[PATCH V2] fs/jfs/jfs_inode.c: atomically set inode->i_flags

[PATCH V2] fs/jfs/jfs_inode.c: atomically set inode->i_flags

[Fabian Frederick]

According to commit 5f16f3225b0624

ext4: atomically set inode->i_flags in ext4_set_inode_flags()

Inspired-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Dave Kleikamp <shaggy@kernel.org>
Cc: "Theodore Ts'o" <tytso@mit.edu>
Signed-off-by: Fabian Frederick <fabf@skynet.be>
---
 fs/jfs/jfs_inode.c | 16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
index 7f464c5..6b0f816 100644
--- a/fs/jfs/jfs_inode.c
+++ b/fs/jfs/jfs_inode.c
@@ -29,20 +29,20 @@
 void jfs_set_inode_flags(struct inode *inode)
 {
 	unsigned int flags = JFS_IP(inode)->mode2;
-
-	inode->i_flags &= ~(S_IMMUTABLE | S_APPEND |
-		S_NOATIME | S_DIRSYNC | S_SYNC);
+	unsigned int new_fl = 0;
 
 	if (flags & JFS_IMMUTABLE_FL)
-		inode->i_flags |= S_IMMUTABLE;
+		new_fl |= S_IMMUTABLE;
 	if (flags & JFS_APPEND_FL)
-		inode->i_flags |= S_APPEND;
+		new_fl |= S_APPEND;
 	if (flags & JFS_NOATIME_FL)
-		inode->i_flags |= S_NOATIME;
+		new_fl |= S_NOATIME;
 	if (flags & JFS_DIRSYNC_FL)
-		inode->i_flags |= S_DIRSYNC;
+		new_fl |= S_DIRSYNC;
 	if (flags & JFS_SYNC_FL)
-		inode->i_flags |= S_SYNC;
+		new_fl |= S_SYNC;
+	inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND | S_NOATIME |
+			S_DIRSYNC | S_SYNC);
 }
 
 void jfs_get_inode_flags(struct jfs_inode_info *jfs_ip)
-- 
1.8.3.2

Re: [PATCH V2] fs/jfs/jfs_inode.c: atomically set inode->i_flags

[Dave Kleikamp]

Looks good to me. I'll push it upstream.

Thanks,
Dave

On 04/14/2014 02:39 AM, Fabian Frederick wrote:
> According to commit 5f16f3225b0624
> 
> ext4: atomically set inode->i_flags in ext4_set_inode_flags()
> 
> Inspired-by: "Theodore Ts'o" <tytso@mit.edu>
> Cc: Dave Kleikamp <shaggy@kernel.org>
> Cc: "Theodore Ts'o" <tytso@mit.edu>
> Signed-off-by: Fabian Frederick <fabf@skynet.be>
> ---
>  fs/jfs/jfs_inode.c | 16 ++++++++--------
>  1 file changed, 8 insertions(+), 8 deletions(-)
> 
> diff --git a/fs/jfs/jfs_inode.c b/fs/jfs/jfs_inode.c
> index 7f464c5..6b0f816 100644
> --- a/fs/jfs/jfs_inode.c
> +++ b/fs/jfs/jfs_inode.c
> @@ -29,20 +29,20 @@
>  void jfs_set_inode_flags(struct inode *inode)
>  {
>  	unsigned int flags = JFS_IP(inode)->mode2;
> -
> -	inode->i_flags &= ~(S_IMMUTABLE | S_APPEND |
> -		S_NOATIME | S_DIRSYNC | S_SYNC);
> +	unsigned int new_fl = 0;
>  
>  	if (flags & JFS_IMMUTABLE_FL)
> -		inode->i_flags |= S_IMMUTABLE;
> +		new_fl |= S_IMMUTABLE;
>  	if (flags & JFS_APPEND_FL)
> -		inode->i_flags |= S_APPEND;
> +		new_fl |= S_APPEND;
>  	if (flags & JFS_NOATIME_FL)
> -		inode->i_flags |= S_NOATIME;
> +		new_fl |= S_NOATIME;
>  	if (flags & JFS_DIRSYNC_FL)
> -		inode->i_flags |= S_DIRSYNC;
> +		new_fl |= S_DIRSYNC;
>  	if (flags & JFS_SYNC_FL)
> -		inode->i_flags |= S_SYNC;
> +		new_fl |= S_SYNC;
> +	inode_set_flags(inode, new_fl, S_IMMUTABLE | S_APPEND | S_NOATIME |
> +			S_DIRSYNC | S_SYNC);
>  }
>  
>  void jfs_get_inode_flags(struct jfs_inode_info *jfs_ip)
>