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Message-ID: <5543C660.8000303@bfs.de>
Date: Fri, 01 May 2015 20:30:56 +0200
From: walter harms <wharms@....de>
To: Julia Lawall <Julia.Lawall@...6.fr>
CC: kernel-janitors@...r.kernel.org, HPDD-discuss@...ts.01.org,
devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/11] staging: lustre: obdclass: Use kzalloc and kfree
hi Julia,
your patch seems fine.
I tried to understand the code and it seems that much of it
can be simplified by using already available functions.
I have added some comments but i am not sure what to make of it.
re,
wh
Am 01.05.2015 17:51, schrieb Julia Lawall:
> From: Julia Lawall <Julia.Lawall@...6.fr>
>
> Replace OBD_ALLOC, OBD_ALLOC_WAIT, OBD_ALLOC_PTR, and OBD_ALLOC_PTR_WAIT by
> kalloc/kcalloc, and OBD_FREE and OBD_FREE_PTR by kfree.
>
> A simplified version of the semantic patch that makes these changes is as
> follows: (http://coccinelle.lip6.fr/)
>
> // <smpl>
> @@ expression ptr,size; @@
> - OBD_ALLOC(ptr,size)
> + ptr = kzalloc(size, GFP_NOFS)
>
> @@ expression ptr, size; @@
> - OBD_FREE(ptr, size);
> + kfree(ptr);
> // </smpl>
>
> Signed-off-by: Julia Lawall <Julia.Lawall@...6.fr>
>
> ---
> drivers/staging/lustre/lustre/obdclass/acl.c | 29 ++---
> drivers/staging/lustre/lustre/obdclass/capa.c | 4
> drivers/staging/lustre/lustre/obdclass/cl_io.c | 13 +-
> drivers/staging/lustre/lustre/obdclass/cl_page.c | 2
> drivers/staging/lustre/lustre/obdclass/class_obd.c | 4
> drivers/staging/lustre/lustre/obdclass/genops.c | 40 +++----
> drivers/staging/lustre/lustre/obdclass/llog.c | 24 ++--
> drivers/staging/lustre/lustre/obdclass/llog_obd.c | 4
> drivers/staging/lustre/lustre/obdclass/lprocfs_status.c | 14 +-
> drivers/staging/lustre/lustre/obdclass/lu_object.c | 6 -
> drivers/staging/lustre/lustre/obdclass/lustre_handles.c | 2
> drivers/staging/lustre/lustre/obdclass/lustre_peer.c | 6 -
> drivers/staging/lustre/lustre/obdclass/obd_config.c | 50 ++++-----
> drivers/staging/lustre/lustre/obdclass/obd_mount.c | 86 +++++++---------
> 14 files changed, 138 insertions(+), 146 deletions(-)
>
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/obd_mount.c b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
> --- a/drivers/staging/lustre/lustre/obdclass/obd_mount.c
> +++ b/drivers/staging/lustre/lustre/obdclass/obd_mount.c
> @@ -84,7 +84,7 @@ int lustre_process_log(struct super_bloc
> LASSERT(mgc);
> LASSERT(cfg);
>
> - OBD_ALLOC_PTR(bufs);
> + bufs = kzalloc(sizeof(*bufs), GFP_NOFS);
> if (bufs == NULL)
> return -ENOMEM;
>
> @@ -97,7 +97,7 @@ int lustre_process_log(struct super_bloc
> rc = obd_process_config(mgc, sizeof(*lcfg), lcfg);
> lustre_cfg_free(lcfg);
>
> - OBD_FREE_PTR(bufs);
> + kfree(bufs);
>
> if (rc == -EINVAL)
> LCONSOLE_ERROR_MSG(0x15b, "%s: The configuration from log '%s' failed from the MGS (%d). Make sure this client and the MGS are running compatible versions of Lustre.\n",
> @@ -247,8 +247,8 @@ int lustre_start_mgc(struct super_block
> mutex_lock(&mgc_start_lock);
>
> len = strlen(LUSTRE_MGC_OBDNAME) + strlen(libcfs_nid2str(nid)) + 1;
> - OBD_ALLOC(mgcname, len);
> - OBD_ALLOC(niduuid, len + 2);
> + mgcname = kzalloc(len, GFP_NOFS);
> + niduuid = kzalloc(len + 2, GFP_NOFS);
> if (!mgcname || !niduuid) {
> rc = -ENOMEM;
> goto out_free;
this can be simplified by using
kasprintf(&mgcname,"%s%s", LUSTRE_MGC_OBDNAME, libcfs_nid2str(nid));
is guess the some is true for niduuid
> @@ -257,7 +257,7 @@ int lustre_start_mgc(struct super_block
>
> mgssec = lsi->lsi_lmd->lmd_mgssec ? lsi->lsi_lmd->lmd_mgssec : "";
>
> - OBD_ALLOC_PTR(data);
> + data = kzalloc(sizeof(*data), GFP_NOFS);
> if (data == NULL) {
> rc = -ENOMEM;
> goto out_free;
> @@ -375,7 +375,7 @@ int lustre_start_mgc(struct super_block
> lsi->lsi_lmd->lmd_mgs_failnodes = 1;
>
> /* Random uuid for MGC allows easier reconnects */
> - OBD_ALLOC_PTR(uuid);
> + uuid = kzalloc(sizeof(*uuid), GFP_NOFS);
> if (!uuid) {
> rc = -ENOMEM;
> goto out_free;
> @@ -388,7 +388,7 @@ int lustre_start_mgc(struct super_block
> rc = lustre_start_simple(mgcname, LUSTRE_MGC_NAME,
> (char *)uuid->uuid, LUSTRE_MGS_OBDNAME,
> niduuid, NULL, NULL);
> - OBD_FREE_PTR(uuid);
> + kfree(uuid);
> if (rc)
> goto out_free;
>
> @@ -465,11 +465,11 @@ out_free:
> mutex_unlock(&mgc_start_lock);
>
> if (data)
> - OBD_FREE_PTR(data);
> + kfree(data);
> if (mgcname)
> - OBD_FREE(mgcname, len);
> + kfree(mgcname);
> if (niduuid)
> - OBD_FREE(niduuid, len + 2);
> + kfree(niduuid);
> return rc;
> }
>
> @@ -513,7 +513,7 @@ static int lustre_stop_mgc(struct super_
> /* Save the obdname for cleaning the nid uuids, which are
> obdname_XX */
> len = strlen(obd->obd_name) + 6;
> - OBD_ALLOC(niduuid, len);
> + niduuid = kzalloc(len, GFP_NOFS);
> if (niduuid) {
> strcpy(niduuid, obd->obd_name);
> ptr = niduuid + strlen(niduuid);
i guess kstrdup() would be appropiate
> @@ -539,7 +539,7 @@ static int lustre_stop_mgc(struct super_
> }
> out:
> if (niduuid)
> - OBD_FREE(niduuid, len);
> + kfree(niduuid);
>
> /* class_import_put will get rid of the additional connections */
> mutex_unlock(&mgc_start_lock);
> @@ -552,12 +552,12 @@ struct lustre_sb_info *lustre_init_lsi(s
> {
> struct lustre_sb_info *lsi;
>
> - OBD_ALLOC_PTR(lsi);
> + lsi = kzalloc(sizeof(*lsi), GFP_NOFS);
> if (!lsi)
> return NULL;
> - OBD_ALLOC_PTR(lsi->lsi_lmd);
> + lsi->lsi_lmd = kzalloc(sizeof(*lsi->lsi_lmd), GFP_NOFS);
> if (!lsi->lsi_lmd) {
> - OBD_FREE_PTR(lsi);
> + kfree(lsi);
> return NULL;
> }
>
> @@ -586,35 +586,27 @@ static int lustre_free_lsi(struct super_
>
> if (lsi->lsi_lmd != NULL) {
> if (lsi->lsi_lmd->lmd_dev != NULL)
> - OBD_FREE(lsi->lsi_lmd->lmd_dev,
> - strlen(lsi->lsi_lmd->lmd_dev) + 1);
> + kfree(lsi->lsi_lmd->lmd_dev);
> if (lsi->lsi_lmd->lmd_profile != NULL)
> - OBD_FREE(lsi->lsi_lmd->lmd_profile,
> - strlen(lsi->lsi_lmd->lmd_profile) + 1);
> + kfree(lsi->lsi_lmd->lmd_profile);
> if (lsi->lsi_lmd->lmd_mgssec != NULL)
> - OBD_FREE(lsi->lsi_lmd->lmd_mgssec,
> - strlen(lsi->lsi_lmd->lmd_mgssec) + 1);
> + kfree(lsi->lsi_lmd->lmd_mgssec);
> if (lsi->lsi_lmd->lmd_opts != NULL)
> - OBD_FREE(lsi->lsi_lmd->lmd_opts,
> - strlen(lsi->lsi_lmd->lmd_opts) + 1);
> + kfree(lsi->lsi_lmd->lmd_opts);
> if (lsi->lsi_lmd->lmd_exclude_count)
> - OBD_FREE(lsi->lsi_lmd->lmd_exclude,
> - sizeof(lsi->lsi_lmd->lmd_exclude[0]) *
> - lsi->lsi_lmd->lmd_exclude_count);
> + kfree(lsi->lsi_lmd->lmd_exclude);
> if (lsi->lsi_lmd->lmd_mgs != NULL)
> - OBD_FREE(lsi->lsi_lmd->lmd_mgs,
> - strlen(lsi->lsi_lmd->lmd_mgs) + 1);
> + kfree(lsi->lsi_lmd->lmd_mgs);
> if (lsi->lsi_lmd->lmd_osd_type != NULL)
> - OBD_FREE(lsi->lsi_lmd->lmd_osd_type,
> - strlen(lsi->lsi_lmd->lmd_osd_type) + 1);
> + kfree(lsi->lsi_lmd->lmd_osd_type);
> if (lsi->lsi_lmd->lmd_params != NULL)
> - OBD_FREE(lsi->lsi_lmd->lmd_params, 4096);
> + kfree(lsi->lsi_lmd->lmd_params);
>
> - OBD_FREE(lsi->lsi_lmd, sizeof(*lsi->lsi_lmd));
> + kfree(lsi->lsi_lmd);
> }
>
> LASSERT(lsi->lsi_llsbi == NULL);
> - OBD_FREE(lsi, sizeof(*lsi));
> + kfree(lsi);
> s2lsi_nocast(sb) = NULL;
>
> return 0;
> @@ -846,7 +838,7 @@ static int lmd_make_exclusion(struct lus
> devmax = strlen(ptr) / 8 + 1;
>
> /* temp storage until we figure out how many we have */
> - OBD_ALLOC(exclude_list, sizeof(index) * devmax);
> + exclude_list = kcalloc(devmax, sizeof(index), GFP_NOFS);
> if (!exclude_list)
> return -ENOMEM;
>
> @@ -875,8 +867,8 @@ static int lmd_make_exclusion(struct lus
>
> if (lmd->lmd_exclude_count) {
> /* permanent, freed in lustre_free_lsi */
> - OBD_ALLOC(lmd->lmd_exclude, sizeof(index) *
> - lmd->lmd_exclude_count);
> + lmd->lmd_exclude = kcalloc(lmd->lmd_exclude_count,
> + sizeof(index), GFP_NOFS);
> if (lmd->lmd_exclude) {
> memcpy(lmd->lmd_exclude, exclude_list,
> sizeof(index) * lmd->lmd_exclude_count);
> @@ -885,7 +877,7 @@ static int lmd_make_exclusion(struct lus
> lmd->lmd_exclude_count = 0;
> }
> }
> - OBD_FREE(exclude_list, sizeof(index) * devmax);
> + kfree(exclude_list);
> return rc;
> }
>
> @@ -895,7 +887,7 @@ static int lmd_parse_mgssec(struct lustr
> int length;
>
> if (lmd->lmd_mgssec != NULL) {
> - OBD_FREE(lmd->lmd_mgssec, strlen(lmd->lmd_mgssec) + 1);
> + kfree(lmd->lmd_mgssec);
> lmd->lmd_mgssec = NULL;
> }
is the check needed hier at all ? just
kfree(lmd->lmd_mgssec);
seems to do the same job.
>
> @@ -905,7 +897,7 @@ static int lmd_parse_mgssec(struct lustr
> else
> length = tail - ptr;
>
> - OBD_ALLOC(lmd->lmd_mgssec, length + 1);
> + lmd->lmd_mgssec = kzalloc(length + 1, GFP_NOFS);
> if (lmd->lmd_mgssec == NULL)
> return -ENOMEM;
>
complicated why to say:
lmd->lmd_mgssec=kstrndup(ptr, length,GFP_NOFS);
> @@ -923,7 +915,7 @@ static int lmd_parse_string(char **handl
> return -EINVAL;
>
> if (*handle != NULL) {
> - OBD_FREE(*handle, strlen(*handle) + 1);
> + kfree(*handle);
> *handle = NULL;
> }
>
> @@ -933,7 +925,7 @@ static int lmd_parse_string(char **handl
> else
> length = tail - ptr;
>
> - OBD_ALLOC(*handle, length + 1);
> + *handle = kzalloc(length + 1, GFP_NOFS);
> if (*handle == NULL)
> return -ENOMEM;
>
lmd_parse_string() seems more or less the same as lmd_parse_mgssec().
perhaps this can be merged.
> @@ -963,7 +955,7 @@ static int lmd_parse_mgs(struct lustre_m
> if (lmd->lmd_mgs != NULL)
> oldlen = strlen(lmd->lmd_mgs) + 1;
>
> - OBD_ALLOC(mgsnid, oldlen + length + 1);
> + mgsnid = kzalloc(oldlen + length + 1, GFP_NOFS);
> if (mgsnid == NULL)
> return -ENOMEM;
>
> @@ -971,7 +963,7 @@ static int lmd_parse_mgs(struct lustre_m
> /* Multiple mgsnid= are taken to mean failover locations */
> memcpy(mgsnid, lmd->lmd_mgs, oldlen);
> mgsnid[oldlen - 1] = ':';
> - OBD_FREE(lmd->lmd_mgs, oldlen);
> + kfree(lmd->lmd_mgs);
> }
> memcpy(mgsnid + oldlen, *ptr, length);
> mgsnid[oldlen + length] = '\0';
the code lmd_parse_mgs basicly does:
kasprintf( &lmd->lmd_mgs,"%s:%s",lmd->lmd_mgs,*ptr);
> @@ -1005,7 +997,7 @@ static int lmd_parse(char *options, stru
> }
> lmd->lmd_magic = LMD_MAGIC;
>
> - OBD_ALLOC(lmd->lmd_params, 4096);
> + lmd->lmd_params = kzalloc(4096, GFP_NOFS);
> if (lmd->lmd_params == NULL)
> return -ENOMEM;
> lmd->lmd_params[0] = '\0';
> @@ -1143,14 +1135,14 @@ static int lmd_parse(char *options, stru
> /* Remove leading /s from fsname */
> while (*++s1 == '/') ;
> /* Freed in lustre_free_lsi */
> - OBD_ALLOC(lmd->lmd_profile, strlen(s1) + 8);
> + lmd->lmd_profile = kzalloc(strlen(s1) + 8, GFP_NOFS);
> if (!lmd->lmd_profile)
> return -ENOMEM;
> sprintf(lmd->lmd_profile, "%s-client", s1);
> }
>
> /* Freed in lustre_free_lsi */
> - OBD_ALLOC(lmd->lmd_dev, strlen(devname) + 1);
> + lmd->lmd_dev = kzalloc(strlen(devname) + 1, GFP_NOFS);
> if (!lmd->lmd_dev)
> return -ENOMEM;
> strcpy(lmd->lmd_dev, devname);
> @@ -1161,7 +1153,7 @@ static int lmd_parse(char *options, stru
> *s1-- = 0;
> if (*options != 0) {
> /* Freed in lustre_free_lsi */
> - OBD_ALLOC(lmd->lmd_opts, strlen(options) + 1);
> + lmd->lmd_opts = kzalloc(strlen(options) + 1, GFP_NOFS);
> if (!lmd->lmd_opts)
> return -ENOMEM;
> strcpy(lmd->lmd_opts, options);
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/obd_config.c b/drivers/staging/lustre/lustre/obdclass/obd_config.c
> --- a/drivers/staging/lustre/lustre/obdclass/obd_config.c
> +++ b/drivers/staging/lustre/lustre/obdclass/obd_config.c
> @@ -860,13 +860,13 @@ int class_add_profile(int proflen, char
>
> CDEBUG(D_CONFIG, "Add profile %s\n", prof);
>
> - OBD_ALLOC(lprof, sizeof(*lprof));
> + lprof = kzalloc(sizeof(*lprof), GFP_NOFS);
> if (lprof == NULL)
> return -ENOMEM;
> INIT_LIST_HEAD(&lprof->lp_list);
>
> LASSERT(proflen == (strlen(prof) + 1));
> - OBD_ALLOC(lprof->lp_profile, proflen);
> + lprof->lp_profile = kzalloc(proflen, GFP_NOFS);
> if (lprof->lp_profile == NULL) {
> err = -ENOMEM;
> goto out;
> @@ -874,7 +874,7 @@ int class_add_profile(int proflen, char
> memcpy(lprof->lp_profile, prof, proflen);
>
> LASSERT(osclen == (strlen(osc) + 1));
> - OBD_ALLOC(lprof->lp_dt, osclen);
> + lprof->lp_dt = kzalloc(osclen, GFP_NOFS);
> if (lprof->lp_dt == NULL) {
> err = -ENOMEM;
> goto out;
> @@ -883,7 +883,7 @@ int class_add_profile(int proflen, char
>
> if (mdclen > 0) {
> LASSERT(mdclen == (strlen(mdc) + 1));
> - OBD_ALLOC(lprof->lp_md, mdclen);
> + lprof->lp_md = kzalloc(mdclen, GFP_NOFS);
> if (lprof->lp_md == NULL) {
> err = -ENOMEM;
> goto out;
> @@ -896,12 +896,12 @@ int class_add_profile(int proflen, char
>
> out:
> if (lprof->lp_md)
> - OBD_FREE(lprof->lp_md, mdclen);
> + kfree(lprof->lp_md);
> if (lprof->lp_dt)
> - OBD_FREE(lprof->lp_dt, osclen);
> + kfree(lprof->lp_dt);
> if (lprof->lp_profile)
> - OBD_FREE(lprof->lp_profile, proflen);
> - OBD_FREE(lprof, sizeof(*lprof));
> + kfree(lprof->lp_profile);
> + kfree(lprof);
> return err;
> }
>
> @@ -914,11 +914,11 @@ void class_del_profile(const char *prof)
> lprof = class_get_profile(prof);
> if (lprof) {
> list_del(&lprof->lp_list);
> - OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
> - OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
> + kfree(lprof->lp_profile);
> + kfree(lprof->lp_dt);
> if (lprof->lp_md)
> - OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
> - OBD_FREE(lprof, sizeof(*lprof));
> + kfree(lprof->lp_md);
> + kfree(lprof);
> }
> }
> EXPORT_SYMBOL(class_del_profile);
> @@ -930,11 +930,11 @@ void class_del_profiles(void)
>
> list_for_each_entry_safe(lprof, n, &lustre_profile_list, lp_list) {
> list_del(&lprof->lp_list);
> - OBD_FREE(lprof->lp_profile, strlen(lprof->lp_profile) + 1);
> - OBD_FREE(lprof->lp_dt, strlen(lprof->lp_dt) + 1);
> + kfree(lprof->lp_profile);
> + kfree(lprof->lp_dt);
> if (lprof->lp_md)
> - OBD_FREE(lprof->lp_md, strlen(lprof->lp_md) + 1);
> - OBD_FREE(lprof, sizeof(*lprof));
> + kfree(lprof->lp_md);
> + kfree(lprof);
> }
> }
> EXPORT_SYMBOL(class_del_profiles);
> @@ -1011,7 +1011,7 @@ struct lustre_cfg *lustre_cfg_rename(str
>
> new_len = LUSTRE_CFG_BUFLEN(cfg, 1) + strlen(new_name) - name_len;
>
> - OBD_ALLOC(new_param, new_len);
> + new_param = kzalloc(new_len, GFP_NOFS);
> if (new_param == NULL)
> return ERR_PTR(-ENOMEM);
>
> @@ -1019,9 +1019,9 @@ struct lustre_cfg *lustre_cfg_rename(str
> if (value != NULL)
> strcat(new_param, value);
>
> - OBD_ALLOC_PTR(bufs);
> + bufs = kzalloc(sizeof(*bufs), GFP_NOFS);
> if (bufs == NULL) {
> - OBD_FREE(new_param, new_len);
> + kfree(new_param);
> return ERR_PTR(-ENOMEM);
> }
>
> @@ -1031,8 +1031,8 @@ struct lustre_cfg *lustre_cfg_rename(str
>
> new_cfg = lustre_cfg_new(cfg->lcfg_command, bufs);
>
> - OBD_FREE(new_param, new_len);
> - OBD_FREE_PTR(bufs);
> + kfree(new_param);
> + kfree(bufs);
> if (new_cfg == NULL)
> return ERR_PTR(-ENOMEM);
>
> @@ -1493,7 +1493,7 @@ int class_config_llog_handler(const stru
> inst = 1;
> inst_len = LUSTRE_CFG_BUFLEN(lcfg, 0) +
> sizeof(clli->cfg_instance) * 2 + 4;
> - OBD_ALLOC(inst_name, inst_len);
> + inst_name = kzalloc(inst_len, GFP_NOFS);
> if (inst_name == NULL) {
> rc = -ENOMEM;
> goto out;
> @@ -1556,7 +1556,7 @@ int class_config_llog_handler(const stru
> lustre_cfg_free(lcfg_new);
>
> if (inst)
> - OBD_FREE(inst_name, inst_len);
> + kfree(inst_name);
> break;
> }
> default:
> @@ -1671,7 +1671,7 @@ int class_config_dump_handler(const stru
> char *outstr;
> int rc = 0;
>
> - OBD_ALLOC(outstr, 256);
> + outstr = kzalloc(256, GFP_NOFS);
> if (outstr == NULL)
> return -ENOMEM;
>
> @@ -1683,7 +1683,7 @@ int class_config_dump_handler(const stru
> rc = -EINVAL;
> }
>
> - OBD_FREE(outstr, 256);
> + kfree(outstr);
> return rc;
> }
>
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/lustre_peer.c b/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
> --- a/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
> +++ b/drivers/staging/lustre/lustre/obdclass/lustre_peer.c
> @@ -104,7 +104,7 @@ int class_add_uuid(const char *uuid, __u
> if (strlen(uuid) > UUID_MAX - 1)
> return -EOVERFLOW;
>
> - OBD_ALLOC_PTR(data);
> + data = kzalloc(sizeof(*data), GFP_NOFS);
> if (data == NULL)
> return -ENOMEM;
>
> @@ -136,7 +136,7 @@ int class_add_uuid(const char *uuid, __u
> if (found) {
> CDEBUG(D_INFO, "found uuid %s %s cnt=%d\n", uuid,
> libcfs_nid2str(nid), entry->un_nid_count);
> - OBD_FREE(data, sizeof(*data));
> + kfree(data);
> } else {
> CDEBUG(D_INFO, "add uuid %s %s\n", uuid, libcfs_nid2str(nid));
> }
> @@ -180,7 +180,7 @@ int class_del_uuid(const char *uuid)
> libcfs_nid2str(data->un_nids[0]),
> data->un_nid_count);
>
> - OBD_FREE(data, sizeof(*data));
> + kfree(data);
> }
>
> return 0;
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/lustre_handles.c b/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
> --- a/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
> +++ b/drivers/staging/lustre/lustre/obdclass/lustre_handles.c
> @@ -186,7 +186,7 @@ void class_handle_free_cb(struct rcu_hea
> if (h->h_ops->hop_free != NULL)
> h->h_ops->hop_free(ptr, h->h_size);
> else
> - OBD_FREE(ptr, h->h_size);
> + kfree(ptr);
> }
> EXPORT_SYMBOL(class_handle_free_cb);
>
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/lu_object.c b/drivers/staging/lustre/lustre/obdclass/lu_object.c
> --- a/drivers/staging/lustre/lustre/obdclass/lu_object.c
> +++ b/drivers/staging/lustre/lustre/obdclass/lu_object.c
> @@ -1532,7 +1532,7 @@ static void keys_fini(struct lu_context
> for (i = 0; i < ARRAY_SIZE(lu_keys); ++i)
> key_fini(ctx, i);
>
> - OBD_FREE(ctx->lc_value, ARRAY_SIZE(lu_keys) * sizeof(ctx->lc_value[0]));
> + kfree(ctx->lc_value);
> ctx->lc_value = NULL;
> }
>
> @@ -1581,8 +1581,8 @@ static int keys_fill(struct lu_context *
>
> static int keys_init(struct lu_context *ctx)
> {
> - OBD_ALLOC(ctx->lc_value,
> - ARRAY_SIZE(lu_keys) * sizeof(ctx->lc_value[0]));
> + ctx->lc_value = kcalloc(ARRAY_SIZE(lu_keys), sizeof(ctx->lc_value[0]),
> + GFP_NOFS);
> if (likely(ctx->lc_value != NULL))
> return keys_fill(ctx);
>
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
> --- a/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
> +++ b/drivers/staging/lustre/lustre/obdclass/lprocfs_status.c
> @@ -276,7 +276,7 @@ struct proc_dir_entry *lprocfs_add_symli
> if (parent == NULL || format == NULL)
> return NULL;
>
> - OBD_ALLOC_WAIT(dest, MAX_STRING_SIZE + 1);
> + dest = kzalloc(MAX_STRING_SIZE + 1, GFP_KERNEL);
> if (dest == NULL)
> return NULL;
>
> @@ -289,7 +289,7 @@ struct proc_dir_entry *lprocfs_add_symli
> CERROR("LprocFS: Could not create symbolic link from %s to %s",
> name, dest);
>
> - OBD_FREE(dest, MAX_STRING_SIZE + 1);
> + kfree(dest);
> return entry;
> }
> EXPORT_SYMBOL(lprocfs_add_symlink);
> @@ -1006,7 +1006,7 @@ static void lprocfs_free_client_stats(st
> if (client_stat->nid_ldlm_stats)
> lprocfs_free_stats(&client_stat->nid_ldlm_stats);
>
> - OBD_FREE_PTR(client_stat);
> + kfree(client_stat);
> return;
>
> }
> @@ -1681,7 +1681,7 @@ int lprocfs_exp_setup(struct obd_export
>
> CDEBUG(D_CONFIG, "using hash %p\n", obd->obd_nid_stats_hash);
>
> - OBD_ALLOC_PTR(new_stat);
> + new_stat = kzalloc(sizeof(*new_stat), GFP_NOFS);
> if (new_stat == NULL)
> return -ENOMEM;
>
> @@ -1711,7 +1711,7 @@ int lprocfs_exp_setup(struct obd_export
> goto destroy_new;
> }
> /* not found - create */
> - OBD_ALLOC(buffer, LNET_NIDSTR_SIZE);
> + buffer = kzalloc(LNET_NIDSTR_SIZE, GFP_NOFS);
> if (buffer == NULL) {
> rc = -ENOMEM;
> goto destroy_new;
> @@ -1721,7 +1721,7 @@ int lprocfs_exp_setup(struct obd_export
> new_stat->nid_proc = lprocfs_register(buffer,
> obd->obd_proc_exports_entry,
> NULL, NULL);
> - OBD_FREE(buffer, LNET_NIDSTR_SIZE);
> + kfree(buffer);
>
> if (IS_ERR(new_stat->nid_proc)) {
> CERROR("Error making export directory for nid %s\n",
> @@ -1763,7 +1763,7 @@ destroy_new_ns:
>
> destroy_new:
> nidstat_putref(new_stat);
> - OBD_FREE_PTR(new_stat);
> + kfree(new_stat);
> return rc;
> }
> EXPORT_SYMBOL(lprocfs_exp_setup);
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/llog_obd.c b/drivers/staging/lustre/lustre/obdclass/llog_obd.c
> --- a/drivers/staging/lustre/lustre/obdclass/llog_obd.c
> +++ b/drivers/staging/lustre/lustre/obdclass/llog_obd.c
> @@ -46,7 +46,7 @@ static struct llog_ctxt *llog_new_ctxt(s
> {
> struct llog_ctxt *ctxt;
>
> - OBD_ALLOC_PTR(ctxt);
> + ctxt = kzalloc(sizeof(*ctxt), GFP_NOFS);
> if (!ctxt)
> return NULL;
>
> @@ -66,7 +66,7 @@ static void llog_ctxt_destroy(struct llo
> class_import_put(ctxt->loc_imp);
> ctxt->loc_imp = NULL;
> }
> - OBD_FREE_PTR(ctxt);
> + kfree(ctxt);
> }
>
> int __llog_ctxt_put(const struct lu_env *env, struct llog_ctxt *ctxt)
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/llog.c b/drivers/staging/lustre/lustre/obdclass/llog.c
> --- a/drivers/staging/lustre/lustre/obdclass/llog.c
> +++ b/drivers/staging/lustre/lustre/obdclass/llog.c
> @@ -60,7 +60,7 @@ static struct llog_handle *llog_alloc_ha
> {
> struct llog_handle *loghandle;
>
> - OBD_ALLOC_PTR(loghandle);
> + loghandle = kzalloc(sizeof(*loghandle), GFP_NOFS);
> if (loghandle == NULL)
> return NULL;
>
> @@ -88,9 +88,9 @@ static void llog_free_handle(struct llog
> else if (loghandle->lgh_hdr->llh_flags & LLOG_F_IS_CAT)
> LASSERT(list_empty(&loghandle->u.chd.chd_head));
> LASSERT(sizeof(*(loghandle->lgh_hdr)) == LLOG_CHUNK_SIZE);
> - OBD_FREE(loghandle->lgh_hdr, LLOG_CHUNK_SIZE);
> + kfree(loghandle->lgh_hdr);
> out:
> - OBD_FREE_PTR(loghandle);
> + kfree(loghandle);
> }
>
> void llog_handle_get(struct llog_handle *loghandle)
> @@ -207,7 +207,7 @@ int llog_init_handle(const struct lu_env
>
> LASSERT(handle->lgh_hdr == NULL);
>
> - OBD_ALLOC_PTR(llh);
> + llh = kzalloc(sizeof(*llh), GFP_NOFS);
> if (llh == NULL)
> return -ENOMEM;
> handle->lgh_hdr = llh;
> @@ -261,7 +261,7 @@ int llog_init_handle(const struct lu_env
> }
> out:
> if (rc) {
> - OBD_FREE_PTR(llh);
> + kfree(llh);
> handle->lgh_hdr = NULL;
> }
> return rc;
> @@ -283,7 +283,7 @@ static int llog_process_thread(void *arg
>
> LASSERT(llh);
>
> - OBD_ALLOC(buf, LLOG_CHUNK_SIZE);
> + buf = kzalloc(LLOG_CHUNK_SIZE, GFP_NOFS);
> if (!buf) {
> lpi->lpi_rc = -ENOMEM;
> return 0;
> @@ -400,7 +400,7 @@ out:
> if (cd != NULL)
> cd->lpcd_last_idx = last_called_index;
>
> - OBD_FREE(buf, LLOG_CHUNK_SIZE);
> + kfree(buf);
> lpi->lpi_rc = rc;
> return 0;
> }
> @@ -434,7 +434,7 @@ int llog_process_or_fork(const struct lu
> struct llog_process_info *lpi;
> int rc;
>
> - OBD_ALLOC_PTR(lpi);
> + lpi = kzalloc(sizeof(*lpi), GFP_NOFS);
> if (lpi == NULL) {
> CERROR("cannot alloc pointer\n");
> return -ENOMEM;
> @@ -454,7 +454,7 @@ int llog_process_or_fork(const struct lu
> if (IS_ERR_VALUE(rc)) {
> CERROR("%s: cannot start thread: rc = %d\n",
> loghandle->lgh_ctxt->loc_obd->obd_name, rc);
> - OBD_FREE_PTR(lpi);
> + kfree(lpi);
> return rc;
> }
> wait_for_completion(&lpi->lpi_completion);
> @@ -463,7 +463,7 @@ int llog_process_or_fork(const struct lu
> llog_process_thread(lpi);
> }
> rc = lpi->lpi_rc;
> - OBD_FREE_PTR(lpi);
> + kfree(lpi);
> return rc;
> }
> EXPORT_SYMBOL(llog_process_or_fork);
> @@ -484,7 +484,7 @@ int llog_reverse_process(const struct lu
> void *buf;
> int rc = 0, first_index = 1, index, idx;
>
> - OBD_ALLOC(buf, LLOG_CHUNK_SIZE);
> + buf = kzalloc(LLOG_CHUNK_SIZE, GFP_NOFS);
> if (!buf)
> return -ENOMEM;
>
> @@ -564,7 +564,7 @@ int llog_reverse_process(const struct lu
>
> out:
> if (buf)
> - OBD_FREE(buf, LLOG_CHUNK_SIZE);
> + kfree(buf);
> return rc;
> }
> EXPORT_SYMBOL(llog_reverse_process);
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/genops.c b/drivers/staging/lustre/lustre/obdclass/genops.c
> --- a/drivers/staging/lustre/lustre/obdclass/genops.c
> +++ b/drivers/staging/lustre/lustre/obdclass/genops.c
> @@ -171,13 +171,13 @@ int class_register_type(struct obd_ops *
> }
>
> rc = -ENOMEM;
> - OBD_ALLOC(type, sizeof(*type));
> + type = kzalloc(sizeof(*type), GFP_NOFS);
> if (type == NULL)
> return rc;
>
> - OBD_ALLOC_PTR(type->typ_dt_ops);
> - OBD_ALLOC_PTR(type->typ_md_ops);
> - OBD_ALLOC(type->typ_name, strlen(name) + 1);
> + type->typ_dt_ops = kzalloc(sizeof(*type->typ_dt_ops), GFP_NOFS);
> + type->typ_md_ops = kzalloc(sizeof(*type->typ_md_ops), GFP_NOFS);
> + type->typ_name = kzalloc(strlen(name) + 1, GFP_NOFS);
>
> if (type->typ_dt_ops == NULL ||
> type->typ_md_ops == NULL ||
> @@ -214,12 +214,12 @@ int class_register_type(struct obd_ops *
>
> failed:
> if (type->typ_name != NULL)
> - OBD_FREE(type->typ_name, strlen(name) + 1);
> + kfree(type->typ_name);
> if (type->typ_md_ops != NULL)
> - OBD_FREE_PTR(type->typ_md_ops);
> + kfree(type->typ_md_ops);
> if (type->typ_dt_ops != NULL)
> - OBD_FREE_PTR(type->typ_dt_ops);
> - OBD_FREE(type, sizeof(*type));
> + kfree(type->typ_dt_ops);
> + kfree(type);
> return rc;
> }
> EXPORT_SYMBOL(class_register_type);
> @@ -237,8 +237,8 @@ int class_unregister_type(const char *na
> CERROR("type %s has refcount (%d)\n", name, type->typ_refcnt);
> /* This is a bad situation, let's make the best of it */
> /* Remove ops, but leave the name for debugging */
> - OBD_FREE_PTR(type->typ_dt_ops);
> - OBD_FREE_PTR(type->typ_md_ops);
> + kfree(type->typ_dt_ops);
> + kfree(type->typ_md_ops);
> return -EBUSY;
> }
>
> @@ -252,12 +252,12 @@ int class_unregister_type(const char *na
> spin_lock(&obd_types_lock);
> list_del(&type->typ_chain);
> spin_unlock(&obd_types_lock);
> - OBD_FREE(type->typ_name, strlen(name) + 1);
> + kfree(type->typ_name);
> if (type->typ_dt_ops != NULL)
> - OBD_FREE_PTR(type->typ_dt_ops);
> + kfree(type->typ_dt_ops);
> if (type->typ_md_ops != NULL)
> - OBD_FREE_PTR(type->typ_md_ops);
> - OBD_FREE(type, sizeof(*type));
> + kfree(type->typ_md_ops);
> + kfree(type);
> return 0;
> } /* class_unregister_type */
> EXPORT_SYMBOL(class_unregister_type);
> @@ -819,7 +819,7 @@ struct obd_export *class_new_export(stru
> struct cfs_hash *hash = NULL;
> int rc = 0;
>
> - OBD_ALLOC_PTR(export);
> + export = kzalloc(sizeof(*export), GFP_NOFS);
> if (!export)
> return ERR_PTR(-ENOMEM);
>
> @@ -904,7 +904,7 @@ exit_err:
> class_handle_unhash(&export->exp_handle);
> LASSERT(hlist_unhashed(&export->exp_uuid_hash));
> obd_destroy_export(export);
> - OBD_FREE_PTR(export);
> + kfree(export);
> return ERR_PTR(rc);
> }
> EXPORT_SYMBOL(class_new_export);
> @@ -945,7 +945,7 @@ static void class_import_destroy(struct
> struct obd_import_conn, oic_item);
> list_del_init(&imp_conn->oic_item);
> ptlrpc_put_connection_superhack(imp_conn->oic_conn);
> - OBD_FREE(imp_conn, sizeof(*imp_conn));
> + kfree(imp_conn);
> }
>
> LASSERT(imp->imp_sec == NULL);
> @@ -1008,7 +1008,7 @@ struct obd_import *class_new_import(stru
> {
> struct obd_import *imp;
>
> - OBD_ALLOC(imp, sizeof(*imp));
> + imp = kzalloc(sizeof(*imp), GFP_NOFS);
> if (imp == NULL)
> return NULL;
>
> @@ -1811,7 +1811,7 @@ void *kuc_alloc(int payload_len, int tra
> struct kuc_hdr *lh;
> int len = kuc_len(payload_len);
>
> - OBD_ALLOC(lh, len);
> + lh = kzalloc(len, GFP_NOFS);
> if (lh == NULL)
> return ERR_PTR(-ENOMEM);
>
> @@ -1828,6 +1828,6 @@ EXPORT_SYMBOL(kuc_alloc);
> inline void kuc_free(void *p, int payload_len)
> {
> struct kuc_hdr *lh = kuc_ptr(p);
> - OBD_FREE(lh, kuc_len(payload_len));
> + kfree(lh);
> }
> EXPORT_SYMBOL(kuc_free);
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/class_obd.c b/drivers/staging/lustre/lustre/obdclass/class_obd.c
> --- a/drivers/staging/lustre/lustre/obdclass/class_obd.c
> +++ b/drivers/staging/lustre/lustre/obdclass/class_obd.c
> @@ -231,7 +231,7 @@ int class_handle_ioctl(unsigned int cmd,
> err = -EINVAL;
> goto out;
> }
> - OBD_ALLOC(lcfg, data->ioc_plen1);
> + lcfg = kzalloc(data->ioc_plen1, GFP_NOFS);
> if (lcfg == NULL) {
> err = -ENOMEM;
> goto out;
> @@ -243,7 +243,7 @@ int class_handle_ioctl(unsigned int cmd,
> if (!err)
> err = class_process_config(lcfg);
>
> - OBD_FREE(lcfg, data->ioc_plen1);
> + kfree(lcfg);
> goto out;
> }
>
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/cl_page.c b/drivers/staging/lustre/lustre/obdclass/cl_page.c
> --- a/drivers/staging/lustre/lustre/obdclass/cl_page.c
> +++ b/drivers/staging/lustre/lustre/obdclass/cl_page.c
> @@ -270,7 +270,7 @@ static void cl_page_free(const struct lu
> lu_object_ref_del_at(&obj->co_lu, &page->cp_obj_ref, "cl_page", page);
> cl_object_put(env, obj);
> lu_ref_fini(&page->cp_reference);
> - OBD_FREE(page, pagesize);
> + kfree(page);
> }
>
> /**
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/cl_io.c b/drivers/staging/lustre/lustre/obdclass/cl_io.c
> --- a/drivers/staging/lustre/lustre/obdclass/cl_io.c
> +++ b/drivers/staging/lustre/lustre/obdclass/cl_io.c
> @@ -612,7 +612,7 @@ EXPORT_SYMBOL(cl_io_lock_add);
> static void cl_free_io_lock_link(const struct lu_env *env,
> struct cl_io_lock_link *link)
> {
> - OBD_FREE_PTR(link);
> + kfree(link);
> }
>
> /**
> @@ -624,7 +624,7 @@ int cl_io_lock_alloc_add(const struct lu
> struct cl_io_lock_link *link;
> int result;
>
> - OBD_ALLOC_PTR(link);
> + link = kzalloc(sizeof(*link), GFP_NOFS);
> if (link != NULL) {
> link->cill_descr = *descr;
> link->cill_fini = cl_free_io_lock_link;
> @@ -1387,9 +1387,9 @@ static void cl_req_free(const struct lu_
> cl_object_put(env, obj);
> }
> }
> - OBD_FREE(req->crq_o, req->crq_nrobjs * sizeof(req->crq_o[0]));
> + kfree(req->crq_o);
> }
> - OBD_FREE_PTR(req);
> + kfree(req);
> }
>
> static int cl_req_init(const struct lu_env *env, struct cl_req *req,
> @@ -1448,7 +1448,7 @@ struct cl_req *cl_req_alloc(const struct
>
> LINVRNT(nr_objects > 0);
>
> - OBD_ALLOC_PTR(req);
> + req = kzalloc(sizeof(*req), GFP_NOFS);
> if (req != NULL) {
> int result;
>
> @@ -1456,7 +1456,8 @@ struct cl_req *cl_req_alloc(const struct
> INIT_LIST_HEAD(&req->crq_pages);
> INIT_LIST_HEAD(&req->crq_layers);
>
> - OBD_ALLOC(req->crq_o, nr_objects * sizeof(req->crq_o[0]));
> + req->crq_o = kcalloc(nr_objects, sizeof(req->crq_o[0]),
> + GFP_NOFS);
> if (req->crq_o != NULL) {
> req->crq_nrobjs = nr_objects;
> result = cl_req_init(env, req, page);
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/capa.c b/drivers/staging/lustre/lustre/obdclass/capa.c
> --- a/drivers/staging/lustre/lustre/obdclass/capa.c
> +++ b/drivers/staging/lustre/lustre/obdclass/capa.c
> @@ -87,7 +87,7 @@ struct hlist_head *init_capa_hash(void)
> struct hlist_head *hash;
> int nr_hash, i;
>
> - OBD_ALLOC(hash, PAGE_CACHE_SIZE);
> + hash = kzalloc(PAGE_CACHE_SIZE, GFP_NOFS);
> if (!hash)
> return NULL;
>
> @@ -129,7 +129,7 @@ void cleanup_capa_hash(struct hlist_head
> }
> spin_unlock(&capa_lock);
>
> - OBD_FREE(hash, PAGE_CACHE_SIZE);
> + kfree(hash);
> }
> EXPORT_SYMBOL(cleanup_capa_hash);
>
> diff -u -p a/drivers/staging/lustre/lustre/obdclass/acl.c b/drivers/staging/lustre/lustre/obdclass/acl.c
> --- a/drivers/staging/lustre/lustre/obdclass/acl.c
> +++ b/drivers/staging/lustre/lustre/obdclass/acl.c
> @@ -104,12 +104,12 @@ static int lustre_posix_acl_xattr_reduce
> if (unlikely(old_count <= new_count))
> return old_size;
>
> - OBD_ALLOC(new, new_size);
> + new = kzalloc(new_size, GFP_NOFS);
> if (unlikely(new == NULL))
> return -ENOMEM;
>
> memcpy(new, *header, new_size);
> - OBD_FREE(*header, old_size);
> + kfree(*header);
> *header = new;
> return new_size;
> }
> @@ -126,12 +126,12 @@ static int lustre_ext_acl_xattr_reduce_s
> if (unlikely(old_count <= ext_count))
> return 0;
>
> - OBD_ALLOC(new, ext_size);
> + new = kzalloc(ext_size, GFP_NOFS);
> if (unlikely(new == NULL))
> return -ENOMEM;
>
> memcpy(new, *header, ext_size);
> - OBD_FREE(*header, old_size);
> + kfree(*header);
> *header = new;
> return 0;
> }
> @@ -152,7 +152,7 @@ lustre_posix_acl_xattr_2ext(posix_acl_xa
> else
> count = CFS_ACL_XATTR_COUNT(size, posix_acl_xattr);
> esize = CFS_ACL_XATTR_SIZE(count, ext_acl_xattr);
> - OBD_ALLOC(new, esize);
> + new = kzalloc(esize, GFP_NOFS);
> if (unlikely(new == NULL))
> return ERR_PTR(-ENOMEM);
>
> @@ -183,7 +183,7 @@ int lustre_posix_acl_xattr_filter(posix_
> if (size < sizeof(*new))
> return -EINVAL;
>
> - OBD_ALLOC(new, size);
> + new = kzalloc(size, GFP_NOFS);
> if (unlikely(new == NULL))
> return -ENOMEM;
>
> @@ -232,7 +232,7 @@ int lustre_posix_acl_xattr_filter(posix_
>
> _out:
> if (rc) {
> - OBD_FREE(new, size);
> + kfree(new);
> size = rc;
> }
> return size;
> @@ -244,7 +244,7 @@ EXPORT_SYMBOL(lustre_posix_acl_xattr_fil
> */
> void lustre_posix_acl_xattr_free(posix_acl_xattr_header *header, int size)
> {
> - OBD_FREE(header, size);
> + kfree(header);
> }
> EXPORT_SYMBOL(lustre_posix_acl_xattr_free);
>
> @@ -253,8 +253,7 @@ EXPORT_SYMBOL(lustre_posix_acl_xattr_fre
> */
> void lustre_ext_acl_xattr_free(ext_acl_xattr_header *header)
> {
> - OBD_FREE(header, CFS_ACL_XATTR_SIZE(le32_to_cpu(header->a_count), \
> - ext_acl_xattr));
> + kfree(header);
> }
> EXPORT_SYMBOL(lustre_ext_acl_xattr_free);
>
> @@ -309,7 +308,7 @@ int lustre_acl_xattr_merge2posix(posix_a
> /* there are only base ACL entries at most. */
> posix_count = 3;
> posix_size = CFS_ACL_XATTR_SIZE(posix_count, posix_acl_xattr);
> - OBD_ALLOC(new, posix_size);
> + new = kzalloc(posix_size, GFP_NOFS);
> if (unlikely(new == NULL))
> return -ENOMEM;
>
> @@ -360,7 +359,7 @@ int lustre_acl_xattr_merge2posix(posix_a
> posix_count = ori_posix_count + ext_count;
> posix_size =
> CFS_ACL_XATTR_SIZE(posix_count, posix_acl_xattr);
> - OBD_ALLOC(new, posix_size);
> + new = kzalloc(posix_size, GFP_NOFS);
> if (unlikely(new == NULL))
> return -ENOMEM;
>
> @@ -402,7 +401,7 @@ int lustre_acl_xattr_merge2posix(posix_a
>
> _out:
> if (rc) {
> - OBD_FREE(new, posix_size);
> + kfree(new);
> posix_size = rc;
> }
> return posix_size;
> @@ -432,7 +431,7 @@ lustre_acl_xattr_merge2ext(posix_acl_xat
> ext_count = posix_count + ori_ext_count;
> ext_size = CFS_ACL_XATTR_SIZE(ext_count, ext_acl_xattr);
>
> - OBD_ALLOC(new, ext_size);
> + new = kzalloc(ext_size, GFP_NOFS);
> if (unlikely(new == NULL))
> return ERR_PTR(-ENOMEM);
>
> @@ -538,7 +537,7 @@ lustre_acl_xattr_merge2ext(posix_acl_xat
>
> out:
> if (rc) {
> - OBD_FREE(new, ext_size);
> + kfree(new);
> new = ERR_PTR(rc);
> }
> return new;
>
> --
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