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[S390] remove superfluous TIF_USEDFPU bit
authorMartin Schwidefsky <schwidefsky@de.ibm.com>
Wed, 13 Jan 2010 19:44:28 +0000 (20:44 +0100)
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>
Wed, 13 Jan 2010 19:44:44 +0000 (20:44 +0100)
The TIF_USEDFPU bit is always 0 for s390 and it is not tested anywhere.
Remove the bit. At the same time remove the calls to clear_used_math()
as well. The PF_USED_MATH bit is never set for s390 either.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

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