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authorIngo Molnar <mingo@elte.hu>2009-09-04 11:28:52 +0400
committerIngo Molnar <mingo@elte.hu>2009-09-04 11:29:05 +0400
commit29e2035bddecce3eb584a8304528b50da8370a24 (patch)
tree13155df7d90a8e287b83a1cd6c0d02c3018212ab /fs/hugetlbfs/inode.c
parent868489660dabc0c28087cca3dbc1adbbc398c6fe (diff)
parent37d0892c5a94e208cf863e3b7bac014edee4346d (diff)
downloadlinux-29e2035bddecce3eb584a8304528b50da8370a24.tar.xz
Merge branch 'linus' into core/rcu
Merge reason: Avoid fuzz in init/main.c and update from rc6 to rc8. Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'fs/hugetlbfs/inode.c')
-rw-r--r--fs/hugetlbfs/inode.c20
1 files changed, 12 insertions, 8 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 941c8425c10b..cb88dac8ccaa 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -935,26 +935,28 @@ static int can_do_hugetlb_shm(void)
return capable(CAP_IPC_LOCK) || in_group_p(sysctl_hugetlb_shm_group);
}
-struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag)
+struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag,
+ struct user_struct **user)
{
int error = -ENOMEM;
- int unlock_shm = 0;
struct file *file;
struct inode *inode;
struct dentry *dentry, *root;
struct qstr quick_string;
- struct user_struct *user = current_user();
+ *user = NULL;
if (!hugetlbfs_vfsmount)
return ERR_PTR(-ENOENT);
if (!can_do_hugetlb_shm()) {
- if (user_shm_lock(size, user)) {
- unlock_shm = 1;
+ *user = current_user();
+ if (user_shm_lock(size, *user)) {
WARN_ONCE(1,
"Using mlock ulimits for SHM_HUGETLB deprecated\n");
- } else
+ } else {
+ *user = NULL;
return ERR_PTR(-EPERM);
+ }
}
root = hugetlbfs_vfsmount->mnt_root;
@@ -996,8 +998,10 @@ out_inode:
out_dentry:
dput(dentry);
out_shm_unlock:
- if (unlock_shm)
- user_shm_unlock(size, user);
+ if (*user) {
+ user_shm_unlock(size, *user);
+ *user = NULL;
+ }
return ERR_PTR(error);
}