diff options
Diffstat (limited to 'mm/nommu.c')
| -rw-r--r-- | mm/nommu.c | 18 |
1 files changed, 15 insertions, 3 deletions
diff --git a/mm/nommu.c b/mm/nommu.c index db45efac17cc..029fadac0fb5 100644 --- a/mm/nommu.c +++ b/mm/nommu.c @@ -1147,14 +1147,26 @@ int __vm_enough_memory(long pages, int cap_sys_admin) * only call if we're about to fail. */ n = nr_free_pages(); + + /* + * Leave reserved pages. The pages are not for anonymous pages. + */ + if (n <= totalreserve_pages) + goto error; + else + n -= totalreserve_pages; + + /* + * Leave the last 3% for root + */ if (!cap_sys_admin) n -= n / 32; free += n; if (free > pages) return 0; - vm_unacct_memory(pages); - return -ENOMEM; + + goto error; } allowed = totalram_pages * sysctl_overcommit_ratio / 100; @@ -1175,7 +1187,7 @@ int __vm_enough_memory(long pages, int cap_sys_admin) */ if (atomic_read(&vm_committed_space) < (long)allowed) return 0; - +error: vm_unacct_memory(pages); return -ENOMEM; |