[PATCH 3/7] lustre: lov: Replace uses of OBD_{ALLOC,FREE}_LARGE

From: Julia Lawall
Date: Thu Jun 11 2015 - 08:13:09 EST


Replace uses of OBD_ALLOC_LARGE by libcfs_kvzalloc and OBD_FREE_LARGE by
kvfree.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
expression ptr,size;
@@

- OBD_ALLOC_LARGE(ptr,size)
+ ptr = libcfs_kvzalloc(size, GFP_NOFS)

@@
expression ptr,size;
@@

- OBD_FREE_LARGE(ptr, size);
+ kvfree(ptr);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@xxxxxxx>

---
drivers/staging/lustre/lustre/lov/lov_ea.c | 7 +++----
drivers/staging/lustre/lustre/lov/lov_io.c | 18 ++++++++++--------
drivers/staging/lustre/lustre/lov/lov_lock.c | 5 ++---
drivers/staging/lustre/lustre/lov/lov_obd.c | 4 ++--
drivers/staging/lustre/lustre/lov/lov_object.c | 5 +++--
drivers/staging/lustre/lustre/lov/lov_pack.c | 8 ++++----
6 files changed, 24 insertions(+), 23 deletions(-)

diff --git a/drivers/staging/lustre/lustre/lov/lov_pack.c b/drivers/staging/lustre/lustre/lov/lov_pack.c
index 92b9ffe..6b1c135 100644
--- a/drivers/staging/lustre/lustre/lov/lov_pack.c
+++ b/drivers/staging/lustre/lustre/lov/lov_pack.c
@@ -192,13 +192,13 @@ int lov_packmd(struct obd_export *exp, struct lov_mds_md **lmmp,
if (*lmmp && !lsm) {
stripe_count = le16_to_cpu((*lmmp)->lmm_stripe_count);
lmm_size = lov_mds_md_size(stripe_count, lmm_magic);
- OBD_FREE_LARGE(*lmmp, lmm_size);
+ kvfree(*lmmp);
*lmmp = NULL;
return 0;
}

if (!*lmmp) {
- OBD_ALLOC_LARGE(*lmmp, lmm_size);
+ *lmmp = libcfs_kvzalloc(lmm_size, GFP_NOFS);
if (!*lmmp)
return -ENOMEM;
}
@@ -285,7 +285,7 @@ static int lov_verify_lmm(void *lmm, int lmm_bytes, __u16 *stripe_count)
CERROR("bad disk LOV MAGIC: 0x%08X; dumping LMM (size=%d):\n",
le32_to_cpu(*(__u32 *)lmm), lmm_bytes);
sz = lmm_bytes * 2 + 1;
- OBD_ALLOC_LARGE(buffer, sz);
+ buffer = libcfs_kvzalloc(sz, GFP_NOFS);
if (buffer != NULL) {
int i;

@@ -293,7 +293,7 @@ static int lov_verify_lmm(void *lmm, int lmm_bytes, __u16 *stripe_count)
sprintf(buffer+2*i, "%.2X", ((char *)lmm)[i]);
buffer[sz - 1] = '\0';
CERROR("%s\n", buffer);
- OBD_FREE_LARGE(buffer, sz);
+ kvfree(buffer);
}
return -EINVAL;
}
diff --git a/drivers/staging/lustre/lustre/lov/lov_object.c b/drivers/staging/lustre/lustre/lov/lov_object.c
index a22342f..4d7cd92 100644
--- a/drivers/staging/lustre/lustre/lov/lov_object.c
+++ b/drivers/staging/lustre/lustre/lov/lov_object.c
@@ -218,7 +218,8 @@ static int lov_init_raid0(const struct lu_env *env,
r0->lo_nr = lsm->lsm_stripe_count;
LASSERT(r0->lo_nr <= lov_targets_nr(dev));

- OBD_ALLOC_LARGE(r0->lo_sub, r0->lo_nr * sizeof(r0->lo_sub[0]));
+ r0->lo_sub = libcfs_kvzalloc(r0->lo_nr * sizeof(r0->lo_sub[0]),
+ GFP_NOFS);
if (r0->lo_sub != NULL) {
result = 0;
subconf->coc_inode = conf->coc_inode;
@@ -375,7 +376,7 @@ static void lov_fini_raid0(const struct lu_env *env, struct lov_object *lov,
struct lov_layout_raid0 *r0 = &state->raid0;

if (r0->lo_sub != NULL) {
- OBD_FREE_LARGE(r0->lo_sub, r0->lo_nr * sizeof(r0->lo_sub[0]));
+ kvfree(r0->lo_sub);
r0->lo_sub = NULL;
}

diff --git a/drivers/staging/lustre/lustre/lov/lov_obd.c b/drivers/staging/lustre/lustre/lov/lov_obd.c
index ca1caae..96c55ac 100644
--- a/drivers/staging/lustre/lustre/lov/lov_obd.c
+++ b/drivers/staging/lustre/lustre/lov/lov_obd.c
@@ -1737,7 +1737,7 @@ static int lov_fiemap(struct lov_obd *lov, __u32 keylen, void *key,
if (fiemap_count_to_size(fm_key->fiemap.fm_extent_count) < buffer_size)
buffer_size = fiemap_count_to_size(fm_key->fiemap.fm_extent_count);

- OBD_ALLOC_LARGE(fm_local, buffer_size);
+ fm_local = libcfs_kvzalloc(buffer_size, GFP_NOFS);
if (fm_local == NULL) {
rc = -ENOMEM;
goto out;
@@ -1943,7 +1943,7 @@ skip_last_device_calc:
fiemap->fm_mapped_extents = current_extent;

out:
- OBD_FREE_LARGE(fm_local, buffer_size);
+ kvfree(fm_local);
return rc;
}

diff --git a/drivers/staging/lustre/lustre/lov/lov_lock.c b/drivers/staging/lustre/lustre/lov/lov_lock.c
index f2eca56..a6938085 100644
--- a/drivers/staging/lustre/lustre/lov/lov_lock.c
+++ b/drivers/staging/lustre/lustre/lov/lov_lock.c
@@ -314,7 +314,7 @@ static int lov_lock_sub_init(const struct lu_env *env,
nr++;
}
LASSERT(nr > 0);
- OBD_ALLOC_LARGE(lck->lls_sub, nr * sizeof(lck->lls_sub[0]));
+ lck->lls_sub = libcfs_kvzalloc(nr * sizeof(lck->lls_sub[0]), GFP_NOFS);
if (lck->lls_sub == NULL)
return -ENOMEM;

@@ -441,8 +441,7 @@ static void lov_lock_fini(const struct lu_env *env,
* a reference on its parent.
*/
LASSERT(lck->lls_sub[i].sub_lock == NULL);
- OBD_FREE_LARGE(lck->lls_sub,
- lck->lls_nr * sizeof(lck->lls_sub[0]));
+ kvfree(lck->lls_sub);
}
OBD_SLAB_FREE_PTR(lck, lov_lock_kmem);
}
diff --git a/drivers/staging/lustre/lustre/lov/lov_io.c b/drivers/staging/lustre/lustre/lov/lov_io.c
index a043df0..11c1081 100644
--- a/drivers/staging/lustre/lustre/lov/lov_io.c
+++ b/drivers/staging/lustre/lustre/lov/lov_io.c
@@ -286,8 +286,10 @@ static int lov_io_subio_init(const struct lu_env *env, struct lov_io *lio,
* Need to be optimized, we can't afford to allocate a piece of memory
* when writing a page. -jay
*/
- OBD_ALLOC_LARGE(lio->lis_subs,
- lsm->lsm_stripe_count * sizeof(lio->lis_subs[0]));
+ lio->lis_subs =
+ libcfs_kvzalloc(lsm->lsm_stripe_count *
+ sizeof(lio->lis_subs[0]),
+ GFP_NOFS);
if (lio->lis_subs != NULL) {
lio->lis_nr_subios = lio->lis_stripe_count;
lio->lis_single_subio_index = -1;
@@ -360,8 +362,7 @@ static void lov_io_fini(const struct lu_env *env, const struct cl_io_slice *ios)
if (lio->lis_subs != NULL) {
for (i = 0; i < lio->lis_nr_subios; i++)
lov_io_sub_fini(env, lio, &lio->lis_subs[i]);
- OBD_FREE_LARGE(lio->lis_subs,
- lio->lis_nr_subios * sizeof(lio->lis_subs[0]));
+ kvfree(lio->lis_subs);
lio->lis_nr_subios = 0;
}

@@ -604,8 +605,10 @@ static int lov_io_submit(const struct lu_env *env,

LASSERT(lio->lis_subs != NULL);
if (alloc) {
- OBD_ALLOC_LARGE(stripes_qin,
- sizeof(*stripes_qin) * lio->lis_nr_subios);
+ stripes_qin =
+ libcfs_kvzalloc(sizeof(*stripes_qin) *
+ lio->lis_nr_subios,
+ GFP_NOFS);
if (stripes_qin == NULL)
return -ENOMEM;

@@ -658,8 +661,7 @@ static int lov_io_submit(const struct lu_env *env,
}

if (alloc) {
- OBD_FREE_LARGE(stripes_qin,
- sizeof(*stripes_qin) * lio->lis_nr_subios);
+ kvfree(stripes_qin);
} else {
int i;

diff --git a/drivers/staging/lustre/lustre/lov/lov_ea.c b/drivers/staging/lustre/lustre/lov/lov_ea.c
index 2bcfaea..3f51b57 100644
--- a/drivers/staging/lustre/lustre/lov/lov_ea.c
+++ b/drivers/staging/lustre/lustre/lov/lov_ea.c
@@ -95,7 +95,7 @@ struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size)
oinfo_ptrs_size = sizeof(struct lov_oinfo *) * stripe_count;
*size = sizeof(struct lov_stripe_md) + oinfo_ptrs_size;

- OBD_ALLOC_LARGE(lsm, *size);
+ lsm = libcfs_kvzalloc(*size, GFP_NOFS);
if (!lsm)
return NULL;

@@ -111,7 +111,7 @@ struct lov_stripe_md *lsm_alloc_plain(__u16 stripe_count, int *size)
err:
while (--i >= 0)
OBD_SLAB_FREE(lsm->lsm_oinfo[i], lov_oinfo_slab, sizeof(*loi));
- OBD_FREE_LARGE(lsm, *size);
+ kvfree(lsm);
return NULL;
}

@@ -123,8 +123,7 @@ void lsm_free_plain(struct lov_stripe_md *lsm)
for (i = 0; i < stripe_count; i++)
OBD_SLAB_FREE(lsm->lsm_oinfo[i], lov_oinfo_slab,
sizeof(struct lov_oinfo));
- OBD_FREE_LARGE(lsm, sizeof(struct lov_stripe_md) +
- stripe_count * sizeof(struct lov_oinfo *));
+ kvfree(lsm);
}

static void lsm_unpackmd_common(struct lov_stripe_md *lsm,

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