linux-kernel - [PATCH v10 03/15] tools/libperf: avoid counting of nonfilterable fdarray fds

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Date:   Wed, 8 Jul 2020 10:47:02 +0300
From:   Alexey Budankov <alexey.budankov@...ux.intel.com>
To:     Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>
Cc:     Namhyung Kim <namhyung@...nel.org>,
        Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>,
        Andi Kleen <ak@...ux.intel.com>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: [PATCH v10 03/15] tools/libperf: avoid counting of nonfilterable
 fdarray fds


Avoid counting of struct pollfd *entries objects with
fdarray_flag__nonfilterable flag by fdarray__filter().
Nonfilterable objects are still processed if requested
events have been signaled for them.

Signed-off-by: Alexey Budankov <alexey.budankov@...ux.intel.com>
---
 tools/lib/api/fd/array.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/lib/api/fd/array.c b/tools/lib/api/fd/array.c
index 37f291e6fc21..d638484c4bbd 100644
--- a/tools/lib/api/fd/array.c
+++ b/tools/lib/api/fd/array.c
@@ -105,7 +105,8 @@ int fdarray__filter(struct fdarray *fda, short revents,
 			continue;
 		}
 
-		++nr;
+		if (!(fda->priv[fd].flags & fdarray_flag__nonfilterable))
+			++nr;
 	}
 
 	return nr;
-- 
2.24.1