mirror of
https://github.com/kdave/btrfs-progs
synced 2024-12-16 11:25:31 +00:00
b9ea7c1b23
There are at least two bug reports of kernel tree-checker complaining about invalid inode generation. All offending inodes seem to be caused by old kernel around 2014, with inode generation overflow. So add such check and repair ability to lowmem mode check first. This involves: - Calculate the inode generation upper limit Unlike the lowmem mode context, we don't have anyway to determine if this inode belongs to log tree. So we use super_generation + 1 as upper limit, just like what we did in kernel tree checker. - Check if the inode generation is larger than the upper limit - Repair by resetting inode generation to current transaction generation The difference is, in original mode, we have a common trans handle for all repair and reset path for each repair. Reported-by: Charles Wright <charles.v.wright@gmail.com> Reviewed-by: Nikolay Borisov <nborisov@suse.com> Tested-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Qu Wenruo <wqu@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
310 lines
6.8 KiB
C
310 lines
6.8 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public
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* License v2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public
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* License along with this program; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 021110-1307, USA.
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*/
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/*
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* Defines and function declarations for original mode check.
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*/
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#ifndef __BTRFS_CHECK_MODE_ORIGINAL_H__
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#define __BTRFS_CHECK_MODE_ORIGINAL_H__
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#include "common/rbtree-utils.h"
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struct extent_backref {
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struct rb_node node;
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unsigned int is_data:1;
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unsigned int found_extent_tree:1;
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unsigned int full_backref:1;
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unsigned int found_ref:1;
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unsigned int broken:1;
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};
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static inline struct extent_backref* rb_node_to_extent_backref(struct rb_node *node)
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{
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return rb_entry(node, struct extent_backref, node);
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}
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struct data_backref {
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struct extent_backref node;
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union {
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u64 parent;
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u64 root;
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};
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u64 owner;
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u64 offset;
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u64 disk_bytenr;
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u64 bytes;
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u64 ram_bytes;
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u32 num_refs;
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u32 found_ref;
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};
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static inline struct data_backref* to_data_backref(struct extent_backref *back)
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{
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return container_of(back, struct data_backref, node);
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}
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struct tree_backref {
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struct extent_backref node;
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union {
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u64 parent;
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u64 root;
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};
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};
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static inline struct tree_backref* to_tree_backref(struct extent_backref *back)
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{
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return container_of(back, struct tree_backref, node);
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}
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/* Explicit initialization for extent_record::flag_block_full_backref */
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enum { FLAG_UNSET = 2 };
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struct extent_record {
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struct list_head backrefs;
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struct list_head dups;
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struct rb_root backref_tree;
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struct list_head list;
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struct cache_extent cache;
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struct btrfs_disk_key parent_key;
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u64 start;
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u64 max_size;
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u64 nr;
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u64 refs;
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u64 extent_item_refs;
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u64 generation;
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u64 parent_generation;
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u64 info_objectid;
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u32 num_duplicates;
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u8 info_level;
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unsigned int flag_block_full_backref:2;
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unsigned int found_rec:1;
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unsigned int content_checked:1;
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unsigned int owner_ref_checked:1;
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unsigned int is_root:1;
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unsigned int metadata:1;
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unsigned int bad_full_backref:1;
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unsigned int crossing_stripes:1;
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unsigned int wrong_chunk_type:1;
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};
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static inline struct extent_record* to_extent_record(struct list_head *entry)
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{
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return container_of(entry, struct extent_record, list);
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}
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struct inode_backref {
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struct list_head list;
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unsigned int found_dir_item:1;
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unsigned int found_dir_index:1;
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unsigned int found_inode_ref:1;
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u8 filetype;
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u8 ref_type;
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int errors;
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u64 dir;
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u64 index;
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u16 namelen;
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char name[0];
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};
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static inline struct inode_backref* to_inode_backref(struct list_head *entry)
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{
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return list_entry(entry, struct inode_backref, list);
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}
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struct root_item_record {
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struct list_head list;
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u64 objectid;
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u64 bytenr;
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u64 last_snapshot;
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u8 level;
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u8 drop_level;
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struct btrfs_key drop_key;
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};
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#define REF_ERR_NO_DIR_ITEM (1 << 0)
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#define REF_ERR_NO_DIR_INDEX (1 << 1)
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#define REF_ERR_NO_INODE_REF (1 << 2)
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#define REF_ERR_DUP_DIR_ITEM (1 << 3)
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#define REF_ERR_DUP_DIR_INDEX (1 << 4)
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#define REF_ERR_DUP_INODE_REF (1 << 5)
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#define REF_ERR_INDEX_UNMATCH (1 << 6)
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#define REF_ERR_FILETYPE_UNMATCH (1 << 7)
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#define REF_ERR_NAME_TOO_LONG (1 << 8) // 100
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#define REF_ERR_NO_ROOT_REF (1 << 9)
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#define REF_ERR_NO_ROOT_BACKREF (1 << 10)
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#define REF_ERR_DUP_ROOT_REF (1 << 11)
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#define REF_ERR_DUP_ROOT_BACKREF (1 << 12)
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struct file_extent_hole {
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struct rb_node node;
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u64 start;
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u64 len;
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};
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struct unaligned_extent_rec_t {
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struct list_head list;
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u64 objectid;
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u64 owner;
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u64 offset;
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u64 bytenr;
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};
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#define I_ERR_NO_INODE_ITEM (1 << 0)
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#define I_ERR_NO_ORPHAN_ITEM (1 << 1)
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#define I_ERR_DUP_INODE_ITEM (1 << 2)
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#define I_ERR_DUP_DIR_INDEX (1 << 3)
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#define I_ERR_ODD_DIR_ITEM (1 << 4)
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#define I_ERR_ODD_FILE_EXTENT (1 << 5)
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#define I_ERR_BAD_FILE_EXTENT (1 << 6)
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#define I_ERR_FILE_EXTENT_OVERLAP (1 << 7)
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#define I_ERR_FILE_EXTENT_DISCOUNT (1 << 8) // 100
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#define I_ERR_DIR_ISIZE_WRONG (1 << 9)
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#define I_ERR_FILE_NBYTES_WRONG (1 << 10) // 400
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#define I_ERR_ODD_CSUM_ITEM (1 << 11)
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#define I_ERR_SOME_CSUM_MISSING (1 << 12)
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#define I_ERR_LINK_COUNT_WRONG (1 << 13)
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#define I_ERR_UNALIGNED_EXTENT_REC (1 << 14)
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#define I_ERR_FILE_EXTENT_TOO_LARGE (1 << 15)
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#define I_ERR_ODD_INODE_FLAGS (1 << 16)
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#define I_ERR_INLINE_RAM_BYTES_WRONG (1 << 17)
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#define I_ERR_MISMATCH_DIR_HASH (1 << 18)
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#define I_ERR_INVALID_IMODE (1 << 19)
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#define I_ERR_INVALID_GEN (1 << 20)
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struct inode_record {
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struct list_head backrefs;
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unsigned int checked:1;
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unsigned int merging:1;
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unsigned int found_inode_item:1;
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unsigned int found_dir_item:1;
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unsigned int found_file_extent:1;
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unsigned int found_csum_item:1;
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unsigned int some_csum_missing:1;
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unsigned int nodatasum:1;
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int errors;
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struct list_head unaligned_extent_recs;
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u64 ino;
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u32 nlink;
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u32 imode;
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u64 isize;
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u64 nbytes;
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u32 found_link;
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u64 found_size;
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u64 extent_start;
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u64 extent_end;
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struct rb_root holes;
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struct list_head mismatch_dir_hash;
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u32 refs;
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};
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/*
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* To record one dir_item with mismatch hash.
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*
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* Since the hash is incorrect, we must record the hash (key).
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*/
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struct mismatch_dir_hash_record {
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struct list_head list;
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struct btrfs_key key;
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int namelen;
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/* namebuf follows here */
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};
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struct root_backref {
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struct list_head list;
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unsigned int found_dir_item:1;
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unsigned int found_dir_index:1;
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unsigned int found_back_ref:1;
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unsigned int found_forward_ref:1;
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unsigned int reachable:1;
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int errors;
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u64 ref_root;
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u64 dir;
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u64 index;
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u16 namelen;
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char name[0];
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};
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static inline struct root_backref* to_root_backref(struct list_head *entry)
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{
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return list_entry(entry, struct root_backref, list);
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}
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struct root_record {
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struct list_head backrefs;
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struct cache_extent cache;
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unsigned int found_root_item:1;
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u64 objectid;
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u32 found_ref;
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};
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struct ptr_node {
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struct cache_extent cache;
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void *data;
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};
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struct shared_node {
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struct cache_extent cache;
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struct cache_tree root_cache;
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struct cache_tree inode_cache;
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struct inode_record *current;
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u32 refs;
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};
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struct block_info {
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u64 start;
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u32 size;
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};
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struct walk_control {
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struct cache_tree shared;
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struct shared_node *nodes[BTRFS_MAX_LEVEL];
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int active_node;
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int root_level;
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};
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struct bad_item {
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struct btrfs_key key;
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u64 root_id;
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struct list_head list;
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};
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struct extent_entry {
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u64 bytenr;
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u64 bytes;
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int count;
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int broken;
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struct list_head list;
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};
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struct root_item_info {
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/* level of the root */
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u8 level;
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/* number of nodes at this level, must be 1 for a root */
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int node_count;
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u64 bytenr;
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u64 gen;
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struct cache_extent cache_extent;
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};
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#endif
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