diff options
Diffstat (limited to 'ipc/shm.c')
| -rw-r--r-- | ipc/shm.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/ipc/shm.c b/ipc/shm.c index dca90489e3b..587d836d80d 100644 --- a/ipc/shm.c +++ b/ipc/shm.c @@ -212,8 +212,16 @@ static int newseg (key_t key, int shmflg, size_t size) file = hugetlb_zero_setup(size); shp->mlock_user = current->user; } else { + int acctflag = VM_ACCOUNT; + /* + * Do not allow no accounting for OVERCOMMIT_NEVER, even + * if it's asked for. + */ + if ((shmflg & SHM_NORESERVE) && + sysctl_overcommit_memory != OVERCOMMIT_NEVER) + acctflag = 0; sprintf (name, "SYSV%08x", key); - file = shmem_file_setup(name, size, VM_ACCOUNT); + file = shmem_file_setup(name, size, acctflag); } error = PTR_ERR(file); if (IS_ERR(file)) @@ -233,10 +241,11 @@ static int newseg (key_t key, int shmflg, size_t size) shp->id = shm_buildid(id,shp->shm_perm.seq); shp->shm_file = file; file->f_dentry->d_inode->i_ino = shp->id; - if (shmflg & SHM_HUGETLB) - set_file_hugepages(file); - else + + /* Hugetlb ops would have already been assigned. */ + if (!(shmflg & SHM_HUGETLB)) file->f_op = &shm_file_operations; + shm_tot += numpages; shm_unlock(shp); return shp->id; |