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authoraliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>2008-09-10 15:45:19 +0000
committeraliguori <aliguori@c046a42c-6fe2-441c-8c8c-71466251a162>2008-09-10 15:45:19 +0000
commitbaf35cb90204d75404892aa4e52628ae7a00669b (patch)
tree44d96418e4d0e90c5841692a29743022fbc107c1 /Makefile
parent279826619dfb36bac39d8549526a76eabb9d311e (diff)
Use signalfd() to work around signal/select race
This patch introduces signalfd() to work around the signal/select race in checking for AIO completions. For platforms that don't support signalfd(), we emulate it with threads. There was a long discussion about this approach. I don't believe there are any fundamental problems with this approach and I believe eliminating the use of signals is a good thing. I've tested Windows and Linux using Windows and Linux guests. I've also checked for disk IO performance regressions. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5187 c046a42c-6fe2-441c-8c8c-71466251a162
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile4
1 files changed, 2 insertions, 2 deletions
diff --git a/Makefile b/Makefile
index 9c219c3847..e6769001a8 100644
--- a/Makefile
+++ b/Makefile
@@ -177,7 +177,7 @@ QEMU_IMG_BLOCK_OBJS = $(BLOCK_OBJS)
ifdef CONFIG_WIN32
QEMU_IMG_BLOCK_OBJS += qemu-img-block-raw-win32.o
else
-QEMU_IMG_BLOCK_OBJS += nbd.o qemu-img-block-raw-posix.o
+QEMU_IMG_BLOCK_OBJS += nbd.o qemu-img-block-raw-posix.o compatfd.o
endif
######################################################################
@@ -195,7 +195,7 @@ qemu-nbd-%.o: %.c
$(CC) $(CFLAGS) $(CPPFLAGS) -DQEMU_NBD -c -o $@ $<
qemu-nbd$(EXESUF): qemu-nbd.o qemu-nbd-nbd.o qemu-img-block.o \
- osdep.o qemu-nbd-block-raw-posix.o $(BLOCK_OBJS)
+ osdep.o qemu-nbd-block-raw-posix.o compatfd.o $(BLOCK_OBJS)
$(CC) $(LDFLAGS) -o $@ $^ -lz $(LIBS)
# dyngen host tool