diff options
| author |   Ingo Molnar <mingo@kernel.org> | 2018-03-27 08:43:39 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2018-03-27 08:43:39 +0200 |
| commit | 0bc91d4ba77156ae9217d25ed7c434540f950d05 (patch) | |
| tree | 949c1acf27b106184d8842586740fbbcc9c9ea62 /mm/hugetlb.c | |
| parent | x86/mm: Remove pointless checks in vmalloc_fault (diff) | |
| parent | Linux 4.16-rc7 (diff) | |
| download | wireguard-linux-0bc91d4ba77156ae9217d25ed7c434540f950d05.tar.xz wireguard-linux-0bc91d4ba77156ae9217d25ed7c434540f950d05.zip | |
Merge tag 'v4.16-rc7' into x86/mm, to fix up conflict
Conflicts:
arch/x86/mm/init_64.c
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'mm/hugetlb.c')
| -rw-r--r-- | mm/hugetlb.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mm/hugetlb.c b/mm/hugetlb.c index a963f2034dfc..976bbc5646fe 100644 --- a/mm/hugetlb.c +++ b/mm/hugetlb.c @@ -18,6 +18,7 @@ #include <linux/bootmem.h> #include <linux/sysfs.h> #include <linux/slab.h> +#include <linux/mmdebug.h> #include <linux/sched/signal.h> #include <linux/rmap.h> #include <linux/string_helpers.h> @@ -4374,6 +4375,12 @@ int hugetlb_reserve_pages(struct inode *inode, struct resv_map *resv_map; long gbl_reserve; + /* This should never happen */ + if (from > to) { + VM_WARN(1, "%s called with a negative range\n", __func__); + return -EINVAL; + } + /* * Only apply hugepage reservation if asked. At fault time, an * attempt will be made for VM_NORESERVE to allocate a page |