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-rw-r--r--mm/shmem_acl.c171
1 files changed, 0 insertions, 171 deletions
diff --git a/mm/shmem_acl.c b/mm/shmem_acl.c
deleted file mode 100644
index df2c87fdae50..000000000000
--- a/mm/shmem_acl.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * mm/shmem_acl.c
- *
- * (C) 2005 Andreas Gruenbacher <agruen@suse.de>
- *
- * This file is released under the GPL.
- */
-
-#include <linux/fs.h>
-#include <linux/shmem_fs.h>
-#include <linux/xattr.h>
-#include <linux/generic_acl.h>
-
-/**
- * shmem_get_acl - generic_acl_operations->getacl() operation
- */
-static struct posix_acl *
-shmem_get_acl(struct inode *inode, int type)
-{
- struct posix_acl *acl = NULL;
-
- spin_lock(&inode->i_lock);
- switch(type) {
- case ACL_TYPE_ACCESS:
- acl = posix_acl_dup(inode->i_acl);
- break;
-
- case ACL_TYPE_DEFAULT:
- acl = posix_acl_dup(inode->i_default_acl);
- break;
- }
- spin_unlock(&inode->i_lock);
-
- return acl;
-}
-
-/**
- * shmem_set_acl - generic_acl_operations->setacl() operation
- */
-static void
-shmem_set_acl(struct inode *inode, int type, struct posix_acl *acl)
-{
- struct posix_acl *free = NULL;
-
- spin_lock(&inode->i_lock);
- switch(type) {
- case ACL_TYPE_ACCESS:
- free = inode->i_acl;
- inode->i_acl = posix_acl_dup(acl);
- break;
-
- case ACL_TYPE_DEFAULT:
- free = inode->i_default_acl;
- inode->i_default_acl = posix_acl_dup(acl);
- break;
- }
- spin_unlock(&inode->i_lock);
- posix_acl_release(free);
-}
-
-struct generic_acl_operations shmem_acl_ops = {
- .getacl = shmem_get_acl,
- .setacl = shmem_set_acl,
-};
-
-/**
- * shmem_list_acl_access, shmem_get_acl_access, shmem_set_acl_access,
- * shmem_xattr_acl_access_handler - plumbing code to implement the
- * system.posix_acl_access xattr using the generic acl functions.
- */
-
-static size_t
-shmem_list_acl_access(struct inode *inode, char *list, size_t list_size,
- const char *name, size_t name_len)
-{
- return generic_acl_list(inode, &shmem_acl_ops, ACL_TYPE_ACCESS,
- list, list_size);
-}
-
-static int
-shmem_get_acl_access(struct inode *inode, const char *name, void *buffer,
- size_t size)
-{
- if (strcmp(name, "") != 0)
- return -EINVAL;
- return generic_acl_get(inode, &shmem_acl_ops, ACL_TYPE_ACCESS, buffer,
- size);
-}
-
-static int
-shmem_set_acl_access(struct inode *inode, const char *name, const void *value,
- size_t size, int flags)
-{
- if (strcmp(name, "") != 0)
- return -EINVAL;
- return generic_acl_set(inode, &shmem_acl_ops, ACL_TYPE_ACCESS, value,
- size);
-}
-
-struct xattr_handler shmem_xattr_acl_access_handler = {
- .prefix = POSIX_ACL_XATTR_ACCESS,
- .list = shmem_list_acl_access,
- .get = shmem_get_acl_access,
- .set = shmem_set_acl_access,
-};
-
-/**
- * shmem_list_acl_default, shmem_get_acl_default, shmem_set_acl_default,
- * shmem_xattr_acl_default_handler - plumbing code to implement the
- * system.posix_acl_default xattr using the generic acl functions.
- */
-
-static size_t
-shmem_list_acl_default(struct inode *inode, char *list, size_t list_size,
- const char *name, size_t name_len)
-{
- return generic_acl_list(inode, &shmem_acl_ops, ACL_TYPE_DEFAULT,
- list, list_size);
-}
-
-static int
-shmem_get_acl_default(struct inode *inode, const char *name, void *buffer,
- size_t size)
-{
- if (strcmp(name, "") != 0)
- return -EINVAL;
- return generic_acl_get(inode, &shmem_acl_ops, ACL_TYPE_DEFAULT, buffer,
- size);
-}
-
-static int
-shmem_set_acl_default(struct inode *inode, const char *name, const void *value,
- size_t size, int flags)
-{
- if (strcmp(name, "") != 0)
- return -EINVAL;
- return generic_acl_set(inode, &shmem_acl_ops, ACL_TYPE_DEFAULT, value,
- size);
-}
-
-struct xattr_handler shmem_xattr_acl_default_handler = {
- .prefix = POSIX_ACL_XATTR_DEFAULT,
- .list = shmem_list_acl_default,
- .get = shmem_get_acl_default,
- .set = shmem_set_acl_default,
-};
-
-/**
- * shmem_acl_init - Inizialize the acl(s) of a new inode
- */
-int
-shmem_acl_init(struct inode *inode, struct inode *dir)
-{
- return generic_acl_init(inode, dir, &shmem_acl_ops);
-}
-
-/**
- * shmem_check_acl - check_acl() callback for generic_permission()
- */
-int
-shmem_check_acl(struct inode *inode, int mask)
-{
- struct posix_acl *acl = shmem_get_acl(inode, ACL_TYPE_ACCESS);
-
- if (acl) {
- int error = posix_acl_permission(inode, acl, mask);
- posix_acl_release(acl);
- return error;
- }
- return -EAGAIN;
-}