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Subject[PATCH v3 12/25] config-fs: Change how dentry's d_lock and d_count fields are accessed
Date
Because of the changes made in dcache.h header file, files that use
the d_lock and d_count fields 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.
References to d_count are replaced by the d_ret_count() calls.
There is no change in logic and everything should just work.

Signed-off-by: Waiman Long <Waiman.Long@hp.com>
---
fs/configfs/configfs_internal.h | 4 ++--
fs/configfs/dir.c | 2 +-
fs/configfs/inode.c | 6 +++---
3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/fs/configfs/configfs_internal.h b/fs/configfs/configfs_internal.h
index b5f0a3b..35c03d5 100644
--- a/fs/configfs/configfs_internal.h
+++ b/fs/configfs/configfs_internal.h
@@ -120,7 +120,7 @@ static inline struct config_item *configfs_get_config_item(struct dentry *dentry
{
struct config_item * item = NULL;

- spin_lock(&dentry->d_lock);
+ d_lock(dentry);
if (!d_unhashed(dentry)) {
struct configfs_dirent * sd = dentry->d_fsdata;
if (sd->s_type & CONFIGFS_ITEM_LINK) {
@@ -129,7 +129,7 @@ static inline struct config_item *configfs_get_config_item(struct dentry *dentry
} else
item = config_item_get(sd->s_element);
}
- spin_unlock(&dentry->d_lock);
+ d_unlock(dentry);

return item;
}
diff --git a/fs/configfs/dir.c b/fs/configfs/dir.c
index 7aabc6a..9089d78 100644
--- a/fs/configfs/dir.c
+++ b/fs/configfs/dir.c
@@ -387,7 +387,7 @@ static void remove_dir(struct dentry * d)
if (d->d_inode)
simple_rmdir(parent->d_inode,d);

- pr_debug(" o %s removing done (%d)\n",d->d_name.name, d->d_count);
+ pr_debug(" o %s removing done (%d)\n", d->d_name.name, d_ret_count(d));

dput(parent);
}
diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c
index a9d35b0..83838f7 100644
--- a/fs/configfs/inode.c
+++ b/fs/configfs/inode.c
@@ -249,14 +249,14 @@ void configfs_drop_dentry(struct configfs_dirent * sd, struct dentry * parent)
struct dentry * dentry = sd->s_dentry;

if (dentry) {
- spin_lock(&dentry->d_lock);
+ d_lock(dentry);
if (!(d_unhashed(dentry) && dentry->d_inode)) {
dget_dlock(dentry);
__d_drop(dentry);
- spin_unlock(&dentry->d_lock);
+ d_unlock(dentry);
simple_unlink(parent->d_inode, dentry);
} else
- spin_unlock(&dentry->d_lock);
+ d_unlock(dentry);
}
}

--
1.7.1


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