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[Qemu-devel] [PULL v2 05/40] event_notifier: Make event_notifier_init_fd
From: |
Markus Armbruster |
Subject: |
[Qemu-devel] [PULL v2 05/40] event_notifier: Make event_notifier_init_fd() #ifdef CONFIG_EVENTFD |
Date: |
Mon, 21 Mar 2016 21:43:28 +0100 |
Event notifiers are designed for eventfd(2). They can fall back to
pipes, but according to Paolo, event_notifier_init_fd() really
requires the real thing, and should therefore be under #ifdef
CONFIG_EVENTFD. Do that.
Its only user is ivshmem, which is currently CONFIG_POSIX. Narrow it
to CONFIG_EVENTFD.
Cc: Paolo Bonzini <address@hidden>
Signed-off-by: Markus Armbruster <address@hidden>
Reviewed-by: Paolo Bonzini <address@hidden>
Message-Id: <address@hidden>
---
default-configs/pci.mak | 2 +-
tests/Makefile | 2 +-
util/event_notifier-posix.c | 6 ++++++
3 files changed, 8 insertions(+), 2 deletions(-)
diff --git a/default-configs/pci.mak b/default-configs/pci.mak
index 4fa9a28..9c8bc68 100644
--- a/default-configs/pci.mak
+++ b/default-configs/pci.mak
@@ -36,5 +36,5 @@ CONFIG_SDHCI=y
CONFIG_EDU=y
CONFIG_VGA=y
CONFIG_VGA_PCI=y
-CONFIG_IVSHMEM=$(CONFIG_POSIX)
+CONFIG_IVSHMEM=$(CONFIG_EVENTFD)
CONFIG_ROCKER=y
diff --git a/tests/Makefile b/tests/Makefile
index cd4bbd4..3cb951d 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -161,7 +161,7 @@ gcov-files-pci-y += hw/display/virtio-gpu-pci.c
gcov-files-pci-$(CONFIG_VIRTIO_VGA) += hw/display/virtio-vga.c
check-qtest-pci-y += tests/intel-hda-test$(EXESUF)
gcov-files-pci-y += hw/audio/intel-hda.c hw/audio/hda-codec.c
-check-qtest-pci-$(CONFIG_POSIX) += tests/ivshmem-test$(EXESUF)
+check-qtest-pci-$(CONFIG_EVENTFD) += tests/ivshmem-test$(EXESUF)
gcov-files-pci-y += hw/misc/ivshmem.c
check-qtest-i386-y = tests/endianness-test$(EXESUF)
diff --git a/util/event_notifier-posix.c b/util/event_notifier-posix.c
index 2e30e74..c9657a6 100644
--- a/util/event_notifier-posix.c
+++ b/util/event_notifier-posix.c
@@ -20,11 +20,17 @@
#include <sys/eventfd.h>
#endif
+#ifdef CONFIG_EVENTFD
+/*
+ * Initialize @e with existing file descriptor @fd.
+ * @fd must be a genuine eventfd object, emulation with pipe won't do.
+ */
void event_notifier_init_fd(EventNotifier *e, int fd)
{
e->rfd = fd;
e->wfd = fd;
}
+#endif
int event_notifier_init(EventNotifier *e, int active)
{
--
2.4.3
- [Qemu-devel] [PULL v2 00/40] ivshmem: Fixes, cleanups, device model split, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 12/40] ivshmem: Compile debug prints unconditionally to prevent bit-rot, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 04/40] qemu-doc: Fix ivshmem huge page example, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 13/40] ivshmem: Clean up after commit 9940c32, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 07/40] ivshmem-test: Improve test case /ivshmem/single, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 05/40] event_notifier: Make event_notifier_init_fd() #ifdef CONFIG_EVENTFD,
Markus Armbruster <=
- [Qemu-devel] [PULL v2 02/40] ivshmem-server: Fix and clean up command line help, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 08/40] ivshmem-test: Clean up wait for devices to become operational, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 18/40] ivshmem: Clean up register callbacks, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 17/40] ivshmem: Failed realize() can leave migration blocker behind, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 22/40] ivshmem: Simplify rejection of invalid peer ID from server, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 16/40] ivshmem: Fix harmless misuse of Error, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 34/40] qdev: New DEFINE_PROP_ON_OFF_AUTO, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 38/40] ivshmem: Drop ivshmem property x-memdev, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 06/40] tests/libqos/pci-pc: Fix qpci_pc_iomap() to map BARs aligned, Markus Armbruster, 2016/03/21
- [Qemu-devel] [PULL v2 11/40] ivshmem: Add missing newlines to debug printfs, Markus Armbruster, 2016/03/21