Commit 90d1e588 authored by James Simmons's avatar James Simmons Committed by Greg Kroah-Hartman
Browse files

staging: lustre: uapi: move lustre_cfg_string() to obd_config.c



To perserve the truncate warning move lustre_cfg_string()
to obd_config.c. A identical function was created for
userland. This function was a bit big for a inline function.

Signed-off-by: default avatarJames Simmons <uja.ornl@yahoo.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-6401
Reviewed-on: https://review.whamcloud.com/26966


Reviewed-by: default avatarQuentin Bouget <quentin.bouget@cea.fr>
Reviewed-by: default avatarBen Evans <bevans@cray.com>
Reviewed-by: default avatarOleg Drokin <oleg.drokin@intel.com>
Signed-off-by: default avatarJames Simmons <jsimmons@infradead.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 402fba76
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+0 −29
Original line number Diff line number Diff line
@@ -179,35 +179,6 @@ static inline void lustre_cfg_bufs_init(struct lustre_cfg_bufs *bufs,
	}
}

static inline char *lustre_cfg_string(struct lustre_cfg *lcfg, __u32 index)
{
	char *s;

	if (lcfg->lcfg_buflens[index] == 0)
		return NULL;

	s = lustre_cfg_buf(lcfg, index);
	if (!s)
		return NULL;

	/*
	 * make sure it's NULL terminated, even if this kills a char
	 * of data.  Try to use the padding first though.
	 */
	if (s[lcfg->lcfg_buflens[index] - 1] != '\0') {
		size_t last = min((size_t)lcfg->lcfg_buflens[index],
				  cfs_size_round(lcfg->lcfg_buflens[index]) - 1);
		char lost = s[last];

		s[last] = '\0';
		if (lost != '\0') {
			CWARN("Truncated buf %d to '%s' (lost '%c'...)\n",
			      index, s, lost);
		}
	}
	return s;
}

static inline __u32 lustre_cfg_len(__u32 bufcount, __u32 *buflens)
{
	__u32 i;
+1 −0
Original line number Diff line number Diff line
@@ -107,6 +107,7 @@ typedef int (*llog_cb_t)(const struct lu_env *, struct llog_handle *,
			 struct llog_rec_hdr *, void *);

/* obd_config.c */
char *lustre_cfg_string(struct lustre_cfg *lcfg, u32 index);
int class_process_config(struct lustre_cfg *lcfg);
int class_process_proc_param(char *prefix, struct lprocfs_vars *lvars,
			     struct lustre_cfg *lcfg, void *data);
+34 −0
Original line number Diff line number Diff line
@@ -170,6 +170,40 @@ int class_parse_nid_quiet(char *buf, lnet_nid_t *nid, char **endh)
}
EXPORT_SYMBOL(class_parse_nid_quiet);

char *lustre_cfg_string(struct lustre_cfg *lcfg, u32 index)
{
	char *s;

	if (!lcfg->lcfg_buflens[index])
		return NULL;

	s = lustre_cfg_buf(lcfg, index);
	if (!s)
		return NULL;

	/*
	 * make sure it's NULL terminated, even if this kills a char
	 * of data.  Try to use the padding first though.
	 */
	if (s[lcfg->lcfg_buflens[index] - 1] != '\0') {
		size_t last = ALIGN(lcfg->lcfg_buflens[index], 8) - 1;
		char lost;

		/* Use the smaller value */
		if (last > lcfg->lcfg_buflens[index])
			last = lcfg->lcfg_buflens[index];

		lost = s[last];
		s[last] = '\0';
		if (lost != '\0') {
			CWARN("Truncated buf %d to '%s' (lost '%c'...)\n",
			      index, s, lost);
		}
	}
	return s;
}
EXPORT_SYMBOL(lustre_cfg_string);

/********************** class fns **********************/

/**
+1 −0
Original line number Diff line number Diff line
@@ -37,6 +37,7 @@
#include <linux/key.h>

#include "../include/obd.h"
#include "../include/obd_class.h"
#include "../include/obd_support.h"
#include "../include/lustre_import.h"
#include "../../include/uapi/linux/lustre/lustre_param.h"