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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-06-14 18:08:46 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-06-14 18:08:46 +0200 |
| commit | fd6b99fa41ddee9699cff1d0e04e90afa452b24d (patch) | |
| tree | 6816c8b91ffd00556cbe61f6602af31a458377b1 /mm/mlock.c | |
| parent | Merge tag 'iommu-fixes-v5.2-rc4' of git://git.kernel.org/pub/scm/linux/kernel... (diff) | |
| parent | mm/devm_memremap_pages: fix final page put race (diff) | |
| download | linux-fd6b99fa41ddee9699cff1d0e04e90afa452b24d.tar.xz linux-fd6b99fa41ddee9699cff1d0e04e90afa452b24d.zip | |
Merge branch 'akpm' (patches from Andrew)
Merge misc fixes from Andrew Morton:
"16 fixes"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>:
mm/devm_memremap_pages: fix final page put race
PCI/P2PDMA: track pgmap references per resource, not globally
lib/genalloc: introduce chunk owners
PCI/P2PDMA: fix the gen_pool_add_virt() failure path
mm/devm_memremap_pages: introduce devm_memunmap_pages
drivers/base/devres: introduce devm_release_action()
mm/vmscan.c: fix trying to reclaim unevictable LRU page
coredump: fix race condition between collapse_huge_page() and core dumping
mm/mlock.c: change count_mm_mlocked_page_nr return type
mm: mmu_gather: remove __tlb_reset_range() for force flush
fs/ocfs2: fix race in ocfs2_dentry_attach_lock()
mm/vmscan.c: fix recent_rotated history
mm/mlock.c: mlockall error for flag MCL_ONFAULT
scripts/decode_stacktrace.sh: prefix addr2line with $CROSS_COMPILE
mm/list_lru.c: fix memory leak in __memcg_init_list_lru_node
mm: memcontrol: don't batch updates of local VM stats and events
Diffstat (limited to 'mm/mlock.c')
| -rw-r--r-- | mm/mlock.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/mm/mlock.c b/mm/mlock.c index 080f3b36415b..a90099da4fb4 100644 --- a/mm/mlock.c +++ b/mm/mlock.c @@ -636,11 +636,11 @@ static int apply_vma_lock_flags(unsigned long start, size_t len, * is also counted. * Return value: previously mlocked page counts */ -static int count_mm_mlocked_page_nr(struct mm_struct *mm, +static unsigned long count_mm_mlocked_page_nr(struct mm_struct *mm, unsigned long start, size_t len) { struct vm_area_struct *vma; - int count = 0; + unsigned long count = 0; if (mm == NULL) mm = current->mm; @@ -797,7 +797,8 @@ SYSCALL_DEFINE1(mlockall, int, flags) unsigned long lock_limit; int ret; - if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT))) + if (!flags || (flags & ~(MCL_CURRENT | MCL_FUTURE | MCL_ONFAULT)) || + flags == MCL_ONFAULT) return -EINVAL; if (!can_do_mlock()) |