Messages in this thread Patch in this message | | | From | "Kirill A. Shutemov" <> | Subject | [PATCH v2 01/12] sunrpc: mount rpc_pipefs on initialization | Date | Wed, 29 Dec 2010 15:14:19 +0200 |
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Mount rpc_pipefs on register_rpc_pipefs() and replace rpc_get_mount()/rpc_put_mount() implementation with mntget()/mntput().
Signed-off-by: Kirill A. Shutemov <kas@openvz.org> --- net/sunrpc/rpc_pipe.c | 27 ++++++++++++++++----------- 1 files changed, 16 insertions(+), 11 deletions(-)
diff --git a/net/sunrpc/rpc_pipe.c b/net/sunrpc/rpc_pipe.c index 10a17a3..7f3fbdd 100644 --- a/net/sunrpc/rpc_pipe.c +++ b/net/sunrpc/rpc_pipe.c @@ -29,7 +29,6 @@ #include <linux/sunrpc/cache.h> static struct vfsmount *rpc_mnt __read_mostly; -static int rpc_mount_count; static struct file_system_type rpc_pipe_fs_type; @@ -415,18 +414,13 @@ struct rpc_filelist { struct vfsmount *rpc_get_mount(void) { - int err; - - err = simple_pin_fs(&rpc_pipe_fs_type, &rpc_mnt, &rpc_mount_count); - if (err != 0) - return ERR_PTR(err); - return rpc_mnt; + return mntget(rpc_mnt); } EXPORT_SYMBOL_GPL(rpc_get_mount); void rpc_put_mount(void) { - simple_release_fs(&rpc_mnt, &rpc_mount_count); + mntput(rpc_mnt); } EXPORT_SYMBOL_GPL(rpc_put_mount); @@ -1063,16 +1057,27 @@ int register_rpc_pipefs(void) if (!rpc_inode_cachep) return -ENOMEM; err = register_filesystem(&rpc_pipe_fs_type); - if (err) { - kmem_cache_destroy(rpc_inode_cachep); - return err; + if (err) + goto destroy_cache; + + rpc_mnt = kern_mount(&rpc_pipe_fs_type); + if (IS_ERR(rpc_mnt)) { + err = PTR_ERR(rpc_mnt); + goto unregister_fs; } return 0; + +unregister_fs: + unregister_filesystem(&rpc_pipe_fs_type); +destroy_cache: + kmem_cache_destroy(rpc_inode_cachep); + return err; } void unregister_rpc_pipefs(void) { + mntput(rpc_mnt); kmem_cache_destroy(rpc_inode_cachep); unregister_filesystem(&rpc_pipe_fs_type); } -- 1.7.3.4
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