Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

[cascardo/linux.git] / kernel / events / uprobes.c

diff --git a/kernel/events/uprobes.c b/kernel/events/uprobes.c
index d2a5689..cb346f2 100644 (file)
--- a/kernel/events/uprobes.c
+++ b/kernel/events/uprobes.c
@@ -724,14 +724,14 @@ build_map_info(struct address_space *mapping, loff_t offset, bool is_register)
        int more = 0;
 
  again:
-       mutex_lock(&mapping->i_mmap_mutex);
+       i_mmap_lock_read(mapping);
        vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
                if (!valid_vma(vma, is_register))
                        continue;
 
                if (!prev && !more) {
                        /*
-                        * Needs GFP_NOWAIT to avoid i_mmap_mutex recursion through
+                        * Needs GFP_NOWAIT to avoid i_mmap_rwsem recursion through
                         * reclaim. This is optimistic, no harm done if it fails.
                         */
                        prev = kmalloc(sizeof(struct map_info),
@@ -755,7 +755,7 @@ build_map_info(struct address_space *mapping, loff_t offset, bool is_register)
                info->mm = vma->vm_mm;
                info->vaddr = offset_to_vaddr(vma, offset);
        }
-       mutex_unlock(&mapping->i_mmap_mutex);
+       i_mmap_unlock_read(mapping);
 
        if (!more)
                goto out;