- 28 Feb, 2024 2 commits
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Alexander Sverdlin authored
Historically AM33xx performed warm software reset even though requested (and default) was REBOOT_COLD. Reflect the de-facto default mode in /sys/kernel/reboot/mode correctly and implement the real REBOOT_COLD (if configured explicitly). Tested-by:
Matthias Michel <matthias.michel@siemens.com> Signed-off-by:
Alexander Sverdlin <alexander.sverdlin@siemens.com> Message-ID: <20240221154614.3549951-2-alexander.sverdlin@siemens.com> Signed-off-by:
Tony Lindgren <tony@atomide.com>
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Alexander Sverdlin authored
AM33XX_PRM_RSTCTRL_OFFSET is already defined in prm33xx.h and AM33XX_RST_GLOBAL_WARM_SW_MASK in prm-regbits-33xx.h. Signed-off-by:
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- 26 Jan, 2024 13 commits
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Randy Dunlap authored
Use the correct function name in a comment. Add the return value documentation for one function. These changes prevent these warnings: wd_timer.c:76: warning: expecting prototype for omap2_wdtimer_reset(). Prototype was for omap2_wd_timer_reset() instead wd_timer.c:76: warning: No description found for return value of 'omap2_wd_timer_reset' Signed-off-by:
Randy Dunlap <rdunlap@infradead.org> Cc: Tony Lindgren <tony@atomide.com> Cc: linux-omap@vger.kernel.org Cc: Russell King <linux@armlinux.org.uk> Cc: linux-arm-kernel@lists.infradead.org Cc: patches@armlinux.org.uk Message-ID: <20240117011004.22669-14-rdunlap@infradead.org> Signed-off-by:
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Randy Dunlap authored
Use the correct function name in a comment. Use the correct function parameter name in a comment. These changes prevent the following kernel-doc warnings: omap-secure.c:61: warning: expecting prototype for omap_sec_dispatcher(). Prototype was for omap_secure_dispatcher() instead omap-secure.c:191: warning: Excess function parameter 'clr_bits' description in 'rx51_secure_update_aux_cr' Signed-off-by:
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Randy Dunlap authored
Use the correct function name in a kernel-doc comment to prevent a warning: powerdomain.c:1171: warning: expecting prototype for pwrdm_save_context(). Prototype was for pwrdm_restore_context() instead Signed-off-by:
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Randy Dunlap authored
Use the correct function name in a kernel-doc comment. Add function parameter descriptions in 2 places. These changes prevent the following warnings: prm_common.c:384: warning: expecting prototype for prm_clear_context_lost_flags_old(). Prototype was for prm_clear_context_loss_flags_old() instead prm_common.c:505: warning: Function parameter or struct member 'vp_id' not described in 'omap_prm_vp_check_txdone' prm_common.c:522: warning: Function parameter or struct member 'vp_id' not described in 'omap_prm_vp_clear_txdone' Signed-off-by:
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Randy Dunlap authored
Use the correct function name in a kernel-doc comment to prevent a warning: prm44xx.c:421: warning: expecting prototype for omap44xx_prm_clear_context_lost_flags_old(). Prototype was for omap44xx_prm_clear_context_loss_flags_old() instead Signed-off-by:
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Randy Dunlap authored
Use the correct function names in kernel-doc comments. Use "Return[s]:" kernel-doc notation for function return values. These changes prevent the following warnings: pmic-cpcap.c:28: warning: expecting prototype for omap_cpcap_vsel_to_vdc(). Prototype was for omap_cpcap_vsel_to_uv() instead pmic-cpcap.c:92: warning: expecting prototype for omap_max8952_vsel_to_vdc(). Prototype was for omap_max8952_vsel_to_uv() instead pmic-cpcap.c:139: warning: expecting prototype for omap_fan5355_vsel_to_vdc(). Prototype was for omap_fan535503_vsel_to_uv() instead pmic-cpcap.c:154: warning: expecting prototype for omap_fan535508_vsel_to_vdc(). Prototype was for omap_fan535508_vsel_to_uv() instead pmic-cpcap.c:28: warning: No description found for return value of 'omap_cpcap_vsel_to_uv' pmic-cpcap.c:42: warning: No description found for return value of 'omap_cpcap_uv_to_vsel' pmic-cpcap.c:92: warning: No description found for return value of 'omap_max8952_vsel_to_uv' pmic-cpcap.c:106: warning: No description found for return value of 'omap_max8952_uv_to_vsel' pmic-cpcap.c:139: warning: No description found for return value of 'omap_fan535503_vsel_to_uv' pmic-cpcap.c:154: warning: No description found for return value of 'omap_fan535508_vsel_to_uv' pmic-cpcap.c:172: warning: No description found for return value of 'omap_fan535503_uv_to_vsel' pmic-cpcap.c:191: warning: No description found for return value of 'omap_fan535508_uv_to_vsel' Signed-off-by:
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Randy Dunlap authored
Use the correct function name in a kernel-doc comment. Use the correct function parameter names in kernel-doc comments. These changes prevent the following warnings: omap_hwmod.c:910: warning: expecting prototype for _init_opt_clk(). Prototype was for _init_opt_clks() instead omap_hwmod.c:2311: warning: Excess function parameter 'n' description in '_init' omap_hwmod.c:2510: warning: Excess function parameter 'n' description in '_setup' omap_hwmod.c:3387: warning: Excess function parameter 'clockdomain' description in 'omap_hwmod_allocate_module' Signed-off-by:
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Randy Dunlap authored
kernel-doc does not support documenting data definitions, so change the "/**" comments to common "/*" comments to avoid kernel-doc warnings: omap_hwmod_common_data.c:37: error: Cannot parse struct or union! omap_hwmod_common_data.c:51: error: Cannot parse struct or union! omap_hwmod_common_data.c:60: error: Cannot parse struct or union! Signed-off-by:
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Randy Dunlap authored
Prevent a kernel-doc warning by using the correct function name in a kernel-doc comment: cminst44xx.c:249: warning: expecting prototype for omap4_cminst_clkdm_force_sleep(). Prototype was for omap4_cminst_clkdm_force_wakeup() instead Signed-off-by:
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Randy Dunlap authored
Prevent a kernel-doc warning by using the correct function name in the kernel-doc comment: cm33xx.c:366: warning: expecting prototype for am33xx_restore_save_context(). Prototype was for am33xx_clkdm_restore_context() instead Signed-off-by:
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Randy Dunlap authored
Use the correct function name in a kernel-doc comment to prevent a kernel-doc warning: clkt2xxx_virt_prcm_set.c:173: warning: expecting prototype for omap2xxx_clkt_vps_check_bootloader_rate(). Prototype was for omap2xxx_clkt_vps_check_bootloader_rates() instead Signed-off-by:
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Randy Dunlap authored
Use the correct function name in a kernel-doc comment to prevent a kernel-doc warning. Use the correct function parameter name to prevent a kernel-doc warning. clockdomain.c:1003: warning: expecting prototype for clkdm_deny_idle(). Prototype was for clkdm_deny_idle_nolock() instead clockdomain.c:1125: warning: Excess function parameter 'clk' description in 'clkdm_clk_enable' Signed-off-by:
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Randy Dunlap authored
Use the correct name in kernel-doc notation to prevent a kernel-doc warning: am33xx-restart.c:20: warning: expecting prototype for am3xx_restart(). Prototype was for am33xx_restart() instead Signed-off-by:
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- 21 Jan, 2024 25 commits
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Linus Torvalds authored
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https://evilpiepirate.org/git/bcachefsLinus Torvalds authored
Pull more bcachefs updates from Kent Overstreet: "Some fixes, Some refactoring, some minor features: - Assorted prep work for disk space accounting rewrite - BTREE_TRIGGER_ATOMIC: after combining our trigger callbacks, this makes our trigger context more explicit - A few fixes to avoid excessive transaction restarts on multithreaded workloads: fstests (in addition to ktest tests) are now checking slowpath counters, and that's shaking out a few bugs - Assorted tracepoint improvements - Starting to break up bcachefs_format.h and move on disk types so they're with the code they belong to; this will make room to start documenting the on disk format better. - A few minor fixes" * tag 'bcachefs-2024-01-21' of https://evilpiepirate.org/git/bcachefs: (46 commits) bcachefs: Improve inode_to_text() bcachefs: logged_ops_format.h bcachefs: reflink_format.h bcachefs; extents_format.h bcachefs: ec_format.h bcachefs: subvolume_format.h bcachefs: snapshot_format.h bcachefs: alloc_background_format.h bcachefs: xattr_format.h bcachefs: dirent_format.h bcachefs: inode_format.h bcachefs; quota_format.h bcachefs: sb-counters_format.h bcachefs: counters.c -> sb-counters.c bcachefs: comment bch_subvolume bcachefs: bch_snapshot::btime bcachefs: add missing __GFP_NOWARN bcachefs: opts->compression can now also be applied in the background bcachefs: Prep work for variable size btree node buffers bcachefs: grab s_umount only if snapshotting ... -
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds authored
Pull timer updates from Thomas Gleixner: "Updates for time and clocksources: - A fix for the idle and iowait time accounting vs CPU hotplug. The time is reset on CPU hotplug which makes the accumulated systemwide time jump backwards. - Assorted fixes and improvements for clocksource/event drivers" * tag 'timers-core-2024-01-21' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: tick-sched: Fix idle and iowait sleeptime accounting vs CPU hotplug clocksource/drivers/ep93xx: Fix error handling during probe clocksource/drivers/cadence-ttc: Fix some kernel-doc warnings clocksource/drivers/timer-ti-dm: Fix make W=n kerneldoc warnings clocksource/timer-riscv: Add riscv_clock_shutdown callback dt-bindings: timer: Add StarFive JH8100 clint dt-bindings: timer: thead,c900-aclint-mtimer: separate mtime and mtimecmp regs -
git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linuxLinus Torvalds authored
Pull powerpc fixes from Aneesh Kumar: - Increase default stack size to 32KB for Book3S Thanks to Michael Ellerman. * tag 'powerpc-6.8-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: powerpc/64s: Increase default stack size to 32KB
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Kent Overstreet authored
Add line breaks - inode_to_text() is now much easier to read. Signed-off-by:Kent Overstreet <kent.overstreet@linux.dev>
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Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
bcachefs_format.h has gotten too big; let's do some organizing. Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
Signed-off-by: -
Kent Overstreet authored
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 authored
Signed-off-by: -
Kent Overstreet authored
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 authored
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: -
Su Yue authored
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 42d23732 ("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:
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Su Yue authored
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:
Brian Foster <bfoster@redhat.com> Signed-off-by:
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