This is the first patch of a series that replaces single global write
buffer with per-io_channel buffers. This change is intended to improve
performance for multithreaded workloads.
This patch changes the way the ftl_io_channels are allocated by only
keeping an ftl_io_channel pointer inside spdk_io_channel's context. It
allows for delaying IO channel destruction, which in turn allows the FTL
to iterate over all exisiting IO channels without locking.
Change-Id: I5e0cab8043a2b5f747e971dd3d65ed2546c8cf26
Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/900
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Wojciech Malikowski <wojciech.malikowski@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
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