Nicholas Bellinger 7c2bf6e925 [SCSI] target: Fix top-level configfs_subsystem default_group shutdown breakage ... This patch fixes two bugs uncovered during testing with slub_debug=FPUZ during module_exit() -> target_core_exit_configfs() with release of configfs subsystem consumer default groups, namely how this should be working with fs/configfs/dir.c:configfs_unregister_subsystem() release logic for struct config_group->default_group. The first issue involves configfs_unregister_subsystem() expecting to walk+drain the top-level subsys->su_group.default_groups directly in unlink_group(), and not directly from the configfs subsystem consumer for the top level struct config_group->default_groups. This patch drops the walk+drain of subsys->su_group.default_groups from TCM configfs subsystem consumer code, and moves the top-level ->default_groups kfree() after configfs_unregister_subsystem() has been called. The second issue involves calling core_alua_free_lu_gp(se_global->default_lu_gp) to release the default_lu_gp->lu_gp_group before configfs_unregister_subsystem() has been called. This patches also moves the core_alua_free_lu_gp() call to release default_lu_group->lu_gp_group after the subsys has been unregistered. Finally, this patch explictly clears the [lu_gp,alua,hba]_cg->default_groups pointers after kfree() to ensure that no stale memory is picked up from child struct config_group->default_group[] while configfs_unregister_subsystem() is called. Reported-by: Fubo Chen <fubo.chen@gmail.com> Signed-off-by: Nicholas A. Bellinger <nab@linux-iscsi.org> Signed-off-by: James Bottomley <James.Bottomley@suse.de>		2011-02-12 11:39:14 -06:00
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Kconfig
Makefile
target_core_alua.c
target_core_alua.h
target_core_cdb.c
target_core_configfs.c	[SCSI] target: Fix top-level configfs_subsystem default_group shutdown breakage	2011-02-12 11:39:14 -06:00
target_core_device.c	[SCSI] target: fixed missing lock drop in error path	2011-02-12 11:38:17 -06:00
target_core_fabric_configfs.c
target_core_fabric_lib.c
target_core_file.c
target_core_file.h
target_core_hba.c
target_core_hba.h
target_core_iblock.c	[SCSI] target/iblock: Fix failed bd claim NULL pointer dereference	2011-02-12 11:37:00 -06:00
target_core_iblock.h
target_core_mib.c
target_core_mib.h
target_core_pr.c
target_core_pr.h
target_core_pscsi.c
target_core_pscsi.h
target_core_rd.c
target_core_rd.h
target_core_scdb.c
target_core_scdb.h
target_core_tmr.c
target_core_tpg.c
target_core_transport.c
target_core_ua.c
target_core_ua.h