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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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This fixes the subvol loop checking and directory loop checking to print
the loop.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Detect buckets with missing backpointers, and run repair on demand.
__bch2_move_data_phys() now calls
bch2_check_bucket_backpointer_mismatch() as it walks buckets, which
checks for missing backpointers by comparing backpointers against bucket
sector counts.
When missing backpointers are detected, we kick off
bch2_check_extents_to_backpointers() asynchronously - right away if
we're trying to evacuate, or with a threshold if we're just running
copygc.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Add some more helpers, and mismatches is now a superset of the empty
bitmap - simplifies most checks.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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When we request a recovery pass to be run online, i.e. not during
recovery, if it's an online pass it'll now be run in the background,
instead of waiting for the next mount.
To avoid situations where recovery passes are running continuously, this
also includes ratelimiting: if the RUN_RECOVERY_PASS_ratelimit flag is
passed, the pass may be deferred until later - depending on the runtime
and last run stats in the recovery_passes superblock section.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Consolidate the run_explicit_recovery_pass() interfaces by adding a
flags parameter; this will also let us add a RUN_RECOVERY_PASS_ratelimit
flag.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Show recovery pass status in sysfs - important now that we're running
them automatically in the background.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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We want recovery.curr_pass to be private to the recovery passes code,
for better showing recovery pass status; also, it may rewind and is
generally not the correct member to use.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Consolidate bch2_run_recovery_passes() and
bch2_run_online_recovery_passes(), prep work for automatically
scheduling and running recovery passes in the background.
- Now takes a mask of which passes to run, automatic background repair
will pass in sb.recovery_passes_required.
- Skips passes that are failing: a pass that failed may be reattempted
after another pass succeeds (some passes depend on repair done by
other passes for successful completion).
- bch2_recovery_passes_match() helper to skip alloc passes on a
filesystem without alloc info.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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bch_fs has gotten obnoxiously big, let's start organizing thins a bit
better.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Avoid doing more updates if we already have one.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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This ensures that our pending rebalance work accounting is accurate
quickly.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Improve this so it can be used by fsck.c check_inode(); it provides a
much better error message than the check_inode() version.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Factor out a small common helper.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Alan Huang <mmpgouride@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Alan Huang <mmpgouride@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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We weren't checking if the option changed for non-superblock options -
this led to rebalance not waking up when enabling the
"rebalance_enabled" option.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Failing to check the return value of bch2_dev_rcu(): we could
(technically) race with device removal.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Internal moves shouldn't add new rebalance_work, but it's been reported
that this seems to be happening. Add a tracepoint and counter so we can
see what's going on.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Small cleanup/simplification, and prep work for the next patch, which
will add checking if buckets don't get evacuated because they're missing
backpointers.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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More error message cleanup: instead of multiple printk()s per error, we
want to be building up a single error message in a printbuf, so that it
can be printed with indenting that shows grouping and avoid errors
getting interspersed or lost in the log.
This gets rid of most calls to bch2_fs_emergency_read_only(). We still
have calls to
- bch2_fatal_error()
- bch2_fs_fatal_error()
- bch2_fs_fatal_err_on()
that need work.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Slightly more readable.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Don't put btree locking asserts behind CONFIG_BCACHEFS_DEBUG, put them
behind a module parameter.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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We'd like users to be able to debug without building custom kernels, so
this will help us get rid of CONFIG_BCACHEFS_DEBUG, at least for most
things.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Prep work for automatically running recovery passes asynchronously.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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New superblock section for statistics on recovery passes - last time
ran (successfully), last runtime.
This will be used by self healing code to determine when to kick off
potentially expensive recovery passes.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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More self healing work: we're going to be calling
check_bucket_backpointer_mismatch() at runtime, outside of fsck.
Then when we need to we'll kick off the full
check_extents_to_backpointers recovery pass.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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copygc runs with a full stack available, there's no reason to
dynamically allocate this.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Factor out the per-device calculations, for better introspection.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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fix debug build in userspace
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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Add 'opts.snapshot_deletion_enabled', enabled by default.
This may be turned off so that the new sysfs knob,
'internal/trigger_delete_dead_snapshots', may be used instead - this
will allow snapshot deletion to be profiled more easily.
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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