[PATCH] SELinux: convert to kzalloc
This patch converts SELinux code from kmalloc/memset to the new kazalloc
unction. On i386, this results in a text saving of over 1K.
Before:
text data bss dec hex filename
86319 4642 15236 106197 19ed5 security/selinux/built-in.o
After:
text data bss dec hex filename
85278 4642 15236 105156 19ac4 security/selinux/built-in.o
Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 8e6262d..2f5f539 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -121,12 +121,11 @@
int rc;
struct role_datum *role;
- role = kmalloc(sizeof(*role), GFP_KERNEL);
+ role = kzalloc(sizeof(*role), GFP_KERNEL);
if (!role) {
rc = -ENOMEM;
goto out;
}
- memset(role, 0, sizeof(*role));
role->value = ++p->p_roles.nprim;
if (role->value != OBJECT_R_VAL) {
rc = -EINVAL;
@@ -851,12 +850,11 @@
__le32 buf[2];
u32 len;
- perdatum = kmalloc(sizeof(*perdatum), GFP_KERNEL);
+ perdatum = kzalloc(sizeof(*perdatum), GFP_KERNEL);
if (!perdatum) {
rc = -ENOMEM;
goto out;
}
- memset(perdatum, 0, sizeof(*perdatum));
rc = next_entry(buf, fp, sizeof buf);
if (rc < 0)
@@ -893,12 +891,11 @@
u32 len, nel;
int i, rc;
- comdatum = kmalloc(sizeof(*comdatum), GFP_KERNEL);
+ comdatum = kzalloc(sizeof(*comdatum), GFP_KERNEL);
if (!comdatum) {
rc = -ENOMEM;
goto out;
}
- memset(comdatum, 0, sizeof(*comdatum));
rc = next_entry(buf, fp, sizeof buf);
if (rc < 0)
@@ -950,10 +947,9 @@
lc = NULL;
for (i = 0; i < ncons; i++) {
- c = kmalloc(sizeof(*c), GFP_KERNEL);
+ c = kzalloc(sizeof(*c), GFP_KERNEL);
if (!c)
return -ENOMEM;
- memset(c, 0, sizeof(*c));
if (lc) {
lc->next = c;
@@ -969,10 +965,9 @@
le = NULL;
depth = -1;
for (j = 0; j < nexpr; j++) {
- e = kmalloc(sizeof(*e), GFP_KERNEL);
+ e = kzalloc(sizeof(*e), GFP_KERNEL);
if (!e)
return -ENOMEM;
- memset(e, 0, sizeof(*e));
if (le) {
le->next = e;
@@ -1033,12 +1028,11 @@
u32 len, len2, ncons, nel;
int i, rc;
- cladatum = kmalloc(sizeof(*cladatum), GFP_KERNEL);
+ cladatum = kzalloc(sizeof(*cladatum), GFP_KERNEL);
if (!cladatum) {
rc = -ENOMEM;
goto out;
}
- memset(cladatum, 0, sizeof(*cladatum));
rc = next_entry(buf, fp, sizeof(u32)*6);
if (rc < 0)
@@ -1127,12 +1121,11 @@
__le32 buf[2];
u32 len;
- role = kmalloc(sizeof(*role), GFP_KERNEL);
+ role = kzalloc(sizeof(*role), GFP_KERNEL);
if (!role) {
rc = -ENOMEM;
goto out;
}
- memset(role, 0, sizeof(*role));
rc = next_entry(buf, fp, sizeof buf);
if (rc < 0)
@@ -1188,12 +1181,11 @@
__le32 buf[3];
u32 len;
- typdatum = kmalloc(sizeof(*typdatum),GFP_KERNEL);
+ typdatum = kzalloc(sizeof(*typdatum),GFP_KERNEL);
if (!typdatum) {
rc = -ENOMEM;
return rc;
}
- memset(typdatum, 0, sizeof(*typdatum));
rc = next_entry(buf, fp, sizeof buf);
if (rc < 0)
@@ -1261,12 +1253,11 @@
__le32 buf[2];
u32 len;
- usrdatum = kmalloc(sizeof(*usrdatum), GFP_KERNEL);
+ usrdatum = kzalloc(sizeof(*usrdatum), GFP_KERNEL);
if (!usrdatum) {
rc = -ENOMEM;
goto out;
}
- memset(usrdatum, 0, sizeof(*usrdatum));
rc = next_entry(buf, fp, sizeof buf);
if (rc < 0)
@@ -1316,12 +1307,11 @@
__le32 buf[2];
u32 len;
- levdatum = kmalloc(sizeof(*levdatum), GFP_ATOMIC);
+ levdatum = kzalloc(sizeof(*levdatum), GFP_ATOMIC);
if (!levdatum) {
rc = -ENOMEM;
goto out;
}
- memset(levdatum, 0, sizeof(*levdatum));
rc = next_entry(buf, fp, sizeof buf);
if (rc < 0)
@@ -1368,12 +1358,11 @@
__le32 buf[3];
u32 len;
- catdatum = kmalloc(sizeof(*catdatum), GFP_ATOMIC);
+ catdatum = kzalloc(sizeof(*catdatum), GFP_ATOMIC);
if (!catdatum) {
rc = -ENOMEM;
goto out;
}
- memset(catdatum, 0, sizeof(*catdatum));
rc = next_entry(buf, fp, sizeof buf);
if (rc < 0)
@@ -1567,12 +1556,11 @@
nel = le32_to_cpu(buf[0]);
ltr = NULL;
for (i = 0; i < nel; i++) {
- tr = kmalloc(sizeof(*tr), GFP_KERNEL);
+ tr = kzalloc(sizeof(*tr), GFP_KERNEL);
if (!tr) {
rc = -ENOMEM;
goto bad;
}
- memset(tr, 0, sizeof(*tr));
if (ltr) {
ltr->next = tr;
} else {
@@ -1593,12 +1581,11 @@
nel = le32_to_cpu(buf[0]);
lra = NULL;
for (i = 0; i < nel; i++) {
- ra = kmalloc(sizeof(*ra), GFP_KERNEL);
+ ra = kzalloc(sizeof(*ra), GFP_KERNEL);
if (!ra) {
rc = -ENOMEM;
goto bad;
}
- memset(ra, 0, sizeof(*ra));
if (lra) {
lra->next = ra;
} else {
@@ -1627,12 +1614,11 @@
nel = le32_to_cpu(buf[0]);
l = NULL;
for (j = 0; j < nel; j++) {
- c = kmalloc(sizeof(*c), GFP_KERNEL);
+ c = kzalloc(sizeof(*c), GFP_KERNEL);
if (!c) {
rc = -ENOMEM;
goto bad;
}
- memset(c, 0, sizeof(*c));
if (l) {
l->next = c;
} else {
@@ -1743,12 +1729,11 @@
if (rc < 0)
goto bad;
len = le32_to_cpu(buf[0]);
- newgenfs = kmalloc(sizeof(*newgenfs), GFP_KERNEL);
+ newgenfs = kzalloc(sizeof(*newgenfs), GFP_KERNEL);
if (!newgenfs) {
rc = -ENOMEM;
goto bad;
}
- memset(newgenfs, 0, sizeof(*newgenfs));
newgenfs->fstype = kmalloc(len + 1,GFP_KERNEL);
if (!newgenfs->fstype) {
@@ -1790,12 +1775,11 @@
goto bad;
len = le32_to_cpu(buf[0]);
- newc = kmalloc(sizeof(*newc), GFP_KERNEL);
+ newc = kzalloc(sizeof(*newc), GFP_KERNEL);
if (!newc) {
rc = -ENOMEM;
goto bad;
}
- memset(newc, 0, sizeof(*newc));
newc->u.name = kmalloc(len + 1,GFP_KERNEL);
if (!newc->u.name) {
@@ -1843,12 +1827,11 @@
nel = le32_to_cpu(buf[0]);
lrt = NULL;
for (i = 0; i < nel; i++) {
- rt = kmalloc(sizeof(*rt), GFP_KERNEL);
+ rt = kzalloc(sizeof(*rt), GFP_KERNEL);
if (!rt) {
rc = -ENOMEM;
goto bad;
}
- memset(rt, 0, sizeof(*rt));
if (lrt)
lrt->next = rt;
else