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(parent: e4339d2) | patch
ceph: use pagelist to present MDS request data
authorYan, Zheng <zyan@redhat.com>
Tue, 16 Sep 2014 11:15:28 +0000 (19:15 +0800)
committerSage Weil <sage@redhat.com>
Tue, 14 Oct 2014 19:56:49 +0000 (12:56 -0700)
commit25e6bae356502cde283f1804111b44e6fad20fc2
tree8825e784ff921f4dd27e42b321c1a26cf26b9632tree | snapshot
parente4339d28f640a7c0d92903bcf389a2dfa281270dcommit | diff
ceph: use pagelist to present MDS request data

Current code uses page array to present MDS request data. Pages in the
array are allocated/freed by caller of ceph_mdsc_do_request(). If request
is interrupted, the pages can be freed while they are still being used by
the request message.

The fix is use pagelist to present MDS request data. Pagelist is
reference counted.

Signed-off-by: Yan, Zheng <zyan@redhat.com>
Reviewed-by: Sage Weil <sage@redhat.com>
fs/ceph/mds_client.c diff | blob | history
fs/ceph/mds_client.h diff | blob | history
fs/ceph/xattr.c diff | blob | history
Domain: System / Kernel;