linux-f2fs-devel.lists.sourceforge.net archive mirror
 help / color / mirror / Atom feed
* [f2fs-dev] [PATCH] f2fs-tools: rebuild the quota inode if it is corrupted
@ 2021-07-14  2:00 Wang Xiaojun
  2021-07-17  8:16 ` Chao Yu
  0 siblings, 1 reply; 3+ messages in thread
From: Wang Xiaojun @ 2021-07-14  2:00 UTC (permalink / raw)
  To: chao, jaegeuk; +Cc: linux-f2fs-devel

If the following process returns an error,
the quota inode, not the quota file, is damaged.
(fsck_chk_quota_node-->fsck_chk_node_blk-->sanity_check_nid)
The fsck does not have a process to rebuild the quota inode.

Because sanity_check_nid is not passed, fsck->nat_area_bitmap
can not be cleared, and then the NAT of quota will be nullify
during fix_nat_entries.

During the next fsck check, the quota inode check fails
because the address of the quota inode changes to 0.
In addition, in fsck_chk_quota_files-->f2fs_filesize_update,
data is written to address 0.

Therefore, when the quota inode is corrupted, we need to rebuild it.

Signed-off-by: Wang Xiaojun <wangxiaojun11@huawei.com>
---
 fsck/fsck.c        |  2 ++
 fsck/fsck.h        |  1 +
 fsck/node.c        | 38 ++++++++++++++++++++++++++++++++++++++
 include/f2fs_fs.h  | 40 ++++++++++++++++++++++++++++++++++++++++
 mkfs/f2fs_format.c | 31 +------------------------------
 5 files changed, 82 insertions(+), 30 deletions(-)

diff --git a/fsck/fsck.c b/fsck/fsck.c
index 6ca85f0..af6d332 100644
--- a/fsck/fsck.c
+++ b/fsck/fsck.c
@@ -1899,6 +1899,8 @@ int fsck_chk_quota_node(struct f2fs_sb_info *sbi)
 			ASSERT_MSG("wrong quota inode, qtype [%d] ino [0x%x]",
 								qtype, ino);
 			qf_szchk_type[qtype] = QF_SZCHK_ERR;
+			if (c.fix_on)
+				f2fs_rebuild_qf_inode(sbi, qtype);
 		}
 	}
 	cur_qtype = -1;
diff --git a/fsck/fsck.h b/fsck/fsck.h
index d79afef..67390f0 100644
--- a/fsck/fsck.h
+++ b/fsck/fsck.h
@@ -286,6 +286,7 @@ void f2fs_alloc_nid(struct f2fs_sb_info *, nid_t *);
 void set_data_blkaddr(struct dnode_of_data *);
 block_t new_node_block(struct f2fs_sb_info *,
 					struct dnode_of_data *, unsigned int);
+int f2fs_rebuild_qf_inode(struct f2fs_sb_info *sbi, int qtype);
 
 /* segment.c */
 struct quota_file;
diff --git a/fsck/node.c b/fsck/node.c
index c7988cb..d8d01db 100644
--- a/fsck/node.c
+++ b/fsck/node.c
@@ -40,6 +40,44 @@ void f2fs_release_nid(struct f2fs_sb_info *sbi, nid_t nid)
 	f2fs_clear_bit(nid, nm_i->nid_bitmap);
 }
 
+int f2fs_rebuild_qf_inode(struct f2fs_sb_info *sbi, int qtype)
+{
+	struct f2fs_node *raw_node = NULL;
+	struct f2fs_super_block *sb = F2FS_RAW_SUPER(sbi);
+	struct f2fs_summary sum;
+	struct node_info ni;
+	nid_t ino = QUOTA_INO(sb, qtype);
+	block_t blkaddr = NULL_ADDR;
+	int ret = 0;
+
+	raw_node = calloc(F2FS_BLKSIZE, 1);
+	if (raw_node == NULL) {
+		MSG(1, "\tError: Calloc Failed for raw_node!!!\n");
+		return -ENOMEM;
+	}
+	f2fs_init_qf_inode(sb, raw_node, qtype);
+	raw_node->footer.cp_ver = F2FS_CKPT(sbi)->checkpoint_ver;
+
+	get_node_info(sbi, ino, &ni);
+	set_summary(&sum, ino, 0, ni.version);
+	ret = reserve_new_block(sbi, &blkaddr, &sum, CURSEG_HOT_NODE, 1);
+	if (ret)
+		goto err_out;
+
+	ret = write_inode(raw_node, blkaddr);
+	if (ret < 0) {
+		MSG(1, "\tError: While rebuilding the quota inode to disk!\n");
+		goto err_out;
+	}
+	update_nat_blkaddr(sbi, ino, ino, blkaddr);
+
+	f2fs_clear_bit(ino, F2FS_FSCK(sbi)->nat_area_bitmap);
+	f2fs_set_bit(ino, NM_I(sbi)->nid_bitmap);
+err_out:
+	free(raw_node);
+	return ret;
+}
+
 void set_data_blkaddr(struct dnode_of_data *dn)
 {
 	__le32 *addr_array;
diff --git a/include/f2fs_fs.h b/include/f2fs_fs.h
index 45f7257..87bbd3c 100644
--- a/include/f2fs_fs.h
+++ b/include/f2fs_fs.h
@@ -20,6 +20,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <time.h>
 #ifdef HAVE_CONFIG_H
 #include <config.h>
 #endif
@@ -1554,6 +1555,45 @@ static inline void show_version(const char *prog)
 #endif
 }
 
+static inline void f2fs_init_qf_inode(struct f2fs_super_block *sb,
+		struct f2fs_node *raw_node, int qtype)
+{
+	raw_node->footer.nid = sb->qf_ino[qtype];
+	raw_node->footer.ino = sb->qf_ino[qtype];
+	raw_node->footer.cp_ver = cpu_to_le64(1);
+	raw_node->i.i_mode = cpu_to_le16(0x8180);
+	raw_node->i.i_links = cpu_to_le32(1);
+	raw_node->i.i_uid = cpu_to_le32(c.root_uid);
+	raw_node->i.i_gid = cpu_to_le32(c.root_gid);
+
+	raw_node->i.i_size = cpu_to_le64(1024 * 6); /* Hard coded */
+	raw_node->i.i_blocks = cpu_to_le64(1);
+
+	raw_node->i.i_atime = cpu_to_le32(time(NULL));
+	raw_node->i.i_atime_nsec = 0;
+	raw_node->i.i_ctime = cpu_to_le32(time(NULL));
+	raw_node->i.i_ctime_nsec = 0;
+	raw_node->i.i_mtime = cpu_to_le32(time(NULL));
+	raw_node->i.i_mtime_nsec = 0;
+	raw_node->i.i_generation = 0;
+	raw_node->i.i_xattr_nid = 0;
+	raw_node->i.i_flags = FS_IMMUTABLE_FL;
+	raw_node->i.i_current_depth = cpu_to_le32(0);
+	raw_node->i.i_dir_level = DEF_DIR_LEVEL;
+
+	if (c.feature & cpu_to_le32(F2FS_FEATURE_EXTRA_ATTR)) {
+		raw_node->i.i_inline = F2FS_EXTRA_ATTR;
+		raw_node->i.i_extra_isize = cpu_to_le16(calc_extra_isize());
+	}
+
+	if (c.feature & cpu_to_le32(F2FS_FEATURE_PRJQUOTA))
+		raw_node->i.i_projid = cpu_to_le32(F2FS_DEF_PROJID);
+
+	raw_node->i.i_ext.fofs = 0;
+	raw_node->i.i_ext.blk_addr = 0;
+	raw_node->i.i_ext.len = 0;
+}
+
 struct feature {
 	char *name;
 	u32  mask;
diff --git a/mkfs/f2fs_format.c b/mkfs/f2fs_format.c
index 2132852..f8d0bce 100644
--- a/mkfs/f2fs_format.c
+++ b/mkfs/f2fs_format.c
@@ -1373,42 +1373,16 @@ static int f2fs_write_qf_inode(int qtype)
 		MSG(1, "\tError: Calloc Failed for raw_node!!!\n");
 		return -1;
 	}
+	f2fs_init_qf_inode(sb, raw_node, qtype);
 
-	raw_node->footer.nid = sb->qf_ino[qtype];
-	raw_node->footer.ino = sb->qf_ino[qtype];
-	raw_node->footer.cp_ver = cpu_to_le64(1);
 	raw_node->footer.next_blkaddr = cpu_to_le32(
 			get_sb(main_blkaddr) +
 			c.cur_seg[CURSEG_HOT_NODE] *
 			c.blks_per_seg + 1 + qtype + 1);
-
-	raw_node->i.i_mode = cpu_to_le16(0x8180);
-	raw_node->i.i_links = cpu_to_le32(1);
-	raw_node->i.i_uid = cpu_to_le32(c.root_uid);
-	raw_node->i.i_gid = cpu_to_le32(c.root_gid);
-
-	raw_node->i.i_size = cpu_to_le64(1024 * 6); /* Hard coded */
 	raw_node->i.i_blocks = cpu_to_le64(1 + QUOTA_DATA(qtype));
-
 	raw_node->i.i_atime = cpu_to_le32(mkfs_time);
-	raw_node->i.i_atime_nsec = 0;
 	raw_node->i.i_ctime = cpu_to_le32(mkfs_time);
-	raw_node->i.i_ctime_nsec = 0;
 	raw_node->i.i_mtime = cpu_to_le32(mkfs_time);
-	raw_node->i.i_mtime_nsec = 0;
-	raw_node->i.i_generation = 0;
-	raw_node->i.i_xattr_nid = 0;
-	raw_node->i.i_flags = FS_IMMUTABLE_FL;
-	raw_node->i.i_current_depth = cpu_to_le32(0);
-	raw_node->i.i_dir_level = DEF_DIR_LEVEL;
-
-	if (c.feature & cpu_to_le32(F2FS_FEATURE_EXTRA_ATTR)) {
-		raw_node->i.i_inline = F2FS_EXTRA_ATTR;
-		raw_node->i.i_extra_isize = cpu_to_le16(calc_extra_isize());
-	}
-
-	if (c.feature & cpu_to_le32(F2FS_FEATURE_PRJQUOTA))
-		raw_node->i.i_projid = cpu_to_le32(F2FS_DEF_PROJID);
 
 	data_blk_nor = get_sb(main_blkaddr) +
 		c.cur_seg[CURSEG_HOT_DATA] * c.blks_per_seg + 1;
@@ -1434,9 +1408,6 @@ static int f2fs_write_qf_inode(int qtype)
 	for (i = 0; i < QUOTA_DATA(qtype); i++)
 		raw_node->i.i_addr[get_extra_isize(raw_node) + i] =
 					cpu_to_le32(data_blk_nor + i);
-	raw_node->i.i_ext.fofs = 0;
-	raw_node->i.i_ext.blk_addr = 0;
-	raw_node->i.i_ext.len = 0;
 
 	main_area_node_seg_blk_offset = get_sb(main_blkaddr);
 	main_area_node_seg_blk_offset += c.cur_seg[CURSEG_HOT_NODE] *
-- 
2.25.4



_______________________________________________
Linux-f2fs-devel mailing list
Linux-f2fs-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/linux-f2fs-devel

^ permalink raw reply related	[flat|nested] 3+ messages in thread

end of thread, other threads:[~2021-07-19  1:43 UTC | newest]

Thread overview: 3+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2021-07-14  2:00 [f2fs-dev] [PATCH] f2fs-tools: rebuild the quota inode if it is corrupted Wang Xiaojun
2021-07-17  8:16 ` Chao Yu
2021-07-19  1:43   ` wangxiaojun (N)

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).