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2024-01-29scsi: ch: Have midlayer retry ch_do_scsi() UAsMike Christie1-10/+15
This has ch_do_scsi() have the SCSI midlayer retry UAs instead of driving them itself. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-12-michael.christie@oracle.com Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-29scsi: ch: Remove unit_attentionMike Christie1-2/+0
unit_attention is not used so remove it. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-11-michael.christie@oracle.com Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-29scsi: sd: Have midlayer retry sd_sync_cache() errorsMike Christie1-18/+17
This has sd_sync_cache() have the SCSI midlayer retry errors instead of driving them itself. There is one behavior change where we no longer retry when scsi_execute_cmd() returns < 0, but we should be ok. We don't need to retry for failures like the queue being removed, and for the case where there are no tags/reqs the block layer waits/retries for us. For possible memory allocation failures from blk_rq_map_kern() we use GFP_NOIO, so retrying will probably not help. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-10-michael.christie@oracle.com Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-29scsi: spi: Have midlayer retry spi_execute() UAsMike Christie1-17/+18
This has spi_execute() have the SCSI midlayer retry UAs instead of driving them. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-9-michael.christie@oracle.com Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-29scsi: device_handler: rdac: Have midlayer retry send_mode_select() errorsMike Christie1-38/+46
This has rdac have the SCSI midlayer retry errors instead of driving them itself. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-8-michael.christie@oracle.com Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-29scsi: device_handler: hp_sw: Have midlayer retry scsi_execute_cmd() errorsMike Christie1-16/+33
This has hp_sw have the SCSI midlayer retry scsi_execute_cmd() errors instead of driving them itself. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-7-michael.christie@oracle.com Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-29scsi: sd: Have midlayer retry sd_spinup_disk() errorsMike Christie1-32/+45
This simplifies sd_spinup_disk() so the SCSI midlayer retries errors for it. Note that we retried every UA except Medium Not Present and also if scsi_status_is_good() returned failed which would happen for all check conditions. In this patch we use SCMD_FAILURE_STAT_ANY which will trigger for the same conditions as when scsi_status_is_good() returns false and there is status. This will cover all CCs including UAs so there is no explicit failures array entry for UAs except for Medium Not Present which we don't want to retry. There is one behavior change where we no longer retry when scsi_execute_cmd() returns < 0, but we should be ok. We don't need to retry for failures like the queue being removed, and for the case where there are no tags/reqs the block layer waits/retries for us. For possible memory allocation failures from blk_rq_map_kern() we use GFP_NOIO, so retrying will probably not help. We do not handle the outside loop's retries because we want to sleep between tries and we don't support that yet. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-6-michael.christie@oracle.com Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-29scsi: sd: Use separate buf for START_STOP in sd_spinup_disk()Mike Christie1-7/+9
We currently reuse the cmd buffer for the TUR and START_STOP commands which requires us to reset the buffer when retrying. This has us use separate buffers for the 2 commands so we can make them const and I think it makes it easier to handle for retries but does not add too much extra to the stack use. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-5-michael.christie@oracle.com Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: John Garry <john.g.garry@oracle.com> Reviewed-by: Martin Wilck <mwilck@suse.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-29scsi: core: Retry INQUIRY after timeoutMike Christie1-0/+4
Description from: Martin Wilck <mwilck@suse.com>: The SCSI mid layer doesn't retry commands after DID_TIME_OUT (see scsi_noretry_cmd()). Packet loss in the fabric can cause spurious timeouts during SCSI device probing, causing device probing to fail. This has been observed in FCoE uplink failover tests, for example. This patch fixes the issue by retrying the INQUIRY. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-4-michael.christie@oracle.com Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Martin Wilck <mwilck@suse.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-29scsi: core: Have midlayer retry scsi_probe_lun() errorsMike Christie1-18/+28
This has scsi_probe_lun() ask the SCSI midlayer to retry UAs instead of driving them itself. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-3-michael.christie@oracle.com Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-29scsi: core: Allow passthrough to request midlayer retriesMike Christie2-3/+143
For passthrough we don't retry any error which we get a check condition for. This results in a lot of callers driving their own retries for all UAs, specific UAs, NOT_READY, specific sense values or any type of failure. This adds the core code to allow passthrough users to specify what errors they want the SCSI midlayer to retry for them. We can then convert users to drop a lot of their sense parsing and retry handling. Signed-off-by: Mike Christie <michael.christie@oracle.com> Link: https://lore.kernel.org/r/20240123002220.129141-2-michael.christie@oracle.com Reviewed-by: John Garry <john.g.garry@oracle.com> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
2024-01-21Linux 6.8-rc1Linus Torvalds1-2/+2
2024-01-21bcachefs: Improve inode_to_text()Kent Overstreet1-7/+18
Add line breaks - inode_to_text() is now much easier to read. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: logged_ops_format.hKent Overstreet2-27/+31
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: reflink_format.hKent Overstreet3-47/+48
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs; extents_format.hKent Overstreet2-279/+284
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: ec_format.hKent Overstreet2-16/+20
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: subvolume_format.hKent Overstreet2-32/+36
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: snapshot_format.hKent Overstreet2-33/+37
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: alloc_background_format.hKent Overstreet2-93/+94
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: xattr_format.hKent Overstreet2-15/+20
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: dirent_format.hKent Overstreet2-39/+43
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: inode_format.hKent Overstreet2-164/+167
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs; quota_format.hKent Overstreet2-42/+48
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: sb-counters_format.hKent Overstreet2-95/+100
bcachefs_format.h has gotten too big; let's do some organizing. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: counters.c -> sb-counters.cKent Overstreet5-8/+7
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: comment bch_subvolumeKent Overstreet1-0/+3
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: bch_snapshot::btimeKent Overstreet2-0/+3
Add a field to bch_snapshot for creation time; this will be important when we start exposing the snapshot tree to userspace. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: add missing __GFP_NOWARNKent Overstreet1-1/+1
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: opts->compression can now also be applied in the backgroundKent Overstreet11-23/+24
The "apply this compression method in the background" paths now use the compression option if background_compression is not set; this means that setting or changing the compression option will cause existing data to be compressed accordingly in the background. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Prep work for variable size btree node buffersKent Overstreet18-97/+87
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>
2024-01-21bcachefs: grab s_umount only if snapshottingSu Yue1-6/+5
When I was testing mongodb over bcachefs with compression, there is a lockdep warning when snapshotting mongodb data volume. $ cat test.sh prog=bcachefs $prog subvolume create /mnt/data $prog subvolume create /mnt/data/snapshots while true;do $prog subvolume snapshot /mnt/data /mnt/data/snapshots/$(date +%s) sleep 1s done $ cat /etc/mongodb.conf systemLog: destination: file logAppend: true path: /mnt/data/mongod.log storage: dbPath: /mnt/data/ lockdep reports: [ 3437.452330] ====================================================== [ 3437.452750] WARNING: possible circular locking dependency detected [ 3437.453168] 6.7.0-rc7-custom+ #85 Tainted: G E [ 3437.453562] ------------------------------------------------------ [ 3437.453981] bcachefs/35533 is trying to acquire lock: [ 3437.454325] ffffa0a02b2b1418 (sb_writers#10){.+.+}-{0:0}, at: filename_create+0x62/0x190 [ 3437.454875] but task is already holding lock: [ 3437.455268] ffffa0a02b2b10e0 (&type->s_umount_key#48){.+.+}-{3:3}, at: bch2_fs_file_ioctl+0x232/0xc90 [bcachefs] [ 3437.456009] which lock already depends on the new lock. [ 3437.456553] the existing dependency chain (in reverse order) is: [ 3437.457054] -> #3 (&type->s_umount_key#48){.+.+}-{3:3}: [ 3437.457507] down_read+0x3e/0x170 [ 3437.457772] bch2_fs_file_ioctl+0x232/0xc90 [bcachefs] [ 3437.458206] __x64_sys_ioctl+0x93/0xd0 [ 3437.458498] do_syscall_64+0x42/0xf0 [ 3437.458779] entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 3437.459155] -> #2 (&c->snapshot_create_lock){++++}-{3:3}: [ 3437.459615] down_read+0x3e/0x170 [ 3437.459878] bch2_truncate+0x82/0x110 [bcachefs] [ 3437.460276] bchfs_truncate+0x254/0x3c0 [bcachefs] [ 3437.460686] notify_change+0x1f1/0x4a0 [ 3437.461283] do_truncate+0x7f/0xd0 [ 3437.461555] path_openat+0xa57/0xce0 [ 3437.461836] do_filp_open+0xb4/0x160 [ 3437.462116] do_sys_openat2+0x91/0xc0 [ 3437.462402] __x64_sys_openat+0x53/0xa0 [ 3437.462701] do_syscall_64+0x42/0xf0 [ 3437.462982] entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 3437.463359] -> #1 (&sb->s_type->i_mutex_key#15){+.+.}-{3:3}: [ 3437.463843] down_write+0x3b/0xc0 [ 3437.464223] bch2_write_iter+0x5b/0xcc0 [bcachefs] [ 3437.464493] vfs_write+0x21b/0x4c0 [ 3437.464653] ksys_write+0x69/0xf0 [ 3437.464839] do_syscall_64+0x42/0xf0 [ 3437.465009] entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 3437.465231] -> #0 (sb_writers#10){.+.+}-{0:0}: [ 3437.465471] __lock_acquire+0x1455/0x21b0 [ 3437.465656] lock_acquire+0xc6/0x2b0 [ 3437.465822] mnt_want_write+0x46/0x1a0 [ 3437.465996] filename_create+0x62/0x190 [ 3437.466175] user_path_create+0x2d/0x50 [ 3437.466352] bch2_fs_file_ioctl+0x2ec/0xc90 [bcachefs] [ 3437.466617] __x64_sys_ioctl+0x93/0xd0 [ 3437.466791] do_syscall_64+0x42/0xf0 [ 3437.466957] entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 3437.467180] other info that might help us debug this: [ 3437.469670] 2 locks held by bcachefs/35533: other info that might help us debug this: [ 3437.467507] Chain exists of: sb_writers#10 --> &c->snapshot_create_lock --> &type->s_umount_key#48 [ 3437.467979] Possible unsafe locking scenario: [ 3437.468223] CPU0 CPU1 [ 3437.468405] ---- ---- [ 3437.468585] rlock(&type->s_umount_key#48); [ 3437.468758] lock(&c->snapshot_create_lock); [ 3437.469030] lock(&type->s_umount_key#48); [ 3437.469291] rlock(sb_writers#10); [ 3437.469434] *** DEADLOCK *** [ 3437.469670] 2 locks held by bcachefs/35533: [ 3437.469838] #0: ffffa0a02ce00a88 (&c->snapshot_create_lock){++++}-{3:3}, at: bch2_fs_file_ioctl+0x1e3/0xc90 [bcachefs] [ 3437.470294] #1: ffffa0a02b2b10e0 (&type->s_umount_key#48){.+.+}-{3:3}, at: bch2_fs_file_ioctl+0x232/0xc90 [bcachefs] [ 3437.470744] stack backtrace: [ 3437.470922] CPU: 7 PID: 35533 Comm: bcachefs Kdump: loaded Tainted: G E 6.7.0-rc7-custom+ #85 [ 3437.471313] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 [ 3437.471694] Call Trace: [ 3437.471795] <TASK> [ 3437.471884] dump_stack_lvl+0x57/0x90 [ 3437.472035] check_noncircular+0x132/0x150 [ 3437.472202] __lock_acquire+0x1455/0x21b0 [ 3437.472369] lock_acquire+0xc6/0x2b0 [ 3437.472518] ? filename_create+0x62/0x190 [ 3437.472683] ? lock_is_held_type+0x97/0x110 [ 3437.472856] mnt_want_write+0x46/0x1a0 [ 3437.473025] ? filename_create+0x62/0x190 [ 3437.473204] filename_create+0x62/0x190 [ 3437.473380] user_path_create+0x2d/0x50 [ 3437.473555] bch2_fs_file_ioctl+0x2ec/0xc90 [bcachefs] [ 3437.473819] ? lock_acquire+0xc6/0x2b0 [ 3437.474002] ? __fget_files+0x2a/0x190 [ 3437.474195] ? __fget_files+0xbc/0x190 [ 3437.474380] ? lock_release+0xc5/0x270 [ 3437.474567] ? __x64_sys_ioctl+0x93/0xd0 [ 3437.474764] ? __pfx_bch2_fs_file_ioctl+0x10/0x10 [bcachefs] [ 3437.475090] __x64_sys_ioctl+0x93/0xd0 [ 3437.475277] do_syscall_64+0x42/0xf0 [ 3437.475454] entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 3437.475691] RIP: 0033:0x7f2743c313af ====================================================== In __bch2_ioctl_subvolume_create(), we grab s_umount unconditionally and unlock it at the end of the function. There is a comment "why do we need this lock?" about the lock coming from commit 42d237320e98 ("bcachefs: Snapshot creation, deletion") The reason is that __bch2_ioctl_subvolume_create() calls sync_inodes_sb() which enforce locked s_umount to writeback all dirty nodes before doing snapshot works. Fix it by read locking s_umount for snapshotting only and unlocking s_umount after sync_inodes_sb(). Signed-off-by: Su Yue <glass.su@suse.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: kvfree bch_fs::snapshots in bch2_fs_snapshots_exitSu Yue1-1/+1
bch_fs::snapshots is allocated by kvzalloc in __snapshot_t_mut. It should be freed by kvfree not kfree. Or umount will triger: [ 406.829178 ] BUG: unable to handle page fault for address: ffffe7b487148008 [ 406.830676 ] #PF: supervisor read access in kernel mode [ 406.831643 ] #PF: error_code(0x0000) - not-present page [ 406.832487 ] PGD 0 P4D 0 [ 406.832898 ] Oops: 0000 [#1] PREEMPT SMP PTI [ 406.833512 ] CPU: 2 PID: 1754 Comm: umount Kdump: loaded Tainted: G OE 6.7.0-rc7-custom+ #90 [ 406.834746 ] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Arch Linux 1.16.3-1-1 04/01/2014 [ 406.835796 ] RIP: 0010:kfree+0x62/0x140 [ 406.836197 ] Code: 80 48 01 d8 0f 82 e9 00 00 00 48 c7 c2 00 00 00 80 48 2b 15 78 9f 1f 01 48 01 d0 48 c1 e8 0c 48 c1 e0 06 48 03 05 56 9f 1f 01 <48> 8b 50 08 48 89 c7 f6 c2 01 0f 85 b0 00 00 00 66 90 48 8b 07 f6 [ 406.837810 ] RSP: 0018:ffffb9d641607e48 EFLAGS: 00010286 [ 406.838213 ] RAX: ffffe7b487148000 RBX: ffffb9d645200000 RCX: ffffb9d641607dc4 [ 406.838738 ] RDX: 000065bb00000000 RSI: ffffffffc0d88b84 RDI: ffffb9d645200000 [ 406.839217 ] RBP: ffff9a4625d00068 R08: 0000000000000001 R09: 0000000000000001 [ 406.839650 ] R10: 0000000000000001 R11: 000000000000001f R12: ffff9a4625d4da80 [ 406.840055 ] R13: ffff9a4625d00000 R14: ffffffffc0e2eb20 R15: 0000000000000000 [ 406.840451 ] FS: 00007f0a264ffb80(0000) GS:ffff9a4e2d500000(0000) knlGS:0000000000000000 [ 406.840851 ] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 406.841125 ] CR2: ffffe7b487148008 CR3: 000000018c4d2000 CR4: 00000000000006f0 [ 406.841464 ] Call Trace: [ 406.841583 ] <TASK> [ 406.841682 ] ? __die+0x1f/0x70 [ 406.841828 ] ? page_fault_oops+0x159/0x470 [ 406.842014 ] ? fixup_exception+0x22/0x310 [ 406.842198 ] ? exc_page_fault+0x1ed/0x200 [ 406.842382 ] ? asm_exc_page_fault+0x22/0x30 [ 406.842574 ] ? bch2_fs_release+0x54/0x280 [bcachefs] [ 406.842842 ] ? kfree+0x62/0x140 [ 406.842988 ] ? kfree+0x104/0x140 [ 406.843138 ] bch2_fs_release+0x54/0x280 [bcachefs] [ 406.843390 ] kobject_put+0xb7/0x170 [ 406.843552 ] deactivate_locked_super+0x2f/0xa0 [ 406.843756 ] cleanup_mnt+0xba/0x150 [ 406.843917 ] task_work_run+0x59/0xa0 [ 406.844083 ] exit_to_user_mode_prepare+0x197/0x1a0 [ 406.844302 ] syscall_exit_to_user_mode+0x16/0x40 [ 406.844510 ] do_syscall_64+0x4e/0xf0 [ 406.844675 ] entry_SYSCALL_64_after_hwframe+0x6e/0x76 [ 406.844907 ] RIP: 0033:0x7f0a2664e4fb Signed-off-by: Su Yue <glass.su@suse.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: bios must be 512 byte alginedKent Overstreet1-0/+4
Fixes: 023f9ac9f70f bcachefs: Delete dio read alignment check Reported-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: remove redundant variable tmpColin Ian King1-3/+1
The variable tmp is being assigned a value but it isn't being read afterwards. The assignment is redundant and so tmp can be removed. Cleans up clang scan build warning: warning: Although the value stored to 'ret' is used in the enclosing expression, the value is never actually read from 'ret' [deadcode.DeadStores] Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Brian Foster <bfoster@redhat.com> Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Improve trace_trans_restart_relockKent Overstreet5-24/+44
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Fix excess transaction restarts in __bchfs_fallocate()Kent Overstreet4-16/+35
drop_locks_do() should not be used in a fastpath without first trying the do in nonblocking mode - the unlock and relock will cause excessive transaction restarts and potentially livelocking with other threads that are contending for the same locks. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: extents_to_bp_stateKent Overstreet1-48/+41
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: bkey_and_val_eq()Kent Overstreet1-3/+8
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Better journal tracepointsKent Overstreet2-60/+79
Factor out bch2_journal_bufs_to_text(), and use it in the journal_entry_full() tracepoint; when we can't get a journal reservation we need to know the outstanding journal entry sizes to know if the problem is due to excessive flushing. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Print size of superblock with space allocatedKent Overstreet1-1/+3
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Avoid flushing the journal in the discard pathKent Overstreet1-19/+41
When issuing discards, we may need to flush the journal if there's too many buckets that can't be discarded until a journal flush. But the heuristic was bad; we should be comparing the number of buckets that need to flushes against the number of free buckets, not the number of buckets we saw. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Improve move_extent tracepointKent Overstreet5-7/+48
Also print out the data_opts, so that we can see what specifically is being done to an extent. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Add missing bch2_moving_ctxt_flush_all()Kent Overstreet1-0/+1
This fixes a bug with rebalance IOs getting stuck with reads completed, but writes never being issued. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Re-add move_extent_write tracepointKent Overstreet2-23/+20
It appears this was accidentally deleted at some point - also, do a bit of cleanup. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: bch2_kthread_io_clock_wait() no longer sleeps until full amountKent Overstreet1-2/+2
Drop t he loop in bch2_kthread_io_clock_wait(): this allows the code that uses it to be woken up for other reasons, and fixes a bug where rebalance wouldn't wake up when a scan was requested. This raises the possibility of spurious wakeups, but callers should always be able to handle that reasonably well. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Add .val_to_text() for KEY_TYPE_cookieKent Overstreet1-0/+9
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Don't pass memcmp() as a pointerKent Overstreet1-2/+8
Some (buggy!) compilers have issues with this. Fixes: https://github.com/koverstreet/bcachefs/issues/625 Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: Reduce would_deadlock restartsKent Overstreet1-0/+7
We don't have to take locks in any particular ordering - we'll make forward progress just fine - but if we try to stick to an ordering, it can help to avoid excessive would_deadlock transaction restarts. This tweaks the reflink path to take extents btree locks in the right order. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2024-01-21bcachefs: bch2_trans_account_disk_usage_change()Kent Overstreet3-29/+48
The disk space accounting rewrite is splitting out accounting for each replicas set - those are moving to btree keys, instead of percpu counters. This breaks bch2_trans_fs_usage_apply() up, splitting out the part we will still need. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
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