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futex.2: ERRORS: add EPERM case for FUTEX_CMP_REQUEUE_PI 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2015-01-15 10:06:15 +01:00
parent 04331c3fd8
commit dc2742a8aa
1 changed files with 7 additions and 2 deletions
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9
man2/futex.2
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@ -1170,9 +1170,14 @@ are not supported on some CPU variants.
.TP
.BR EPERM
.RB ( FUTEX_LOCK_PI ,
.BR FUTEX_TRYLOCK_PI )
.BR FUTEX_TRYLOCK_PI ,
.BR FUTEX_CMP_REQUEUE_PI )
The caller is not allowed to attach itself to the futex at
.I uaddr .
.I uaddr
(for
.BR FUTEX_CMP_REQUEUE_PI :
the futex at
.IR uaddr2 ).
(This may be caused by a state corruption in user space.)
.\"
.\" FIXME Is there not also an EPERM error case on 'uaddr2' for