linux.git/fs/bcachefs/debug.c, branch v6.8 Linux kernel source tree bcachefs: Add gfp flags param to bch2_prt_task_backtrace() 2024-01-22T17:37:51+00:00 Kent Overstreet kent.overstreet@linux.dev 2024-01-22T17:25:00+00:00 612e1110d689387aab81b2727895cd307d3cbbfd Fixes: e6a2566f7a00 ("bcachefs: Better journal tracepoints") Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> Reported-by: smatch 
Fixes: e6a2566f7a00 ("bcachefs: Better journal tracepoints")
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
Reported-by: smatch
bcachefs: Prep work for variable size btree node buffers 2024-01-21T18:27:10+00:00 Kent Overstreet kent.overstreet@linux.dev 2024-01-16T18:29:59+00:00 ec4edd7b9d2038a97e0ba3fad8fc8492b0d12d35 bcachefs btree nodes are big - typically 256k - and btree roots are pinned in memory. As we're now up to 18 btrees, we now have significant memory overhead in mostly empty btree roots. And in the future we're going to start enforcing that certain btree node boundaries exist, to solve lock contention issues - analagous to XFS's AGIs. Thus, we need to start allocating smaller btree node buffers when we can. This patch changes code that refers to the filesystem constant c->opts.btree_node_size to refer to the btree node buffer size - btree_buf_bytes() - where appropriate. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 
bcachefs btree nodes are big - typically 256k - and btree roots are
pinned in memory. As we're now up to 18 btrees, we now have significant
memory overhead in mostly empty btree roots.

And in the future we're going to start enforcing that certain btree node
boundaries exist, to solve lock contention issues - analagous to XFS's
AGIs.

Thus, we need to start allocating smaller btree node buffers when we
can. This patch changes code that refers to the filesystem constant
c->opts.btree_node_size to refer to the btree node buffer size -
btree_buf_bytes() - where appropriate.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
bcachefs: Improve would_deadlock trace event 2024-01-06T04:24:21+00:00 Kent Overstreet kent.overstreet@linux.dev 2024-01-04T23:59:17+00:00 c13fbb7de2fc4fd61a44ebfa4ba182f35e0a3286 We now include backtraces for every thread involved in the cycle. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 
We now include backtraces for every thread involved in the cycle.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
bcachefs: kill useless return ret 2024-01-06T04:24:20+00:00 Kent Overstreet kent.overstreet@linux.dev 2024-01-03T18:44:43+00:00 8a0dda6fd6b7af2a7aa797762148b8ecb8f47a67 Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
bcachefs: track transaction durations 2024-01-06T04:24:19+00:00 Kent Overstreet kent.overstreet@linux.dev 2023-12-24T03:43:33+00:00 89056f245bce2cb833726927783337c5dc59eac0 Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
bcachefs: optimize __bch2_trans_get(), kill DEBUG_TRANSACTIONS 2024-01-01T16:47:44+00:00 Kent Overstreet kent.overstreet@linux.dev 2023-12-11T16:11:22+00:00 31403dca5bb1e55ea0ea6ad1264b81fa8c9a3768 - Some tweaks to greatly reduce locking overhead for the list of btree transactions, so that it can always be enabled: leave btree_trans objects on the list when they're on the percpu single item freelist, and only check for duplicates in the same process when CONFIG_BCACHEFS_DEBUG is enabled - don't zero out the full btree_trans() unless we allocated it from the mempool Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 
 - Some tweaks to greatly reduce locking overhead for the list of btree
   transactions, so that it can always be enabled: leave btree_trans
   objects on the list when they're on the percpu single item freelist,
   and only check for duplicates in the same process when
   CONFIG_BCACHEFS_DEBUG is enabled

 - don't zero out the full btree_trans() unless we allocated it from
   the mempool

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
bcachefs: btree_iter -> btree_path_idx_t 2024-01-01T16:47:43+00:00 Kent Overstreet kent.overstreet@linux.dev 2023-12-04T05:39:38+00:00 07f383c71fadc952059ed4ffe37dd465bda4ad3e Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
bcachefs: for_each_btree_key() now declares loop iter 2024-01-01T16:47:42+00:00 Kent Overstreet kent.overstreet@linux.dev 2023-12-17T03:30:09+00:00 80eab7a7c2808f84e56ba1f2f1408a16c46d3bdc Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
bcachefs: Rename for_each_btree_key2() -> for_each_btree_key() 2024-01-01T16:47:40+00:00 Kent Overstreet kent.overstreet@linux.dev 2023-12-08T04:33:11+00:00 5028b9078ccb02ead012056dcbcc4f27f963b212 Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
bcachefs: Fix bch2_read_btree() 2024-01-01T16:47:40+00:00 Kent Overstreet kent.overstreet@linux.dev 2023-12-08T04:50:38+00:00 be1fa63de867aa26f2f57e6f5db2a358f6da5ad1 In the debugfs code, we had an incorrect use of drop_locks_do(); on transaction restart we don't want to restart the current loop iteration, since we've already emitted the current key to the buffer for userspace. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev> 
In the debugfs code, we had an incorrect use of drop_locks_do(); on
transaction restart we don't want to restart the current loop iteration,
since we've already emitted the current key to the buffer for userspace.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>