kernel/git/stable/linux.git/fs/bcachefs/replicas.c, branch master

Remove bcachefs core code

2025-09-29T20:43:52+00:00

bcachefs was marked 'externally maintained' in 6.17 but the code remained to make the transition smoother. It's now a DKMS module, making the in-kernel code stale, so remove it to avoid any version confusion. Link: https://lore.kernel.org/linux-bcachefs/yokpt2d2g2lluyomtqrdvmkl3amv3kgnipmenobkpgx537kay7@xgcgjviv3n7x/T/ Signed-off-by: Linus Torvalds

bcachefs: bch_err_throw()

2025-06-02T16:16:35+00:00

Add a tracepoint for any time we return an error and unwind. Signed-off-by: Kent Overstreet

bcachefs: Replace rcu_read_lock() with guards

2025-06-01T04:03:12+00:00

The new guard(), scoped_guard() allow for more natural code. Some of the uses with creative flow control have been left. Signed-off-by: Kent Overstreet

bcachefs: Fix bch2_have_enough_devs() for BCH_SB_MEMBER_INVALID

2024-10-12T02:20:51+00:00

This fixes a kasan splat in the ec device removal tests. Signed-off-by: Kent Overstreet

bcachefs: Fix lockdep splat in bch2_accounting_read

2024-10-06T07:03:45+00:00

We can't take sb_lock while holding mark_lock, so split out replicas_entry_validate() and replicas_entry_sb_validate() - replicas_entry_validate() now uses the normal online device interface. 00039 ========= TEST set_option 00039 00039 WATCHDOG 30 00040 bcachefs (vdb): starting version 1.12: rebalance_work_acct_fix opts=errors=panic 00040 bcachefs (vdb): initializing new filesystem 00040 bcachefs (vdb): going read-write 00040 bcachefs (vdb): marking superblocks 00040 bcachefs (vdb): initializing freespace 00040 bcachefs (vdb): done initializing freespace 00040 bcachefs (vdb): reading snapshots table 00040 bcachefs (vdb): reading snapshots done 00040 bcachefs (vdb): done starting filesystem 00040 zstd 00041 bcachefs (vdb): shutting down 00041 bcachefs (vdb): going read-only 00041 bcachefs (vdb): finished waiting for writes to stop 00041 bcachefs (vdb): flushing journal and stopping allocators, journal seq 3 00041 bcachefs (vdb): flushing journal and stopping allocators complete, journal seq 11 00041 bcachefs (vdb): shutdown complete, journal seq 12 00041 bcachefs (vdb): marking filesystem clean 00041 bcachefs (vdb): shutdown complete 00041 Setting option on offline fs 00041 bch2_write_super(): fatal error : attempting to write superblock that wasn't version downgraded (1.12: (unknown version) > 1.10: disk_accounting_v3) 00041 fatal error - emergency read only 00041 bch2_write_super(): fatal error : attempting to write superblock that wasn't version downgraded (1.12: (unknown version) > 1.10: disk_accounting_v3) 00042 bcachefs (vdb): starting version 1.12: rebalance_work_acct_fix opts=errors=panic,compression=zstd 00042 bcachefs (vdb): recovering from clean shutdown, journal seq 12 00042 bcachefs (vdb): accounting_read... 00042 00042 ====================================================== 00042 WARNING: possible circular locking dependency detected 00042 6.12.0-rc1-ktest-g805e938a8502 #6807 Not tainted 00042 ------------------------------------------------------ 00042 mount.bcachefs/665 is trying to acquire lock: 00045 ffffff80cc280908 (&c->sb_lock){+.+.}-{3:3}, at: bch2_replicas_entry_validate (fs/bcachefs/replicas.c:102) 00045 00045 but task is already holding lock: 00048 ffffff80cc284870 (&c->mark_lock){++++}-{0:0}, at: bch2_accounting_read (fs/bcachefs/disk_accounting.c:670 (discriminator 1)) 00048 00048 which lock already depends on the new lock. 00048 00048 00048 the existing dependency chain (in reverse order) is: 00048 00048 -> #1 (&c->mark_lock){++++}-{0:0}: 00049 percpu_down_write (kernel/locking/percpu-rwsem.c:232) 00052 bch2_sb_replicas_to_cpu_replicas (fs/bcachefs/replicas.c:583) 00055 bch2_sb_to_fs (fs/bcachefs/super-io.c:614) 00057 bch2_fs_open (fs/bcachefs/super.c:828 fs/bcachefs/super.c:2050) 00060 bch2_fs_get_tree (fs/bcachefs/fs.c:2067) 00062 vfs_get_tree (fs/super.c:1801) 00064 path_mount (fs/namespace.c:3507 fs/namespace.c:3834) 00066 __arm64_sys_mount (fs/namespace.c:3847 fs/namespace.c:4055 fs/namespace.c:4032 fs/namespace.c:4032) 00067 invoke_syscall.constprop.0 (arch/arm64/include/asm/syscall.h:61 arch/arm64/kernel/syscall.c:54) 00068 do_el0_svc (include/linux/thread_info.h:127 (discriminator 2) arch/arm64/kernel/syscall.c:140 (discriminator 2) arch/arm64/kernel/syscall.c:151 (discriminator 2)) 00069 el0_svc (arch/arm64/include/asm/irqflags.h:82 arch/arm64/include/asm/irqflags.h:123 arch/arm64/include/asm/irqflags.h:136 arch/arm64/kernel/entry-common.c:165 arch/arm64/kernel/entry-common.c:178 arch/arm64/kernel/entry-common.c:713) 00069 ========= FAILED TIMEOUT set_option in 30s Signed-off-by: Kent Overstreet

bcachefs: Fix unlocked access to c->disk_sb.sb in bch2_replicas_entry_validate()

2024-09-28T01:46:35+00:00

Signed-off-by: Kent Overstreet

bcachefs: Failed devices no longer require mounting in degraded mode

2024-09-21T15:39:48+00:00

Signed-off-by: Kent Overstreet

bcachefs: bch2_dev_rcu_noerror()

2024-09-21T15:39:48+00:00

bch2_dev_rcu() now properly errors if the device is invalid Signed-off-by: Kent Overstreet

bcachefs: Annotate bch_replicas_entry_{v0,v1} with __counted_by()

2024-09-09T13:41:49+00:00

Add the __counted_by compiler attribute to the flexible array members devs to improve access bounds-checking via CONFIG_UBSAN_BOUNDS and CONFIG_FORTIFY_SOURCE. Increment nr_devs before adding a new device to the devs array and adjust the array indexes accordingly. Add a helper macro for adding a new device. In bch2_journal_read(), explicitly set nr_devs to 0. Signed-off-by: Thorsten Blum Signed-off-by: Kent Overstreet

bcachefs: More BCH_SB_MEMBER_INVALID support

2024-09-09T13:41:46+00:00

Signed-off-by: Kent Overstreet