linux-kernel - [PATCH] f2fs: fix wrong .available

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Message-ID: <20190805101227.25694-1-yuchao0@huawei.com>
Date:   Mon, 5 Aug 2019 18:12:27 +0800
From:   Chao Yu <yuchao0@...wei.com>
To:     <jaegeuk@...nel.org>
CC:     <linux-f2fs-devel@...ts.sourceforge.net>,
        <linux-kernel@...r.kernel.org>, <chao@...nel.org>,
        Chao Yu <yuchao0@...wei.com>
Subject: [PATCH] f2fs: fix wrong .available_nid calculation

In mkfs, we have counted quota file's node number in cp.valid_node_count,
so we have to avoid wrong substraction of quota node number in
.available_nid calculation.

f2fs_write_check_point_pack()
{
..
	set_cp(valid_node_count, 1 + c.quota_inum + c.lpf_inum);

Fixes: 292c196a3695f2fs ("reserve nid resource for quota sysfile")
Signed-off-by: Chao Yu <yuchao0@...wei.com>
---
 fs/f2fs/node.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/f2fs/node.c b/fs/f2fs/node.c
index a18b2a895771..d9ba1db2d01e 100644
--- a/fs/f2fs/node.c
+++ b/fs/f2fs/node.c
@@ -2964,7 +2964,7 @@ static int init_node_manager(struct f2fs_sb_info *sbi)
 
 	/* not used nids: 0, node, meta, (and root counted as valid node) */
 	nm_i->available_nids = nm_i->max_nid - sbi->total_valid_node_count -
-				sbi->nquota_files - F2FS_RESERVED_NODE_NUM;
+						F2FS_RESERVED_NODE_NUM;
 	nm_i->nid_cnt[FREE_NID] = 0;
 	nm_i->nid_cnt[PREALLOC_NID] = 0;
 	nm_i->nat_cnt = 0;
-- 
2.18.0.rc1