The patch titled
Subject: initramfs: cleanup populate_rootfs
has been added to the -mm tree. Its filename is
initramfs-cleanup-populate_rootfs.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/initramfs-cleanup-populate_rootfs.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/initramfs-cleanup-populate_rootfs.patch
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*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***
The -mm tree is included into linux-next and is updated
there every 3-4 working days
------------------------------------------------------
From: Christoph Hellwig <hch@xxxxxx>
Subject: initramfs: cleanup populate_rootfs
The code for kernels that support ramdisks or not is mostly the same.
Unify it by using an IS_ENABLED for the info message, and moving the error
message into a stub for populate_initrd_image.
Link: http://lkml.kernel.org/r/20190213174621.29297-6-hch@xxxxxx
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Acked-by: Mike Rapoport <rppt@xxxxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx> [arm64]
Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> [m68k]
Cc: Steven Price <steven.price@xxxxxxx>
Cc: Alexander Viro <viro@xxxxxxxxxxxxxxxxxx>
Cc: Guan Xuetao <gxt@xxxxxxxxxx>
Cc: Russell King <linux@xxxxxxxxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
init/initramfs.c | 31 +++++++++++++++----------------
1 file changed, 15 insertions(+), 16 deletions(-)
--- a/init/initramfs.c~initramfs-cleanup-populate_rootfs
+++ a/init/initramfs.c
@@ -617,6 +617,11 @@ static void populate_initrd_image(char *
written, initrd_end - initrd_start);
ksys_close(fd);
}
+#else
+static void populate_initrd_image(char *err)
+{
+ printk(KERN_EMERG "Initramfs unpacking failed: %s\n", err);
+}
#endif /* CONFIG_BLK_DEV_RAM */
static int __init populate_rootfs(void)
@@ -625,28 +630,22 @@ static int __init populate_rootfs(void)
char *err = unpack_to_rootfs(__initramfs_start, __initramfs_size);
if (err)
panic("%s", err); /* Failed to decompress INTERNAL initramfs */
- /* If available load the bootloader supplied initrd */
- if (initrd_start && !IS_ENABLED(CONFIG_INITRAMFS_FORCE)) {
-#ifdef CONFIG_BLK_DEV_RAM
+
+ if (!initrd_start || IS_ENABLED(CONFIG_INITRAMFS_FORCE))
+ goto done;
+
+ if (IS_ENABLED(CONFIG_BLK_DEV_RAM))
printk(KERN_INFO "Trying to unpack rootfs image as initramfs...\n");
- err = unpack_to_rootfs((char *)initrd_start,
- initrd_end - initrd_start);
- if (!err)
- goto done;
+ else
+ printk(KERN_INFO "Unpacking initramfs...\n");
+ err = unpack_to_rootfs((char *)initrd_start, initrd_end - initrd_start);
+ if (err) {
clean_rootfs();
populate_initrd_image(err);
- done:
- /* empty statement */;
-#else
- printk(KERN_INFO "Unpacking initramfs...\n");
- err = unpack_to_rootfs((char *)initrd_start,
- initrd_end - initrd_start);
- if (err)
- printk(KERN_EMERG "Initramfs unpacking failed: %s\n", err);
-#endif
}
+done:
/*
* If the initrd region is overlapped with crashkernel reserved region,
* free only memory that is not part of crashkernel region.
_
Patches currently in -mm which might be from hch@xxxxxx are
initramfs-free-initrd-memory-if-opening-initrdimage-fails.patch
initramfs-cleanup-initrd-freeing.patch
initramfs-factor-out-a-helper-to-populate-the-initrd-image.patch
initramfs-cleanup-populate_rootfs.patch
initramfs-move-the-legacy-keepinitrd-parameter-to-core-code.patch
initramfs-proide-a-generic-free_initrd_mem-implementation.patch
initramfs-poison-freed-initrd-memory.patch
