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| author | Joseph Myers <joseph@codesourcery.com> | 2019-11-29 14:17:15 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2019-11-29 14:17:15 +0000 |
| commit | 96958e2700f5b4f4d1183a0606b2b9848a53ea44 (patch) | |
| tree | a5b2ab875729ccbf923f61a2d554b92231147295 | |
| parent | a331150af65477fc3fa72ab341eed5e0b2daf7f3 (diff) | |
| download | glibc-96958e2700f5b4f4d1183a0606b2b9848a53ea44.tar.gz glibc-96958e2700f5b4f4d1183a0606b2b9848a53ea44.tar.xz glibc-96958e2700f5b4f4d1183a0606b2b9848a53ea44.zip | |
Update SOMAXCONN value from Linux 5.4.
Linux 5.4 changes the SOMAXCONN value from 128 to 4096 (this isn't in a uapi header; various constants related to the kernel/userspace interface, including this one, are in the non-uapi linux/socket.h header). This patch increases the value in glibc. As I understand it, it is safe to use a higher value even with older kernels (the kernel will simply adjust the value passed to listen to be no more than the value supported in the kernel), and SOMAXCONN is actually only a default for a sysctl value in the kernel that can be changed at runtime. So I think updating the value in glibc is a reasonable and safe thing to do. Tested for x86_64.
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/socket.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/socket.h b/sysdeps/unix/sysv/linux/bits/socket.h index 3e88d66328..7537a7e86b 100644 --- a/sysdeps/unix/sysv/linux/bits/socket.h +++ b/sysdeps/unix/sysv/linux/bits/socket.h @@ -169,7 +169,7 @@ typedef __socklen_t socklen_t; #define SOL_XDP 283 /* Maximum queue length specifiable by listen. */ -#define SOMAXCONN 128 +#define SOMAXCONN 4096 /* Get the definition of the macro to define the common sockaddr members. */ #include <bits/sockaddr.h> |