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Diffstat (limited to 'fs')
-rw-r--r--fs/hugetlbfs/inode.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index bc56df8ce00..23a3c76711e 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -949,6 +949,7 @@ static int can_do_hugetlb_shm(void)
struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag)
{
int error = -ENOMEM;
+ int unlock_shm = 0;
struct file *file;
struct inode *inode;
struct dentry *dentry, *root;
@@ -958,8 +959,14 @@ struct file *hugetlb_file_setup(const char *name, size_t size, int acctflag)
if (!hugetlbfs_vfsmount)
return ERR_PTR(-ENOENT);
- if (!can_do_hugetlb_shm())
- return ERR_PTR(-EPERM);
+ if (!can_do_hugetlb_shm()) {
+ if (user_shm_lock(size, user)) {
+ unlock_shm = 1;
+ WARN_ONCE(1,
+ "Using mlock ulimits for SHM_HUGETLB deprecated\n");
+ } else
+ return ERR_PTR(-EPERM);
+ }
root = hugetlbfs_vfsmount->mnt_root;
quick_string.name = name;
@@ -999,6 +1006,8 @@ out_inode:
out_dentry:
dput(dentry);
out_shm_unlock:
+ if (unlock_shm)
+ user_shm_unlock(size, user);
return ERR_PTR(error);
}