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Date: Sat, 24 Feb 2024 10:44:09 +0800
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Subject: Re: [PATCH] f2fs: fix to use correct segment type in
 f2fs_allocate_data_block()
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To: Jaegeuk Kim <jaegeuk@kernel.org>
Cc: linux-f2fs-devel@lists.sourceforge.net, linux-kernel@vger.kernel.org
References: <20240223025403.1180558-1-chao@kernel.org>
 <ZdkFnLirvxRdenX0@google.com>
From: Chao Yu <chao@kernel.org>
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In-Reply-To: <ZdkFnLirvxRdenX0@google.com>
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On 2024/2/24 4:52, Jaegeuk Kim wrote:
> On 02/23, Chao Yu wrote:
>> @type in f2fs_allocate_data_block() indicates log header's type, it
>> can be CURSEG_COLD_DATA_PINNED or CURSEG_ALL_DATA_ATGC, rather than
>> type of data/node, however IS_DATASEG()/IS_NODESEG() only accept later
>> one, fix it.
>>
>> Fixes: 093749e296e2 ("f2fs: support age threshold based garbage collection")
>> Signed-off-by: Chao Yu <chao@kernel.org>
>> ---
>>   fs/f2fs/segment.c | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/fs/f2fs/segment.c b/fs/f2fs/segment.c
>> index d0209ea77dd2..76422f50e6cc 100644
>> --- a/fs/f2fs/segment.c
>> +++ b/fs/f2fs/segment.c
>> @@ -3505,12 +3505,12 @@ void f2fs_allocate_data_block(struct f2fs_sb_info *sbi, struct page *page,
>>   	locate_dirty_segment(sbi, GET_SEGNO(sbi, old_blkaddr));
>>   	locate_dirty_segment(sbi, GET_SEGNO(sbi, *new_blkaddr));
>>   
>> -	if (IS_DATASEG(type))
>> +	if (IS_DATASEG(se->type))
> 
> We have se only when type is CURSEG_ALL_DATA_ATGC. We may need to change

Oops, correct.

> IS_DATASEG()?

Sure, I guess one other way is to use curseg->seg_type, let me know if
you prefer to change IS_DATASEG().

Thanks,

> 
>>   		atomic64_inc(&sbi->allocated_data_blocks);
>>   
>>   	up_write(&sit_i->sentry_lock);
>>   
>> -	if (page && IS_NODESEG(type)) {
>> +	if (page && IS_NODESEG(se->type)) {
>>   		fill_node_footer_blkaddr(page, NEXT_FREE_BLKADDR(sbi, curseg));
>>   
>>   		f2fs_inode_chksum_set(sbi, page);
>> -- 
>> 2.40.1