Konrad Rzeszutek Wilk b2c75c446a xen/tmem: Don't over-write tmem_frontswap_poolid after tmem_frontswap_init set it. ... Commit 10a7a07713 ("xen: tmem: enable Xen tmem shim to be built/loaded as a module") allows the tmem module to be loaded any time. For this work the frontswap API had to be able to asynchronously to call tmem_frontswap_init before or after the swap image had been set. That was added in git commit 905cd0e1bf ("mm: frontswap: lazy initialization to allow tmem backends to build/run as modules"). Which means we could do this (The common case): modprobe tmem [so calls frontswap_register_ops, no ->init] modifies tmem_frontswap_poolid = -1 swapon /dev/xvda1 [__frontswap_init, calls -> init, tmem_frontswap_poolid is < 0 so tmem hypercall done] Or the failing one: swapon /dev/xvda1 [calls __frontswap_init, sets the need_init bitmap] modprobe tmem [calls frontswap_register_ops, -->init calls, finds out tmem_frontswap_poolid is 0, does not make a hypercall. Later in the module_init, sets tmem_frontswap_poolid=-1] Which meant that in the failing case we would not call the hypercall to initialize the pool and never be able to make any frontswap backend calls. Moving the frontswap_register_ops after setting the tmem_frontswap_poolid fixes it. Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Reviewed-by: Bob Liu <bob.liu@oracle.com>		2013-06-10 10:14:33 -04:00
..
xen-pciback	xen-pciback: more uses of cached MSI-X capability offset	2013-05-29 09:04:22 -04:00
xenbus	xenbus_client.c: correct exit path for xenbus_map_ring_valloc_hvm	2013-05-29 15:24:55 -04:00
xenfs
acpi.c
balloon.c	xen: Fixed assignment error in if statement	2013-05-20 14:14:48 -04:00
biomerge.c
cpu_hotplug.c
dbgp.c
events.c	Bug-fixes:	2013-05-11 16:19:30 -07:00
evtchn.c
fallback.c	xen-pciback: notify hypervisor about devices intended to be assigned to guests	2013-03-22 10:20:55 -04:00
features.c
gntalloc.c
gntdev.c
grant-table.c
Kconfig	xen/tmem: Remove the usage of '[no|]selfballoon' and use 'tmem.selfballooning' bool instead.	2013-05-15 10:27:49 -04:00
Makefile
manage.c
mcelog.c
pci.c
pcpu.c
platform-pci.c
privcmd.c	xen/privcmd: fix condition in privcmd_close()	2013-05-15 10:23:40 -04:00
privcmd.h
swiotlb-xen.c
sys-hypervisor.c
tmem.c	xen/tmem: Don't over-write tmem_frontswap_poolid after tmem_frontswap_init set it.	2013-06-10 10:14:33 -04:00
xen-acpi-cpuhotplug.c
xen-acpi-memhotplug.c
xen-acpi-pad.c
xen-acpi-processor.c	xen: resolve section mismatch warnings in xen-acpi-processor	2013-04-19 10:44:23 -04:00
xen-balloon.c
xen-selfballoon.c	xen/tmem: Don't use self[ballooning|shrinking] if frontswap is off.	2013-05-15 10:27:50 -04:00
xen-stub.c	xen/acpi: remove redundant acpi/acpi_drivers.h include	2013-03-11 13:53:02 -04:00
xencomm.c