Michael Kerrisk
fc57e6bb5e
futex.2: srcfix: FIXME
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:44 +01:00
Michael Kerrisk
e34a8fb6c3
futex.2: ERRORS: Add ENOMEM case for FUTEX_CMP_REQUEUE_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:44 +01:00
Michael Kerrisk
9e54d26d3c
futex.2: Add further details for FUTEX_CMP_REQUEUE_PI
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:44 +01:00
Darren Hart
f812a08b1d
futex.2: Describe FUTEX_CMP_REQUEUE_PI
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:44 +01:00
Michael Kerrisk
084744ef24
futex.2: Note arguments ignored by FUTEX_TRYLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:44 +01:00
Michael Kerrisk
11a194bff8
futex.2: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:44 +01:00
Michael Kerrisk
0b76182603
futex.2: srfix: FIXME
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
c0091dd3ff
futex.2: srcfix: FIXME
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
badbf70cad
futex.2: Replace instances of EWOULDBLOCK by EAGAIN
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On Linux, the two error numbers are the same. The kernel
code for futexes is somehwat inconsistent, using EAGAIN
in some places, and EWOULDBLOCK in others. Let's make the
manual page consistent at least.
This change requires reordering of one entry in ERRORS.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
fa0388c309
futex.2: Rework FUTEXT_TRYLOCK_PI text a litte + add FIXMEs
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
67833bec78
futex.2: Rework FUTEX_LOCK_PI text and add FIXMEs
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
b52e1cd4a8
futex.2: Further tweaks to PI introductory text
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
f5ad572fcf
futex.2: ffix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
0483b6cce7
futex.2: Add more references to SEE ALSO
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
79d918c7af
futex.2: Rework Hart/Guniguntala text
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
7c16fbff95
futex.2: Integrate text from Darren Hart on PI Mutexes
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From the 2009 Real-Time Linux Workshop paper
Requeue-PI: Making Glibc Condvars PI-Aware
Darren Hart, Dinakar Guniguntala
http://lwn.net/images/conf/rtlws11/papers/proc/p10.pdf
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
b4d4f5c537
futex.2: srcfix: Remove obsolete FIXME
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
bd90a5f9c3
futex.2: Add subsection for PI futexes
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
9ce19cf1b7
futex.2: Fix discussion of FUTEX_LOCK_PI 'timeout' argument
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Reading futex_lock_pi(), it appears that the timeout is *not*
interpreted in the same way as for FUTEX_WAKE.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
a8b5b324e3
futex.2: RETURN VALUE: add FUTEX_WAKE_OP
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
22c15de938
futex.2: RETURN VALUE: add FUTEX_WAIT_REQUEUE_PI
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
dddd395a8d
futex.2: RETURN VALUE: add FUTEX_CMP_REQUEUE_PI
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
52bb928f26
futex.2: RETURN VALUE: add FUTEX_UNLOCK_PI
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
5c716eef68
futex.2: RETURN VALUE: add FUTEX_TRYLOCK_PI
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
bf02a260f4
futex.2: RETURN VALUE: add FUTEX_LOCK_PI
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
b884566b97
futex.2: RETURN VALUE: add FUTEX_WAKE_BITSET
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
7bcc535166
futex.2: RETURN VALUE: add FUTEX_WAIT_BITSET
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
7446a8373c
futex.2: RETURN VALUE: mention FUTEX_WAKE_BITSET under FUTEX_WAIT
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
8f23887259
futex.2: Remove uneeded reference to ERRORS section
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(The need to read ERRORS is implied.)
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
dcad19c0c1
futex.2: RETURN VALUE: add placeholder for various operations
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There are still several operations whose return value
is not yet described.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
76f347bada
futex.2: ERRORS: Add EPERM case for FUTEX_UNLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
f2424faec3
futex.2: ERRORS: Add ENOSYS case for FUTEX_UNLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:43 +01:00
Michael Kerrisk
ce022f1841
futex.2: ERRORS: Add EINVAL case for FUTEX_UNLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Thomas Gleixner
ecae2099c5
futex.2: Document FUTEX_UNLOCK_PI
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
34f14794b5
futex.2: srcfix: FIXME
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
12fdbe23b2
futex.2: Rearrange order FUTEX_UNLOCK_PI in list of operations
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
a9dcb4d1de
futex.2: ERRORS: Add ENOSYS case for FUTEX_LOCK_PI and FUTEX_TRYLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
fedaeaf35c
futex.2: srcfix: Add FIXME for the FUTEX_OWNER_DIED condition
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
d08ce5dd00
futex.2: srcfix: Add FIXME
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
7a39e745a7
futex.2: ERRORS: Add EDEADLK case for FUTEX_LOCK_PI and FUTEX_TRYLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
6f147f79bf
futex.2: wfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
61f8c1d19b
futex.2: srcfix: add FIXMEs
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
5662f56a3d
futex.2: ERRORS: Add EAGAIN case for FUTEX_LOCK_PI and FUTEX_TRYLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
0b0e49344a
futex.2: ERRORS: Add ESRCH case for FUTEX_LOCK_PI and FUTEX_TRYLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
c7589177b7
futex.2: ERRORS: Add EPERM case for FUTEX_LOCK_PI and FUTEX_TRYLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
a218ef20dc
futex.2: ERRORS: Add EINVAL case for FUTEX_LOCK_PI and FUTEX_TRYLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
672595267c
futex.2: srcfix: Add some FIXMEs for FUTEX_LOCK_PI
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
a449c6342a
futex.2: ERRORS: Add ENOMEM for FUTEX_LOCK_PI and FUTEX_TRYLOCK_PI
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Reported-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Thomas Gleixner
e0547e70ae
futex.2: Document FUTEX_LOCK_PI
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00
Michael Kerrisk
dcdfde2633
futex.2: srcfix
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Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
2015-12-15 14:39:42 +01:00