bcachefs: seqmutex; fix a lockdep splat

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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>

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This commit is contained in:

Kent Overstreet 2023-06-19 21:01:13 -04:00

parent 6547ebabda

commit a5b696ee6e

5 changed files with 96 additions and 23 deletions

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3

fs/bcachefs/bcachefs.h

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18

fs/bcachefs/btree_iter.c

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46

fs/bcachefs/debug.c

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48

fs/bcachefs/seqmutex.h

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4

fs/bcachefs/sysfs.c

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