Jan Kiszka fb51ccbf21 PCI: Rework config space blocking services ... pci_block_user_cfg_access was designed for the use case that a single context, the IPR driver, temporarily delays user space accesses to the config space via sysfs. This assumption became invalid by the time pci_dev_reset was added as locking instance. Today, if you run two loops in parallel that reset the same device via sysfs, you end up with a kernel BUG as pci_block_user_cfg_access detect the broken assumption. This reworks the pci_block_user_cfg_access to a sleeping service pci_cfg_access_lock and an atomic-compatible variant called pci_cfg_access_trylock. The former not only blocks user space access as before but also waits if access was already locked. The latter service just returns false in this case, allowing the caller to resolve the conflict instead of raising a BUG. Adaptions of the ipr driver were originally written by Brian King. Acked-by: Brian King <brking@linux.vnet.ibm.com> Acked-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>		2012-01-06 12:10:33 -08:00
..
aacraid	[SCSI] aacraid: controller hangs if kernel uses non-default ASPM policy	2011-11-11 08:19:01 -06:00
aic7xxx	aic7xxx: fix Kconfig references to READMEs	2011-10-10 23:52:56 +02:00
aic7xxx_old	…
aic94xx	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2011-10-28 16:44:18 -07:00
arcmsr	…
arm	…
be2iscsi	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
bfa	scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required	2011-10-31 19:31:23 -04:00
bnx2fc	[SCSI] bnx2fc: Bumped version to 1.0.9	2011-10-30 14:05:52 +04:00
bnx2i	[SCSI] bnx2i: Fixed kernel panic caused by unprotected task->sc->request deref	2011-12-14 17:05:23 +04:00
cxgbi	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
device_handler	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
dpt	atomic: use <linux/atomic.h>	2011-07-26 16:49:47 -07:00
fcoe	[SCSI] fcoe: fix fcoe in a DCB environment by adding DCB notifiers to set skb priority	2011-12-15 11:02:07 +04:00
fnic	…
ibmvscsi	…
isci	[SCSI] isci: overriding max_concurr_spinup oem parameter by max(oem, user)	2011-10-31 13:23:18 +04:00
libfc	Merge branch 'modsplit-Oct31_2011' of git://git.kernel.org/pub/scm/linux/kernel/git/paulg/linux	2011-11-06 19:44:47 -08:00
libsas	scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required	2011-10-31 19:31:23 -04:00
lpfc	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
megaraid	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
mpt2sas	[SCSI] mpt2sas: _scsih_smart_predicted_fault uses GFP_KERNEL in interrupt context	2011-12-12 12:20:49 +04:00
mvsas	[SCSI] mv_sas: OCZ RevoDrive3 & zDrive R4 support	2011-10-31 13:29:01 +04:00
osd	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
pcmcia	…
pm8001	[SCSI] isci: export phy events via ->lldd_control_phy()	2011-10-02 13:24:26 -05:00
qla2xxx	[SCSI] qla2xxx: Update version number to 8.03.07.12-k.	2011-12-12 14:08:58 +04:00
qla4xxx	[SCSI] qla4xxx: check for failed conn setup	2011-12-14 15:40:44 +04:00
sym53c8xx_2	…
.gitignore	…
3w-9xxx.c	[SCSI] 3w-9xxx: fix iommu_iova leak	2011-09-26 09:28:58 -05:00
3w-9xxx.h	…
3w-sas.c	…
3w-sas.h	…
3w-xxxx.c	…
3w-xxxx.h	…
53c700.c	…
53c700.h	…
53c700.scr	…
53c700_d.h_shipped	…
BusLogic.c	…
BusLogic.h	…
FlashPoint.c	…
Kconfig	Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild	2011-11-06 18:54:53 -08:00
Makefile	Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6	2011-10-28 16:44:18 -07:00
NCR53c406a.c	…
NCR5380.c	…
NCR5380.h	…
NCR_D700.c	…
NCR_D700.h	…
NCR_Q720.c	…
NCR_Q720.h	…
a100u2w.c	…
a100u2w.h	…
a2091.c	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
a2091.h	…
a3000.c	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
a3000.h	…
a4000t.c	…
advansys.c	…
aha152x.c	…
aha152x.h	…
aha1542.c	…
aha1542.h	…
aha1740.c	…
aha1740.h	…
aic7xxx_old.c	…
atari_NCR5380.c	…
atari_scsi.c	…
atari_scsi.h	…
atp870u.c	…
atp870u.h	…
bvme6000_scsi.c	…
ch.c	…
constants.c	…
dc395x.c	…
dc395x.h	…
dmx3191d.c	…
dpt_i2o.c	…
dpti.h	…
dtc.c	…
dtc.h	…
eata.c	…
eata_generic.h	…
eata_pio.c	…
eata_pio.h	…
esp_scsi.c	…
esp_scsi.h	…
fd_mcs.c	…
fdomain.c	…
fdomain.h	…
g_NCR5380.c	…
g_NCR5380.h	…
g_NCR5380_mmio.c	…
gdth.c	…
gdth.h	…
gdth_ioctl.h	…
gdth_proc.c	…
gdth_proc.h	…
gvp11.c	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
gvp11.h	…
hosts.c	[SCSI] Make scsi_free_queue() kill pending SCSI commands	2011-10-30 13:20:28 +04:00
hpsa.c	[SCSI] hpsa: Disable ASPM	2011-11-14 10:47:01 -06:00
hpsa.h	[SCSI] hpsa: detect controller lockup	2011-10-30 14:35:01 +04:00
hpsa_cmd.h	[SCSI] hpsa: fix potential array overflow in hpsa_update_scsi_devices	2011-10-30 14:34:04 +04:00
hptiop.c	…
hptiop.h	…
ibmmca.c	…
imm.c	…
imm.h	…
in2000.c	…
in2000.h	…
initio.c	…
initio.h	…
ipr.c	PCI: Rework config space blocking services	2012-01-06 12:10:33 -08:00
ipr.h	PCI: Rework config space blocking services	2012-01-06 12:10:33 -08:00
ips.c	…
ips.h	…
iscsi_boot_sysfs.c	…
iscsi_tcp.c	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
iscsi_tcp.h	…
jazz_esp.c	…
lasi700.c	…
libiscsi.c	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
libiscsi_tcp.c	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
libsrp.c	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
mac53c94.c	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
mac53c94.h	…
mac_esp.c	[SCSI] mac_esp: remove redundant mutual exclusion	2011-09-22 15:10:18 +04:00
mac_scsi.c	…
mac_scsi.h	…
megaraid.c	…
megaraid.h	…
mesh.c	…
mesh.h	…
mvme16x_scsi.c	…
mvme147.c	…
mvme147.h	…
mvumi.c	[SCSI] mvumi: Add Marvell UMI driver	2011-08-27 08:36:58 -06:00
mvumi.h	[SCSI] mvumi: Add Marvell UMI driver	2011-08-27 08:36:58 -06:00
ncr53c8xx.c	…
ncr53c8xx.h	…
nsp32.c	…
nsp32.h	…
nsp32_debug.c	…
nsp32_io.h	…
osst.c	…
osst.h	…
osst_detect.h	…
osst_options.h	…
pas16.c	…
pas16.h	…
pmcraid.c	[SCSI] pmcraid: pmcraid_chr_ioctl uses incorrect argument order to kmalloc()	2011-10-30 14:06:58 +04:00
pmcraid.h	Remove unneeded version.h includes from drivers/scsi/	2011-09-15 14:57:07 +02:00
ppa.c	…
ppa.h	…
ps3rom.c	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
qla1280.c	…
qla1280.h	…
qlogicfas.c	…
qlogicfas408.c	…
qlogicfas408.h	…
qlogicpti.c	[SCSI] qlogicpti: fix timeout	2011-10-16 10:58:52 -05:00
qlogicpti.h	…
raid_class.c	…
script_asm.pl	…
scsi.c	…
scsi.h	…
scsi_debug.c	…
scsi_devinfo.c	…
scsi_error.c	[SCSI] Fix out of spec CD-ROM problem with media change	2011-08-27 08:36:41 -06:00
scsi_ioctl.c	…
scsi_lib.c	[SCSI] Silencing 'killing requests for dead queue'	2011-11-09 12:07:07 -06:00
scsi_lib_dma.c	scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required	2011-10-31 19:31:23 -04:00
scsi_logging.h	…
scsi_module.c	…
scsi_netlink.c	scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required	2011-10-31 19:31:23 -04:00
scsi_pm.c	scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required	2011-10-31 19:31:23 -04:00
scsi_priv.h	…
scsi_proc.c	…
scsi_sas_internal.h	…
scsi_scan.c	[SCSI] fix WARNING: at drivers/scsi/scsi_lib.c:1704	2011-11-09 12:05:23 -06:00
scsi_sysctl.c	…
scsi_sysfs.c	[SCSI] scsi: Added support for adapter and firmware reset	2011-08-27 08:36:46 -06:00
scsi_tgt_if.c	scsi: Add export.h for EXPORT_SYMBOL/THIS_MODULE as required	2011-10-31 19:31:23 -04:00
scsi_tgt_lib.c	…
scsi_tgt_priv.h	…
scsi_trace.c	…
scsi_transport_api.h	…
scsi_transport_fc.c	…
scsi_transport_fc_internal.h	…
scsi_transport_iscsi.c	[SCSI] scsi_transport_iscsi: Fix documentation os parameter	2011-11-03 11:16:53 +04:00
scsi_transport_sas.c	[SCSI] libsas: disable scanning lun > 0 on ata devices	2011-10-02 12:29:19 -05:00
scsi_transport_spi.c	[SCSI] scsi_transport_spi: Export host width and HBA id	2011-07-26 13:53:50 +04:00
scsi_transport_srp.c	…
scsi_transport_srp_internal.h	…
scsi_typedefs.h	…
scsi_wait_scan.c	…
scsicam.c	…
sd.c	[SCSI] sd: remove arbitrary SD_MAX_DISKS namespace limit	2011-10-30 12:58:11 +04:00
sd.h	[SCSI] sd: remove arbitrary SD_MAX_DISKS namespace limit	2011-10-30 12:58:11 +04:00
sd_dif.c	…
ses.c	…
sg.c	scsi/sg: use printk_ratelimited instead of printk_ratelimit	2011-09-15 14:05:25 +02:00
sgiwd93.c	…
sim710.c	…
sni_53c710.c	…
sr.c	[SCSI] sr: check_events() ignore GET_EVENT when TUR says otherwise	2011-07-21 14:15:58 -07:00
sr.h	[SCSI] sr: check_events() ignore GET_EVENT when TUR says otherwise	2011-07-21 14:15:58 -07:00
sr_ioctl.c	scsi: Fix up files implicitly depending on module.h inclusion	2011-10-31 19:31:24 -04:00
sr_vendor.c	…
st.c	[SCSI] st: fix race in st_scsi_execute_end	2011-10-30 13:27:28 +04:00
st.h	…
st_options.h	…
stex.c	…
sun3_NCR5380.c	…
sun3_scsi.c	…
sun3_scsi.h	…
sun3_scsi_vme.c	…
sun3x_esp.c	…
sun_esp.c	…
sym53c416.c	…
sym53c416.h	…
t128.c	…
t128.h	…
tmscsim.c	…
tmscsim.h	…
u14-34f.c	…
ultrastor.c	…
ultrastor.h	…
vmw_pvscsi.c	…
vmw_pvscsi.h	…
wd33c93.c	…
wd33c93.h	…
wd7000.c	…
zalon.c	…
zorro7xx.c	…