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182741d287
The v0 extent item has been deprecated for a long time, and we don't have any report from the community either. So it's time to remove the v0 extent specific error handling, and just treat them as regular extent tree corruption. This patch would remove the btrfs_print_v0_err() helper, and enhance the involved error handling to treat them just as any extent tree corruption. No reports regarding v0 extents have been seen since the graceful handling was added in 2018. This involves: - btrfs_backref_add_tree_node() This change is a little tricky, the new code is changed to only handle BTRFS_TREE_BLOCK_REF_KEY and BTRFS_SHARED_BLOCK_REF_KEY. But this is safe, as we have rejected any unknown inline refs through btrfs_get_extent_inline_ref_type(). For keyed backrefs, we're safe to skip anything we don't know (that's if it can pass tree-checker in the first place). - btrfs_lookup_extent_info() - lookup_inline_extent_backref() - run_delayed_extent_op() - __btrfs_free_extent() - add_tree_block() Regular error handling of unexpected extent tree item, and abort transaction (if we have a trans handle). - remove_extent_data_ref() It's pretty much the same as the regular rejection of unknown backref key. But for this particular case, we can also remove a BUG_ON(). - extent_data_ref_count() We can remove the BTRFS_EXTENT_REF_V0_KEY BUG_ON(), as it would be rejected by the only caller. - btrfs_print_leaf() Remove the handling for BTRFS_EXTENT_REF_V0_KEY. Signed-off-by: Qu Wenruo <wqu@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
223 lines
7.5 KiB
C
223 lines
7.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef BTRFS_MESSAGES_H
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#define BTRFS_MESSAGES_H
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#include <linux/types.h>
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#include <linux/printk.h>
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#include <linux/bug.h>
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struct btrfs_fs_info;
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/*
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* We want to be able to override this in btrfs-progs.
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*/
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#ifdef __KERNEL__
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static inline __printf(2, 3) __cold
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void btrfs_no_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...)
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{
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}
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#endif
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#ifdef CONFIG_PRINTK
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#define btrfs_printk(fs_info, fmt, args...) \
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_btrfs_printk(fs_info, fmt, ##args)
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__printf(2, 3)
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__cold
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void _btrfs_printk(const struct btrfs_fs_info *fs_info, const char *fmt, ...);
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#else
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#define btrfs_printk(fs_info, fmt, args...) \
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btrfs_no_printk(fs_info, fmt, ##args)
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#endif
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#define btrfs_emerg(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_EMERG fmt, ##args)
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#define btrfs_alert(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_ALERT fmt, ##args)
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#define btrfs_crit(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_CRIT fmt, ##args)
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#define btrfs_err(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_ERR fmt, ##args)
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#define btrfs_warn(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_WARNING fmt, ##args)
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#define btrfs_notice(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_NOTICE fmt, ##args)
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#define btrfs_info(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_INFO fmt, ##args)
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/*
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* Wrappers that use printk_in_rcu
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*/
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#define btrfs_emerg_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_EMERG fmt, ##args)
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#define btrfs_alert_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_ALERT fmt, ##args)
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#define btrfs_crit_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_CRIT fmt, ##args)
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#define btrfs_err_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_ERR fmt, ##args)
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#define btrfs_warn_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_WARNING fmt, ##args)
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#define btrfs_notice_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_NOTICE fmt, ##args)
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#define btrfs_info_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_INFO fmt, ##args)
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/*
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* Wrappers that use a ratelimited printk_in_rcu
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*/
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#define btrfs_emerg_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_EMERG fmt, ##args)
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#define btrfs_alert_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_ALERT fmt, ##args)
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#define btrfs_crit_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_CRIT fmt, ##args)
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#define btrfs_err_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_ERR fmt, ##args)
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#define btrfs_warn_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_WARNING fmt, ##args)
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#define btrfs_notice_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_NOTICE fmt, ##args)
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#define btrfs_info_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_INFO fmt, ##args)
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/*
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* Wrappers that use a ratelimited printk
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*/
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#define btrfs_emerg_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_EMERG fmt, ##args)
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#define btrfs_alert_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_ALERT fmt, ##args)
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#define btrfs_crit_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_CRIT fmt, ##args)
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#define btrfs_err_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_ERR fmt, ##args)
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#define btrfs_warn_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_WARNING fmt, ##args)
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#define btrfs_notice_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_NOTICE fmt, ##args)
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#define btrfs_info_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_INFO fmt, ##args)
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#if defined(CONFIG_DYNAMIC_DEBUG)
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#define btrfs_debug(fs_info, fmt, args...) \
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_dynamic_func_call_no_desc(fmt, btrfs_printk, \
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fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
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_dynamic_func_call_no_desc(fmt, btrfs_printk_in_rcu, \
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fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
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_dynamic_func_call_no_desc(fmt, btrfs_printk_rl_in_rcu, \
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fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl(fs_info, fmt, args...) \
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_dynamic_func_call_no_desc(fmt, btrfs_printk_ratelimited, \
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fs_info, KERN_DEBUG fmt, ##args)
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#elif defined(DEBUG)
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#define btrfs_debug(fs_info, fmt, args...) \
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btrfs_printk(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_printk_rl_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl(fs_info, fmt, args...) \
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btrfs_printk_ratelimited(fs_info, KERN_DEBUG fmt, ##args)
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#else
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#define btrfs_debug(fs_info, fmt, args...) \
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btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_in_rcu(fs_info, fmt, args...) \
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btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl_in_rcu(fs_info, fmt, args...) \
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btrfs_no_printk_in_rcu(fs_info, KERN_DEBUG fmt, ##args)
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#define btrfs_debug_rl(fs_info, fmt, args...) \
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btrfs_no_printk(fs_info, KERN_DEBUG fmt, ##args)
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#endif
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#define btrfs_printk_in_rcu(fs_info, fmt, args...) \
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do { \
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rcu_read_lock(); \
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btrfs_printk(fs_info, fmt, ##args); \
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rcu_read_unlock(); \
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} while (0)
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#define btrfs_no_printk_in_rcu(fs_info, fmt, args...) \
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do { \
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rcu_read_lock(); \
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btrfs_no_printk(fs_info, fmt, ##args); \
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rcu_read_unlock(); \
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} while (0)
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#define btrfs_printk_ratelimited(fs_info, fmt, args...) \
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do { \
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static DEFINE_RATELIMIT_STATE(_rs, \
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DEFAULT_RATELIMIT_INTERVAL, \
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DEFAULT_RATELIMIT_BURST); \
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if (__ratelimit(&_rs)) \
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btrfs_printk(fs_info, fmt, ##args); \
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} while (0)
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#define btrfs_printk_rl_in_rcu(fs_info, fmt, args...) \
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do { \
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rcu_read_lock(); \
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btrfs_printk_ratelimited(fs_info, fmt, ##args); \
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rcu_read_unlock(); \
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} while (0)
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#ifdef CONFIG_BTRFS_ASSERT
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#define btrfs_assertfail(expr, file, line) ({ \
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pr_err("assertion failed: %s, in %s:%d\n", (expr), (file), (line)); \
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BUG(); \
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})
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#define ASSERT(expr) \
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(likely(expr) ? (void)0 : btrfs_assertfail(#expr, __FILE__, __LINE__))
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#else
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#define ASSERT(expr) (void)(expr)
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#endif
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__printf(5, 6)
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__cold
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void __btrfs_handle_fs_error(struct btrfs_fs_info *fs_info, const char *function,
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unsigned int line, int errno, const char *fmt, ...);
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const char * __attribute_const__ btrfs_decode_error(int errno);
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#define btrfs_handle_fs_error(fs_info, errno, fmt, args...) \
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__btrfs_handle_fs_error((fs_info), __func__, __LINE__, \
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(errno), fmt, ##args)
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__printf(5, 6)
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__cold
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void __btrfs_panic(struct btrfs_fs_info *fs_info, const char *function,
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unsigned int line, int errno, const char *fmt, ...);
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/*
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* If BTRFS_MOUNT_PANIC_ON_FATAL_ERROR is in mount_opt, __btrfs_panic
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* will panic(). Otherwise we BUG() here.
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*/
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#define btrfs_panic(fs_info, errno, fmt, args...) \
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do { \
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__btrfs_panic(fs_info, __func__, __LINE__, errno, fmt, ##args); \
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BUG(); \
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} while (0)
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#if BITS_PER_LONG == 32
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#define BTRFS_32BIT_MAX_FILE_SIZE (((u64)ULONG_MAX + 1) << PAGE_SHIFT)
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/*
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* The warning threshold is 5/8th of the MAX_LFS_FILESIZE that limits the logical
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* addresses of extents.
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*
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* For 4K page size it's about 10T, for 64K it's 160T.
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*/
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#define BTRFS_32BIT_EARLY_WARN_THRESHOLD (BTRFS_32BIT_MAX_FILE_SIZE * 5 / 8)
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void btrfs_warn_32bit_limit(struct btrfs_fs_info *fs_info);
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void btrfs_err_32bit_limit(struct btrfs_fs_info *fs_info);
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#endif
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#endif
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