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authorLinus Torvalds <torvalds@linux-foundation.org>2012-03-21 16:36:41 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2012-03-21 16:36:41 -0400
commite2a0883e4071237d09b604a342c28b96b44a04b3 (patch)
treeaa56f4d376b5eb1c32358c19c2669c2a94e0e1fd /fs/reiserfs/acl.h
parent3a990a52f9f25f45469e272017a31e7a3fda60ed (diff)
parent07c0c5d8b8c122b2f2df9ee574ac3083daefc981 (diff)
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs pile 1 from Al Viro: "This is _not_ all; in particular, Miklos' and Jan's stuff is not there yet." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (64 commits) ext4: initialization of ext4_li_mtx needs to be done earlier debugfs-related mode_t whack-a-mole hfsplus: add an ioctl to bless files hfsplus: change finder_info to u32 hfsplus: initialise userflags qnx4: new helper - try_extent() qnx4: get rid of qnx4_bread/qnx4_getblk take removal of PF_FORKNOEXEC to flush_old_exec() trim includes in inode.c um: uml_dup_mmap() relies on ->mmap_sem being held, but activate_mm() doesn't hold it um: embed ->stub_pages[] into mmu_context gadgetfs: list_for_each_safe() misuse ocfs2: fix leaks on failure exits in module_init ecryptfs: make register_filesystem() the last potential failure exit ntfs: forgets to unregister sysctls on register_filesystem() failure logfs: missing cleanup on register_filesystem() failure jfs: mising cleanup on register_filesystem() failure make configfs_pin_fs() return root dentry on success configfs: configfs_create_dir() has parent dentry in dentry->d_parent configfs: sanitize configfs_create() ...
Diffstat (limited to 'fs/reiserfs/acl.h')
-rw-r--r--fs/reiserfs/acl.h76
1 files changed, 76 insertions, 0 deletions
diff --git a/fs/reiserfs/acl.h b/fs/reiserfs/acl.h
new file mode 100644
index 000000000000..f096b80e73d8
--- /dev/null
+++ b/fs/reiserfs/acl.h
@@ -0,0 +1,76 @@
1#include <linux/init.h>
2#include <linux/posix_acl.h>
3
4#define REISERFS_ACL_VERSION 0x0001
5
6typedef struct {
7 __le16 e_tag;
8 __le16 e_perm;
9 __le32 e_id;
10} reiserfs_acl_entry;
11
12typedef struct {
13 __le16 e_tag;
14 __le16 e_perm;
15} reiserfs_acl_entry_short;
16
17typedef struct {
18 __le32 a_version;
19} reiserfs_acl_header;
20
21static inline size_t reiserfs_acl_size(int count)
22{
23 if (count <= 4) {
24 return sizeof(reiserfs_acl_header) +
25 count * sizeof(reiserfs_acl_entry_short);
26 } else {
27 return sizeof(reiserfs_acl_header) +
28 4 * sizeof(reiserfs_acl_entry_short) +
29 (count - 4) * sizeof(reiserfs_acl_entry);
30 }
31}
32
33static inline int reiserfs_acl_count(size_t size)
34{
35 ssize_t s;
36 size -= sizeof(reiserfs_acl_header);
37 s = size - 4 * sizeof(reiserfs_acl_entry_short);
38 if (s < 0) {
39 if (size % sizeof(reiserfs_acl_entry_short))
40 return -1;
41 return size / sizeof(reiserfs_acl_entry_short);
42 } else {
43 if (s % sizeof(reiserfs_acl_entry))
44 return -1;
45 return s / sizeof(reiserfs_acl_entry) + 4;
46 }
47}
48
49#ifdef CONFIG_REISERFS_FS_POSIX_ACL
50struct posix_acl *reiserfs_get_acl(struct inode *inode, int type);
51int reiserfs_acl_chmod(struct inode *inode);
52int reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
53 struct inode *dir, struct dentry *dentry,
54 struct inode *inode);
55int reiserfs_cache_default_acl(struct inode *dir);
56extern const struct xattr_handler reiserfs_posix_acl_default_handler;
57extern const struct xattr_handler reiserfs_posix_acl_access_handler;
58
59#else
60
61#define reiserfs_cache_default_acl(inode) 0
62#define reiserfs_get_acl NULL
63
64static inline int reiserfs_acl_chmod(struct inode *inode)
65{
66 return 0;
67}
68
69static inline int
70reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th,
71 const struct inode *dir, struct dentry *dentry,
72 struct inode *inode)
73{
74 return 0;
75}
76#endif