From: Emilio G. Cota <cota@braap.org>
Date: Sat, 18 Aug 2018 04:25:12 +0000 (-0400)
Subject: seqlock: constify seqlock_read_begin
X-Git-Tag: qemu-xen-4.13.0-rc1~689^2~52
X-Git-Url: http://xenbits.xensource.com/gitweb?a=commitdiff_plain;h=c04649eeeaf5f84ba9e43d0c4ffbe1719b0d940c;p=qemu-xen.git

seqlock: constify seqlock_read_begin

Signed-off-by: Emilio G. Cota <cota@braap.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/include/qemu/seqlock.h b/include/qemu/seqlock.h
index 8dee11d101..c367516708 100644
--- a/include/qemu/seqlock.h
+++ b/include/qemu/seqlock.h
@@ -45,7 +45,7 @@ static inline void seqlock_write_end(QemuSeqLock *sl)
     atomic_set(&sl->sequence, sl->sequence + 1);
 }
 
-static inline unsigned seqlock_read_begin(QemuSeqLock *sl)
+static inline unsigned seqlock_read_begin(const QemuSeqLock *sl)
 {
     /* Always fail if a write is in progress.  */
     unsigned ret = atomic_read(&sl->sequence);