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libceph: evaluate osd_req_op_data() arguments only once 

This patch changes the osd_req_op_data() macro to not evaluate
arguments more than once in order to follow the kernel coding style.

Signed-off-by: Ioana Ciornei <ciorneiioana@gmail.com>
Reviewed-by: Alex Elder <elder@linaro.org>
[idryomov@gmail.com: changelog, formatting]
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
This commit is contained in:
Ioana Ciornei 2015-10-22 18:06:07 +03:00 committed by Ilya Dryomov
parent 68cd5b4b76
commit 8a703a383d
1 changed files with 7 additions and 5 deletions
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12
net/ceph/osd_client.c
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@ -120,11 +120,13 @@ static void ceph_osd_data_bio_init(struct ceph_osd_data *osd_data,
}
#endif /* CONFIG_BLOCK */
#define osd_req_op_data(oreq, whch, typ, fld) \
({ \
BUG_ON(whch >= (oreq)->r_num_ops); \
&(oreq)->r_ops[whch].typ.fld; \
})
#define osd_req_op_data(oreq, whch, typ, fld) \
({ \
struct ceph_osd_request *__oreq = (oreq); \
unsigned int __whch = (whch); \
BUG_ON(__whch >= __oreq->r_num_ops); \
&__oreq->r_ops[__whch].typ.fld; \
})
static struct ceph_osd_data *
osd_req_op_raw_data_in(struct ceph_osd_request *osd_req, unsigned int which)