linux-kernel - Re: [PATCH 1/4] fs/ntfs3: Keep preallocated only if option prealloc enabled

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Date:   Sat, 23 Oct 2021 12:55:59 +0300
From:   Kari Argillander <kari.argillander@...il.com>
To:     Konstantin Komarov <almaz.alexandrovich@...agon-software.com>,
        hgkamath@...mail.com
Cc:     ntfs3@...ts.linux.dev, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org
Subject: Re: [PATCH 1/4] fs/ntfs3: Keep preallocated only if option prealloc
 enabled

On Fri, Oct 22, 2021 at 06:54:31PM +0300, Konstantin Komarov wrote:
> If size of file was reduced, we still kept allocated blocks.
> This commit makes ntfs3 work as other fs like btrfs.
> https://bugzilla.kernel.org/show_bug.cgi?id=214719

Link: https://bugzilla.kernel.org/show_bug.cgi?id=214719
> Fixes: 4342306f0f0d ("fs/ntfs3: Add file operations and implementation")
> 
> Reported-by: Ganapathi Kamath

Add <hgkamath@...mail.com>

I also added to loop here. Ganapathi can you test if this patch fix your
problem?

> Signed-off-by: Konstantin Komarov <almaz.alexandrovich@...agon-software.com>
> ---
>  fs/ntfs3/file.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/fs/ntfs3/file.c b/fs/ntfs3/file.c
> index 43b1451bff53..3ac0482c6880 100644
> --- a/fs/ntfs3/file.c
> +++ b/fs/ntfs3/file.c
> @@ -494,7 +494,7 @@ static int ntfs_truncate(struct inode *inode, loff_t new_size)
>  
>  	down_write(&ni->file.run_lock);
>  	err = attr_set_size(ni, ATTR_DATA, NULL, 0, &ni->file.run, new_size,
> -			    &new_valid, true, NULL);
> +			    &new_valid, ni->mi.sbi->options->prealloc, NULL);
>  	up_write(&ni->file.run_lock);
>  
>  	if (new_valid < ni->i_valid)
> -- 
> 2.33.0
> 
>