linux-kernel - Re: [PATCH 02/21] ceph: on-wire types

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Date:	Tue, 22 Sep 2009 11:01:35 -0700
From:	Joe Perches <joe@...ches.com>
To:	Sage Weil <sage@...dream.net>
Cc:	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	akpm@...ux-foundation.org, yehuda@...dream.net
Subject: Re: [PATCH 02/21] ceph: on-wire types

On Tue, 2009-09-22 at 10:38 -0700, Sage Weil wrote:
> These headers describe the types used to exchange messages between the
> Ceph client and various servers.  All types are little-endian and
> packed.
[]
> diff --git a/fs/ceph/ceph_fs.h b/fs/ceph/ceph_fs.h
> new file mode 100644
> index 0000000..15150fc
> --- /dev/null
> +++ b/fs/ceph/ceph_fs.h
[]
> +static inline __u32 frag_make(__u32 b, __u32 v)
> +{
> +	return (b << 24) |
> +		(v & (0xffffffu << (24-b)) & 0xffffffu);
> +}

frag_<foo> inlines might have a conflict with ipv6

> +static inline const char *ceph_mds_state_name(int s)
> +{
> +	switch (s) {
[]
> +	case CEPH_MDS_STATE_STOPPING:   return "up:stopping";
> +	default: return "";
> +	}
> +	return NULL;
> +}

inline?

It's probably better not to use inlines here
as the strings could be duplicated unnecessarily.

> +static inline const char *ceph_mds_op_name(int op)
> +{
> +	switch (op) {
[]
> +	default: return "???";
> +	}
> +}

inline again and a couple of different styles for these
switch blocks are used as well.  Perhaps remove the
default: case and use return ""; as the last statement.

> +static inline const char *ceph_cap_op_name(int op)
> +{
> +}
> +static inline const char *ceph_lease_op_name(int o)
> +static inline const char *ceph_snap_op_name(int o)
> --- /dev/null
> +++ b/fs/ceph/rados.h
> +static inline const char *ceph_osd_op_name(int op)

more inlines.

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