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| author | Anton Blanchard <anton@samba.org> | 2012-09-03 16:49:47 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-09-14 10:00:49 -0700 |
| commit | 52640dfe68118991369cae14e7877caa2e8ef7a7 (patch) | |
| tree | 0fb678691cb4e0cfa4c6b5b29ced00bcc204283e /arch/powerpc/kernel/entry_64.S | |
| parent | 52340b63f6cf9f21051a8f91f42d8ca97415bd1a (diff) | |
| download | kernel_samsung_smdk4412-52640dfe68118991369cae14e7877caa2e8ef7a7.zip kernel_samsung_smdk4412-52640dfe68118991369cae14e7877caa2e8ef7a7.tar.gz kernel_samsung_smdk4412-52640dfe68118991369cae14e7877caa2e8ef7a7.tar.bz2 | |
powerpc: Fix DSCR inheritance in copy_thread()
commit 1021cb268b3025573c4811f1dee4a11260c4507b upstream.
If the default DSCR is non zero we set thread.dscr_inherit in
copy_thread() meaning the new thread and all its children will ignore
future updates to the default DSCR. This is not intended and is
a change in behaviour that a number of our users have hit.
We just need to inherit thread.dscr and thread.dscr_inherit from
the parent which ends up being much simpler.
This was found with the following test case:
http://ozlabs.org/~anton/junkcode/dscr_default_test.c
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/powerpc/kernel/entry_64.S')
0 files changed, 0 insertions, 0 deletions