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authorAlex Elder <elder@dreamhost.com>2012-01-11 17:41:01 -0800
committerSage Weil <sage@newdream.net>2012-01-12 11:00:51 -0800
commit83eb26af0db71f2dfe551405c55d982288fa6178 (patch)
treec7bc62a810483e328cbe2b931416e58ec655ab9b /fs/partitions
parent0e805a1d857799352e51e8697c0b1a30aec16913 (diff)
ceph: ensure prealloc_blob is in place when removing xattr
In __ceph_build_xattrs_blob(), if a ceph inode's extended attributes are marked dirty, all attributes recorded in its rb_tree index are formatted into a "blob" buffer. The target buffer is recorded in ceph_inode->i_xattrs.prealloc_blob, and it is expected to exist and be of sufficient size to hold the attributes. The extended attributes are marked dirty in two cases: when a new attribute is added to the inode; or when one is removed. In the former case work is done to ensure the prealloc_blob buffer is properly set up, but in the latter it is not. Change the logic in ceph_removexattr() so it matches what is done in ceph_setxattr(). Note that this is done in a way that keeps the two blocks of code nearly identical, in anticipation of a subsequent patch that encapsulates some of this logic into one or more helper routines. Signed-off-by: Alex Elder <elder@dreamhost.com> Signed-off-by: Sage Weil <sage@newdream.net>
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