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authorJoseph Qi <joseph.qi@linux.alibaba.com>2021-04-29 22:54:05 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2021-04-30 11:20:35 -0700
commitf9630ec9d9e6c31e5c17dda4cbca53c504604cce (patch)
tree5456c9bc2d5edbf9bc3c6d2ebd5beba8a750fea5 /fs/ocfs2
parent1634852df7f0cc1223e454de2d1ad2786e0aa9f3 (diff)
downloadlinux-f9630ec9d9e6c31e5c17dda4cbca53c504604cce.tar.gz
ocfs2: map flags directly in flags_to_o2dlm()
Use macro map_flag() is tricky and coccicheck outputs the following
warning:

  fs/ocfs2/stack_o2cb.c:69:5-16: Unneeded variable: "o2dlm_flags"

So map flags directly in flags_to_o2dlm() to make coccicheck happy.
And remove BUG_ON() here as well to simplify code since it runs well
a long time.

Link: https://lkml.kernel.org/r/1616138664-35935-1-git-send-email-joseph.qi@linux.alibaba.com
Signed-off-by: Joseph Qi <joseph.qi@linux.alibaba.com>
Reviewed-by: Wengang Wang <wen.gang.wang@oracle.com>
Cc: Mark Fasheh <mark@fasheh.com>
Cc: Joel Becker <jlbec@evilplan.org>
Cc: Junxiao Bi <junxiao.bi@oracle.com>
Cc: Changwei Ge <gechangwei@live.cn>
Cc: Gang He <ghe@suse.com>
Cc: Jun Piao <piaojun@huawei.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/ocfs2')
-rw-r--r--fs/ocfs2/stack_o2cb.c36
1 files changed, 18 insertions, 18 deletions
diff --git a/fs/ocfs2/stack_o2cb.c b/fs/ocfs2/stack_o2cb.c
index dbf8b5735808..f70012038383 100644
--- a/fs/ocfs2/stack_o2cb.c
+++ b/fs/ocfs2/stack_o2cb.c
@@ -59,31 +59,31 @@ static inline int mode_to_o2dlm(int mode)
 	return mode;
 }
 
-#define map_flag(_generic, _o2dlm)		\
-	if (flags & (_generic)) {		\
-		flags &= ~(_generic);		\
-		o2dlm_flags |= (_o2dlm);	\
-	}
 static int flags_to_o2dlm(u32 flags)
 {
 	int o2dlm_flags = 0;
 
-	map_flag(DLM_LKF_NOQUEUE, LKM_NOQUEUE);
-	map_flag(DLM_LKF_CANCEL, LKM_CANCEL);
-	map_flag(DLM_LKF_CONVERT, LKM_CONVERT);
-	map_flag(DLM_LKF_VALBLK, LKM_VALBLK);
-	map_flag(DLM_LKF_IVVALBLK, LKM_INVVALBLK);
-	map_flag(DLM_LKF_ORPHAN, LKM_ORPHAN);
-	map_flag(DLM_LKF_FORCEUNLOCK, LKM_FORCE);
-	map_flag(DLM_LKF_TIMEOUT, LKM_TIMEOUT);
-	map_flag(DLM_LKF_LOCAL, LKM_LOCAL);
-
-	/* map_flag() should have cleared every flag passed in */
-	BUG_ON(flags != 0);
+	if (flags & DLM_LKF_NOQUEUE)
+		o2dlm_flags |= LKM_NOQUEUE;
+	if (flags & DLM_LKF_CANCEL)
+		o2dlm_flags |= LKM_CANCEL;
+	if (flags & DLM_LKF_CONVERT)
+		o2dlm_flags |= LKM_CONVERT;
+	if (flags & DLM_LKF_VALBLK)
+		o2dlm_flags |= LKM_VALBLK;
+	if (flags & DLM_LKF_IVVALBLK)
+		o2dlm_flags |= LKM_INVVALBLK;
+	if (flags & DLM_LKF_ORPHAN)
+		o2dlm_flags |= LKM_ORPHAN;
+	if (flags & DLM_LKF_FORCEUNLOCK)
+		o2dlm_flags |= LKM_FORCE;
+	if (flags & DLM_LKF_TIMEOUT)
+		o2dlm_flags |= LKM_TIMEOUT;
+	if (flags & DLM_LKF_LOCAL)
+		o2dlm_flags |= LKM_LOCAL;
 
 	return o2dlm_flags;
 }
-#undef map_flag
 
 /*
  * Map an o2dlm status to standard errno values.