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Davide Libenzi f348d70a32 [PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications 
Implement the half-closed devices notifiation, by adding a new POLLRDHUP
(and its alias EPOLLRDHUP) bit to the existing poll/select sets.  Since the
existing POLLHUP handling, that does not report correctly half-closed
devices, was feared to be changed, this implementation leaves the current
POLLHUP reporting unchanged and simply add a new bit that is set in the few
places where it makes sense.  The same thing was discussed and conceptually
agreed quite some time ago:

http://lkml.org/lkml/2003/7/12/116

Since this new event bit is added to the existing Linux poll infrastruture,
even the existing poll/select system calls will be able to use it.  As far
as the existing POLLHUP handling, the patch leaves it as is.  The
pollrdhup-2.6.16.rc5-0.10.diff defines the POLLRDHUP for all the existing
archs and sets the bit in the six relevant files.  The other attached diff
is the simple change required to sys/epoll.h to add the EPOLLRDHUP
definition.

There is "a stupid program" to test POLLRDHUP delivery here:

 http://www.xmailserver.org/pollrdhup-test.c

It tests poll(2), but since the delivery is same epoll(2) will work equally.

Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Michael Kerrisk <mtk-manpages@gmx.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-03-25 08:22:56 -08:00
..
mach-bigsmp
[PATCH] x86: convert bigsmp to use flat physical mode
2006-01-06 08:33:37 -08:00
mach-default
[PATCH] i386: fix uses of user_mode() vs. user_mode_vm()
2006-03-23 07:38:05 -08:00
mach-es7000
[PATCH] Compilation fix for ES7000 when no ACPI is specified in config (i386)
2006-03-23 07:38:04 -08:00
mach-generic
[PATCH] x86: sutomatically enable bigsmp when we have more than 8 CPUs
2005-09-05 00:06:10 -07:00
mach-numaq
[PATCH] Do not enforce unique IO_APIC_ID check for xAPIC systems (i386)
2005-06-23 09:45:09 -07:00
mach-summit
[PATCH] USB: Always do usb-handoff
2005-10-28 16:47:49 -07:00
mach-visws
[PATCH] i386: fix uses of user_mode() vs. user_mode_vm()
2006-03-23 07:38:05 -08:00
mach-voyager
[PATCH] i386: fix uses of user_mode() vs. user_mode_vm()
2006-03-23 07:38:05 -08:00
8253pit.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
a.out.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
acpi.h
[PATCH] don't call check_acpi_pci() on x86 with ACPI disabled
2006-03-22 07:53:54 -08:00
agp.h
[PATCH] i386: inline asm cleanup
2005-09-05 00:06:11 -07:00
alternative.h
[PATCH] x86: SMP alternatives
2006-03-23 07:38:04 -08:00
apic.h
[PATCH] i386: port ATI timer fix from x86_64 to i386 II
2006-03-08 18:10:31 -08:00
apicdef.h
[PATCH] x86: sutomatically enable bigsmp when we have more than 8 CPUs
2005-09-05 00:06:10 -07:00
arch_hooks.h
[PATCH] x86: early printk handling fixes
2006-03-23 07:38:05 -08:00
atomic.h
[PATCH] atomic: add_unless cmpxchg optimise
2006-03-23 07:38:17 -08:00
auxvec.h
[PATCH] auxiliary vector cleanups
2005-09-07 16:57:21 -07:00
bitops.h
[PATCH] x86: SMP alternatives
2006-03-23 07:38:04 -08:00
boot.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
bug.h
[PATCH] remove all kernel BUGs
2005-05-01 08:59:01 -07:00
bugs.h
[PATCH] i386: move SIMD initialization
2006-01-06 08:33:34 -08:00
byteorder.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
cache.h
[PATCH] Move read_mostly definition to asm/cache.h
2006-03-23 07:38:10 -08:00
cacheflush.h
[PATCH] x86/x86_64: mark rodata section read only: x86 parts
2006-01-06 08:33:36 -08:00
checksum.h
[NET]: Fix ipl=>ihl typo in ip_fast_csum
2005-08-29 16:02:48 -07:00
cpu.h
[PATCH] i386 CPU hotplug
2005-06-25 16:24:29 -07:00
cpufeature.h
[PATCH] x86: SMP alternatives
2006-03-23 07:38:04 -08:00
cputime.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
current.h
[PATCH] mark several functions __always_inline
2006-01-14 18:27:15 -08:00
debugreg.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
delay.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
desc.h
[PATCH] x86: fix broken SMP boot sequence
2006-02-24 14:31:38 -08:00
div64.h
[PATCH] include/asm-i386/: "extern inline" -> "static inline"
2005-09-10 10:06:34 -07:00
dma-mapping.h
[PATCH] i386: make pci_map_single/pci_map_sg warn for zero length.
2006-01-11 19:04:56 -08:00
dma.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
e820.h
[PATCH] Increase number of e820 entries hard limit from 32 to 128
2005-05-01 08:58:51 -07:00
edac.h
[PATCH] EDAC: core EDAC support code
2006-01-18 19:20:31 -08:00
elf.h
[PATCH] fix remaining missing includes
2005-11-07 07:53:41 -08:00
emergency-restart.h
[PATCH] i386: Implement machine_emergency_reboot
2005-07-26 14:35:42 -07:00
errno.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
fcntl.h
[PATCH] Clean up struct flock64 definitions
2005-09-07 16:57:38 -07:00
fixmap.h
[ACPI] delete CONFIG_ACPI_BOOT
2005-08-24 12:08:54 -04:00
floppy.h
[PATCH] make some things static
2005-05-05 16:36:47 -07:00
futex.h
[PATCH] uml: remove leftover from patch revertal
2006-01-18 19:20:20 -08:00
genapic.h
[PATCH] Do not enforce unique IO_APIC_ID check for xAPIC systems (i386)
2005-06-23 09:45:09 -07:00
hardirq.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
highmem.h
[PATCH] kdump: Routines for copying dump pages
2005-06-25 16:24:53 -07:00
hpet.h
[PATCH] i386: fix hpet for systems that don't support legacy replacement
2005-05-01 08:58:50 -07:00
hw_irq.h
Revert "i386: move apic init in init_IRQs"
2005-10-31 19:16:17 -08:00
i387.h
[PATCH] i386: task_thread_info()
2006-01-12 09:08:51 -08:00
i8253.h
[PATCH] x86: i8253/i8259A lock cleanup
2005-06-30 08:45:10 -07:00
i8259.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ide.h
[PATCH] ide: explain the PCI bus test we do in <asm-i386/ide.h>
2005-11-10 00:10:37 +01:00
io_apic.h
[ACPI] delete CONFIG_ACPI_BOOT
2005-08-24 12:08:54 -04:00
io.h
[PATCH] remove ISA legacy functions: remove the helpers
2006-03-24 07:33:19 -08:00
ioctl.h
[PATCH] Generic ioctl.h
2006-01-10 08:01:34 -08:00
ioctls.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ipc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
ipcbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
irq.h
[PATCH] Make vm86 support optional
2006-01-08 20:14:11 -08:00
ist.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
kdebug.h
[PATCH] x86 NMI: better support for debuggers
2005-09-05 00:06:13 -07:00
kexec.h
[PATCH] Kdump: i386 compiler warning fix
2006-01-10 08:01:27 -08:00
kmap_types.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
kprobes.h
[PATCH] Kprobes causes NX protection fault on i686 SMP
2006-02-24 14:31:37 -08:00
ldt.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
linkage.h
[PATCH] i386: fix prevent_tail_call
2005-05-26 16:16:16 -07:00
local.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
math_emu.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mc146818rtc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mca_dma.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mca.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mman.h
[PATCH] add asm-generic/mman.h
2006-02-15 15:32:22 -08:00
mmu_context.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mmu.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mmx.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
mmzone.h
[PATCH] mm: kvaddr_to_nid not used in common code
2006-01-06 08:33:23 -08:00
module.h
[PATCH] Base support for AMD Geode GX/LX processors
2006-01-06 08:33:38 -08:00
mpspec_def.h
[PATCH] mpspec: remove unneeded packed attribute
2006-01-06 08:33:39 -08:00
mpspec.h
[PATCH] i386: remove duplicate declaration of mp_bus_id_to_pci_bus
2006-03-23 07:38:04 -08:00
msgbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
msi.h
[PATCH] PCI: Change MSI to use physical delivery mode always
2005-11-10 16:09:18 -08:00
msr.h
[PATCH] x86: more asm cleanups
2005-09-05 00:06:12 -07:00
mtrr.h
[PATCH] Fix the imlicit declaration of mtrr_centaur_report_mcr in arch/i386/kernel/cpu/centaur.c
2006-03-23 07:38:06 -08:00
mutex.h
[PATCH] x86: SMP alternatives
2006-03-23 07:38:04 -08:00
namei.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
nmi.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
node.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
numa.h
[PATCH] x86-64: Use ACPI PXM to parse PCI<->node assignments
2005-09-12 10:49:57 -07:00
numaq.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
numnodes.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
page.h
[PATCH] VMSPLIT config options
2006-02-01 08:53:21 -08:00
param.h
[PATCH] Avoid namespace pollution in <asm/param.h>
2006-01-02 08:38:38 -08:00
parport.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pci-direct.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pci.h
Revert PCIBIOS_MIN_IO changes for 2.6.13
2005-08-14 18:21:30 -07:00
percpu.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pgalloc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pgtable-2level-defs.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pgtable-2level.h
[PATCH] i386: actively synchronize vmalloc area when registering certain callbacks
2006-03-23 07:38:05 -08:00
pgtable-3level-defs.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
pgtable-3level.h
[PATCH] i386: actively synchronize vmalloc area when registering certain callbacks
2006-03-23 07:38:05 -08:00
pgtable.h
[PATCH] Enable mprotect on huge pages
2006-03-22 07:54:03 -08:00
poll.h
[PATCH] POLLRDHUP/EPOLLRDHUP handling for half-closed devices notifications
2006-03-25 08:22:56 -08:00
posix_types.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
processor.h
[PATCH] i386: task_stack_page()
2006-01-12 09:08:52 -08:00
ptrace.h
[PATCH] PTRACE_SYSEMU is only for i386 and clashes with other ptrace codes of other archs
2006-01-08 20:14:04 -08:00
resource.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
rtc.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
rwlock.h
[PATCH] x86: SMP alternatives
2006-03-23 07:38:04 -08:00
rwsem.h
[PATCH] add sem_is_read/write_locked()
2005-10-29 21:40:35 -07:00
scatterlist.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
seccomp.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sections.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
segment.h
[PATCH] x86: Pnp segments in segment h
2006-01-06 08:33:34 -08:00
semaphore.h
[PATCH] x86: SMP alternatives
2006-03-23 07:38:04 -08:00
sembuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
serial.h
[PATCH] Serial: Split 8250 port table (part 2)
2005-06-29 18:45:19 +01:00
setup.h
[PATCH] x86: fix EFI memory map parsing
2005-09-05 00:06:09 -07:00
shmbuf.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
shmparam.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sigcontext.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
siginfo.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
signal.h
[PATCH] Handle TIF_RESTORE_SIGMASK for i386
2006-01-18 19:20:29 -08:00
smp.h
[PATCH] PCI: Change MSI to use physical delivery mode always
2005-11-10 16:09:18 -08:00
socket.h
[NET]: Introduce SO_{SND,RCV}BUFFORCE socket options
2005-08-29 15:31:35 -07:00
sockios.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
sparsemem.h
[PATCH] sparsemem memory model for i386
2005-06-23 09:45:05 -07:00
spinlock_types.h
[PATCH] spinlock consolidation
2005-09-10 10:06:21 -07:00
spinlock.h
[PATCH] i386 spinlocks: disable interrupts only if we enabled them
2006-03-23 07:38:06 -08:00
srat.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
stat.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
statfs.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
string.h
[PATCH] mark several functions __always_inline
2006-01-14 18:27:15 -08:00
suspend.h
[PATCH] i386: Use loaddebug macro consistently
2005-04-16 15:24:46 -07:00
system.h
[PATCH] kill include/linux/platform.h, default_idle() cleanup
2006-03-24 07:33:21 -08:00
termbits.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
termios.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
thread_info.h
[PATCH] i386: fix singlestepping though a syscall
2006-02-17 08:55:21 -08:00
timer.h
[PATCH] add suspend/resume for timer
2005-09-05 00:06:18 -07:00
timex.h
[PATCH] x86: cpu_khz type fix
2005-06-23 09:45:11 -07:00
tlb.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
tlbflush.h
[PATCH] seccomp: tsc disable
2005-06-27 15:11:44 -07:00
topology.h
[PATCH] fix x86 topology export in sysfs for subarchitectures
2006-02-14 16:09:34 -08:00
types.h
[PATCH] sab: consolidate kmem_bufctl_t
2005-09-05 00:05:48 -07:00
uaccess.h
[PATCH] i386: Add a temporary to make put_user more type safe
2006-03-23 07:38:04 -08:00
ucontext.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
unaligned.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
unistd.h
[PATCH] x86: Make _syscallX() macros compile in PIC mode
2006-03-23 07:38:07 -08:00
user.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
vga.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
vic.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
vm86.h
[PATCH] Make vm86 support optional
2006-01-08 20:14:11 -08:00
voyager.h
Linux-2.6.12-rc2
2005-04-16 15:20:36 -07:00
xor.h
[PATCH] i386: inline asm cleanup
2005-09-05 00:06:11 -07:00