Hi nab, hch, and all,
This patchset reduces the amount of memory for se_dev_entry and se_lun
arrays by waiting to allocate array members until they are
created. This patch saves up to 261KB per TPG, and up to 65KB per
ACL. It also fixes a number of locking bugs around these data
structures.
Changes since v2, based on hch's review:
* Fix braces and add precondition checking in
core_enable_device_list_for_node() in patch 2
* Move busy-loop outside of spinlock in
core_disable_device_list_for_node() in patch 3
* Merge patches 5 and 6
Against target-pending/for-next (3.16-rc2).
Thanks -- Regards -- Andy
Andy Grover (8):
target: Add locking to some accesses to nacl.device_list
target: Don't unlock/relock tpg_lun_lock in loop in add_node_to_devs
target: Allocate se_dev_entrys in device list only when used
target: core_tpg_post_dellun can return void
target: Change core_dev_del_lun to take a se_lun instead of
unpacked_lun
target: Allocate se_luns only when used
target: Remove core_tpg_release_virtual_lun0 function
target: Refactor core_enable_device_list_for_node
drivers/target/sbp/sbp_target.c | 6 +-
drivers/target/target_core_device.c | 313 +++++++++++++--------------
drivers/target/target_core_fabric_configfs.c | 35 +--
drivers/target/target_core_internal.h | 9 +-
drivers/target/target_core_pr.c | 40 +++-
drivers/target/target_core_spc.c | 2 +-
drivers/target/target_core_tpg.c | 189 +++-------------
drivers/target/target_core_ua.c | 3 +
include/target/target_core_base.h | 17 +-
9 files changed, 248 insertions(+), 366 deletions(-)
--
1.9.3
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