kernel_samsung_sm7125

jenna

History

Christoph Lameter 62bc62a873 page allocator: use a pre-calculated value instead of num_online_nodes() in fast paths num_online_nodes() is called in a number of places but most often by the page allocator when deciding whether the zonelist needs to be filtered based on cpusets or the zonelist cache. This is actually a heavy function and touches a number of cache lines. This patch stores the number of online nodes at boot time and updates the value when nodes get onlined and offlined. The value is then used in a number of important paths in place of num_online_nodes(). [rientjes@google.com: do not override definition of node_set_online() with macro] Signed-off-by: Christoph Lameter <cl@linux-foundation.org> Signed-off-by: Mel Gorman <mel@csn.ul.ie> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Pekka Enberg <penberg@cs.helsinki.fi> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Dave Hansen <dave@linux.vnet.ibm.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com> Signed-off-by: David Rientjes <rientjes@google.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		16 years ago
..
auth_gss	sunrpc/auth_gss: Call rcu_barrier() on module unload.	16 years ago
xprtrdma	Merge branch 'for-2.6.30' of git://linux-nfs.org/~bfields/linux	16 years ago
Kconfig	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial	16 years ago
Makefile	…
auth.c	Merge branch 'devel' into next	16 years ago
auth_generic.c	…
auth_null.c	…
auth_unix.c	…
cache.c	proc 2/2: remove struct proc_dir_entry::owner	16 years ago
clnt.c	SUNRPC: Return EAGAIN instead of ENOTCONN when waking up xprt->pending	16 years ago
rpc_pipe.c	constify dentry_operations: rest	16 years ago
rpcb_clnt.c	SUNRPC: rpcb_register() should handle errors silently	16 years ago
sched.c	SUNRPC: Tighten up the task locking rules in __rpc_execute()	16 years ago
socklib.c	…
stats.c	proc 2/2: remove struct proc_dir_entry::owner	16 years ago
sunrpc_syms.c	…
svc.c	page allocator: use a pre-calculated value instead of num_online_nodes() in fast paths	16 years ago
svc_xprt.c	Merge branch 'for-2.6.30' of git://linux-nfs.org/~bfields/linux	16 years ago
svcauth.c	SUNRPC: The sunrpc server code should not be used by out-of-tree modules	16 years ago
svcauth_unix.c	SUNRPC: The sunrpc server code should not be used by out-of-tree modules	16 years ago
svcsock.c	nfsd: Revert "svcrpc: take advantage of tcp autotuning"	16 years ago
sysctl.c	…
timer.c	…
xdr.c	…
xprt.c	SUNRPC: Fix the problem of EADDRNOTAVAIL syslog floods on reconnect	16 years ago
xprtsock.c	net: skb->dst accessors	16 years ago