- 01 Mar, 2024 4 commits
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Mike Snitzer authored
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>
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Mike Snitzer authored
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Mike Snitzer authored
Only used for log message, but no need for "UDS_" prefix. Signed-off-by:
Susan LeGendre-McGhee <slegendr@redhat.com> Signed-off-by:
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Harshit Mogalapalli authored
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:
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- 20 Feb, 2024 36 commits
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Mike Snitzer authored
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:
Bruce Johnston <bjohnsto@redhat.com> Signed-off-by:
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Mike Snitzer authored
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:
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Mike Snitzer authored
Update uds_join_threads to delay in wait_for_completion_interruptible loop. And cleanup style nits in perform_admin_operation(). Signed-off-by:
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Mike Snitzer authored
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:
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Mike Snitzer authored
Add missing braces and raise one function arg up a line to eliminate line wrap. Signed-off-by:
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Mike Snitzer authored
Use /* ... */ rather than /** ... */ if for no other reason than syntax highlighting is improved (at least for me, in emacs: comments are now red, code is yellow. Previously comments were also yellow). Signed-off-by:
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Mike Snitzer authored
Add a __must_hold sparse annotation to launch_dedupe_state_change that reflects its ASSERTION code comments about locking requirements, add some extra braces and fix a couple typos. Signed-off-by:
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Mike Snitzer authored
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Ken Raeburn authored
Signed-off-by:
Ken Raeburn <raeburn@redhat.com> Signed-off-by:
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Mike Snitzer authored
Avoids unconventional use of 'static const' and enum in headers. Signed-off-by:
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Susan LeGendre-McGhee authored
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Matthew Sakai authored
Add details describing the vdo zone and thread model to the documentation comments for major vdo components. Also added some high-level description of the block map structure. Signed-off-by:
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Matthew Sakai authored
Add more documentation details for most aspects of the data_vio read and write processes. Also correct a few minor errors and rewrite some text for clarity. Signed-off-by:
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Matthew Sakai authored
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Mike Snitzer authored
Only one user of WRITE_FLAGS so no need to factor it out in an enum (which causes sparse's 'mixed bitwiseness' warning). Just use the flags in the only consumer. Signed-off-by:
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Mike Snitzer authored
Annotate both open_index() and close_index() with __must_hold(&zones->lock) to silence these sparse warnings: warning: context imbalance in 'close_index' - unexpected unlock warning: context imbalance in 'open_index' - unexpected unlock Signed-off-by:
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Mike Snitzer authored
Factor wait_permit() out from acquire_permit() so that the latter always holds the spinlock and the former always releases it. Otherwise sparse complains about locking context imbalances due to conditional spin_unlock in acquire_permit: warning: context imbalance in 'acquire_permit' - different lock contexts for basic block warning: context imbalance in 'vdo_launch_bio' - unexpected unlock Signed-off-by:
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Mike Snitzer authored
Use proper blk_opf_t type rather than unsigned int. Signed-off-by:
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Mike Snitzer authored
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Mike Snitzer authored
Addresses various sparse warnings like: warning: symbol 'SYMBOL' was not declared. Should it be static? Signed-off-by:
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Mike Snitzer authored
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Mike Snitzer authored
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Mike Snitzer authored
Add braces around multi-line while loops and if statements. Also remove excess newlines. Signed-off-by:
Chung Chung <cchung@redhat.com> Signed-off-by:
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Mike Snitzer authored
Remove extra blank line, mark function inline, add missing braces, and fix a typo in a comment. Signed-off-by:
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Mike Snitzer authored
Comment typo, whitespace issues, mark function inline. Signed-off-by:
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Mike Snitzer authored
Eliminate use of "trim" in favor of "discard" since it reflects the top-level Linux discard primative rather than the ATA specific ditto. Signed-off-by:
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Mike Snitzer authored
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Mike Snitzer authored
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Mike Snitzer authored
No need to increment each UDS_ error code manually (relative to UDS_ERROR_CODE_BASE). Also, remove unused PRP_BLOCK_START and PRP_BLOCK_END. Lastly, UDS_SUCCESS and VDO_SUCCESS are used interchangeably; so best to explicitly set VDO_SUCCESS equal to UDS_SUCCESS. Signed-off-by:
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Mike Snitzer authored
'completion' is more informative name for a 'struct vdo_completion' than 'parent'. Signed-off-by:
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Mike Snitzer authored
The vdo_page_cache's 'vdo' is the same as the block_map's vdo instance, so use that to save 2 extra dereferences. Signed-off-by:
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Mike Snitzer authored
The block_map is passed to initialize_block_map_zone, but the block_map's vdo member is already initialized with the same vdo instance, so just use it. Signed-off-by:
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Mike Snitzer authored
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Mike Snitzer authored
Rename 'pages' to 'num_pages' in distribute_page_over_waitq(). Update assert message in validate_completed_page() to model others. Tweak line-wrapping on a comment that was needlessly long. Signed-off-by:
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Mike Snitzer authored
Requires moving dm-vdo-target.c into drivers/md/dm-vdo/ This change adds a proper drivers/md/dm-vdo/Makefile and eliminates the abnormal use of patsubst in drivers/md/Makefile -- which was the cause of at least one build failure that was reported by the upstream build bot. Also, split out VDO's drivers/md/dm-vdo/Kconfig and include it from drivers/md/Kconfig Signed-off-by:
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Mike Snitzer authored
dm_kcopyd_client_create() returns an ERR_PTR so its return must be checked with IS_ERR(). Signed-off-by:
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