I really don't like this, as this is the wrong level of abstraction.
> diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
> index 79b7a3438d54..5a9cfde5fc28 100644
> --- a/arch/s390/kernel/compat_linux.c
> +++ b/arch/s390/kernel/compat_linux.c
> @@ -468,7 +468,7 @@ COMPAT_SYSCALL_DEFINE3(s390_write, unsigned int, fd, const char __user *, buf, c
> if ((compat_ssize_t) count < 0)
> return -EINVAL;
>
> - return sys_write(fd, buf, count);
> + return ksys_write(fd, buf, count);
> }
This looks bogus to me. Why does s390 have its own compat version of
write but not any of the other read and write familty calls?
> diff --git a/init/do_mounts_rd.c b/init/do_mounts_rd.c
> index 99e0b649fc0e..2d365c398ccc 100644
> --- a/init/do_mounts_rd.c
> +++ b/init/do_mounts_rd.c
> @@ -270,7 +270,7 @@ int __init rd_load_image(char *from)
> printk("Loading disk #%d... ", disk);
> }
> sys_read(in_fd, buf, BLOCK_SIZE);
> - sys_write(out_fd, buf, BLOCK_SIZE);
> + ksys_write(out_fd, buf, BLOCK_SIZE);
> #if !defined(CONFIG_S390)
> if (!(i % 16)) {
> pr_cont("%c\b", rotator[rotate & 0x3]);
All the do_mounts / initramfs code should be rewritten to use filp_open
and vfs_read/vfs_write instead of adding hacks like this.
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