summaryrefslogtreecommitdiffstats
path: root/fs/bcachefs/seqmutex.h
AgeCommit message (Collapse)AuthorLines
2025-09-29Remove bcachefs core codeLinus Torvalds-45/+0
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 <torvalds@linux-foundation.org>
2024-06-23bcachefs: fix seqmutex_relock()Kent Overstreet-7/+4
We were grabbing the sequence number before unlock incremented it - fix this by moving the increment to seqmutex_lock() (so the seqmutex_relock() failure path skips the mutex_trylock()), and returning the sequence number from unlock(), to make the API simpler and safer. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
2023-10-22bcachefs: seqmutex; fix a lockdep splatKent Overstreet-0/+48
We can't be holding btree_trans_lock while copying to user space, which might incur a page fault. To fix this, convert it to a seqmutex so we can unlock/relock. Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>