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Commit 87c91a96 authored by Yan, Zheng's avatar Yan, Zheng Committed by Ilya Dryomov
Browse files

ceph: voluntarily drop Fx cap for readdir request 



MDS need to rdlock directory inode's filelock when handling readdir
request. Voluntarily dropping CEPH_CAP_AUTH_EXCL avoids a cap revoke
message.

Signed-off-by: default avatar"Yan, Zheng" <zyan@redhat.com>
Signed-off-by: default avatarIlya Dryomov <idryomov@gmail.com>
parent be70489e

fs/ceph/dir.c

+1 −0
Original line number Diff line number Diff line
@@ -381,6 +381,7 @@ static int ceph_readdir(struct file *file, struct dir_context *ctx) 
		if (op == CEPH_MDS_OP_READDIR) {

			req->r_direct_hash = ceph_frag_value(frag);

			__set_bit(CEPH_MDS_R_DIRECT_IS_HASH, &req->r_req_flags);

			req->r_inode_drop = CEPH_CAP_FILE_EXCL;

		}

		if (fi->last_name) {

			req->r_path2 = kstrdup(fi->last_name, GFP_KERNEL);