2 Commits

Author	SHA1	Message	Date
Kent Overstreet	f44cc269a1	bcachefs: fix seqmutex_relock() ... 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>	2024-06-23 00:57:21 -04:00
Kent Overstreet	a5b696ee6e	bcachefs: seqmutex; fix a lockdep splat ... 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>	2023-10-22 17:10:04 -04:00