ceph: queue cap snap only when snap realm's context changes

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If we create capsnap when snap realm's context does not change, the
new capsnap's snapc is equal to ci->i_head_snapc. Page writeback code
can't differentiates dirty pages associated with the new capsnap from
dirty pages associated with i_head_snapc.

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

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Yan, Zheng 2017-08-28 16:36:53 +08:00 • committed by Ilya Dryomov

parent c8fd0d37f8

commit 3ae0bebc49

1 changed files with 16 additions and 21 deletions

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37

fs/ceph/snap.c

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