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(parent: 2b067fc) | patch
alpha: simplify fork and friends
authorAl Viro <viro@zeniv.linux.org.uk>
Thu, 18 Oct 2012 05:11:58 +0000 (01:11 -0400)
committerAl Viro <viro@zeniv.linux.org.uk>
Thu, 29 Nov 2012 02:49:03 +0000 (21:49 -0500)
commite0e431aa45416982eb3fddf34cedc72f1c3b3ce3
tree10f3e3009387881a3c4a209b9d72c453aae865a1tree | snapshot
parent2b067fc9dd143be5e0ee94bae0fbd28ea0a407f8commit | diff
alpha: simplify fork and friends

* no need to restore everything from switch_stack when we only need $26
* no need to pass current_pt_regs() manually, we can just as easily
calculate it in alpha_clone/alpha_vfork ($8 + constant)
* interpretation of zero usp as "use the parent's" is simpler in copy_thread();
let fork and vfork just pass 0.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
arch/alpha/kernel/entry.S diff | blob | history
arch/alpha/kernel/process.c diff | blob | history
Domain: System / Kernel;