diff options
Diffstat (limited to 'meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.29-fast-initrd.patch')
-rw-r--r-- | meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.29-fast-initrd.patch | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.29-fast-initrd.patch b/meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.29-fast-initrd.patch deleted file mode 100644 index ea4c617ed..000000000 --- a/meta-moblin/packages/linux/linux-moblin-2.6.29.1/linux-2.6.29-fast-initrd.patch +++ /dev/null @@ -1,161 +0,0 @@ -From 24559ecf972ff482222f6fc152f15468d2380e2d Mon Sep 17 00:00:00 2001 -From: Li, Shaohua <shaohua.li@intel.com> -Date: Wed, 13 Aug 2008 17:26:01 +0800 -Subject: [PATCH] fastboot: remove duplicate unpack_to_rootfs() - -we check if initrd is initramfs first and then do real unpack. The -check isn't required, we can directly do unpack. If initrd isn't -initramfs, we can remove garbage. In my laptop, this saves 0.1s boot -time. This penalizes non-initramfs case, but now initramfs is mostly -widely used. - -Signed-off-by: Shaohua Li <shaohua.li@intel.com> -Acked-by: Arjan van de Ven <arjan@infradead.org> -Signed-off-by: Ingo Molnar <mingo@elte.hu> ---- - init/initramfs.c | 71 ++++++++++++++++++++++++++++++++++++++++++----------- - 1 files changed, 56 insertions(+), 15 deletions(-) - -diff --git a/init/initramfs.c b/init/initramfs.c -index 4f5ba75..6b5c1dc 100644 ---- a/init/initramfs.c -+++ b/init/initramfs.c -@@ -5,6 +5,7 @@ - #include <linux/fcntl.h> - #include <linux/delay.h> - #include <linux/string.h> -+#include <linux/dirent.h> - #include <linux/syscalls.h> - #include <linux/utime.h> - -@@ -166,8 +167,6 @@ static __initdata char *victim; - static __initdata unsigned count; - static __initdata loff_t this_header, next_header; - --static __initdata int dry_run; -- - static inline void __init eat(unsigned n) - { - victim += n; -@@ -229,10 +228,6 @@ static int __init do_header(void) - parse_header(collected); - next_header = this_header + N_ALIGN(name_len) + body_len; - next_header = (next_header + 3) & ~3; -- if (dry_run) { -- read_into(name_buf, N_ALIGN(name_len), GotName); -- return 0; -- } - state = SkipIt; - if (name_len <= 0 || name_len > PATH_MAX) - return 0; -@@ -303,8 +298,6 @@ static int __init do_name(void) - free_hash(); - return 0; - } -- if (dry_run) -- return 0; - clean_path(collected, mode); - if (S_ISREG(mode)) { - int ml = maybe_link(); -@@ -475,10 +468,9 @@ static void __init flush_window(void) - outcnt = 0; - } - --static char * __init unpack_to_rootfs(char *buf, unsigned len, int check_only) -+static char * __init unpack_to_rootfs(char *buf, unsigned len) - { - int written; -- dry_run = check_only; - header_buf = kmalloc(110, GFP_KERNEL); - symlink_buf = kmalloc(PATH_MAX + N_ALIGN(PATH_MAX) + 1, GFP_KERNEL); - name_buf = kmalloc(N_ALIGN(PATH_MAX), GFP_KERNEL); -@@ -573,10 +565,57 @@ skip: - initrd_end = 0; - } - -+#define BUF_SIZE 1024 -+static void __init clean_rootfs(void) -+{ -+ int fd; -+ void *buf; -+ struct linux_dirent64 *dirp; -+ int count; -+ -+ fd = sys_open("/", O_RDONLY, 0); -+ WARN_ON(fd < 0); -+ if (fd < 0) -+ return; -+ buf = kzalloc(BUF_SIZE, GFP_KERNEL); -+ WARN_ON(!buf); -+ if (!buf) { -+ sys_close(fd); -+ return; -+ } -+ -+ dirp = buf; -+ count = sys_getdents64(fd, dirp, BUF_SIZE); -+ while (count > 0) { -+ while (count > 0) { -+ struct stat st; -+ int ret; -+ -+ ret = sys_newlstat(dirp->d_name, &st); -+ WARN_ON_ONCE(ret); -+ if (!ret) { -+ if (S_ISDIR(st.st_mode)) -+ sys_rmdir(dirp->d_name); -+ else -+ sys_unlink(dirp->d_name); -+ } -+ -+ count -= dirp->d_reclen; -+ dirp = (void *)dirp + dirp->d_reclen; -+ } -+ dirp = buf; -+ memset(buf, 0, BUF_SIZE); -+ count = sys_getdents64(fd, dirp, BUF_SIZE); -+ } -+ -+ sys_close(fd); -+ kfree(buf); -+} -+ - static int __init populate_rootfs(void) - { - char *err = unpack_to_rootfs(__initramfs_start, -- __initramfs_end - __initramfs_start, 0); -+ __initramfs_end - __initramfs_start); - if (err) - panic(err); - if (initrd_start) { -@@ -584,13 +623,15 @@ static int __init populate_rootfs(void) - int fd; - printk(KERN_INFO "checking if image is initramfs..."); - err = unpack_to_rootfs((char *)initrd_start, -- initrd_end - initrd_start, 1); -+ initrd_end - initrd_start); - if (!err) { - printk(" it is\n"); -- unpack_to_rootfs((char *)initrd_start, -- initrd_end - initrd_start, 0); - free_initrd(); - return 0; -+ } else { -+ clean_rootfs(); -+ unpack_to_rootfs(__initramfs_start, -+ __initramfs_end - __initramfs_start); - } - printk("it isn't (%s); looks like an initrd\n", err); - fd = sys_open("/initrd.image", O_WRONLY|O_CREAT, 0700); -@@ -603,7 +644,7 @@ static int __init populate_rootfs(void) - #else - printk(KERN_INFO "Unpacking initramfs..."); - err = unpack_to_rootfs((char *)initrd_start, -- initrd_end - initrd_start, 0); -+ initrd_end - initrd_start); - if (err) - panic(err); - printk(" done\n"); --- -1.5.5.1 - |