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Jiang Yi 75ee360a51 target/file: Do not return error for UNMAP if length is zero 
[ Upstream commit 594e25e734 ]

The function fd_execute_unmap() in target_core_file.c calles

ret = file->f_op->fallocate(file, mode, pos, len);

Some filesystems implement fallocate() to return error if
length is zero (e.g. btrfs) but according to SCSI Block
Commands spec UNMAP should return success for zero length.

Signed-off-by: Jiang Yi <jiangyilism@gmail.com>
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Sasha Levin <alexander.levin@verizon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-20 10:04:58 +01:00
..
iscsi iscsi-target: fix memory leak in lio_target_tiqn_addtpg() 2017-12-20 10:04:58 +01:00
loopback SCSI misc on 20151113 2015-11-13 20:35:54 -08:00
sbp target: use per-attribute show and store methods 2015-10-13 22:17:49 -07:00
tcm_fc target: use per-attribute show and store methods 2015-10-13 22:17:49 -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 target: fix race during implicit transition work flushes 2017-12-20 10:04:57 +01:00
target_core_alua.h target: Subsume se_port + t10_alua_tg_pt_gp_member into se_lun 2015-06-01 00:26:38 -07:00
target_core_configfs.c target: use per-attribute show and store methods 2015-10-13 22:17:49 -07:00
target_core_device.c target: Fix NULL dereference during LUN lookup + active I/O shutdown 2017-03-15 09:57:14 +08:00
target_core_fabric_configfs.c target: Avoid mappedlun symlink creation during lun shutdown 2017-08-11 09:08:49 -07:00
target_core_fabric_lib.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
target_core_file.c target/file: Do not return error for UNMAP if length is zero 2017-12-20 10:04:58 +01:00
target_core_file.h target/file: Remove fd_prot bounce buffer 2015-05-30 22:41:42 -07:00
target_core_hba.c target: Fix target_sense_desc_format NULL pointer dereference 2015-09-24 23:17:23 -07:00
target_core_iblock.c target: Fix max_unmap_lba_count calc overflow 2016-08-20 18:09:26 +02:00
target_core_iblock.h
target_core_internal.h target: Fix kref->refcount underflow in transport_cmd_finish_abort 2017-06-29 12:48:51 +02:00
target_core_pr.c target:fix condition return in core_pr_dump_initiator_port() 2017-12-20 10:04:58 +01:00
target_core_pr.h target: use 64-bit LUNs 2015-06-15 23:26:01 -07:00
target_core_pscsi.c target/pscsi: Fix TYPE_TAPE + TYPE_MEDIMUM_CHANGER export 2017-03-26 12:13:19 +02:00
target_core_pscsi.h SCSI misc on 20150622 2015-06-23 15:55:44 -07:00
target_core_rd.c Merge branch 'for-4.3/sg' of git://git.kernel.dk/linux-block 2015-09-02 13:22:38 -07:00
target_core_rd.h
target_core_sbc.c target: Fix compare_and_write_callback handling for non GOOD status 2017-05-20 14:26:58 +02:00
target_core_spc.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-09-11 19:00:42 -07:00
target_core_stat.c target/stat: print full t10_wwn.model buffer 2015-11-28 21:23:13 -08:00
target_core_tmr.c target: Fix kref->refcount underflow in transport_cmd_finish_abort 2017-06-29 12:48:51 +02:00
target_core_tpg.c target: Fix node_acl demo-mode + uncached dynamic shutdown regression 2017-11-18 11:11:07 +01:00
target_core_transport.c target: Fix QUEUE_FULL + SCSI task attribute handling 2017-11-30 08:37:22 +00:00
target_core_ua.c Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2015-07-04 14:13:43 -07:00
target_core_ua.h target: Send UA when changing LUN inventory 2015-06-23 00:43:02 -07:00
target_core_user.c target/user: Fix use-after-free of tcmu_cmds if they are expired 2017-01-09 08:07:53 +01:00
target_core_xcopy.c target: Use correct SCSI status during EXTENDED_COPY exception 2017-02-14 15:22:51 -08:00
target_core_xcopy.h