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Message-ID: <6f01fe1b-d580-4a2a-adc5-7eb3baebeb7a@kernel.org>
Date: Mon, 19 Feb 2024 11:46:01 +0800
From: Chao Yu <chao@...nel.org>
To: Jaegeuk Kim <jaegeuk@...nel.org>, Zhiguo Niu <zhiguo.niu@...soc.com>
Cc: linux-f2fs-devel@...ts.sourceforge.net, linux-kernel@...r.kernel.org,
niuzhiguo84@...il.com, ke.wang@...soc.com, hongyu.jin@...soc.com
Subject: Re: [PATCH v7] f2fs: unify the error handling of
f2fs_is_valid_blkaddr
On 2024/2/6 11:32, Jaegeuk Kim wrote:
> On 02/05, Chao Yu wrote:
>> On 2024/2/5 11:30, Zhiguo Niu wrote:
>>> There are some cases of f2fs_is_valid_blkaddr not handled as
>>> ERROR_INVALID_BLKADDR,so unify the error handling about all of
>>> f2fs_is_valid_blkaddr.
>>>
>>> Signed-off-by: Zhiguo Niu <zhiguo.niu@...soc.com>
>>> Signed-off-by: Chao Yu <chao@...nel.org>
>>> ---
>>> changes of v7: update patch according to sync with Chao
>>> -restore some code to original
>>> -modify err handle of __is_bitmap_valid for covering all cases
>>> changes of v6: improve patch according to Chao's suggestions
>>> -restore dump_stack to original position
>>> -adjuest code sequence of __is_bitmap_check_valid
>>> changes of v5: improve patch according to Jaegeuk's suggestiongs
>>> -restore return value of some f2fs_is_valid_blkaddr error case to original
>>> -move cp_err checking to outermost for unified processing
>>> -return true directly for case (type=DATA_GENERIC_ENHANCE_READ) in
>>> __is_bitmap_valid to avoid meaningless flow
>>> -rename __is_bitmap_valid to __is_bitmap_check_valid for avoiding ambiguity
>>> and handling its return value in the caller uniformly, also cooperate
>>> switch checking true to false for error case of
>>> f2fs_is_valid_blkaddr(type=DATA_GENERIC_ENHANCE_UPDATE) in do_recover_data
>>> for more readable
>>> changes of v4: update according to the latest code
>>> changes of v3:
>>> -rebase patch to dev-test
>>> -correct return value for some f2fs_is_valid_blkaddr error case
>>> changes of v2: improve patch according Chao's suggestions.
>>> ---
>>> ---
>>> fs/f2fs/checkpoint.c | 33 ++++++++++++++++++---------------
>>> fs/f2fs/data.c | 22 +++-------------------
>>> fs/f2fs/extent_cache.c | 5 +----
>>> fs/f2fs/file.c | 16 +++-------------
>>> fs/f2fs/gc.c | 2 --
>>> fs/f2fs/recovery.c | 4 ----
>>> fs/f2fs/segment.c | 2 --
>>> 7 files changed, 25 insertions(+), 59 deletions(-)
>>>
>>> diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
>>> index b85820e..3335619 100644
>>> --- a/fs/f2fs/checkpoint.c
>>> +++ b/fs/f2fs/checkpoint.c
>>> @@ -154,46 +154,43 @@ static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr,
>>> if (unlikely(f2fs_cp_error(sbi)))
>>> return exist;
>>> - if (exist && type == DATA_GENERIC_ENHANCE_UPDATE) {
>>> - f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d",
>>> - blkaddr, exist);
>>> - set_sbi_flag(sbi, SBI_NEED_FSCK);
>>> - return exist;
>>> - }
>>> -
>>> - if (!exist && type == DATA_GENERIC_ENHANCE) {
>>> + if ((exist && type == DATA_GENERIC_ENHANCE_UPDATE) ||
>>> + (!exist && type == DATA_GENERIC_ENHANCE)) {
>>> f2fs_err(sbi, "Inconsistent error blkaddr:%u, sit bitmap:%d",
>>> blkaddr, exist);
>>> set_sbi_flag(sbi, SBI_NEED_FSCK);
>>> dump_stack();
>>> }
>>> +
>>
>> No need to add one blank line.
>>
>> Otherwise, it looks good to me.
>>
>> Reviewed-by: Chao Yu <chao@...nel.org>
>>
>> Thanks,
>>
>>> return exist;
>>> }
>>> static bool __f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
>>> block_t blkaddr, int type)
>>> {
>>> + bool valid = false;
>>> +
>>> switch (type) {
>>> case META_NAT:
>>> break;
>>> case META_SIT:
>>> if (unlikely(blkaddr >= SIT_BLK_CNT(sbi)))
>>> - return false;
>>> + goto err;
>>> break;
>>> case META_SSA:
>>> if (unlikely(blkaddr >= MAIN_BLKADDR(sbi) ||
>>> blkaddr < SM_I(sbi)->ssa_blkaddr))
>>> - return false;
>>> + goto err;
>>> break;
>>> case META_CP:
>>> if (unlikely(blkaddr >= SIT_I(sbi)->sit_base_addr ||
>>> blkaddr < __start_cp_addr(sbi)))
>>> - return false;
>>> + goto err;
>>> break;
>>> case META_POR:
>>> if (unlikely(blkaddr >= MAX_BLKADDR(sbi) ||
>>> blkaddr < MAIN_BLKADDR(sbi)))
>>> - return false;
>>> + goto err;
>>> break;
>>> case DATA_GENERIC:
>>> case DATA_GENERIC_ENHANCE:
>>> @@ -210,21 +207,27 @@ static bool __f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
>>> blkaddr);
>>> set_sbi_flag(sbi, SBI_NEED_FSCK);
>>> dump_stack();
>>> - return false;
>>> + goto err;
>>> } else {
>>> - return __is_bitmap_valid(sbi, blkaddr, type);
>>> + valid = __is_bitmap_valid(sbi, blkaddr, type);
>>> + if ((!valid && type != DATA_GENERIC_ENHANCE_UPDATE) ||
>>> + (valid && type == DATA_GENERIC_ENHANCE_UPDATE))
>>> + goto err;
>
> Please think about how to optimize this, which is really ugly now.
How about this?
---
fs/f2fs/checkpoint.c | 16 +++++++++-------
1 file changed, 9 insertions(+), 7 deletions(-)
diff --git a/fs/f2fs/checkpoint.c b/fs/f2fs/checkpoint.c
index 246b2a063cfb..5a6ac6f26cfe 100644
--- a/fs/f2fs/checkpoint.c
+++ b/fs/f2fs/checkpoint.c
@@ -135,7 +135,7 @@ struct page *f2fs_get_tmp_page(struct f2fs_sb_info *sbi, pgoff_t index)
}
static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr,
- int type)
+ int type, bool *record_error)
{
struct seg_entry *se;
unsigned int segno, offset;
@@ -160,6 +160,7 @@ static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr,
blkaddr, exist);
set_sbi_flag(sbi, SBI_NEED_FSCK);
dump_stack();
+ *record_error = true;
}
return exist;
@@ -168,8 +169,6 @@ static bool __is_bitmap_valid(struct f2fs_sb_info *sbi, block_t blkaddr,
static bool __f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
block_t blkaddr, int type)
{
- bool valid = false;
-
switch (type) {
case META_NAT:
break;
@@ -209,10 +208,13 @@ static bool __f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
dump_stack();
goto err;
} else {
- valid = __is_bitmap_valid(sbi, blkaddr, type);
- if ((!valid && type != DATA_GENERIC_ENHANCE_UPDATE) ||
- (valid && type == DATA_GENERIC_ENHANCE_UPDATE))
+ bool valid, record_error = false;
+
+ valid = __is_bitmap_valid(sbi, blkaddr, type,
+ &record_error);
+ if (!valid || record_error)
goto err;
+ return valid;
}
break;
case META_GENERIC:
@@ -227,7 +229,7 @@ static bool __f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
return true;
err:
f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
- return valid;
+ return false;
}
bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
--
2.40.1
>
>>> }
>>> break;
>>> case META_GENERIC:
>>> if (unlikely(blkaddr < SEG0_BLKADDR(sbi) ||
>>> blkaddr >= MAIN_BLKADDR(sbi)))
>>> - return false;
>>> + goto err;
>>> break;
>>> default:
>>> BUG();
>>> }
>>> return true;
>>> +err:
>>> + f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> + return valid;
>>> }
>>> bool f2fs_is_valid_blkaddr(struct f2fs_sb_info *sbi,
>>> diff --git a/fs/f2fs/data.c b/fs/f2fs/data.c
>>> index 05158f8..300f9ae 100644
>>> --- a/fs/f2fs/data.c
>>> +++ b/fs/f2fs/data.c
>>> @@ -738,10 +738,8 @@ int f2fs_submit_page_bio(struct f2fs_io_info *fio)
>>> if (!f2fs_is_valid_blkaddr(fio->sbi, fio->new_blkaddr,
>>> fio->is_por ? META_POR : (__is_meta_io(fio) ?
>>> - META_GENERIC : DATA_GENERIC_ENHANCE))) {
>>> - f2fs_handle_error(fio->sbi, ERROR_INVALID_BLKADDR);
>>> + META_GENERIC : DATA_GENERIC_ENHANCE)))
>>> return -EFSCORRUPTED;
>>> - }
>>> trace_f2fs_submit_page_bio(page, fio);
>>> @@ -946,10 +944,8 @@ int f2fs_merge_page_bio(struct f2fs_io_info *fio)
>>> fio->encrypted_page : fio->page;
>>> if (!f2fs_is_valid_blkaddr(fio->sbi, fio->new_blkaddr,
>>> - __is_meta_io(fio) ? META_GENERIC : DATA_GENERIC)) {
>>> - f2fs_handle_error(fio->sbi, ERROR_INVALID_BLKADDR);
>>> + __is_meta_io(fio) ? META_GENERIC : DATA_GENERIC))
>>> return -EFSCORRUPTED;
>>> - }
>>> trace_f2fs_submit_page_bio(page, fio);
>>> @@ -1286,8 +1282,6 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
>>> if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), dn.data_blkaddr,
>>> DATA_GENERIC_ENHANCE_READ)) {
>>> err = -EFSCORRUPTED;
>>> - f2fs_handle_error(F2FS_I_SB(inode),
>>> - ERROR_INVALID_BLKADDR);
>>> goto put_err;
>>> }
>>> goto got_it;
>>> @@ -1313,8 +1307,6 @@ struct page *f2fs_get_read_data_page(struct inode *inode, pgoff_t index,
>>> dn.data_blkaddr,
>>> DATA_GENERIC_ENHANCE)) {
>>> err = -EFSCORRUPTED;
>>> - f2fs_handle_error(F2FS_I_SB(inode),
>>> - ERROR_INVALID_BLKADDR);
>>> goto put_err;
>>> }
>>> got_it:
>>> @@ -1642,7 +1634,6 @@ int f2fs_map_blocks(struct inode *inode, struct f2fs_map_blocks *map, int flag)
>>> if (!is_hole &&
>>> !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) {
>>> err = -EFSCORRUPTED;
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> goto sync_out;
>>> }
>>> @@ -2166,8 +2157,6 @@ static int f2fs_read_single_page(struct inode *inode, struct page *page,
>>> if (!f2fs_is_valid_blkaddr(F2FS_I_SB(inode), block_nr,
>>> DATA_GENERIC_ENHANCE_READ)) {
>>> ret = -EFSCORRUPTED;
>>> - f2fs_handle_error(F2FS_I_SB(inode),
>>> - ERROR_INVALID_BLKADDR);
>>> goto out;
>>> }
>>> } else {
>>> @@ -2707,11 +2696,8 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
>>> f2fs_lookup_read_extent_cache_block(inode, page->index,
>>> &fio->old_blkaddr)) {
>>> if (!f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
>>> - DATA_GENERIC_ENHANCE)) {
>>> - f2fs_handle_error(fio->sbi,
>>> - ERROR_INVALID_BLKADDR);
>>> + DATA_GENERIC_ENHANCE))
>>> return -EFSCORRUPTED;
>>> - }
>>> ipu_force = true;
>>> fio->need_lock = LOCK_DONE;
>>> @@ -2739,7 +2725,6 @@ int f2fs_do_write_data_page(struct f2fs_io_info *fio)
>>> !f2fs_is_valid_blkaddr(fio->sbi, fio->old_blkaddr,
>>> DATA_GENERIC_ENHANCE)) {
>>> err = -EFSCORRUPTED;
>>> - f2fs_handle_error(fio->sbi, ERROR_INVALID_BLKADDR);
>>> goto out_writepage;
>>> }
>>> @@ -3706,7 +3691,6 @@ static int f2fs_write_begin(struct file *file, struct address_space *mapping,
>>> if (!f2fs_is_valid_blkaddr(sbi, blkaddr,
>>> DATA_GENERIC_ENHANCE_READ)) {
>>> err = -EFSCORRUPTED;
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> goto fail;
>>> }
>>> err = f2fs_submit_page_read(use_cow ?
>>> diff --git a/fs/f2fs/extent_cache.c b/fs/f2fs/extent_cache.c
>>> index ad8dfac7..48048fa 100644
>>> --- a/fs/f2fs/extent_cache.c
>>> +++ b/fs/f2fs/extent_cache.c
>>> @@ -43,7 +43,6 @@ bool sanity_check_extent_cache(struct inode *inode)
>>> if (!f2fs_is_valid_blkaddr(sbi, ei->blk, DATA_GENERIC_ENHANCE) ||
>>> !f2fs_is_valid_blkaddr(sbi, ei->blk + ei->len - 1,
>>> DATA_GENERIC_ENHANCE)) {
>>> - set_sbi_flag(sbi, SBI_NEED_FSCK);
>>> f2fs_warn(sbi, "%s: inode (ino=%lx) extent info [%u, %u, %u] is incorrect, run fsck to fix",
>>> __func__, inode->i_ino,
>>> ei->blk, ei->fofs, ei->len);
>>> @@ -856,10 +855,8 @@ static int __get_new_block_age(struct inode *inode, struct extent_info *ei,
>>> goto out;
>>> if (__is_valid_data_blkaddr(blkaddr) &&
>>> - !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE)) {
>>> - f2fs_bug_on(sbi, 1);
>>> + !f2fs_is_valid_blkaddr(sbi, blkaddr, DATA_GENERIC_ENHANCE))
>>> return -EINVAL;
>>> - }
>>> out:
>>> /*
>>> * init block age with zero, this can happen when the block age extent
>>> diff --git a/fs/f2fs/file.c b/fs/f2fs/file.c
>>> index 25b119cf..23cd6a1 100644
>>> --- a/fs/f2fs/file.c
>>> +++ b/fs/f2fs/file.c
>>> @@ -593,10 +593,8 @@ void f2fs_truncate_data_blocks_range(struct dnode_of_data *dn, int count)
>>> if (time_to_inject(sbi, FAULT_BLKADDR_CONSISTENCE))
>>> continue;
>>> if (!f2fs_is_valid_blkaddr_raw(sbi, blkaddr,
>>> - DATA_GENERIC_ENHANCE)) {
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> + DATA_GENERIC_ENHANCE))
>>> continue;
>>> - }
>>> if (compressed_cluster)
>>> valid_blocks++;
>>> }
>>> @@ -1196,7 +1194,6 @@ static int __read_out_blkaddrs(struct inode *inode, block_t *blkaddr,
>>> !f2fs_is_valid_blkaddr(sbi, *blkaddr,
>>> DATA_GENERIC_ENHANCE)) {
>>> f2fs_put_dnode(&dn);
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> return -EFSCORRUPTED;
>>> }
>>> @@ -1482,7 +1479,6 @@ static int f2fs_do_zero_range(struct dnode_of_data *dn, pgoff_t start,
>>> if (!f2fs_is_valid_blkaddr(sbi, dn->data_blkaddr,
>>> DATA_GENERIC_ENHANCE)) {
>>> ret = -EFSCORRUPTED;
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> break;
>>> }
>>> @@ -3442,10 +3438,8 @@ static int release_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
>>> if (!__is_valid_data_blkaddr(blkaddr))
>>> continue;
>>> if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
>>> - DATA_GENERIC_ENHANCE))) {
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> + DATA_GENERIC_ENHANCE)))
>>> return -EFSCORRUPTED;
>>> - }
>>> }
>>> while (count) {
>>> @@ -3607,10 +3601,8 @@ static int reserve_compress_blocks(struct dnode_of_data *dn, pgoff_t count)
>>> if (!__is_valid_data_blkaddr(blkaddr))
>>> continue;
>>> if (unlikely(!f2fs_is_valid_blkaddr(sbi, blkaddr,
>>> - DATA_GENERIC_ENHANCE))) {
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> + DATA_GENERIC_ENHANCE)))
>>> return -EFSCORRUPTED;
>>> - }
>>> }
>>> while (count) {
>>> @@ -3894,8 +3886,6 @@ static int f2fs_sec_trim_file(struct file *filp, unsigned long arg)
>>> DATA_GENERIC_ENHANCE)) {
>>> ret = -EFSCORRUPTED;
>>> f2fs_put_dnode(&dn);
>>> - f2fs_handle_error(sbi,
>>> - ERROR_INVALID_BLKADDR);
>>> goto out;
>>> }
>>> diff --git a/fs/f2fs/gc.c b/fs/f2fs/gc.c
>>> index a079eeb..30e93d8 100644
>>> --- a/fs/f2fs/gc.c
>>> +++ b/fs/f2fs/gc.c
>>> @@ -1197,7 +1197,6 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
>>> if (unlikely(!f2fs_is_valid_blkaddr(sbi, dn.data_blkaddr,
>>> DATA_GENERIC_ENHANCE_READ))) {
>>> err = -EFSCORRUPTED;
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> goto put_page;
>>> }
>>> goto got_it;
>>> @@ -1216,7 +1215,6 @@ static int ra_data_block(struct inode *inode, pgoff_t index)
>>> if (unlikely(!f2fs_is_valid_blkaddr(sbi, dn.data_blkaddr,
>>> DATA_GENERIC_ENHANCE))) {
>>> err = -EFSCORRUPTED;
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> goto put_page;
>>> }
>>> got_it:
>>> diff --git a/fs/f2fs/recovery.c b/fs/f2fs/recovery.c
>>> index aad1d1a..289c0bf 100644
>>> --- a/fs/f2fs/recovery.c
>>> +++ b/fs/f2fs/recovery.c
>>> @@ -693,14 +693,12 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
>>> if (__is_valid_data_blkaddr(src) &&
>>> !f2fs_is_valid_blkaddr(sbi, src, META_POR)) {
>>> err = -EFSCORRUPTED;
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> goto err;
>>> }
>>> if (__is_valid_data_blkaddr(dest) &&
>>> !f2fs_is_valid_blkaddr(sbi, dest, META_POR)) {
>>> err = -EFSCORRUPTED;
>>> - f2fs_handle_error(sbi, ERROR_INVALID_BLKADDR);
>>> goto err;
>>> }
>>> @@ -755,8 +753,6 @@ static int do_recover_data(struct f2fs_sb_info *sbi, struct inode *inode,
>>> f2fs_err(sbi, "Inconsistent dest blkaddr:%u, ino:%lu, ofs:%u",
>>> dest, inode->i_ino, dn.ofs_in_node);
>>> err = -EFSCORRUPTED;
>>> - f2fs_handle_error(sbi,
>>> - ERROR_INVALID_BLKADDR);
>>> goto err;
>>> }
>>> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
>>> index 7901ede..ad6511f 100644
>>> --- a/fs/f2fs/segment.c
>>> +++ b/fs/f2fs/segment.c
>>> @@ -334,8 +334,6 @@ static int __f2fs_commit_atomic_write(struct inode *inode)
>>> DATA_GENERIC_ENHANCE)) {
>>> f2fs_put_dnode(&dn);
>>> ret = -EFSCORRUPTED;
>>> - f2fs_handle_error(sbi,
>>> - ERROR_INVALID_BLKADDR);
>>> goto out;
>>> }
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