AuxXxilium/linux_dsm_epyc7002
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8d58881b99
linux_dsm_epyc7002/include/scsi
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Bart Van Assche 8d58881b99 scsi: Avoid that toggling use_blk_mq triggers a memory leak 
This patch avoids that the following memory leak is triggered if
use_blk_mq is disabled after a SCSI host has been allocated by the
ib_srp driver and before the same SCSI host is freed:

unreferenced object 0xffff8803a168c568 (size 256):
  backtrace:
    [<ffffffff81620c95>] kmemleak_alloc+0x45/0xa0
    [<ffffffff811bb104>] __kmalloc_node+0x1e4/0x400
    [<ffffffff81309fe4>] blk_mq_alloc_tag_set+0xb4/0x230
    [<ffffffff814731b7>] scsi_mq_setup_tags+0xc7/0xd0
    [<ffffffff81469c26>] scsi_add_host_with_dma+0x216/0x2d0
    [<ffffffffa064bef5>] srp_create_target+0xe55/0x13d0 [ib_srp]
    [<ffffffff8143ce23>] dev_attr_store+0x13/0x20
    [<ffffffff8125f030>] sysfs_kf_write+0x40/0x50
    [<ffffffff8125e397>] kernfs_fop_write+0x137/0x1c0
    [<ffffffff811d8c13>] __vfs_write+0x23/0x140
    [<ffffffff811d92e0>] vfs_write+0xb0/0x190
    [<ffffffff811da5b4>] SyS_write+0x44/0xa0
    [<ffffffff8162c8a5>] entry_SYSCALL_64_fastpath+0x18/0xa8

Fixes: 9aa9cc4221 ("scsi: remove the disable_blk_mq host flag")
Signed-off-by: Bart Van Assche <bart.vanassche@sandisk.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Martin K. Petersen <martin.petersen@oracle.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2016-09-26 20:58:42 -04:00
..
fc fc_fip: Update to latest FC-BB-6 draft 2016-07-13 22:04:27 -04:00
fc_encode.h
fc_frame.h
fcoe_sysfs.h libfcoe, fcoe, bnx2fc: Add new fcoe control interface 2012-12-14 10:38:54 -08:00
iscsi_if.h scsi_transport_iscsi: Add 25G and 40G speed definition 2016-02-23 21:27:02 -05:00
iscsi_proto.h
iser.h IB/iser,isert: Create and use new shared header 2015-12-24 00:17:35 -05:00
libfc.h fcoe: implement FIP VLAN responder 2016-07-20 19:49:41 -04:00
libfcoe.h fcoe: implement FIP VLAN responder 2016-07-20 19:49:41 -04:00
libiscsi_tcp.h iscsi_tcp: Use ahash 2016-01-27 20:36:10 +08:00
libiscsi.h scsi: drop reason argument from ->change_queue_depth 2014-11-24 14:45:27 +01:00
libsas.h Merge remote-tracking branch 'scsi-queue/drivers-for-3.19' into for-linus 2014-12-18 05:56:29 -08:00
osd_attributes.h
osd_initiator.h Boaz Harrosh - Fix broken email address 2014-10-19 20:22:32 +03:00
osd_ore.h Boaz Harrosh - Fix broken email address 2014-10-19 20:22:32 +03:00
osd_protocol.h Boaz Harrosh - Fix broken email address 2014-10-19 20:22:32 +03:00
osd_sec.h Boaz Harrosh - Fix broken email address 2014-10-19 20:22:32 +03:00
osd_sense.h Boaz Harrosh - Fix broken email address 2014-10-19 20:22:32 +03:00
osd_types.h Boaz Harrosh - Fix broken email address 2014-10-19 20:22:32 +03:00
sas_ata.h [SCSI] sas: unify the pointlessly separated enums sas_dev_type and sas_device_type 2013-05-10 07:47:52 -07:00
sas.h scsi: Centralise ssp frame information units 2015-11-25 22:12:50 -05:00
scsi_bsg_iscsi.h
scsi_cmnd.h scsi: stop passing a gfp_mask argument down the command setup path 2014-11-24 19:56:55 +01:00
scsi_common.h scsi: add scsi_set_sense_field_pointer() 2016-04-04 12:07:42 -04:00
scsi_dbg.h scsi: remove scsi_show_sense_hdr() 2015-12-02 16:36:14 -05:00
scsi_device.h scsi: remove current_cmnd field from struct scsi_device 2016-07-13 22:33:23 -04:00
scsi_devinfo.h scsi_dh_alua: Add new blacklist flag 'BLIST_SYNC_ALUA' 2016-02-23 21:27:02 -05:00
scsi_dh.h scsi_dh: add 'rescan' callback 2016-02-23 21:27:02 -05:00
scsi_driver.h scsi: remove scsi_driver owner field 2014-11-24 20:01:28 +01:00
scsi_eh.h libata: evaluate SCSI sense code 2016-04-04 12:07:41 -04:00
scsi_host.h scsi: Avoid that toggling use_blk_mq triggers a memory leak 2016-09-26 20:58:42 -04:00
scsi_ioctl.h scsi: split scsi_nonblockable_ioctl 2014-11-12 11:16:11 +01:00
scsi_proto.h scsi-trace: define ZBC_IN and ZBC_OUT 2016-04-11 16:57:09 -04:00
scsi_tcq.h scsi: use host wide tags by default 2015-11-09 17:11:57 -08:00
scsi_transport_fc.h scsi: fc: use get/put_unaligned64 for wwn access 2016-03-18 15:29:58 -04:00
scsi_transport_iscsi.h iSCSI: let session recovery_tmo sysfs writes persist across recovery 2015-07-30 12:43:00 -07:00
scsi_transport_sas.h scsi: sas: remove is_sas_attached() 2016-08-18 22:23:20 -04:00
scsi_transport_spi.h scsi: remove abuses of scsi_populate_tag 2014-11-12 11:19:41 +01:00
scsi_transport_srp.h IB/srp: Avoid using uninitialized variable 2015-07-14 13:20:09 -04:00
scsi_transport.h scsi: use 64-bit LUNs 2014-07-17 22:07:37 +02:00
scsi.h lib: scatterlist: move SG pool code from SCSI driver to lib/sg_pool.c 2016-04-15 16:53:14 -04:00
scsicam.h
sg.h scsi: add SG_SCSI_RESET_NO_ESCALATE flag to SG_SCSI_RESET ioctl 2014-11-12 11:15:54 +01:00
srp.h IB/srp: Add 64-bit LUN support 2015-05-18 13:35:56 -04:00