Ocfs2 devel - Jul 2013 - [PATCH v3 22/25] ocfs2: Change how dentry's d_lock field is accessed

Because of the changes made in dcache.h header file, files that
use the d_lock field of the dentry structure need to be changed
accordingly. All the d_lock''s spin_lock() and spin_unlock() calls
are replaced by the corresponding d_lock() and d_unlock() calls.
There is no change in logic and everything should just work.

Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
 fs/ocfs2/dcache.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index ef99972..4f72906 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -173,17 +173,17 @@ struct dentry *ocfs2_find_local_alias(struct inode *inode,
 
 	spin_lock(&inode->i_lock);
 	hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
-		spin_lock(&dentry->d_lock);
+		d_lock(dentry);
 		if (ocfs2_match_dentry(dentry, parent_blkno, skip_unhashed)) {
 			trace_ocfs2_find_local_alias(dentry->d_name.len,
 						     dentry->d_name.name);
 
 			dget_dlock(dentry);
-			spin_unlock(&dentry->d_lock);
+			d_unlock(dentry);
 			spin_unlock(&inode->i_lock);
 			return dentry;
 		}
-		spin_unlock(&dentry->d_lock);
+		d_unlock(dentry);
 	}
 	spin_unlock(&inode->i_lock);
 	return NULL;
-- 
1.7.1

Because of the changes made in dcache.h header file, files that
use the d_lock field of the dentry structure need to be changed
accordingly. All the d_lock's spin_lock() and spin_unlock() calls
are replaced by the corresponding d_lock() and d_unlock() calls.
There is no change in logic and everything should just work.

Signed-off-by: Waiman Long <Waiman.Long at hp.com>
---
 fs/ocfs2/dcache.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
index ef99972..4f72906 100644
--- a/fs/ocfs2/dcache.c
+++ b/fs/ocfs2/dcache.c
@@ -173,17 +173,17 @@ struct dentry *ocfs2_find_local_alias(struct inode *inode,
 
 	spin_lock(&inode->i_lock);
 	hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
-		spin_lock(&dentry->d_lock);
+		d_lock(dentry);
 		if (ocfs2_match_dentry(dentry, parent_blkno, skip_unhashed)) {
 			trace_ocfs2_find_local_alias(dentry->d_name.len,
 						     dentry->d_name.name);
 
 			dget_dlock(dentry);
-			spin_unlock(&dentry->d_lock);
+			d_unlock(dentry);
 			spin_unlock(&inode->i_lock);
 			return dentry;
 		}
-		spin_unlock(&dentry->d_lock);
+		d_unlock(dentry);
 	}
 	spin_unlock(&inode->i_lock);
 	return NULL;
-- 
1.7.1

On Wed, Jul 03, 2013 at 04:22:02PM -0400, Waiman Long
wrote:
> Because of the changes made in dcache.h header file, files that
> use the d_lock field of the dentry structure need to be changed
> accordingly. All the d_lock's spin_lock() and spin_unlock() calls
> are replaced by the corresponding d_lock() and d_unlock() calls.
> There is no change in logic and everything should just work.
> 
> Signed-off-by: Waiman Long <Waiman.Long at hp.com>
This looks reasonable, but I'll wait for the followup from Linus'
review.

Joel
> ---
>  fs/ocfs2/dcache.c |    6 +++---
>  1 files changed, 3 insertions(+), 3 deletions(-)
> 
> diff --git a/fs/ocfs2/dcache.c b/fs/ocfs2/dcache.c
> index ef99972..4f72906 100644
> --- a/fs/ocfs2/dcache.c
> +++ b/fs/ocfs2/dcache.c
> @@ -173,17 +173,17 @@ struct dentry *ocfs2_find_local_alias(struct inode
*inode,
>  
>  	spin_lock(&inode->i_lock);
>  	hlist_for_each_entry(dentry, &inode->i_dentry, d_alias) {
> -		spin_lock(&dentry->d_lock);
> +		d_lock(dentry);
>  		if (ocfs2_match_dentry(dentry, parent_blkno, skip_unhashed)) {
>  			trace_ocfs2_find_local_alias(dentry->d_name.len,
>  						     dentry->d_name.name);
>  
>  			dget_dlock(dentry);
> -			spin_unlock(&dentry->d_lock);
> +			d_unlock(dentry);
>  			spin_unlock(&inode->i_lock);
>  			return dentry;
>  		}
> -		spin_unlock(&dentry->d_lock);
> +		d_unlock(dentry);
>  	}
>  	spin_unlock(&inode->i_lock);
>  	return NULL;
> -- 
> 1.7.1
> 
-- 

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