs/f2fs/gc.c
+++ b/fs/f2fs/gc.c
@@ -1476,6 +1476,13 @@ next_step:
 			if (IS_ERR(inode) || is_bad_inode(inode))
 				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);