Messages in this thread Patch in this message | | | From | youling 257 <> | Date | Thu, 4 Jun 2020 12:35:06 +0800 | Subject | Re: [PATCH v6 10/12] mmap locking API: rename mmap_sem to mmap_lock |
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I have build error about kernel/sys.c,
kernel/sys.c: In function ‘prctl_set_vma’:
kernel/sys.c:2392:18: error:
‘struct mm_struct’ has no member named ‘mmap_sem’; did you mean
‘mmap_base’?
2392 | down_write(&mm->mmap_sem);
| ^~~~~~~~
| mmap_base
kernel/sys.c:2402:16: error:
‘struct mm_struct’ has no member named ‘mmap_sem’; did you mean
‘mmap_base’?
2402 | up_write(&mm->mmap_sem);
| ^~~~~~~~
| mmap_base
why not rename kernel/sys.c mmap_sem to mmap_lock?
diff --git a/kernel/sys.c b/kernel/sys.c
index 113955fe1c6b..043c04a745a9 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -2389,7 +2389,7 @@ static int prctl_set_vma(unsigned long opt, unsigned long start,
if (end == start)
return 0;
- down_write(&mm->mmap_sem);
+ down_write(&mm->mmap_lock); switch (opt) { case PR_SET_VMA_ANON_NAME:
@@ -2399,7 +2399,7 @@ static int prctl_set_vma(unsigned long opt, unsigned long start,
error = -EINVAL;
} - up_write(&mm->mmap_sem);
+ up_write(&mm->mmap_lock);
return error;
}
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