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2024-03-04dm vdo logger: remove log level to string conversion codeMike Snitzer2-57/+0
Was only used by sysfs code, can be reinstated if/when needed. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Ken Raeburn <raeburn@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo: document log_level parameterKen Raeburn1-0/+7
Signed-off-by: Ken Raeburn <raeburn@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo: add 'log_level' module parameterMike Snitzer3-10/+27
Expose control over dm-vdo's log-level in terms of a module param. It can be read and written via /sys/module/dm_vdo/parameters/log_level. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Ken Raeburn <raeburn@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo: remove all sysfs interfacesMike Snitzer16-2749/+9
Also update target major version number. All info is (or will be) accessible through alternative interfaces (e.g. "dmsetup message", module params, etc). Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Ken Raeburn <raeburn@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo target: eliminate inappropriate uses of UDS_SUCCESSMike Snitzer1-7/+7
Most should be VDO_SUCCESS. But comparing the return from kstrtouint() with UDS_SUCCESS (happens to be 0) makes no sense. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo indexer: update ASSERT and ASSERT_LOG_ONLY usageMatthew Sakai10-110/+107
Update indexer uses of ASSERT and ASSERT_LOG_ONLY to VDO_ASSERT and VDO_ASSERT_LOG_ONLY, respectively. Remove ASSERT and ASSERT_LOG_ONLY. Also rename uds_assertion_failed to vdo_assertion_failed. Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo encodings: update some stale commentsMike Snitzer1-3/+1
Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo permassert: audit all of ASSERT to test for VDO_SUCCESSMike Snitzer26-558/+561
Also rename ASSERT to VDO_ASSERT and ASSERT_LOG_ONLY to VDO_ASSERT_LOG_ONLY. But re-introduce ASSERT and ASSERT_LOG_ONLY as a placeholder for the benefit of dm-vdo/indexer. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm-vdo funnel-workqueue: return VDO_SUCCESS from make_simple_work_queueMike Snitzer1-1/+1
Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo thread-utils: return VDO_SUCCESS on vdo_create_thread successMike Snitzer4-4/+4
Update all callers to check for VDO_SUCCESS. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo int-map: return VDO_SUCCESS on successMike Snitzer3-16/+12
Update all callers to check for VDO_SUCCESS (most already did). Also fix whitespace for update_mapping() parameters. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo: check for VDO_SUCCESS return value from memory-alloc functionsMike Snitzer28-82/+82
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>
2024-03-04dm vdo memory-alloc: return VDO_SUCCESS on successMike Snitzer2-16/+16
Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo errors: remove unused error codesMatthew Sakai4-51/+8
Also define VDO_SUCCESS in a more central location, and rename error block constants for clarity. Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo memory-alloc: rename vdo_do_allocation to __vdo_do_allocationMike Snitzer1-15/+15
__vdo_do_allocation shouldn't be used outside of memory-alloc.h, so add hidden prefix. Also, tabify the vdo_allocate_extended macro. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo memory-alloc: change from uds_ to vdo_ namespaceMike Snitzer44-455/+453
Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm-vdo: change unnamed enums to definesBruce Johnston25-160/+91
Signed-off-by: Bruce Johnston <bjohnsto@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo: remove outdated pointer_map referenceMatthew Sakai1-4/+1
Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo: update module commentsMatthew Sakai1-8/+3
Update outdated comments referring to separate VDO and UDS modules. Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo indexer delta-index: fix typos in commentsMatthew Sakai2-2/+2
Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo: fix various function names referenced in comment blocksJiapeng Chong8-12/+12
No functional modification involved. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo: move indexer files into sub-directoryMike Snitzer36-56/+77
The goal is to assist high-level understanding of which code is conceptually specific to VDO's indexer. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo: remove unnecessary indexer.h includesMatthew Sakai2-2/+0
Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo: clean up scnprintf usageChung Chung1-579/+239
Ignore scnprintf return status since it is not necessary. Change write_* functions type from int to void since we no longer return any result. Also, clean up any code that checks or uses any scnprintf return results. Check uds_allocate return code which was previous ignored, return and log error when uds_allocate failed. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Chung Chung <cchung@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo: include <asm/current.h> to resolve current being undeclaredMike Snitzer3-0/+3
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>
2024-03-04dm vdo indexer-volume: fix missing mutex_lock in process_entryMike Snitzer1-1/+1
Must mutex_lock after dm_bufio_read, before dm_bufio_read error handling, otherwise process_entry error path will return without volume->read_threads_mutex held. This fixes potential double mutex_unlock. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo flush: initialize return to NULL in allocate_flushMike Snitzer1-1/+1
Otherwise, error path could result in allocate_flush's subsequent check for flush being non-NULL leading to false positive. Reported-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo slab-depot: delete unnecessary check in allocate_componentsDan Carpenter1-3/+0
This is a duplicate check so it can't be true. Delete it. Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-04dm vdo memory-alloc: simplify allocations_allowed()Mike Snitzer1-4/+2
Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-04dm vdo: remove internal ticket referencesSusan LeGendre-McGhee11-39/+41
Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-03-01dm vdo thread-device: rename all methods to reflect vdo-only useMike Snitzer4-29/+27
Also moved vdo_init()'s call to vdo_initialize_thread_device_registry next to other registry initialization. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo thread-registry: rename all methods to reflect vdo-only useMike Snitzer4-21/+21
Otherwise, uds_ prefix is misleading (vdo_ is the new catch-all for code that is used by vdo-only or _both_ vdo and the indexer code). Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo thread-utils: cleanup included headersMike Snitzer3-8/+3
Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo thread-utils: further cleanup of thread functionsMike Snitzer6-21/+15
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>
2024-03-01dm vdo thread-utils: remove all uds_*_mutex wrappersMike Snitzer5-157/+96
Just use mutex_init, mutex_lock and mutex_unlock. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo thread-utils: push uds_*_cond interface down to indexerMike Snitzer6-79/+40
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>
2024-03-01dm vdo: fold thread-cond-var.c into thread-utilsMike Snitzer4-52/+34
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>
2024-03-01dm vdo indexer: rename uds.h to indexer.hMike Snitzer22-24/+23
Also remove unnecessary include from funnel-queue.c. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo: rename uds-threads.[ch] to thread-utils.[ch]Mike Snitzer14-16/+15
Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo indexer sparse-cache: cleanup threads_barrier codeMike Snitzer1-41/+19
Rename 'barrier' to 'threads_barrier', remove useless uds_destroy_barrier(), return void from remaining methods and clean up uds_make_sparse_cache() accordingly. Also remove uds_ prefix from the 2 remaining threads_barrier functions. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo uds-threads: push 'barrier' down to sparse-cacheMike Snitzer3-72/+68
The sparse-cache is the only user of the 'barrier' data structure, so just move it private to it. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo uds-threads: eliminate uds_*_semaphore interfacesMike Snitzer2-44/+15
The implementation of thread 'barrier' data structure does not require overdone private semaphore wrappers. Also rename the barrier structure's 'mutex' member (a semaphore) to 'lock'. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo: make uds_*_semaphore interface private to uds-threads.cMike Snitzer2-37/+39
Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo block-map: rename page state name from "UDS_FREE" to "FREE"Mike Snitzer1-1/+1
Only used for log message, but no need for "UDS_" prefix. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-03-01dm vdo volume-index: fix an assert statement in ↵Harshit Mogalapalli1-1/+1
start_restoring_volume_sub_index() Use "==" instead of "=" in ASSERT() statement. Fixes: ef074a31e88e ("dm vdo: implement the volume index") Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com> Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com> Signed-off-by: Mike Snitzer <snitzer@kernel.org>
2024-02-20dm vdo logger: update logging to start with "device-mapper: vdo"Mike Snitzer2-10/+8
Stops short of actually using DM's various logging macros (e.g. DMERR, DMINFO, etc) because VDO's logger isn't quite compatible with them. Also switch emit_log_message_to_kernel() from open-coding printk with log-level to using corresponding pr_ macro. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Bruce Johnston <bjohnsto@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-02-20dm vdo logger: switch UDS_LOG_NOTICE to be alias for UDS_LOG_INFOMike Snitzer3-8/+1
Prepare to bring VDO's logging closer to DM's logging by eliminating support for KERN_NOTICE log level (DM hasn't ever had a need for it). Only one message in index-session.c used UDS_LOG_NOTICE, convert it to log with uds_log_info(). Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Bruce Johnston <bjohnsto@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-02-20dm vdo: tweak wait_for_completion_interruptible callersMike Snitzer2-5/+6
Update uds_join_threads to delay in wait_for_completion_interruptible loop. And cleanup style nits in perform_admin_operation(). Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-02-20dm vdo delta-index: fix various small nitsMike Snitzer2-14/+11
Fix some needless line wrapping (given surrounding context), missing braces and some stale or incorrect references to data structure or function name. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
2024-02-20dm vdo chapter_index: fix a few small nitsMike Snitzer1-4/+5
Add missing braces and raise one function arg up a line to eliminate line wrap. Signed-off-by: Mike Snitzer <snitzer@kernel.org> Signed-off-by: Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by: Matthew Sakai <msakai@redhat.com>
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