ceph: renew caps for read/write if mds session got killed.

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When mds session gets killed, read/write operation may hang.
Client waits for Frw caps, but mds does not know what caps client
wants. To recover this, client sends an open request to mds. The
request will tell mds what caps client wants.

Signed-off-by: Yan, Zheng <zyan@redhat.com>

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Yan, Zheng 2016-04-08 15:27:16 +08:00 • committed by Ilya Dryomov

parent d463a43d69

commit 77310320c2

4 changed files with 93 additions and 11 deletions

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43

fs/ceph/caps.c

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53

fs/ceph/file.c

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6

fs/ceph/mds_client.c

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2

fs/ceph/super.h

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