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| author | Christoph Hellwig | 2019-05-14 02:18:27 +0200 |
|---|---|---|
| committer | Linus Torvalds | 2019-05-14 18:47:47 +0200 |
| commit | afef7889c480ed134247f16c2ebdeabd75e77fd0 (patch) | |
| tree | 8a145d464559dbfba832ec90fe43e3c7ea1be975 /init | |
| parent | initramfs: factor out a helper to populate the initrd image (diff) | |
| download | kernel-qcow2-linux-afef7889c480ed134247f16c2ebdeabd75e77fd0.tar.gz kernel-qcow2-linux-afef7889c480ed134247f16c2ebdeabd75e77fd0.tar.xz kernel-qcow2-linux-afef7889c480ed134247f16c2ebdeabd75e77fd0.zip | |
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.
[cai@lca.pw: fix a compilation error]
Link: http://lkml.kernel.org/r/20190328014806.36375-1-cai@lca.pw
Link: http://lkml.kernel.org/r/20190213174621.29297-6-hch@lst.de
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Qian Cai <cai@lca.pw>
Acked-by: Mike Rapoport <rppt@linux.ibm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com> [arm64]
Cc: Geert Uytterhoeven <geert@linux-m68k.org> [m68k]
Cc: Steven Price <steven.price@arm.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Guan Xuetao <gxt@pku.edu.cn>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'init')
| -rw-r--r-- | init/initramfs.c | 37 |
1 files changed, 20 insertions, 17 deletions
diff --git a/init/initramfs.c b/init/initramfs.c index e3de626dbd98..32f940473d67 100644 --- a/init/initramfs.c +++ b/init/initramfs.c @@ -595,7 +595,11 @@ static void __init clean_rootfs(void) ksys_close(fd); kfree(buf); } -#endif +#else +static inline void clean_rootfs(void) +{ +} +#endif /* CONFIG_BLK_DEV_RAM */ #ifdef CONFIG_BLK_DEV_RAM static void populate_initrd_image(char *err) @@ -617,6 +621,11 @@ static void populate_initrd_image(char *err) 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 +634,22 @@ 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. |