diff options
author | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:18:27 +0200 |
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committer | Ingo Molnar <mingo@kernel.org> | 2012-04-14 13:19:04 +0200 |
commit | 6ac1ef482d7ae0c690f1640bf6eb818ff9a2d91e (patch) | |
tree | 021cc9f6b477146fcebe6f3be4752abfa2ba18a9 /fs/reiserfs/acl.h | |
parent | 682968e0c425c60f0dde37977e5beb2b12ddc4cc (diff) | |
parent | a385ec4f11bdcf81af094c03e2444ee9b7fad2e5 (diff) |
Merge branch 'perf/core' into perf/uprobes
Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/reiserfs/acl.h')
-rw-r--r-- | fs/reiserfs/acl.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/fs/reiserfs/acl.h b/fs/reiserfs/acl.h new file mode 100644 index 00000000000..f096b80e73d --- /dev/null +++ b/fs/reiserfs/acl.h @@ -0,0 +1,76 @@ +#include <linux/init.h> +#include <linux/posix_acl.h> + +#define REISERFS_ACL_VERSION 0x0001 + +typedef struct { + __le16 e_tag; + __le16 e_perm; + __le32 e_id; +} reiserfs_acl_entry; + +typedef struct { + __le16 e_tag; + __le16 e_perm; +} reiserfs_acl_entry_short; + +typedef struct { + __le32 a_version; +} reiserfs_acl_header; + +static inline size_t reiserfs_acl_size(int count) +{ + if (count <= 4) { + return sizeof(reiserfs_acl_header) + + count * sizeof(reiserfs_acl_entry_short); + } else { + return sizeof(reiserfs_acl_header) + + 4 * sizeof(reiserfs_acl_entry_short) + + (count - 4) * sizeof(reiserfs_acl_entry); + } +} + +static inline int reiserfs_acl_count(size_t size) +{ + ssize_t s; + size -= sizeof(reiserfs_acl_header); + s = size - 4 * sizeof(reiserfs_acl_entry_short); + if (s < 0) { + if (size % sizeof(reiserfs_acl_entry_short)) + return -1; + return size / sizeof(reiserfs_acl_entry_short); + } else { + if (s % sizeof(reiserfs_acl_entry)) + return -1; + return s / sizeof(reiserfs_acl_entry) + 4; + } +} + +#ifdef CONFIG_REISERFS_FS_POSIX_ACL +struct posix_acl *reiserfs_get_acl(struct inode *inode, int type); +int reiserfs_acl_chmod(struct inode *inode); +int reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th, + struct inode *dir, struct dentry *dentry, + struct inode *inode); +int reiserfs_cache_default_acl(struct inode *dir); +extern const struct xattr_handler reiserfs_posix_acl_default_handler; +extern const struct xattr_handler reiserfs_posix_acl_access_handler; + +#else + +#define reiserfs_cache_default_acl(inode) 0 +#define reiserfs_get_acl NULL + +static inline int reiserfs_acl_chmod(struct inode *inode) +{ + return 0; +} + +static inline int +reiserfs_inherit_default_acl(struct reiserfs_transaction_handle *th, + const struct inode *dir, struct dentry *dentry, + struct inode *inode) +{ + return 0; +} +#endif |