dm vdo: remove vdo_perform_once

Remove obsolete function vdo_perform_once. Instead, initialize
necessary module state when loading the module.

Signed-off-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>

dm vdo logger: change from uds_ to vdo_ namespace

Rename all uds_log_* to vdo_log_*.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Chung Chung <cchung@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>

dm vdo thread-utils: return VDO_SUCCESS on vdo_create_thread success

Update all callers to check for VDO_SUCCESS.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>

dm vdo: check for VDO_SUCCESS return value from memory-alloc functions

VDO_SUCCESS and UDS_SUCCESS were used interchangably, update all
callers of VDO's memory-alloc functions to consistently check for
VDO_SUCCESS.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>

dm vdo memory-alloc: change from uds_ to vdo_ namespace

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>

dm-vdo: change unnamed enums to defines

Signed-off-by: Bruce Johnston <bjohnsto@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>

dm vdo: include <asm/current.h> to resolve current being undeclared

Reported when building on loongarch.

Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Bruce Johnston <bjohnsto@redhat.com>
Signed-off-by: Matthew Sakai <msakai@redhat.com>

dm vdo thread-utils: cleanup included headers

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>

dm vdo thread-utils: further cleanup of thread functions

Change thread function prefix from "uds_" to "vdo_" and fix
vdo_join_threads() to return void.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>

dm vdo thread-utils: push uds_*_cond interface down to indexer

Only used by indexer components. Also return void from
uds_init_cond(), remove uds_destroy_cond(), and fix up
all callers.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>

dm vdo: fold thread-cond-var.c into thread-utils

Further cleanup is needed for thread-utils interfaces given many
functions should return void or be removed entirely because they
amount to obfuscation via wrappers.

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>

dm vdo: rename uds-threads.[ch] to thread-utils.[ch]

Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Matthew Sakai <msakai@redhat.com>