staging: lustre: obdecho: Use kzalloc and kfree

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@lip6.fr>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/lustre/lustre/obdecho/echo_client.c b/drivers/staging/lustre/lustre/obdecho/echo_client.c
index d542e06d6cd38ef8cb394a4758038d77721fb5b7..cf645388dc7583ded216f3075a9cf2cf8d54683f 100644 (file)
--- a/drivers/staging/lustre/lustre/obdecho/echo_client.c
+++ b/drivers/staging/lustre/lustre/obdecho/echo_client.c
@@ -479,13 +479,13 @@ static int echo_alloc_memmd(struct echo_device *ed,
        lsm_size = lov_stripe_md_size(1);
 
        LASSERT(*lsmp == NULL);
-       OBD_ALLOC(*lsmp, lsm_size);
+       *lsmp = kzalloc(lsm_size, GFP_NOFS);
        if (*lsmp == NULL)
                return -ENOMEM;
 
-       OBD_ALLOC((*lsmp)->lsm_oinfo[0], sizeof(struct lov_oinfo));
+       (*lsmp)->lsm_oinfo[0] = kzalloc(sizeof(struct lov_oinfo), GFP_NOFS);
        if ((*lsmp)->lsm_oinfo[0] == NULL) {
-               OBD_FREE(*lsmp, lsm_size);
+               kfree(*lsmp);
                return -ENOMEM;
        }
 
@@ -507,8 +507,8 @@ static int echo_free_memmd(struct echo_device *ed, struct lov_stripe_md **lsmp)
        lsm_size = lov_stripe_md_size(1);
 
        LASSERT(*lsmp != NULL);
-       OBD_FREE((*lsmp)->lsm_oinfo[0], sizeof(struct lov_oinfo));
-       OBD_FREE(*lsmp, lsm_size);
+       kfree((*lsmp)->lsm_oinfo[0]);
+       kfree(*lsmp);
        *lsmp = NULL;
        return 0;
 }
@@ -700,7 +700,7 @@ static struct lu_device *echo_device_alloc(const struct lu_env *env,
        int rc;
        int cleanup = 0;
 
-       OBD_ALLOC_PTR(ed);
+       ed = kzalloc(sizeof(*ed), GFP_NOFS);
        if (ed == NULL) {
                rc = -ENOMEM;
                goto out;
@@ -798,7 +798,7 @@ out:
        case 2:
                cl_device_fini(&ed->ed_cl);
        case 1:
-               OBD_FREE_PTR(ed);
+               kfree(ed);
        case 0:
        default:
                break;
@@ -895,7 +895,7 @@ static struct lu_device *echo_device_free(const struct lu_env *env,
        LASSERT(ed->ed_site == lu2cl_site(d->ld_site));
        echo_site_fini(env, ed);
        cl_device_fini(&ed->ed_cl);
-       OBD_FREE_PTR(ed);
+       kfree(ed);
 
        return NULL;
 }
@@ -1577,13 +1577,13 @@ static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa,
        if (rw == OBD_BRW_WRITE)
                brw_flags = OBD_BRW_ASYNC;
 
-       OBD_ALLOC(pga, npages * sizeof(*pga));
+       pga = kcalloc(npages, sizeof(*pga), GFP_NOFS);
        if (pga == NULL)
                return -ENOMEM;
 
-       OBD_ALLOC(pages, npages * sizeof(*pages));
+       pages = kcalloc(npages, sizeof(*pages), GFP_NOFS);
        if (pages == NULL) {
-               OBD_FREE(pga, npages * sizeof(*pga));
+               kfree(pga);
                return -ENOMEM;
        }
 
@@ -1632,8 +1632,8 @@ static int echo_client_kbrw(struct echo_device *ed, int rw, struct obdo *oa,
                }
                OBD_PAGE_FREE(pgp->pg);
        }
-       OBD_FREE(pga, npages * sizeof(*pga));
-       OBD_FREE(pages, npages * sizeof(*pages));
+       kfree(pga);
+       kfree(pages);
        return rc;
 }
 
@@ -1659,8 +1659,8 @@ static int echo_client_prep_commit(const struct lu_env *env,
        npages = batch >> PAGE_CACHE_SHIFT;
        tot_pages = count >> PAGE_CACHE_SHIFT;
 
-       OBD_ALLOC(lnb, npages * sizeof(struct niobuf_local));
-       OBD_ALLOC(rnb, npages * sizeof(struct niobuf_remote));
+       lnb = kcalloc(npages, sizeof(struct niobuf_local), GFP_NOFS);
+       rnb = kcalloc(npages, sizeof(struct niobuf_remote), GFP_NOFS);
 
        if (lnb == NULL || rnb == NULL) {
                ret = -ENOMEM;
@@ -1738,9 +1738,9 @@ static int echo_client_prep_commit(const struct lu_env *env,
 
 out:
        if (lnb)
-               OBD_FREE(lnb, npages * sizeof(struct niobuf_local));
+               kfree(lnb);
        if (rnb)
-               OBD_FREE(rnb, npages * sizeof(struct niobuf_remote));
+               kfree(rnb);
        return ret;
 }
 
@@ -1879,7 +1879,7 @@ echo_client_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
        if (rc < 0)
                return rc;
 
-       OBD_ALLOC_PTR(env);
+       env = kzalloc(sizeof(*env), GFP_NOFS);
        if (env == NULL)
                return -ENOMEM;
 
@@ -2010,7 +2010,7 @@ echo_client_iocontrol(unsigned int cmd, struct obd_export *exp, int len,
 
 out:
        lu_env_fini(env);
-       OBD_FREE_PTR(env);
+       kfree(env);
 
        /* XXX this should be in a helper also called by target_send_reply */
        for (ack_lock = dummy_oti.oti_ack_locks, i = 0; i < 4;
@@ -2050,7 +2050,7 @@ static int echo_client_setup(const struct lu_env *env,
        ec->ec_unique = 0;
        ec->ec_nstripes = 0;
 
-       OBD_ALLOC(ocd, sizeof(*ocd));
+       ocd = kzalloc(sizeof(*ocd), GFP_NOFS);
        if (ocd == NULL) {
                CERROR("Can't alloc ocd connecting to %s\n",
                       lustre_cfg_string(lcfg, 1));
@@ -2074,7 +2074,7 @@ static int echo_client_setup(const struct lu_env *env,
                spin_unlock(&tgt->obd_dev_lock);
        }
 
-       OBD_FREE(ocd, sizeof(*ocd));
+       kfree(ocd);
 
        if (rc != 0) {
                CERROR("fail to connect to device %s\n",