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linux-2.6/drivers
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Roland Dreier 1bf66a3042 IB: Put rlimit accounting struct in struct ib_umem 
When memory pinned with ib_umem_get() is released, ib_umem_release()
needs to subtract the amount of memory being unpinned from
mm->locked_vm.  However, ib_umem_release() may be called with
mm->mmap_sem already held for writing if the memory is being released
as part of an munmap() call, so it is sometimes necessary to defer
this accounting into a workqueue.

However, the work struct used to defer this accounting is dynamically
allocated before it is queued, so there is the possibility of failing
that allocation.  If the allocation fails, then ib_umem_release has no
choice except to bail out and leave the process with a permanently
elevated locked_vm.

Fix this by allocating the structure to defer accounting as part of
the original struct ib_umem, so there's no possibility of failing a
later allocation if creating the struct ib_umem and pinning memory
succeeds.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-05-08 18:00:37 -07:00
..
acorn
acpi workaround rtc-related acpi table bugs 2007-05-08 11:15:18 -07:00
amba
ata Merge branch 'reset-seq' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/libata-dev 2007-05-08 11:58:20 -07:00
atm PCI: Cleanup the includes of <linux/pci.h> 2007-05-02 19:02:35 -07:00
auxdisplay
base fix hotplug for legacy platform drivers 2007-05-08 11:15:10 -07:00
block cciss: include scsi/scsi.h unconditionally 2007-05-08 11:15:10 -07:00
bluetooth [Bluetooth] Correct SCO buffer for another Broadcom based dongle 2007-05-05 00:36:22 +02:00
cdrom mm: remove destroy_dirty_buffers from invalidate_bdev() 2007-05-07 12:12:55 -07:00
char Merge branch 'drm-patches' of master.kernel.org:/pub/scm/linux/kernel/git/airlied/drm-2.6 2007-05-08 11:52:35 -07:00
clocksource
connector
cpufreq Add a new deferrable delayed work init 2007-05-08 11:15:05 -07:00
crypto [CRYPTO] padlock: Remove pointless padlock module 2007-05-02 22:08:26 +10:00
dio
dma
edac Fix 82875 PCI setup 2007-05-08 11:15:07 -07:00
eisa virtual_eisa_root_init() should be __init 2007-05-08 11:15:02 -07:00
fc4
firmware remove "struct subsystem" as it is no longer needed 2007-05-02 18:57:59 -07:00
hid header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
hwmon Merge branch 'hwmon-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6 2007-05-08 12:07:28 -07:00
i2c header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
ide Merge branch 'linux-2.6' 2007-05-08 13:37:51 +10:00
ieee1394 header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
infiniband IB: Put rlimit accounting struct in struct ib_umem 2007-05-08 18:00:37 -07:00
input Merge master.kernel.org:/pub/scm/linux/kernel/git/dtor/input 2007-05-08 11:51:43 -07:00
isdn ISDN: Spinlock initializer cleanup 2007-05-08 11:15:17 -07:00
kvm KVM: Remove unused 'instruction_length' 2007-05-03 10:52:32 +03:00
leds
macintosh Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
mca
md Remove do_sync_file_range() 2007-05-08 11:15:04 -07:00
media Clean up mutex_trylock noise 2007-05-08 11:15:13 -07:00
message remove unused header file: drivers/message/i2o/i2o_lan.h 2007-05-08 11:15:02 -07:00
mfd header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
misc Misc: add sensable phantom driver 2007-05-08 11:15:14 -07:00
mmc Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm 2007-05-06 13:20:10 -07:00
mtd Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
net Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2007-05-08 11:57:17 -07:00
nubus
oprofile
parisc header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
parport parport_serial: fix PCI must_checks 2007-05-08 11:15:08 -07:00
pci Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
pcmcia fix hotplug for legacy platform drivers 2007-05-08 11:15:10 -07:00
pnp PNP: workaround HP BIOS defect that leaves SMCF010 device partly enabled 2007-05-08 11:15:23 -07:00
ps3 Merge branch 'linux-2.6' 2007-05-08 13:37:51 +10:00
rapidio
rtc rtc-cmos: make it load on PNPBIOS systems 2007-05-08 11:15:19 -07:00
s390 s390: qeth driver hardware specs adaptions 2007-05-08 01:16:24 -04:00
sbus header cleaning: don't include smp_lock.h when not used 2007-05-08 11:15:07 -07:00
scsi Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
serial Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
sh
sn
spi au1550 SPI controller driver 2007-05-08 11:15:16 -07:00
tc
telephony replace pci_find_device in drivers/telephony/ixj.c 2007-05-08 11:15:02 -07:00
usb Merge master.kernel.org:/pub/scm/linux/kernel/git/dtor/input 2007-05-08 11:51:43 -07:00
video Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc 2007-05-08 11:50:19 -07:00
w1 Driver for the Maxim DS1WM, a 1-wire bus master ASIC core 2007-05-08 11:15:14 -07:00
zorro Amiga Zorro bus: kill resource_size_t warnings 2007-05-04 17:59:08 -07:00
Kconfig
Makefile i2c: Add i2c_board_info and i2c_new_device() 2007-05-01 23:26:31 +02:00