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Message-Id: <20190124190155.686881629@linuxfoundation.org>
Date: Thu, 24 Jan 2019 20:18:56 +0100
From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To: linux-kernel@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
stable@...r.kernel.org, Jaegeuk Kim <jaegeuk@...nel.org>,
Ben Hutchings <ben.hutchings@...ethink.co.uk>
Subject: [PATCH 4.4 007/104] f2fs: give -EINVAL for norecovery and rw mount
4.4-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jaegeuk Kim <jaegeuk@...nel.org>
commit 6781eabba1bdb133eb9125c4acf6704ccbe4df02 upstream.
Once detecting something to recover, f2fs should stop mounting, given norecovery
and rw mount options.
Signed-off-by: Jaegeuk Kim <jaegeuk@...nel.org>
Signed-off-by: Ben Hutchings <ben.hutchings@...ethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
fs/f2fs/f2fs.h | 2 +-
fs/f2fs/recovery.c | 11 +++++++----
fs/f2fs/super.c | 14 ++++++++++++--
3 files changed, 20 insertions(+), 7 deletions(-)
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -1867,7 +1867,7 @@ void build_gc_manager(struct f2fs_sb_inf
/*
* recovery.c
*/
-int recover_fsync_data(struct f2fs_sb_info *);
+int recover_fsync_data(struct f2fs_sb_info *, bool);
bool space_for_roll_forward(struct f2fs_sb_info *);
/*
--- a/fs/f2fs/recovery.c
+++ b/fs/f2fs/recovery.c
@@ -524,12 +524,13 @@ next:
return err;
}
-int recover_fsync_data(struct f2fs_sb_info *sbi)
+int recover_fsync_data(struct f2fs_sb_info *sbi, bool check_only)
{
struct curseg_info *curseg = CURSEG_I(sbi, CURSEG_WARM_NODE);
struct list_head inode_list;
block_t blkaddr;
int err;
+ int ret = 0;
bool need_writecp = false;
fsync_entry_slab = f2fs_kmem_cache_create("f2fs_fsync_inode_entry",
@@ -546,11 +547,13 @@ int recover_fsync_data(struct f2fs_sb_in
/* step #1: find fsynced inode numbers */
err = find_fsync_dnodes(sbi, &inode_list);
- if (err)
+ if (err || list_empty(&inode_list))
goto out;
- if (list_empty(&inode_list))
+ if (check_only) {
+ ret = 1;
goto out;
+ }
need_writecp = true;
@@ -598,5 +601,5 @@ out:
} else {
mutex_unlock(&sbi->cp_mutex);
}
- return err;
+ return ret ? ret: err;
}
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -1457,14 +1457,24 @@ try_onemore:
if (need_fsck)
set_sbi_flag(sbi, SBI_NEED_FSCK);
- err = recover_fsync_data(sbi);
- if (err) {
+ err = recover_fsync_data(sbi, false);
+ if (err < 0) {
need_fsck = true;
f2fs_msg(sb, KERN_ERR,
"Cannot recover all fsync data errno=%ld", err);
goto free_kobj;
}
+ } else {
+ err = recover_fsync_data(sbi, true);
+
+ if (!f2fs_readonly(sb) && err > 0) {
+ err = -EINVAL;
+ f2fs_msg(sb, KERN_ERR,
+ "Need to recover fsync data");
+ goto free_kobj;
+ }
}
+
/* recover_fsync_data() cleared this already */
clear_sbi_flag(sbi, SBI_POR_DOING);
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