linux-sg2042/drivers
Roger Pau Monne c6cc142dac xen-blkback: use balloon pages for all mappings
Using balloon pages for all granted pages allows us to simplify the
logic in blkback, especially in the xen_blkbk_map function, since now
we can decide if we want to map a grant persistently or not after we
have actually mapped it. This could not be done before because
persistent grants used ballooned pages, whereas non-persistent grants
used pages from the kernel.

This patch also introduces several changes, the first one is that the
list of free pages is no longer global, now each blkback instance has
it's own list of free pages that can be used to map grants. Also, a
run time parameter (max_buffer_pages) has been added in order to tune
the maximum number of free pages each blkback instance will keep in
it's buffer.

Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Cc: xen-devel@lists.xen.org
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2013-04-18 09:29:22 -04:00
..
accessibility
acpi PCI updates for v3.9: 2013-04-05 19:29:36 -07:00
amba ARM: 7675/1: amba: tegra-ahb: Fix build error w/ PM_SLEEP w/o PM_RUNTIME 2013-03-15 17:20:02 +00:00
ata [libata] Fix HDIO_DRIVE_* ioctl() Linux 3.9 regression 2013-04-03 19:48:49 -04:00
atm hlist: drop the node parameter from iterators 2013-02-27 19:10:24 -08:00
auxdisplay
base regmap: Back out work buffer fix 2013-04-09 18:03:25 +01:00
bcma Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless into for-davem 2013-03-01 13:52:03 -05:00
block xen-blkback: use balloon pages for all mappings 2013-04-18 09:29:22 -04:00
bluetooth Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth 2013-03-18 15:17:11 -04:00
bus
cdrom
char One reversion, a tiny leak fix, and a cc:stable locking fix, in two parts. 2013-04-01 16:17:52 -07:00
clk clk: tegra: Allow PLLE training to succeed 2013-04-01 11:44:38 -07:00
clocksource ImgTec Meta architecture changes for v3.9-rc1 2013-03-03 12:06:09 -08:00
connector proc connector: reject unprivileged listener bumps 2013-02-27 13:08:35 -05:00
cpufreq cpufreq / intel_pstate: Set timer timeout correctly 2013-04-08 22:09:23 +02:00
cpuidle arm-soc: soc-specific updates 2013-02-21 15:27:22 -08:00
crypto crypto: ux500 - add missing comma 2013-04-05 21:02:17 +08:00
dca dca: convert to idr_alloc() 2013-02-27 19:10:15 -08:00
devfreq
dio
dma Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma 2013-04-11 20:35:11 -07:00
edac EDAC: Merge mci.mem_is_per_rank with mci.csbased 2013-03-16 06:32:30 +01:00
eisa EISA/PCI: Init EISA early, before PNP 2013-04-01 12:02:05 -06:00
extcon extcon: max77693: Initialize register of MUIC device to bring up it without platform data 2013-03-13 17:38:57 +09:00
firewire firewire: convert to idr_alloc() 2013-02-27 19:10:15 -08:00
firmware efivars: Fix check for CONFIG_EFI_VARS_PSTORE_DEFAULT_DISABLE 2013-03-22 20:08:01 +00:00
gpio gpio: pca953x: fix irq_domain_add_simple usage 2013-04-11 19:01:19 +02:00
gpu drm/fb-helper: Fix locking in drm_fb_helper_hotplug_event 2013-04-12 14:21:12 +10:00
hid HID: magicmouse: fix race between input_register() and probe() 2013-04-04 09:49:56 +02:00
hsi hsi: fix kernel-doc warnings 2013-03-01 13:39:00 -08:00
hv Drivers: hv: vmbus: Use the new infrastructure for delivering VMBUS interrupts 2013-02-27 10:15:53 -08:00
hwmon hwmon: (lm75.h) Update header inclusion 2013-03-18 21:19:49 +01:00
hwspinlock hwspinlock: fix __hwspin_lock_request error path 2013-04-05 17:45:11 +03:00
i2c ACPI / I2C: Use parent's ACPI_HANDLE() in acpi_i2c_register_devices() 2013-04-02 15:30:41 +02:00
ide Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
idle Merge branch 'core-locking-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2013-02-22 19:25:09 -08:00
iio First round of iio fixes post the 3.9 merge window. 2013-03-06 05:48:24 +08:00
infiniband firmware,IB/qib: revert firmware file move 2013-04-05 12:19:39 -07:00
input arm-soc: bug fixes for 3.9-rc3 2013-03-18 08:17:14 -07:00
iommu IOMMU fixes for Linux v3.9-rc4 2013-03-27 09:25:11 -07:00
ipack Char/Misc driver patches for 3.9-rc1 2013-02-21 13:57:13 -08:00
irqchip irqchip: fix typo when moving gic_raise_softirq() 2013-03-04 17:15:33 -08:00
isdn isdn: hisax: netjet requires VIRT_TO_BUS 2013-03-17 12:01:10 -04:00
leds Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2013-02-26 09:29:02 -08:00
lguest All trivial, thanks to the stuff which didn't quite make it time. 2013-02-26 14:49:12 -08:00
macintosh Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-02-23 17:09:55 -08:00
mailbox mailbox, pl320-ipc: remove __init from probe function 2013-03-04 14:23:11 +01:00
md dm cache: reduce bio front_pad size in writeback mode 2013-04-05 15:36:34 +01:00
media Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid 2013-04-04 08:40:45 -07:00
memory
memstick memstick: move the dereference below the NULL test 2013-02-27 19:10:23 -08:00
message
mfd mfd: twl4030-madc: Remove __exit_p annotation 2013-03-15 07:42:22 +01:00
misc misc/vmw_vmci: Add dependency on CONFIG_NET 2013-04-03 11:53:39 -07:00
mmc Merge branches 'devel-stable', 'fixes' and 'mmci' into for-linus 2013-03-03 00:32:50 +00:00
mtd MTD fixes for 3.9 2013-03-18 08:27:41 -07:00
net bnx2x: Prevent null pointer dereference in AFEX mode 2013-04-10 15:27:04 -04:00
nfc NFC: microread: Fix build failure due to a new MEI bus API 2013-04-01 00:52:42 +02:00
ntb
nubus
of Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
oprofile fs: Limit sys_mount to only request filesystem modules. 2013-03-03 19:36:31 -08:00
parisc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
parport Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2013-02-21 17:54:03 -08:00
pci PCI/PM: Disable runtime PM of PCIe ports 2013-04-03 15:54:59 -06:00
pcmcia Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2013-02-21 17:40:58 -08:00
pinctrl Here are a few pinctrl fixes for the v3.9 rc series: 2013-03-24 10:11:29 -07:00
platform Platform: x86: chromeos_laptop : Add basic platform data for atmel devices 2013-03-08 16:03:29 -08:00
pnp ACPI / glue: Add .match() callback to struct acpi_bus_type 2013-03-04 14:23:40 +01:00
power power: convert to idr_alloc() 2013-02-27 19:10:18 -08:00
pps drivers/pps/clients/pps-gpio.c: use devm_kzalloc 2013-02-27 19:10:23 -08:00
ps3
ptp
pwm pwm: Changes for v3.9-rc1 2013-02-26 09:34:29 -08:00
rapidio
regulator Merge remote-tracking branch 'regulator/fix/twl' into tmp 2013-03-05 10:12:43 +08:00
remoteproc remoteproc: fix FW_CONFIG typo 2013-04-07 15:11:27 +03:00
rpmsg rpmsg: convert to idr_alloc() 2013-02-27 19:10:18 -08:00
rtc Revert "drivers/rtc/rtc-at91rm9200.c: use a variable for storing IMR" 2013-04-05 09:36:53 -07:00
s390 qeth: fix qeth_wait_for_threads() deadlock for OSN devices 2013-04-08 17:16:57 -04:00
sbus Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2013-02-26 20:16:07 -08:00
scsi [SCSI] lpfc: fix potential NULL pointer dereference in lpfc_sli4_rq_put() 2013-04-11 14:17:15 -07:00
sfi
sh
sn
spi spi: Fixes for v3.9 2013-04-05 10:04:41 -07:00
ssb Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into mips-for-linux-next 2013-02-22 10:07:30 +01:00
staging staging: comedi: s626: fix continuous acquisition 2013-03-25 11:35:38 -07:00
target target: Fix incorrect fallthrough of ALUA Standby/Offline/Transition CDBs 2013-04-11 01:48:49 -07:00
tc
thermal thermal: exynos_thermal: return a proper error code while thermal_zone_device_register fail. 2013-03-11 23:09:29 +08:00
tty tty: mxser: fix cycle termination condition in mxser_probe() and mxser_module_init() 2013-04-08 11:30:04 -07:00
uio uio: convert to idr_alloc() 2013-02-27 19:10:19 -08:00
usb USB / PM: Don't try to hide PM QoS flags from usb_port_device_release() 2013-04-02 01:25:09 +02:00
uwb
vfio vfio-pci: Fix possible integer overflow 2013-03-26 11:33:16 -06:00
vhost Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2013-04-12 15:26:42 -07:00
video Fix uvesafb crash bug and typoed flag name in fbmon's new videomode code 2013-04-05 09:15:46 -07:00
virt
virtio All trivial, thanks to the stuff which didn't quite make it time. 2013-02-26 14:49:12 -08:00
vlynq
vme
w1 w1: fix oops when w1_search is called from netlink connector 2013-03-12 16:20:46 -07:00
watchdog watchdog: Revert the AT91RM9200_WATCHDOG dependency 2013-04-14 09:09:10 +02:00
xen Bug-fixes: 2013-04-10 15:57:33 -07:00
zorro new helper: file_inode(file) 2013-02-22 23:31:31 -05:00
Kconfig Char/Misc driver patches for 3.9-rc1 2013-02-21 13:57:13 -08:00
Makefile Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc 2013-02-23 17:09:55 -08:00