Fix udev on alpha, parisc, and probably sparc/sparc64

Fix udev on alpha, parisc, and probably sparc/sparc64

[Kyle McMartin]

This fixes udev on, at least, parisc (tested), on Debian. I
recently ran into the bug where any SMP kernel would cause
the initial hotplug event deluge to run out of buffer space. Looking
more deeply into it, the reason is the sock_setsockopts
SO_RCVBUFFORCE clause was being missed completely. I suspect this
is because SO_RCVBUFFORCE is a recent addition to the kernel (first 
I can find is 2005-08-29) and linux-kernel-headers hasn't been
revved since 2.6.13ish on Debian, and Patrick's patch arrived after
2.6.13 released.

Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>

---
diff --git a/udev_libc_wrapper.h b/udev_libc_wrapper.h
index a4d320f..53390a2 100644
--- a/udev_libc_wrapper.h
+++ b/udev_libc_wrapper.h
@@ -135,8 +135,15 @@ static inline int inotify_add_watch(int 
 #endif
 
 #ifndef SO_RCVBUFFORCE
+/* Some architectures use a different value for compatibility with
+ * other Unix.
+ */
+#if defined(__alpha__) || defined(__hppa__) || defined(__sparc__) || defined(__sparc_v9__)
+#define SO_RCVBUFFORCE 0x100b
+#else
 #define SO_RCVBUFFORCE 33
 #endif
+#endif
 
 extern uid_t lookup_user(const char *user);
 extern gid_t lookup_group(const char *group);


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Re: Fix udev on alpha, parisc, and probably sparc/sparc64

[Kay Sievers]

On Fri, Feb 17, 2006 at 12:15:05PM -0500, Kyle McMartin wrote:
> This fixes udev on, at least, parisc (tested)

> +#if defined(__alpha__) || defined(__hppa__) || defined(__sparc__) || defined(__sparc_v9__)
> +#define SO_RCVBUFFORCE 0x100b
> +#else
>  #define SO_RCVBUFFORCE 33
>  #endif
> +#endif

Applied!

Thanks,
Kay


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