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Diffstat (limited to 'net/ipv4/tcp.c')
-rw-r--r--net/ipv4/tcp.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 15d47d5e7951..1714fe20ec80 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1762,11 +1762,11 @@ static int tcp_zerocopy_receive(struct sock *sk,
sock_rps_record_flow(sk);
- down_read(&current->mm->mmap_sem);
+ mmap_read_lock(current->mm);
vma = find_vma(current->mm, address);
if (!vma || vma->vm_start > address || vma->vm_ops != &tcp_vm_ops) {
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
return -EINVAL;
}
zc->length = min_t(unsigned long, zc->length, vma->vm_end - address);
@@ -1827,7 +1827,7 @@ static int tcp_zerocopy_receive(struct sock *sk,
frags++;
}
out:
- up_read(&current->mm->mmap_sem);
+ mmap_read_unlock(current->mm);
if (length) {
WRITE_ONCE(tp->copied_seq, seq);
tcp_rcv_space_adjust(sk);