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fs: provide rcu-walk aware permission i_ops

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Signed-off-by: Nick Piggin <[email protected]>
This commit is contained in:
Nick Piggin 2011-01-07 17:49:58 +11:00
commit b74c79e993
60 changed files with 287 additions and 146 deletions
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2
fs/afs/internal.h
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@ -624,7 +624,7 @@ extern void afs_clear_permits(struct afs_vnode *);
extern void afs_cache_permit(struct afs_vnode *, struct key *, long);
extern void afs_zap_permits(struct rcu_head *);
extern struct key *afs_request_key(struct afs_cell *);
extern int afs_permission(struct inode *, int);
extern int afs_permission(struct inode *, int, unsigned int);
/*
* server.c

7
fs/afs/security.c
View file

@ -285,13 +285,16 @@ static int afs_check_permit(struct afs_vnode *vnode, struct key *key,
* - AFS ACLs are attached to directories only, and a file is controlled by its
* parent directory's ACL
*/
int afs_permission(struct inode *inode, int mask)
int afs_permission(struct inode *inode, int mask, unsigned int flags)
{
struct afs_vnode *vnode = AFS_FS_I(inode);
afs_access_t uninitialized_var(access);
struct key *key;
int ret;
if (flags & IPERM_FLAG_RCU)
return -ECHILD;
_enter("{{%x:%u},%lx},%x,",
vnode->fid.vid, vnode->fid.vnode, vnode->flags, mask);
@ -347,7 +350,7 @@ int afs_permission(struct inode *inode, int mask)
}
key_put(key);
ret = generic_permission(inode, mask, NULL);
ret = generic_permission(inode, mask, flags, NULL);
_leave(" = %d", ret);
return ret;