#include <linux/string.h>
#include <linux/list.h>
#include <linux/sched.h>
+#include <linux/spinlock.h>
#include <linux/coda.h>
#include <linux/coda_linux.h>
{
struct coda_inode_info *cii = ITOC(inode);
+ spin_lock(&cii->c_lock);
cii->c_cached_epoch = atomic_read(&permission_epoch);
- if (cii->c_uid != current->fsuid) {
- cii->c_uid = current->fsuid;
+ if (cii->c_uid != current_fsuid()) {
+ cii->c_uid = current_fsuid();
cii->c_cached_perm = mask;
} else
cii->c_cached_perm |= mask;
+ spin_unlock(&cii->c_lock);
}
/* remove cached acl from an inode */
void coda_cache_clear_inode(struct inode *inode)
{
struct coda_inode_info *cii = ITOC(inode);
+ spin_lock(&cii->c_lock);
cii->c_cached_epoch = atomic_read(&permission_epoch) - 1;
+ spin_unlock(&cii->c_lock);
}
/* remove all acl caches */
int coda_cache_check(struct inode *inode, int mask)
{
struct coda_inode_info *cii = ITOC(inode);
- int hit;
+ int hit;
- hit = (mask & cii->c_cached_perm) == mask &&
- cii->c_uid == current->fsuid &&
- cii->c_cached_epoch == atomic_read(&permission_epoch);
+ spin_lock(&cii->c_lock);
+ hit = (mask & cii->c_cached_perm) == mask &&
+ cii->c_uid == current_fsuid() &&
+ cii->c_cached_epoch == atomic_read(&permission_epoch);
+ spin_unlock(&cii->c_lock);
- return hit;
+ return hit;
}