AuxXxilium/linux_dsm_epyc7002
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24bce50803
linux_dsm_epyc7002/drivers
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Roland Dreier 24bce50803 IB/umem: Fix possible hang on process exit 
If ib_umem_release() is called after ib_uverbs_close() sets context->closing,
then a process can get stuck in a D state, because the code boils down to

	if (down_write_trylock(&mm->mmap_sem))
		down_write(&mm->mmap_sem);

which is obviously a stupid instant deadlock.  Fix the code so that we
only try to take the lock once.

This bug was introduced in commit f7c6a7b5 ("IB/uverbs: Export
ib_umem_get()/ib_umem_release() to modules") which fortunately never
made it into a release, and was reported by Pete Wyckoff <pw@osc.edu>.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-06-21 11:05:58 -07:00
..
acorn
acpi toshiba_acpi: fix section mismatch in allyesconfig 2007-06-16 13:16:15 -07:00
amba
ata libata: limit post SRST nsect/lbal wait to ~100ms 2007-06-11 00:52:53 -04:00
atm [ATM]: Fix warning. 2007-06-03 18:08:44 -07:00
auxdisplay cfag12864bfb: Use sys_ instead of cfb_ framebuffer accessors 2007-06-01 08:18:28 -07:00
base firmware: remove orphaned Email 2007-06-08 12:41:08 -07:00
block loop: preallocate eight loop devices 2007-06-08 17:23:32 -07:00
bluetooth [Bluetooth] Always send HCI_Reset for Broadcom devices 2007-05-24 14:26:15 +02:00
cdrom potential parse error in ifdef part 3 2007-06-08 17:23:33 -07:00
char random: fix output buffer folding 2007-06-16 13:16:16 -07:00
clocksource
connector
cpufreq Add suspend-related notifications for CPU hotplug 2007-05-09 12:30:56 -07:00
crypto [CRYPTO] geode: Fix in-place operations and set key 2007-05-24 21:23:24 +10:00
dio
dma [S390] Kconfig: unwanted menus for s390. 2007-05-10 15:46:07 +02:00
edac [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
eisa virtual_eisa_root_init() should be __init 2007-05-08 11:15:02 -07:00
fc4
firewire firewire: Only set client->iso_context if allocation was successful. 2007-06-21 00:09:41 +02:00
firmware
hid USB HID: hiddev - fix race between hiddev_send_event() and hiddev_release() 2007-05-10 08:45:56 +02:00
hwmon hwmon/applesmc: Handle name file creation error and deletion 2007-05-27 22:17:43 +02:00
i2c [ARM] 4403/1: Make the PXA-I2C driver work with lockdep validator 2007-05-26 10:09:39 +01:00
ide Resume from RAM on HPC nx6325 broken 2007-06-16 02:24:43 +02:00
ieee1394 ieee1394: fix to ether1394_tx in ether1394.c 2007-06-16 12:43:20 +02:00
infiniband IB/umem: Fix possible hang on process exit 2007-06-21 11:05:58 -07:00
input x86_64: Quieten Atari keyboard warnings in Kconfig 2007-06-20 14:27:26 -07:00
isdn isdn/diva: fix section mismatch 2007-06-08 17:23:33 -07:00
kvm KVM: Prevent guest fpu state from leaking into the host 2007-06-15 12:30:59 +03:00
leds [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
macintosh x86: Only make Macintosh drivers default on Macs 2007-06-20 14:27:26 -07:00
mca mca: add integrated device bus matching 2007-05-09 12:30:49 -07:00
md md: fix bug in error handling during raid1 repair 2007-06-16 13:16:15 -07:00
media V4L/DVB (5751): Ivtv: fix ia64 printk format warnings. 2007-06-08 08:54:41 -03:00
message [SCSI] fusion: fix for BZ 8426 - massive slowdown on SCSI CD/DVD drive 2007-06-05 11:04:56 -05:00
mfd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input 2007-06-04 13:27:33 -07:00
misc Pull now into release branch 2007-06-02 00:48:48 -04:00
mmc mmc: get back read-only switch function 2007-06-13 19:11:20 +02:00
mtd Merge git://git.infradead.org/mtd-2.6 2007-06-04 17:54:09 -07:00
net Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband 2007-06-20 15:39:24 -07:00
nubus
oprofile Detach sched.h from mm.h 2007-05-21 09:18:19 -07:00
parisc [PARISC] fix section mismatch in superio serial drivers 2007-05-27 15:01:19 -04:00
parport [PARISC] fix section mismatch in parport_gsc 2007-05-27 12:13:53 -04:00
pci msi: mask the msix vector before we unmap it 2007-06-01 08:18:27 -07:00
pcmcia at91: fix enable/disable_irq_wake symmetry in pcmcia driver 2007-05-31 07:58:13 -07:00
pnp [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
ps3 Merge branch 'linux-2.6' 2007-05-08 13:37:51 +10:00
rapidio
rtc RTC: use fallback IRQ if PNP tables don't provide one 2007-06-01 08:18:29 -07:00
s390 [S390] Fix zfcpdump header 2007-06-19 13:10:18 +02:00
sbus [SPARC]: Missing #include <linux/mm.h> in drivers/sbus/char/flash.c 2007-05-31 01:52:53 -07:00
scsi Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-rc-fixes-2.6 2007-06-18 10:38:09 -07:00
serial Blackfin serial driver: decouple PARODD and CMSPAR checking from PARENB 2007-06-11 16:16:45 +08:00
sh
sn
spi Blackfin SPI driver: fix bug SPI DMA incomplete transmission 2007-06-11 17:34:17 +08:00
tc potential parse error in ifdef part 3 2007-06-08 17:23:33 -07:00
telephony [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
usb OHCI: Fix machine check in ohci_hub_status_data 2007-06-08 16:24:31 -07:00
video Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6 2007-06-14 18:36:21 -07:00
w1 [S390] Kconfig: menus with depends on HAS_IOMEM. 2007-05-10 15:46:07 +02:00
zorro Amiga Zorro bus: kill resource_size_t warnings 2007-05-04 17:59:08 -07:00
Kconfig
Makefile Merge branch 'juju' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2007-05-10 13:30:08 -07:00