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Diffstat (limited to 'fs/nfs/inode.c')
-rw-r--r--fs/nfs/inode.c24
1 files changed, 8 insertions, 16 deletions
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index bca6cdcb9f0d..71a49c3acabd 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -468,7 +468,7 @@ static struct nfs_open_context *alloc_nfs_open_context(struct vfsmount *mnt, str
ctx->lockowner = current->files;
ctx->error = 0;
ctx->dir_cookie = 0;
- kref_init(&ctx->kref);
+ atomic_set(&ctx->count, 1);
}
return ctx;
}
@@ -476,21 +476,18 @@ static struct nfs_open_context *alloc_nfs_open_context(struct vfsmount *mnt, str
struct nfs_open_context *get_nfs_open_context(struct nfs_open_context *ctx)
{
if (ctx != NULL)
- kref_get(&ctx->kref);
+ atomic_inc(&ctx->count);
return ctx;
}
-static void nfs_free_open_context(struct kref *kref)
+void put_nfs_open_context(struct nfs_open_context *ctx)
{
- struct nfs_open_context *ctx = container_of(kref,
- struct nfs_open_context, kref);
+ struct inode *inode = ctx->path.dentry->d_inode;
- if (!list_empty(&ctx->list)) {
- struct inode *inode = ctx->path.dentry->d_inode;
- spin_lock(&inode->i_lock);
- list_del(&ctx->list);
- spin_unlock(&inode->i_lock);
- }
+ if (!atomic_dec_and_lock(&ctx->count, &inode->i_lock))
+ return;
+ list_del(&ctx->list);
+ spin_unlock(&inode->i_lock);
if (ctx->state != NULL)
nfs4_close_state(&ctx->path, ctx->state, ctx->mode);
if (ctx->cred != NULL)
@@ -500,11 +497,6 @@ static void nfs_free_open_context(struct kref *kref)
kfree(ctx);
}
-void put_nfs_open_context(struct nfs_open_context *ctx)
-{
- kref_put(&ctx->kref, nfs_free_open_context);
-}
-
/*
* Ensure that mmap has a recent RPC credential for use when writing out
* shared pages