dm snapshot: create function for chunk_is_tracked wait

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Move the __chunk_is_tracked() loop into a separate function as we will
also need to call it from the write path in the rare case of conflicting
writes to the same chunk.

Originally introduced in commit a8d41b59f3
("dm snapshot: fix race during exception creation").

Signed-off-by: Mike Snitzer <snitzer@redhat.com>
Signed-off-by: Alasdair G Kergon <agk@redhat.com>

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Mike Snitzer 2009-12-10 23:52:29 +00:00 • committed by Alasdair G Kergon

parent 9eaae8ffbc

commit 615d1eb9ca

1 changed files with 12 additions and 6 deletions

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drivers/md/dm-snap.c

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