Commit 15289dc8 authored Mar 03, 2014 by Yan, Zheng

ceph: let MDS adjust readdir 'frag'



If readdir 'frag' is adjusted, readdir 'offset' should be reset.
Otherwise some dentries may be lost when readdir and fragmenting
directory happen at the some.

Another way to fix this issue is let MDS adjust readdir 'frag'.
The code that handles MDS reply reset the readdir 'offset' if
the readdir reply is different than the requested one.

Signed-off-by: Yan, Zheng <zheng.z.yan@intel.com>

parent dcd3cc05

fs/ceph/dir.c

+0 −3

Original line number	Diff line number	Diff line
		@@ -322,9 +322,6 @@ more:
		fi->last_readdir = NULL;
		}

		/* requery frag tree, as the frag topology may have changed */
		frag = ceph_choose_frag(ceph_inode(inode), frag, NULL, NULL);

		dout("readdir fetching %llx.%llx frag %x offset '%s'\n",
		ceph_vinop(inode), frag, fi->last_name);
		req = ceph_mdsc_create_request(mdsc, op, USE_AUTH_MDS);

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