[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Xen-devel] [PATCH 3/6] libxl: events: Deregister, don't just modify, sigchld pipe fd



We want to have no fd events registered when we are idle.  This
implies that we must be able to deregister our interest in the sigchld
self-pipe fd, not just modify to request no events.

Signed-off-by: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
---
 tools/libxl/libxl_fork.c |    9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/tools/libxl/libxl_fork.c b/tools/libxl/libxl_fork.c
index fa15095..144208a 100644
--- a/tools/libxl/libxl_fork.c
+++ b/tools/libxl/libxl_fork.c
@@ -372,15 +372,8 @@ static void sigchld_user_remove(libxl_ctx *ctx) /* 
idempotent */
 
 void libxl__sigchld_notneeded(libxl__gc *gc) /* non-reentrant, idempotent */
 {
-    int rc;
-
     sigchld_user_remove(CTX);
-
-    if (libxl__ev_fd_isregistered(&CTX->sigchld_selfpipe_efd)) {
-        rc = libxl__ev_fd_modify(gc, &CTX->sigchld_selfpipe_efd, 0);
-        if (rc)
-            libxl__ev_fd_deregister(gc, &CTX->sigchld_selfpipe_efd);
-    }
+    libxl__ev_fd_deregister(gc, &CTX->sigchld_selfpipe_efd);
 }
 
 int libxl__sigchld_needed(libxl__gc *gc) /* non-reentrant, idempotent */
-- 
1.7.10.4


_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel


 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.