Mike Gerdts 421fb11094 blob_bdev: defer free until all channels destroyed ... To avoid races that lead to use-after-free errors during esnap device hot add/remove, we need a way to ensure that the destroy callback does not free a bs_dev until all consumers are done. This adds reference counting to the create_channel() and destroy_channel() callbacks. The reference couunt is initialized to 1 and is decremented by destroy(). The destroy() and destroy_channel() callbacks are updated to free the bs_dev only when the reference count drops to 0. Signed-off-by: Mike Gerdts <mgerdts@nvidia.com> Change-Id: Ie0b873717e431b33ce6548f878643dbc66d4f956 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/16422 Reviewed-by: Ben Walker <benjamin.walker@intel.com> Community-CI: Mellanox Build Bot Reviewed-by: Jim Harris <james.r.harris@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>		2023-03-28 03:57:35 +00:00
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blob_bdev.c	blob_bdev: defer free until all channels destroyed	2023-03-28 03:57:35 +00:00
Makefile	so_ver: increase all major versions	2023-01-24 08:37:21 +00:00
spdk_blob_bdev.map	remove spdk_bdev_create_bs_dev_from_desc from map file	2022-11-09 08:19:04 +00:00