diff options
| -rw-r--r-- | kernel/events/uprobes.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c index bb30a4fc5050..c08a22d02f72 100644 --- a/kernel/events/uprobes.c +++ b/kernel/events/uprobes.c @@ -32,6 +32,7 @@ #include <linux/swap.h> /* try_to_free_swap */ #include <linux/ptrace.h> /* user_enable_single_step */ #include <linux/kdebug.h> /* notifier mechanism */ +#include "../../mm/internal.h" /* munlock_vma_page */ #include <linux/uprobes.h> @@ -141,7 +142,7 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr, pte_t *ptep; int err; - /* freeze PageSwapCache() for try_to_free_swap() below */ + /* For try_to_free_swap() and munlock_vma_page() below */ lock_page(page); err = -EAGAIN; @@ -164,9 +165,12 @@ static int __replace_page(struct vm_area_struct *vma, unsigned long addr, page_remove_rmap(page); if (!page_mapped(page)) try_to_free_swap(page); - put_page(page); pte_unmap_unlock(ptep, ptl); + if (vma->vm_flags & VM_LOCKED) + munlock_vma_page(page); + put_page(page); + err = 0; unlock: unlock_page(page); |