Re: ext4_writepages: jbd2_start: 5120 pages, ino 11; err -5

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On 5/31/22 5:39 PM, Theodore Ts'o wrote:
> Hmmm..... I think this patch should fix your issues.

Thanks a lot. Unfortunately, it didn't, I still occasionally get

    [368259.560885] EXT4-fs (dm-0): ext4_writepages: jbd2_start: 344 pages, ino 279244; err -5


D.


> 
> If the journal has been aborted (which happens as part of the
> shutdown, we will never write out the commit block --- so it should be
> fine to skip the writeback of any dirty inodes in data=ordered mode.
> 
> BTW, if you know that the file system is going to get nuked in this
> way all the time, so you never care about file system after it is shut
> down, you could mount the file system with the mount option
> data=writeback.
> 
>        	      	      	    		- Ted
> 
> 
> diff --git a/fs/ext4/super.c b/fs/ext4/super.c
> index 8ff4c6545a49..2e18211121f6 100644
> --- a/fs/ext4/super.c
> +++ b/fs/ext4/super.c
> @@ -542,7 +542,10 @@ static int ext4_journalled_submit_inode_data_buffers(struct jbd2_inode *jinode)
>  static int ext4_journal_submit_inode_data_buffers(struct jbd2_inode *jinode)
>  {
>  	int ret;
> +	journal_t *journal = EXT4_SB(jinode->i_vfs_inode->i_sb)->s_journal;
>  
> +	if (!journal || is_journal_aborted(journal))
> +		return 0;
>  	if (ext4_should_journal_data(jinode->i_vfs_inode))
>  		ret = ext4_journalled_submit_inode_data_buffers(jinode);
>  	else
> @@ -554,7 +557,10 @@ static int ext4_journal_submit_inode_data_buffers(struct jbd2_inode *jinode)
>  static int ext4_journal_finish_inode_data_buffers(struct jbd2_inode *jinode)
>  {
>  	int ret = 0;
> +	journal_t *journal = EXT4_SB(jinode->i_vfs_inode->i_sb)->s_journal;
>  
> +	if (!journal || is_journal_aborted(journal))
> +		return 0;
>  	if (!ext4_should_journal_data(jinode->i_vfs_inode))
>  		ret = jbd2_journal_finish_inode_data_buffers(jinode);
> 


-- 
Donald Buczek
buczek@xxxxxxxxxxxxx
Tel: +49 30 8413 1433

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