diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/compaction.c | 2 | ||||
| -rw-r--r-- | mm/fremap.c | 2 | ||||
| -rw-r--r-- | mm/huge_memory.c | 1 | ||||
| -rw-r--r-- | mm/mempolicy.c | 5 |
4 files changed, 5 insertions, 5 deletions
diff --git a/mm/compaction.c b/mm/compaction.c index 2c4ce17651d8..9eef55838fca 100644 --- a/mm/compaction.c +++ b/mm/compaction.c @@ -346,7 +346,7 @@ static unsigned long isolate_freepages_block(struct compact_control *cc, * pages requested were isolated. If there were any failures, 0 is * returned and CMA will fail. */ - if (strict && nr_strict_required != total_isolated) + if (strict && nr_strict_required > total_isolated) total_isolated = 0; if (locked) diff --git a/mm/fremap.c b/mm/fremap.c index 3899a86851ce..a0aaf0e56800 100644 --- a/mm/fremap.c +++ b/mm/fremap.c @@ -169,7 +169,7 @@ SYSCALL_DEFINE5(remap_file_pages, unsigned long, start, unsigned long, size, if (vma->vm_private_data && !(vma->vm_flags & VM_NONLINEAR)) goto out; - if (!vma->vm_ops->remap_pages) + if (!vma->vm_ops || !vma->vm_ops->remap_pages) goto out; if (start < vma->vm_start || start + size > vma->vm_end) diff --git a/mm/huge_memory.c b/mm/huge_memory.c index a863af26c79c..40f17c34b415 100644 --- a/mm/huge_memory.c +++ b/mm/huge_memory.c @@ -17,6 +17,7 @@ #include <linux/khugepaged.h> #include <linux/freezer.h> #include <linux/mman.h> +#include <linux/pagemap.h> #include <asm/tlb.h> #include <asm/pgalloc.h> #include "internal.h" diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 0b78fb9ea65b..d04a8a54c294 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1536,9 +1536,8 @@ asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len, * * Returns effective policy for a VMA at specified address. * Falls back to @task or system default policy, as necessary. - * Current or other task's task mempolicy and non-shared vma policies - * are protected by the task's mmap_sem, which must be held for read by - * the caller. + * Current or other task's task mempolicy and non-shared vma policies must be + * protected by task_lock(task) by the caller. * Shared policies [those marked as MPOL_F_SHARED] require an extra reference * count--added by the get_policy() vm_op, as appropriate--to protect against * freeing by another task. It is the caller's responsibility to free the |