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From: Jan Kara <jack@suse.cz>
To: Mateusz Guzik <mjguzik@gmail.com>
Cc: brauner@kernel.org, viro@zeniv.linux.org.uk, jack@suse.cz,
	linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	hughd@google.com, linux-ext4@vger.kernel.org, tytso@mit.edu,
	linux-mm@kvack.org
Subject: Re: [PATCH v3 3/3] tmpfs: use inode_set_cached_link()
Date: Thu, 21 Nov 2024 12:59:32 +0100	[thread overview]
Message-ID: <20241121115932.bwm64mrghjc3nxtk@quack3> (raw)
In-Reply-To: <20241120112037.822078-4-mjguzik@gmail.com>

On Wed 20-11-24 12:20:36, Mateusz Guzik wrote:
> Signed-off-by: Mateusz Guzik <mjguzik@gmail.com>

Looks good. Feel free to add:

Reviewed-by: Jan Kara <jack@suse.cz>

								Honza

> ---
>  mm/shmem.c | 6 ++++--
>  1 file changed, 4 insertions(+), 2 deletions(-)
> 
> diff --git a/mm/shmem.c b/mm/shmem.c
> index c7881e16f4be..135f38eb2ff1 100644
> --- a/mm/shmem.c
> +++ b/mm/shmem.c
> @@ -3868,6 +3868,7 @@ static int shmem_symlink(struct mnt_idmap *idmap, struct inode *dir,
>  	int len;
>  	struct inode *inode;
>  	struct folio *folio;
> +	char *link;
>  
>  	len = strlen(symname) + 1;
>  	if (len > PAGE_SIZE)
> @@ -3889,12 +3890,13 @@ static int shmem_symlink(struct mnt_idmap *idmap, struct inode *dir,
>  
>  	inode->i_size = len-1;
>  	if (len <= SHORT_SYMLINK_LEN) {
> -		inode->i_link = kmemdup(symname, len, GFP_KERNEL);
> -		if (!inode->i_link) {
> +		link = kmemdup(symname, len, GFP_KERNEL);
> +		if (!link) {
>  			error = -ENOMEM;
>  			goto out_remove_offset;
>  		}
>  		inode->i_op = &shmem_short_symlink_operations;
> +		inode_set_cached_link(inode, link, len - 1);
>  	} else {
>  		inode_nohighmem(inode);
>  		inode->i_mapping->a_ops = &shmem_aops;
> -- 
> 2.43.0
> 
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR


  reply	other threads:[~2024-11-21 11:59 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-11-20 11:20 [PATCH v3 0/3] symlink length caching Mateusz Guzik
2024-11-20 11:20 ` [PATCH v3 1/3] vfs: support caching symlink lengths in inodes Mateusz Guzik
2024-11-21 10:12   ` Christian Brauner
2024-11-21 13:56     ` Mateusz Guzik
2024-11-22  1:56     ` Dave Chinner
2024-11-20 11:20 ` [PATCH v3 2/3] ext4: use inode_set_cached_link() Mateusz Guzik
2024-11-21 11:58   ` Jan Kara
2024-11-20 11:20 ` [PATCH v3 3/3] tmpfs: " Mateusz Guzik
2024-11-21 11:59   ` Jan Kara [this message]
2024-11-21 12:34 ` [PATCH v3 0/3] symlink length caching Christian Brauner
2024-11-21 14:16 ` Jeff Layton

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