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author | Tejun Heo <tj@kernel.org> | 2012-04-01 12:30:01 -0700 |
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committer | Tejun Heo <tj@kernel.org> | 2012-04-01 12:55:00 -0700 |
commit | 959d851caa48829eb85cb85aa949fd6b4c5d5bc6 (patch) | |
tree | 3ba9c94ec346275fb44c4f0d1cd2537cdff8d811 /fs/reiserfs/acl.h | |
parent | a5567932fc926739e29e98487128080f40c61710 (diff) | |
parent | 48ddbe194623ae089cc0576e60363f2d2e85662a (diff) | |
download | talos-obmc-linux-959d851caa48829eb85cb85aa949fd6b4c5d5bc6.tar.gz talos-obmc-linux-959d851caa48829eb85cb85aa949fd6b4c5d5bc6.zip |
Merge branch 'for-3.5' of ../cgroup into block/for-3.5/core-merged
cgroup/for-3.5 contains the following changes which blk-cgroup needs
to proceed with the on-going cleanup.
* Dynamic addition and removal of cftypes to make config/stat file
handling modular for policies.
* cgroup removal update to not wait for css references to drain to fix
blkcg removal hang caused by cfq caching cfqgs.
Pull in cgroup/for-3.5 into block/for-3.5/core. This causes the
following conflicts in block/blk-cgroup.c.
* 761b3ef50e "cgroup: remove cgroup_subsys argument from callbacks"
conflicts with blkiocg_pre_destroy() addition and blkiocg_attach()
removal. Resolved by removing @subsys from all subsys methods.
* 676f7c8f84 "cgroup: relocate cftype and cgroup_subsys definitions in
controllers" conflicts with ->pre_destroy() and ->attach() updates
and removal of modular config. Resolved by dropping forward
declarations of the methods and applying updates to the relocated
blkio_subsys.
* 4baf6e3325 "cgroup: convert all non-memcg controllers to the new
cftype interface" builds upon the previous item. Resolved by adding
->base_cftypes to the relocated blkio_subsys.
Signed-off-by: Tejun Heo <tj@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 000000000000..f096b80e73d8 --- /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 |