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ceph: request new max size only when there is auth cap

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When there is no auth cap, check_max_size() can't do anything and may
cause an infinite loop inside ceph_get_caps().

Signed-off-by: "Yan, Zheng" <zyan@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Yan, Zheng 2020-03-10 19:34:19 +08:00 committed by Ilya Dryomov
parent 546d402085
commit 42d70f8e31
1 changed files with 1 additions and 1 deletions
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2
fs/ceph/caps.c
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@ -2582,7 +2582,7 @@ static int try_get_cap_refs(struct inode *inode, int need, int want,
dout("get_cap_refs %p endoff %llu > maxsize %llu\n",
inode, endoff, ci->i_max_size);
if (endoff > ci->i_requested_max_size)
ret = -EFBIG;
ret = ci->i_auth_cap ? -EFBIG : -ESTALE;
goto out_unlock;
}
/*