new package:

- add package ureadahead

packages/linux/patches/0001-trace-add-trace-events-for-open-exec-an.diff

@@ -0,0 +1,155 @@
+From ee9c0b591bf16ca11bb354bc68dae75a903f3a64 Mon Sep 17 00:00:00 2001
+From: Scott James Remnant <scott@ubuntu.com>
+Date: Tue, 27 Oct 2009 10:05:32 +0000
+Subject: [PATCH] trace: add trace events for open(), exec() and uselib()
+
+This patch uses TRACE_EVENT to add tracepoints for the open(),
+exec() and uselib() syscalls so that ureadahead can cheaply trace
+the boot sequence to determine what to read to speed up the next.
+
+It's not upstream because it will need to be rebased onto the syscall
+trace events whenever that gets merged, and is a stop-gap.
+
+Signed-off-by: Scott James Remnant <scott@ubuntu.com>
+---
+ fs/exec.c                 |    8 +++++
+ fs/open.c                 |    4 ++
+ include/trace/events/fs.h |   71 +++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 83 insertions(+), 0 deletions(-)
+ create mode 100644 include/trace/events/fs.h
+
+diff --git a/fs/exec.c b/fs/exec.c
+index 172ceb6..c936999 100644
+--- a/fs/exec.c
++++ b/fs/exec.c
+@@ -56,6 +56,8 @@
+ #include <linux/fsnotify.h>
+ #include <linux/fs_struct.h>
+ 
++#include <trace/events/fs.h>
++
+ #include <asm/uaccess.h>
+ #include <asm/mmu_context.h>
+ #include <asm/tlb.h>
+@@ -130,6 +132,10 @@ SYSCALL_DEFINE1(uselib, const char __user *, library)
+ 
+ 	fsnotify_open(file->f_path.dentry);
+ 
++	tmp = getname(library);
++	trace_uselib(tmp);
++	putname(library);
++
+ 	error = -ENOEXEC;
+ 	if(file->f_op) {
+ 		struct linux_binfmt * fmt;
+@@ -665,6 +671,8 @@ struct file *open_exec(const char *name)
+ 
+ 	fsnotify_open(file->f_path.dentry);
+ 
++	trace_open_exec(name);
++
+ 	err = deny_write_access(file);
+ 	if (err)
+ 		goto exit;
+diff --git a/fs/open.c b/fs/open.c
+index 04b9aad..41c87f3 100644
+--- a/fs/open.c
++++ b/fs/open.c
+@@ -31,6 +31,9 @@
+ #include <linux/falloc.h>
+ #include <linux/fs_struct.h>
+ 
++#define CREATE_TRACE_POINTS
++#include <trace/events/fs.h>
++
+ int vfs_statfs(struct dentry *dentry, struct kstatfs *buf)
+ {
+ 	int retval = -ENODEV;
+@@ -1041,6 +1044,7 @@ long do_sys_open(int dfd, const char __user *filename, int flags, int mode)
+ 			} else {
+ 				fsnotify_open(f->f_path.dentry);
+ 				fd_install(fd, f);
++				trace_do_sys_open(tmp, flags, mode);
+ 			}
+ 		}
+ 		putname(tmp);
+diff --git a/include/trace/events/fs.h b/include/trace/events/fs.h
+new file mode 100644
+index 0000000..e967c55
+--- /dev/null
++++ b/include/trace/events/fs.h
+@@ -0,0 +1,71 @@
++#undef TRACE_SYSTEM
++#define TRACE_SYSTEM fs
++
++#if !defined(_TRACE_FS_H) || defined(TRACE_HEADER_MULTI_READ)
++#define _TRACE_FS_H
++
++#include <linux/fs.h>
++#include <linux/tracepoint.h>
++
++TRACE_EVENT(do_sys_open,
++
++	TP_PROTO(char *filename, int flags, int mode),
++
++	TP_ARGS(filename, flags, mode),
++
++	TP_STRUCT__entry(
++		__string(	filename, filename		)
++		__field(	int, flags			)
++		__field(	int, mode			)
++	),
++
++	TP_fast_assign(
++		__assign_str(filename, filename);
++		__entry->flags = flags;
++		__entry->mode = mode;
++	),
++
++	TP_printk("\"%s\" %x %o",
++		  __get_str(filename), __entry->flags, __entry->mode)
++);
++
++TRACE_EVENT(uselib,
++
++	TP_PROTO(char *filename),
++
++	TP_ARGS(filename),
++
++	TP_STRUCT__entry(
++		__string(	filename, filename		)
++	),
++
++	TP_fast_assign(
++		__assign_str(filename, filename);
++	),
++
++	TP_printk("\"%s\"",
++		  __get_str(filename))
++);
++
++TRACE_EVENT(open_exec,
++
++	TP_PROTO(char *filename),
++
++	TP_ARGS(filename),
++
++	TP_STRUCT__entry(
++		__string(	filename, filename		)
++	),
++
++	TP_fast_assign(
++		__assign_str(filename, filename);
++	),
++
++	TP_printk("\"%s\"",
++		  __get_str(filename))
++);
++
++#endif /* _TRACE_FS_H */
++
++/* This part must be outside protection */
++#include <trace/define_trace.h>
+-- 
+1.6.3.3
+

packages/sysutils/ureadahead/build

@@ -0,0 +1,20 @@
+#!/bin/sh
+
+. config/options
+
+$SCRIPTS/build toolchain
+$SCRIPTS/build libnih
+$SCRIPTS/build e2fsprogs
+
+cd $PKG_BUILD
+EXT2FS_LIBS="-lext2fs -lcom_err" \
+./configure --host=$TARGET_NAME \
+            --build=$HOST_NAME \
+            --prefix=/usr \
+            --sysconfdir=/etc \
+            --datadir=/usr/share \
+            --localstatedir=/var \
+            --disable-static \
+            --enable-shared \
+
+make

packages/sysutils/ureadahead/init.d/07_ureadahead

@@ -0,0 +1,10 @@
+# start the ureadahead daemon
+#
+# runlevels: openelec, textmode
+
+(
+  progress "Starting ureadahead"
+
+  ureadahead --daemon --timeout=30 > /dev/null 2>&1
+
+)&

packages/sysutils/ureadahead/install

@@ -0,0 +1,6 @@
+#!/bin/sh
+
+. config/options
+
+mkdir -p $INSTALL/usr/sbin
+  cp -P $PKG_BUILD/src/ureadahead $INSTALL/usr/sbin

packages/sysutils/ureadahead/url

@@ -0,0 +1 @@
+http://sources.openelec.tv/svn/ureadahead-111.tar.bz2