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path: root/arch/powerpc/platforms/iseries/lpevents.c
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2008-04-29powerpc: use non-racy method for proc entries creationDenis V. Lunev
Use proc_create()/proc_create_data() to make sure that ->proc_fops and ->data be setup before gluing PDE to main tree. Add correct ->owner to proc_fops to fix reading/module unloading race. Signed-off-by: Denis V. Lunev <den@openvz.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-12-21Merge branch 'linux-2.6'Paul Mackerras
2007-12-20[POWERPC] iSeries: Fix unregistering HV event handlersStephen Rothwell
Commit fbd568a3e61a7decb8a754ad952aaa5b5c82e9e5 ("Change synchronize_kernel to _rcu and _sched") changed the deprecated synchronize_kernel() in HvLpEvent_unregisterHandler() to synchronize_rcu(). It turns out that it should have been synchronize_sched(). Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-14[POWERPC] iSeries: don't printk with HV spinlock heldStephen Rothwell
Printk was observed to hang during module unload due to a limited window of characters that may be sent to the hypervisor. The window only reexpands when we receive an ack from the HV and the spinlock here prevents us from ever processing that ack. This fixes it by dropping the lock before doing the printk, then looping back to the top to reacquire the lock. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-26[POWERPC] iSeries: Fix section mismatch warning in lpeventsStephen Rothwell
WARNING: vmlinux.o(.text+0x4f568): Section mismatch: reference to .init.text:.__alloc_bootmem (between '.setup_hvlpevent_queue' and '.process_hvlpevents') setup_hvlpevent_queue is only called from __init code so make it __init as well. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-12[PATCH] mark struct file_operations const 2Arjan van de Ven
Many struct file_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. [akpm@osdl.org: sparc64 fix] Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-09[POWERPC] iSeries: fix lpevents initialisationStephen Rothwell
/proc/iSeries/lpevents should only be created if we are running on legacy iSeries. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07[POWERPC] Fix up after irq changesOlaf Hering
Remove struct pt_regs * from all handlers. Also remove the regs argument from get_irq() functions. Compile tested with arch/powerpc/config/* and arch/ppc/configs/prep_defconfig Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-13[POWERPC] iseries: Move ItLpNaca into platforms/iseriesMichael Ellerman
Move ItLpNaca into platforms/iseries now that it's not used elsewhere. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-06-28[POWERPC] Clean up it_lp_queue.hStephen Rothwell
No more StudlyCaps. Remove from a couple of places it is no longer needed. Use C style comments. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-23[PATCH] powerpc: Initialise hvlpevent_queue.lock correctlyMichael Ellerman
When I changed the hvlpevent_queue code to use a spinlock instead of a custom atomic (719d1cd86780c156f954fc34f34481adac197aec) I didn't initialise the lock anywhere, oops. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-12[PATCH] powerpc: remove bitfields from HvLpEventStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-02merge filename and modify references to iseries/it_lp_queue.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/it_lp_naca.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/hv_lp_event.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/hv_call_event.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-10-24powerpc: iseries: Fix a bogus commentStephen Rothwell
A comment in lpevents.c refers to code that's actually in HvCallEvent.h. The code in HvCallEvent.h is pretty obvious, so just remove the comment altogether. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-01powerpc: make iSeries buildStephen Rothwell
Merge vmlinux.lds.S. Also remove arch/powerpc/kernel/vmlinux.lds which is a generated file. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-28powerpc: Merge HvLpEvent.c into lpevents.cStephen Rothwell
These two files were intimately connected, so just merge them. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-09-28powerpc: move ItLpQueue.c to powerpc/platforms/iseriesStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
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