bcachefs: btree_and_journal_iter: don't iterate over too many whiteouts when prefetching

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To help ameloriate issues with peek operations having to skip over
deletions in the journal - just bail out if all we're doing is
prefetching btree nodes.

Since btree node prefetching runs every time we iterate to a new node,
and has to sequentially scan ahead, this avoids another O(n^2).

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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This commit is contained in:

Kent Overstreet 2024-11-17 14:39:46 -05:00

parent 06d7a56fe0

commit 854724d116

3 changed files with 10 additions and 0 deletions

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2

fs/bcachefs/btree_iter.c

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7

fs/bcachefs/btree_journal_iter.c

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1

fs/bcachefs/btree_journal_iter.h

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