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[PATCH] Access Control Lists for tmpfs

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Add access control lists for tmpfs.

Signed-off-by: Andreas Gruenbacher <agruen@suse.de>
Cc: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andreas Gruenbacher 2006-09-29 02:01:35 -07:00 • committed by Linus Torvalds
parent f0c8bd164e
commit 39f0247d38
5 changed files with 332 additions and 2 deletions
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24
include/linux/shmem_fs.h
View file

@ -19,6 +19,10 @@ struct shmem_inode_info {
swp_entry_t i_direct[SHMEM_NR_DIRECT]; /* first blocks */
struct list_head swaplist; /* chain of maybes on swap */
struct inode vfs_inode;
#ifdef CONFIG_TMPFS_POSIX_ACL
struct posix_acl *i_acl;
struct posix_acl *i_default_acl;
#endif
};
struct shmem_sb_info {
@ -36,4 +40,24 @@ static inline struct shmem_inode_info *SHMEM_I(struct inode *inode)
return container_of(inode, struct shmem_inode_info, vfs_inode);
}
#ifdef CONFIG_TMPFS_POSIX_ACL
int shmem_permission(struct inode *, int, struct nameidata *);
int shmem_acl_init(struct inode *, struct inode *);
void shmem_acl_destroy_inode(struct inode *);
extern struct xattr_handler shmem_xattr_acl_access_handler;
extern struct xattr_handler shmem_xattr_acl_default_handler;
extern struct generic_acl_operations shmem_acl_ops;
#else
static inline int shmem_acl_init(struct inode *inode, struct inode *dir)
{
return 0;
}
static inline void shmem_acl_destroy_inode(struct inode *inode)
{
}
#endif /* CONFIG_TMPFS_POSIX_ACL */
#endif