Steve Wise
cf3760dad5
RDMA/cxgb3: deadlock in iw_cxgb3 can cause hang when configuring interface. ...
When the iw_cxgb3 module's cxgb3_client "add" func gets called by the
cxgb3 module, the iwarp driver ends up calling the ethtool ops get_drvinfo
function in cxgb3 to get the fw version and other info. Currently the
iwarp driver grabs the rtnl lock around this down call to serialize.
As of 2.6.27 or so, things changed such that the rtnl lock is held around
the call to the netdev driver open function. Also the cxgb3_client "add"
function doesn't get called if the device is down.
So, if you load cxgb3, then load iw_cxgb3, then ifconfig up the device,
the iw_cxgb3 add func gets called with the rtnl_lock held. If you
load cxgb3, ifconfig up the device, then load iw_cxgb3, the add func
gets called without the rtnl_lock held. The former causes the deadlock,
the latter does not.
In addition, there are iw_cxgb3 sysfs handlers that also can call
down into cxgb3 to gather the fw and hw versions. These can be called
concurrently on different processors and at any time. Thus we need to
push this serialization down in the cxgb3 driver get_drvinfo func.
The fix is to remove rtnl lock usage, and use a per-device lock in cxgb3.
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
2008-11-11 03:52:10 -05:00
ACPI suspend: build fix for ACPI_SLEEP=n && XEN_SAVE_RESTORE=y.
2008-10-25 04:07:13 -04:00
libata: mask off DET when restoring SControl for detach
2008-11-04 01:08:33 -05:00
sysfs: Fix return values for sysdev_store_{ulong,int}
2008-10-29 15:03:49 -07:00
cciss: fix regression firmware not displayed in procfs
2008-11-06 15:41:18 -08:00
bpa10x: free sk_buff with kfree_skb
2008-10-31 00:40:19 -07:00
gdrom: Fix compile error
2008-10-28 17:46:02 +09:00
vt: incomplete initialization of vc_tab_stop
2008-11-06 15:41:17 -08:00
Merge branch 'v28-range-hrtimers-for-linus-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-10-23 10:53:02 -07:00
[4/4] dca: fixup initialization dependency
2008-11-10 15:01:03 -08:00
[3/4] I/OAT: fix async_tx.callback checking
2008-11-10 15:01:00 -08:00
edac: fix enabling of polling cell module
2008-10-30 11:38:46 -07:00
firewire: struct device - replace bus_id with dev_name(), dev_set_name()
2008-10-31 08:48:25 +01:00
Merge branch 'io-mappings-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
2008-11-03 10:15:40 -08:00
saner FASYNC handling on file close
2008-11-01 09:49:46 -07:00
hwmon: applesmc: add support for iMac 8
2008-11-06 15:41:17 -08:00
i2c-s3c2410: Correct use of ! and &
2008-10-30 15:55:47 +01:00
ide-gd: re-get capacity on revalidate
2008-11-02 21:40:10 +01:00
i7300_idle: Cleanup based review comments
2008-10-24 12:55:14 -04:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6
2008-11-06 15:55:34 -08:00
RDMA/cxgb3: deadlock in iw_cxgb3 can cause hang when configuring interface.
2008-11-11 03:52:10 -05:00
saner FASYNC handling on file close
2008-11-01 09:49:46 -07:00
remove unused #include <version.h>'s
2008-11-01 09:50:12 -07:00
md: linear: Fix a division by zero bug for very small arrays.
2008-11-06 19:41:24 +11:00
saner FASYNC handling on file close
2008-11-01 09:49:46 -07:00
missing dependencies on HAVE_CLK in drivers/mfd
2008-11-01 12:40:38 -07:00
remove unused #include <version.h>'s
2008-11-01 09:50:12 -07:00
[ARM] 5322/1: Fix fastpath issue in mmci.c
2008-10-28 00:00:42 +00:00
Merge git://git.infradead.org/mtd-2.6
2008-11-06 15:43:13 -08:00
RDMA/cxgb3: deadlock in iw_cxgb3 can cause hang when configuring interface.
2008-11-11 03:52:10 -05:00
OF-device: Don't overwrite numa_node in device registration
2008-10-31 16:12:01 +11:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rric/oprofile
2008-10-23 10:05:40 -07:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
2008-10-30 12:52:53 -07:00
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6
2008-10-30 12:09:44 -07:00
Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6
2008-10-31 16:18:02 +09:00
drivers: remove duplicated #include
2008-11-04 08:18:19 -08:00
powerpc/ps3: Fix compile error in ps3-lpm.c
2008-11-05 19:59:08 +11:00
regulator: da903x regulator bug fix
2008-10-30 15:31:35 +00:00
rtc-cmos: fix boot log message
2008-11-06 15:41:19 -08:00
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
2008-10-30 11:46:28 -07:00
drivers: remove duplicated #include
2008-11-04 08:18:19 -08:00
saner FASYNC handling on file close
2008-11-01 09:49:46 -07:00
atmel_serial: keep clock off when it's not needed
2008-11-06 15:41:19 -08:00
SSB: hide empty sub menu
2008-11-10 13:50:17 -08:00
drivers: remove duplicated #include
2008-11-04 08:18:19 -08:00
saner FASYNC handling on file close
2008-11-01 09:49:46 -07:00
saner FASYNC handling on file close
2008-11-01 09:49:46 -07:00
saner FASYNC handling on file close
2008-11-01 09:49:46 -07:00
fbdev: fix fb_compat_ioctl() deadlocks
2008-11-06 15:41:19 -08:00
SAM9 watchdog: update for moved headers
2008-11-06 15:41:20 -08:00
drivers: remove duplicated #include
2008-11-04 08:18:19 -08:00
regulator: Build on non-ARM platforms
2008-10-28 21:47:17 +00:00
Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/dvrabel/uwb
2008-10-26 16:35:46 -07:00
cf3760dad5