diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 12:04:02 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-12-16 12:04:02 -0800 |
commit | bac5e54c29f352d962a2447d22735316b347b9f1 (patch) | |
tree | 7642993fa93164835ffaa2dacd341388193f1979 /mm/shmem_acl.c | |
parent | 529e89430d6c0d64db8ac474cb95e68e2527c79a (diff) | |
parent | c05c4edd876b7ae92787d1295868afcb89b6a348 (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (38 commits)
direct I/O fallback sync simplification
ocfs: stop using do_sync_mapping_range
cleanup blockdev_direct_IO locking
make generic_acl slightly more generic
sanitize xattr handler prototypes
libfs: move EXPORT_SYMBOL for d_alloc_name
vfs: force reval of target when following LAST_BIND symlinks (try #7)
ima: limit imbalance msg
Untangling ima mess, part 3: kill dead code in ima
Untangling ima mess, part 2: deal with counters
Untangling ima mess, part 1: alloc_file()
O_TRUNC open shouldn't fail after file truncation
ima: call ima_inode_free ima_inode_free
IMA: clean up the IMA counts updating code
ima: only insert at inode creation time
ima: valid return code from ima_inode_alloc
fs: move get_empty_filp() deffinition to internal.h
Sanitize exec_permission_lite()
Kill cached_lookup() and real_lookup()
Kill path_lookup_open()
...
Trivial conflicts in fs/direct-io.c
Diffstat (limited to 'mm/shmem_acl.c')
-rw-r--r-- | mm/shmem_acl.c | 171 |
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; -} |