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Joe Eykholt e7a51997da [SCSI] fcoe: flush per-cpu thread work when destroying interface 
This fixes one cause of an occational problem when unloading
libfc where the exchange manager pool doesn't have all items freed.

The existing WARN_ON(mp->total_exches <= 0) isn't hit.
However, note that total_exches is decremented when the
exchange is completed, and it can be held with a refcnt
for a while after that.

I'm not sure what the offending exchange is, but I suspect
it is an incoming request, because outgoing state machines
should be all stopped at this point.

Note that although receive is stopped before the exchange
manager is freed, there could still be active threads
handling received frames.

This patch flushes the queues by allocating a new skb
and sending it through, and have the thread handle
this new skb specially.  This is similar to the way the work
queues are flushed now by putting work items in them and waiting
until they make it through the queue.

An skb->destructor function is used to inform us of
the completion of the flush, and the fr_dev() is left
NULL to indicate to fcoe_percpu_receive_thread() that
the skb should be just freed.  There's already a check
for the lp being NULL which prints a message.
We skip printing the message if the destructor is for flushing.

Signed-off-by: Joe Eykholt <jeykholt@cisco.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>
2009-09-10 12:08:04 -05:00
..
aacraid Replace all DMA_nBIT_MASK macro with DMA_BIT_MASK(n) 2009-04-13 15:04:33 -07:00
aic7xxx [SCSI] aic79xx: make driver respect nvram for IU and QAS settings 2009-06-15 10:09:35 -05:00
aic7xxx_old
aic94xx dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
arcmsr dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
arm Merge branch 'master' into devel 2009-03-28 20:30:18 +00:00
bnx2i [SCSI] bnx2i : Fix "cid #n not valid" issue 2009-08-22 17:52:12 -05:00
cxgb3i Merge git://git.kernel.org/pub/scm/linux/kernel/git/sam/kbuild-fixes 2009-07-04 09:46:01 -07:00
device_handler [SCSI] scsi_dh_rdac: add support for next generation of Dell PV array 2009-09-05 08:46:09 -05:00
dpt trivial: fix typo milisecond/millisecond for documentation and source comments. 2009-06-12 18:01:46 +02:00
fcoe [SCSI] fcoe: flush per-cpu thread work when destroying interface 2009-09-10 12:08:04 -05:00
fnic [SCSI] fcoe, fnic, libfc: modifies current code paths to use EM anchor list 2009-08-22 17:52:08 -05:00
ibmvscsi [SCSI] ibmvscsi: avoid unnecessary use of kzalloc_pool 2009-08-22 17:52:21 -05:00
libfc [SCSI] libfc: don't swap OX_ID and RX_ID when sending BA_RJT 2009-09-10 12:08:03 -05:00
libsas [SCSI] libsas: fix wide port hotplug issues 2009-07-30 09:54:39 -05:00
lpfc [SCSI] lpfc 8.3.4: Update driver version to 8.3.4 2009-08-22 17:52:00 -05:00
megaraid trivial: typo (en|dis|avail|remove)bale -> (en|dis|avail|remove)able 2009-06-12 18:01:45 +02:00
mpt2sas [SCSI] mpt2sas: Bump driver version 01.100.06.00 2009-09-05 09:36:43 -05:00
mvsas [SCSI] mvsas: remove all the casts from void * or to void * 2009-05-23 15:44:13 -05:00
osd [SCSI] Merge branch 'linus' 2009-06-12 10:02:03 -05:00
pcmcia [SCSI] nsp_cs: fix buf overflow 2009-08-22 17:52:22 -05:00
qla2xxx [SCSI] qla2xxx: Add asynchronous-login support. 2009-09-05 09:41:57 -05:00
qla4xxx [SCSI] qla4xxx: Removed residual from overrun debug print 2009-09-05 09:42:44 -05:00
sym53c8xx_2 sym53c8xx: ratelimit parity errors 2009-06-21 11:12:17 -05:00
.gitignore
3w-9xxx.c [SCSI] 3w-9xxx: scsi_dma_unmap fix 2009-05-15 12:23:32 -04:00
3w-9xxx.h [SCSI] 3w-9xxx: add power management support 2009-03-13 15:46:42 -05:00
3w-xxxx.c [SCSI] 3w-xxxx: scsi_dma_unmap fix 2009-05-15 12:24:59 -04:00
3w-xxxx.h [SCSI] 3w-xxxx: scsi_dma_unmap fix 2009-05-15 12:24:59 -04:00
53c700_d.h_shipped
53c700.c [SCSI] Let scsi_cmnd->cmnd use request->cmd buffer 2008-05-02 10:18:22 -05:00
53c700.h
53c700.scr
a100u2w.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
a100u2w.h
a2091.c [SCSI] a2091: make 2 functions static 2009-04-03 10:17:31 -05:00
a2091.h [SCSI] a2091: make 2 functions static 2009-04-03 10:17:31 -05:00
a3000.c [SCSI] a3000: make 2 functions static 2009-04-03 10:17:17 -05:00
a3000.h [SCSI] a3000: make 2 functions static 2009-04-03 10:17:17 -05:00
a4000t.c scsi: a4000 - Correct driver unregistration in case of failure 2009-04-22 20:39:06 +02:00
advansys.c [SCSI] advansys: use request_firmware 2009-04-03 09:25:23 -05:00
aha152x.c drivers/scsi: use nr_irqs 2008-10-16 16:52:06 +02:00
aha152x.h
aha1542.c [SCSI] aha1542: minor irq handler cleanups 2008-04-27 12:19:55 -05:00
aha1542.h
aha1740.c scsi: remove driver_data direct access of struct device 2009-06-15 21:30:27 -07:00
aha1740.h
aic7xxx_old.c Remove pointless casts from void pointers 2008-02-06 10:41:01 -08:00
atari_NCR5380.c Remove multiple KERN_ prefixes from printk formats 2009-07-08 10:30:03 -07:00
atari_scsi.c m68k: section mismatch fixes: Atari SCSI 2009-03-26 21:15:29 +01:00
atari_scsi.h
atp870u.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
atp870u.h
BusLogic.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
BusLogic.h [SCSI] BusLogic: make FlashPoint support x86-32 only 2008-04-07 12:15:44 -05:00
bvme6000_scsi.c scsi/m68k: Kill NCR_700_detect() warnings 2009-03-24 16:38:25 -07:00
ch.c [SCSI] ch: Check NULL for kmalloc() return 2009-08-22 17:52:22 -05:00
constants.c [SCSI] update scsi/constants.c 2009-08-22 17:51:50 -05:00
dc395x.c [SCSI] Remove random noop unchecked_isa_dma users 2008-04-07 12:15:40 -05:00
dc395x.h
dmx3191d.c
dpt_i2o.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
dpti.h drivers/scsi/dpt_i2o.c: fix build on alpha 2008-05-08 10:46:56 -07:00
dtc.c
dtc.h
eata_generic.h
eata_pio.c [SCSI] Clean up my email address and use a single standard address for everything 2008-12-29 11:24:12 -06:00
eata_pio.h
eata.c block: convert to pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
esp_scsi.c [SCSI] esp_scsi: Use DIV_ROUND_UP 2008-12-29 11:24:14 -06:00
esp_scsi.h sparc: Kill SBUS DVMA layer. 2008-08-29 02:13:10 -07:00
fd_mcs.c
fdomain.c [SCSI] Clean up my email address and use a single standard address for everything 2008-12-29 11:24:12 -06:00
fdomain.h
FlashPoint.c [SCSI] FlashPoint: fix off-by-one errors 2008-04-27 12:19:55 -05:00
g_NCR5380_mmio.c
g_NCR5380.c
g_NCR5380.h
gdth_ioctl.h
gdth_proc.c [SCSI] gdth: fix overlapping snprintf users 2009-06-09 10:31:46 -05:00
gdth_proc.h block: unify request timeout handling 2008-10-09 08:56:13 +02:00
gdth.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
gdth.h block: unify request timeout handling 2008-10-09 08:56:13 +02:00
gvp11.c [SCSI] a2091, gvp11: kill warn_unused_result warnings 2009-01-02 12:16:18 -06:00
gvp11.h
hosts.c fix race that can give duplicate host number 2009-06-21 10:52:42 -05:00
hptiop.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
hptiop.h
ibmmca.c [SCSI] Clean up my email address and use a single standard address for everything 2008-12-29 11:24:12 -06:00
imm.c [SCSI] replace __FUNCTION__ with __func__ 2008-07-27 10:31:49 -04:00
imm.h
in2000.c [SCSI] Clean up my email address and use a single standard address for everything 2008-12-29 11:24:12 -06:00
in2000.h
initio.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
initio.h [SCSI] Clean up my email address and use a single standard address for everything 2008-12-29 11:24:12 -06:00
ipr.c ipr: differentiate pci-x and pci-e based adapters 2009-06-21 10:52:47 -05:00
ipr.h [SCSI] ipr: fix buffer overflow 2009-08-22 17:52:12 -05:00
ips.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
ips.h removed unused #include <linux/version.h>'s 2008-08-23 12:14:12 -07:00
iscsi_tcp.c [SCSI] iscsi_tcp: add new conn error to indicate tcp conn closed 2009-09-05 09:42:47 -05:00
iscsi_tcp.h [SCSI] iscsi_tcp: hook iscsi_tcp into new libiscsi_tcp module 2008-12-29 11:24:22 -06:00
jazz_esp.c [SCSI] jazz_esp, sgiwd93, sni_53c710, sun3x_esp: fix platform driver hotplug/coldplug 2008-04-27 12:33:04 -05:00
Kconfig explain the hidden scsi_wait_scan Kconfig variable 2009-06-21 11:10:41 -05:00
lasi700.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
libiscsi_tcp.c libiscsi: don't run scsi eh if iscsi task is making progress 2009-06-21 10:52:39 -05:00
libiscsi.c [SCSI] libiscsi, iscsi_tcp: check suspend bit before each call to xmit_task 2009-09-05 09:42:48 -05:00
libsrp.c scsi: remove driver_data direct access of struct device 2009-06-15 21:30:27 -07:00
mac53c94.c Remove multiple KERN_ prefixes from printk formats 2009-07-08 10:30:03 -07:00
mac53c94.h
mac_esp.c [SCSI] mac_esp: fix for quadras with two esp chips 2008-12-29 11:24:19 -06:00
mac_scsi.c m68k: machw.h cleanup 2008-12-28 20:00:03 +01:00
mac_scsi.h
Makefile [SCSI] bnx2i: Add bnx2i iSCSI driver. 2009-06-09 10:22:45 -05:00
megaraid.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
megaraid.h trivial: typo (en|dis|avail|remove)bale -> (en|dis|avail|remove)able 2009-06-12 18:01:45 +02:00
mesh.c [SCSI] SCSI: remove dev->power.power_state from mesh driver 2008-06-05 09:23:44 -05:00
mesh.h
mvme16x_scsi.c scsi/m68k: Kill NCR_700_detect() warnings 2009-03-24 16:38:25 -07:00
mvme147.c [SCSI] wd33c93: fix up cut and paste error 2008-04-07 12:19:07 -05:00
mvme147.h
ncr53c8xx.c [SCSI] ncr53c8xx: div reaches -1 2009-06-15 10:09:30 -05:00
ncr53c8xx.h
NCR53c406a.c [SCSI] remove use_sg_chaining 2008-01-30 13:14:02 -06:00
NCR5380.c [SCSI] Clean up my email address and use a single standard address for everything 2008-12-29 11:24:12 -06:00
NCR5380.h
NCR_D700.c [SCSI] NCR_D700: fix IRQ handler return type 2009-05-23 15:44:09 -05:00
NCR_D700.h
NCR_Q720.c
NCR_Q720.h
nsp32_debug.c [SCSI] replace __FUNCTION__ with __func__ 2008-07-27 10:31:49 -04:00
nsp32_io.h
nsp32.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
nsp32.h removed unused #include <linux/version.h>'s 2008-08-23 12:14:12 -07:00
osst_detect.h
osst_options.h
osst.c [SCSI] osst: replace scsi_execute_async with the block layer API 2009-03-12 12:58:10 -05:00
osst.h [SCSI] osst: replace scsi_execute_async with the block layer API 2009-03-12 12:58:10 -05:00
pas16.c
pas16.h
ppa.c [SCSI] replace __FUNCTION__ with __func__ 2008-07-27 10:31:49 -04:00
ppa.h
ps3rom.c ps3rom: Use ps3_system_bus_[gs]et_drvdata() instead of direct access 2009-06-16 14:15:46 +10:00
qla1280.c [SCSI] qla1280: error recovery rewrite 2009-05-20 17:21:13 -05:00
qla1280.h [SCSI] qla1280: error recovery rewrite 2009-05-20 17:21:13 -05:00
qlogicfas408.c [SCSI] Clean up my email address and use a single standard address for everything 2008-12-29 11:24:12 -06:00
qlogicfas408.h
qlogicfas.c [SCSI] remove use_sg_chaining 2008-01-30 13:14:02 -06:00
qlogicpti.c [SCSI] qlogicpti: use request_firmware 2009-04-03 09:25:23 -05:00
qlogicpti.h qlogicpti: Convert to pure OF driver. 2008-08-29 02:14:46 -07:00
raid_class.c [SCSI] struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-02 10:22:16 -06:00
script_asm.pl
scsi_debug.c scsi_debug: Add support for physical block exponent and alignment 2009-06-21 11:03:54 -05:00
scsi_devinfo.c enhance device info matching for multiple tables 2009-06-21 10:52:45 -05:00
scsi_error.c [SCSI] reservation conflict after timeout causes device to be taken offline 2009-08-22 17:52:22 -05:00
scsi_ioctl.c [SCSI] struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-02 10:22:16 -06:00
scsi_lib_dma.c
scsi_lib.c [SCSI] Print failed commands 2009-08-22 17:51:51 -05:00
scsi_logging.h
scsi_module.c
scsi_netlink.c [SCSI] fix netlink kernel-doc 2008-10-23 11:42:17 -05:00
scsi_priv.h sd, sr: fix Driver 'sd' needs updating message 2009-06-21 12:01:27 -05:00
scsi_proc.c proc 2/2: remove struct proc_dir_entry::owner 2009-03-31 01:14:44 +04:00
scsi_sas_internal.h SCSI: convert struct class_device to struct device 2008-04-19 19:10:33 -07:00
scsi_scan.c [SCSI] Increase default timeout for INQUIRY 2009-05-20 17:21:13 -05:00
scsi_sysctl.c
scsi_sysfs.c sd, sr: fix Driver 'sd' needs updating message 2009-06-21 12:01:27 -05:00
scsi_tgt_if.c scsi-tgt: BKL pushdown 2008-07-02 15:06:25 -06:00
scsi_tgt_lib.c block: cleanup rq->data_len usages 2009-05-11 09:50:55 +02:00
scsi_tgt_priv.h [SCSI] replace __FUNCTION__ with __func__ 2008-07-27 10:31:49 -04:00
scsi_transport_api.h
scsi_transport_fc_internal.h
scsi_transport_fc.c [SCSI] fc_transport: Correct max fc_host attribute count 2009-08-22 17:52:00 -05:00
scsi_transport_iscsi.c [SCSI] iscsi class: Add logging to scsi_transport_iscsi.c 2009-09-05 09:42:45 -05:00
scsi_transport_sas.c [SCSI] scsi_transport_sas: fix incorrect duplicate setup of max_phys 2009-08-22 17:52:01 -05:00
scsi_transport_spi.c scsi_transport_spi: Blacklist Ultrium-3 tape for IU transfers 2009-06-21 10:52:46 -05:00
scsi_transport_srp_internal.h
scsi_transport_srp.c [SCSI] struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-02 10:22:16 -06:00
scsi_typedefs.h
scsi_wait_scan.c driver synchronization: make scsi_wait_scan more advanced 2009-04-21 19:40:00 -07:00
scsi.c [SCSI] fix bugs in scsi_vpd_inquiry() 2009-08-22 17:52:23 -05:00
scsi.h
scsicam.c
sd_dif.c block: convert to pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
sd.c [SCSI] sd: Avoid sending extended inquiry to legacy devices 2009-07-30 11:37:50 -05:00
sd.h sd: Physical block size and alignment support 2009-06-21 10:52:37 -05:00
ses.c [SCSI] ses: update enclosure data on hot add 2009-08-22 17:52:14 -05:00
sg.c block: fix sg SG_DXFER_TO_FROM_DEV regression 2009-07-10 20:31:53 +02:00
sgiwd93.c [SCSI] sgiwd93: Fix compilation warning 2009-01-02 10:58:41 -06:00
sim710.c [SCSI] struct device - replace bus_id with dev_name(), dev_set_name() 2009-01-02 10:22:16 -06:00
sni_53c710.c dma-mapping: replace all DMA_32BIT_MASK macro with DMA_BIT_MASK(32) 2009-04-07 08:31:11 -07:00
sr_ioctl.c [SCSI] sr: report more accurate drive status after closing the tray. 2009-04-27 09:32:30 -05:00
sr_vendor.c drivers/scsi/sr_vendor.c: use bcd2bin 2008-10-20 08:52:41 -07:00
sr.c sd, sr: fix Driver 'sd' needs updating message 2009-06-21 12:01:27 -05:00
sr.h [SCSI] sr: fix test unit ready responses 2008-02-07 18:02:44 -06:00
st_options.h [SCSI] st: add option to use SILI in variable block reads 2008-04-07 12:15:39 -05:00
st.c [SCSI] Merge branch 'linus' 2009-06-12 10:02:03 -05:00
st.h [SCSI] st: remove unused frp_sg_current 2009-01-02 12:02:25 -06:00
stex.c [SCSI] stex: Add reset code for st_yel (v2) 2009-09-05 08:50:41 -05:00
sun3_NCR5380.c Remove multiple KERN_ prefixes from printk formats 2009-07-08 10:30:03 -07:00
sun3_scsi_vme.c [SCSI] sun3_scsi_vme: add MODULE_LICENSE 2008-04-16 09:28:11 -05:00
sun3_scsi.c
sun3_scsi.h
sun3x_esp.c [SCSI] sun3x_esp: Convert && to || 2008-10-23 11:42:19 -05:00
sun_esp.c sparc: Annotate of_device_id arrays with const or __initdata. 2008-08-31 01:23:17 -07:00
sym53c416.c [SCSI] Clean up my email address and use a single standard address for everything 2008-12-29 11:24:12 -06:00
sym53c416.h
t128.c
t128.h
tmscsim.c [SCSI] tmscsim: fix indentation and braces disagreement - add braces 2008-12-29 11:24:14 -06:00
tmscsim.h
u14-34f.c block: convert to pos and nr_sectors accessors 2009-05-11 09:50:54 +02:00
ultrastor.c scsi: fix integer as NULL pointer warnings 2008-04-28 17:31:13 -07:00
ultrastor.h
wd33c93.c [SCSI] WD33C93: let platform stub override no_sync/fast/dma_mode 2008-04-07 12:19:01 -05:00
wd33c93.h
wd7000.c [SCSI] Clean up my email address and use a single standard address for everything 2008-12-29 11:24:12 -06:00
zalon.c [SCSI] zalon: fix oops on attach failure 2009-06-25 11:37:23 -05:00
zorro7xx.c