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Merge tag 'perf-core-for-mingo-3' of git://git.kernel.org/pub/scm/linux/kernel/git...
[cascardo/linux.git]
/
mm
/
memory.c
diff --git
a/mm/memory.c
b/mm/memory.c
index
deb679c
..
c387430
100644
(file)
--- a/
mm/memory.c
+++ b/
mm/memory.c
@@
-3015,9
+3015,9
@@
static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma,
} else {
/*
* The fault handler has no page to lock, so it holds
} else {
/*
* The fault handler has no page to lock, so it holds
- * i_mmap_lock for
write
to protect against truncate.
+ * i_mmap_lock for
read
to protect against truncate.
*/
*/
- i_mmap_unlock_
write
(vma->vm_file->f_mapping);
+ i_mmap_unlock_
read
(vma->vm_file->f_mapping);
}
goto uncharge_out;
}
}
goto uncharge_out;
}
@@
-3031,9
+3031,9
@@
static int do_cow_fault(struct mm_struct *mm, struct vm_area_struct *vma,
} else {
/*
* The fault handler has no page to lock, so it holds
} else {
/*
* The fault handler has no page to lock, so it holds
- * i_mmap_lock for
write
to protect against truncate.
+ * i_mmap_lock for
read
to protect against truncate.
*/
*/
- i_mmap_unlock_
write
(vma->vm_file->f_mapping);
+ i_mmap_unlock_
read
(vma->vm_file->f_mapping);
}
return ret;
uncharge_out:
}
return ret;
uncharge_out: