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Nicholas Bellinger ee7619f2eb target: Drop signal_pending checks after interruptible lock acquire
Once upon a time, iscsit_get_tpg() was using an un-interruptible
lock.  The signal_pending() usage was a check to allow userspace
to break out of the operation with SIGINT.

AFAICT, there's no reason why this is necessary anymore, and as
reported by Alexey can be potentially dangerous.  Also, go ahead
and drop the other two problematic cases within iscsit_access_np()
and sbc_compare_and_write() as well.

Found by Linux Driver Verification project (linuxtesting.org).

Reported-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2015-05-19 15:18:20 -07:00
..
iscsi target: Drop signal_pending checks after interruptible lock acquire 2015-05-19 15:18:20 -07:00
loopback Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-04-24 10:22:09 -07:00
sbp target: simplify the target template registration API 2015-04-14 12:28:41 -07:00
tcm_fc Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-04-24 10:22:09 -07:00
Kconfig target: Put TCMU under a new config option 2015-04-19 22:41:12 -07:00
Makefile target: Put TCMU under a new config option 2015-04-19 22:41:12 -07:00
target_core_alua.c scsi: rename SERVICE_ACTION_IN to SERVICE_ACTION_IN_16 2014-11-24 20:01:40 +01:00
target_core_alua.h target_core_alua: Referrals configfs integration 2014-01-09 21:48:35 -08:00
target_core_configfs.c target: simplify the target template registration API 2015-04-14 12:28:41 -07:00
target_core_device.c target: Allow userspace to write 1 to attrib/emulate_fua_write 2015-04-01 21:42:51 -07:00
target_core_fabric_configfs.c target: simplify the target template registration API 2015-04-14 12:28:41 -07:00
target_core_fabric_lib.c target: fix pr_out length in iscsi_parse_pr_out_transport_id 2014-09-17 15:17:35 -07:00
target_core_file.c target/file: Fix UNMAP with DIF protection support 2015-04-15 22:47:27 -07:00
target_core_file.h Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2014-01-31 15:31:23 -08:00
target_core_hba.c target: Move dev_cit to struct se_subsystem_api 2014-12-01 21:35:22 -08:00
target_core_iblock.c target/iblock: Add checks for backend DIF emulation 2015-04-07 23:27:44 -07:00
target_core_iblock.h target: kill struct se_subsystem_dev 2012-11-06 20:55:43 -08:00
target_core_internal.h target: move external declarations to a headers 2015-03-26 14:51:53 -07:00
target_core_pr.c target: Fix two sparse warnings 2015-04-14 12:37:38 -07:00
target_core_pr.h target: Fix APTPL metadata handling for dynamic MappedLUNs 2014-10-04 05:40:19 +00:00
target_core_pscsi.c target/pscsi: Fix NULL pointer dereference in get_device_type 2015-03-19 23:26:42 -07:00
target_core_pscsi.h target: kill struct se_subsystem_dev 2012-11-06 20:55:43 -08:00
target_core_rd.c target/rd: Don't pass incomplete scatterlist entries to sbc_dif_verify_* 2015-04-14 12:37:42 -07:00
target_core_rd.h target/rd: Add support for protection SGL setup + release 2014-01-19 02:22:05 +00:00
target_core_sbc.c target: Drop signal_pending checks after interruptible lock acquire 2015-05-19 15:18:20 -07:00
target_core_spc.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-04-24 10:22:09 -07:00
target_core_stat.c target: Convert se_device statistics to atomic_long_t 2013-11-13 18:34:55 -08:00
target_core_tmr.c target: Make core_tmr_abort_task() skip TMFs 2015-04-15 22:47:21 -07:00
target_core_tpg.c target: simplify the target template registration API 2015-04-14 12:28:41 -07:00
target_core_transport.c target: Add missing parentheses 2015-05-14 21:13:37 -07:00
target_core_ua.c target: encapsulate smp_mb__after_atomic() 2014-10-01 14:39:06 -07:00
target_core_ua.h target: target_core_ua_h: Add #define of include guard 2014-09-15 14:27:43 -07:00
target_core_user.c target/user: Disallow full passthrough (pass_level=0) 2015-05-02 18:20:51 -07:00
target_core_xcopy.c target: simplify the target template registration API 2015-04-14 12:28:41 -07:00
target_core_xcopy.h target: Add support for EXTENDED_COPY copy offload emulation 2013-09-10 16:48:43 -07:00