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authorTetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>2010-04-28 14:17:42 +0900
committerJames Morris <jmorris@namei.org>2010-05-06 00:50:43 +1000
commit4e5d6f7ec3833c0da9cf34fa5c53c6058c5908b6 (patch)
tree5c0db5bfcdcb1b07594f20054cc6eefe05161c9a /security
parenta674fa46c79ffa37995bd1c8e4daa2b3be5a95ae (diff)
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TOMOYO: Use GFP_NOFS rather than GFP_KERNEL.
In Ubuntu, security_path_*() hooks are exported to Unionfs. Thus, prepare for being called from inside VFS functions because I'm not sure whether it is safe to use GFP_KERNEL or not. Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: James Morris <jmorris@namei.org>
Diffstat (limited to 'security')
-rw-r--r--security/tomoyo/common.c10
-rw-r--r--security/tomoyo/domain.c10
-rw-r--r--security/tomoyo/file.c12
-rw-r--r--security/tomoyo/realpath.c4
4 files changed, 18 insertions, 18 deletions
diff --git a/security/tomoyo/common.c b/security/tomoyo/common.c
index 588f36a9337..b9f64ca5f15 100644
--- a/security/tomoyo/common.c
+++ b/security/tomoyo/common.c
@@ -883,7 +883,7 @@ static struct tomoyo_profile *tomoyo_find_or_assign_new_profile(const unsigned
ptr = tomoyo_profile_ptr[profile];
if (ptr)
goto ok;
- ptr = kmalloc(sizeof(*ptr), GFP_KERNEL);
+ ptr = kmalloc(sizeof(*ptr), GFP_NOFS);
if (!tomoyo_memory_ok(ptr)) {
kfree(ptr);
ptr = NULL;
@@ -1088,7 +1088,7 @@ static int tomoyo_update_manager_entry(const char *manager,
if (!saved_manager)
return -ENOMEM;
if (!is_delete)
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_NOFS);
mutex_lock(&tomoyo_policy_lock);
list_for_each_entry_rcu(ptr, &tomoyo_policy_manager_list, list) {
if (ptr->manager != saved_manager)
@@ -1881,7 +1881,7 @@ static int tomoyo_read_self_domain(struct tomoyo_io_buffer *head)
*/
static int tomoyo_open_control(const u8 type, struct file *file)
{
- struct tomoyo_io_buffer *head = kzalloc(sizeof(*head), GFP_KERNEL);
+ struct tomoyo_io_buffer *head = kzalloc(sizeof(*head), GFP_NOFS);
if (!head)
return -ENOMEM;
@@ -1942,7 +1942,7 @@ static int tomoyo_open_control(const u8 type, struct file *file)
} else {
if (!head->readbuf_size)
head->readbuf_size = 4096 * 2;
- head->read_buf = kzalloc(head->readbuf_size, GFP_KERNEL);
+ head->read_buf = kzalloc(head->readbuf_size, GFP_NOFS);
if (!head->read_buf) {
kfree(head);
return -ENOMEM;
@@ -1956,7 +1956,7 @@ static int tomoyo_open_control(const u8 type, struct file *file)
head->write = NULL;
} else if (head->write) {
head->writebuf_size = 4096 * 2;
- head->write_buf = kzalloc(head->writebuf_size, GFP_KERNEL);
+ head->write_buf = kzalloc(head->writebuf_size, GFP_NOFS);
if (!head->write_buf) {
kfree(head->read_buf);
kfree(head);
diff --git a/security/tomoyo/domain.c b/security/tomoyo/domain.c
index 66caaa1b842..ed514188324 100644
--- a/security/tomoyo/domain.c
+++ b/security/tomoyo/domain.c
@@ -152,7 +152,7 @@ static int tomoyo_update_domain_initializer_entry(const char *domainname,
if (!saved_program)
goto out;
if (!is_delete)
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_NOFS);
mutex_lock(&tomoyo_policy_lock);
list_for_each_entry_rcu(ptr, &tomoyo_domain_initializer_list, list) {
if (ptr->is_not != is_not ||
@@ -372,7 +372,7 @@ static int tomoyo_update_domain_keeper_entry(const char *domainname,
if (!saved_domainname)
goto out;
if (!is_delete)
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_NOFS);
mutex_lock(&tomoyo_policy_lock);
list_for_each_entry_rcu(ptr, &tomoyo_domain_keeper_list, list) {
if (ptr->is_not != is_not ||
@@ -564,7 +564,7 @@ static int tomoyo_update_alias_entry(const char *original_name,
if (!saved_original_name || !saved_aliased_name)
goto out;
if (!is_delete)
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_NOFS);
mutex_lock(&tomoyo_policy_lock);
list_for_each_entry_rcu(ptr, &tomoyo_alias_list, list) {
if (ptr->original_name != saved_original_name ||
@@ -664,7 +664,7 @@ struct tomoyo_domain_info *tomoyo_find_or_assign_new_domain(const char *
saved_domainname = tomoyo_get_name(domainname);
if (!saved_domainname)
return NULL;
- entry = kzalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kzalloc(sizeof(*entry), GFP_NOFS);
mutex_lock(&tomoyo_policy_lock);
list_for_each_entry_rcu(domain, &tomoyo_domain_list, list) {
if (domain->is_deleted ||
@@ -704,7 +704,7 @@ int tomoyo_find_next_domain(struct linux_binprm *bprm)
* This function assumes that the size of buffer returned by
* tomoyo_realpath() = TOMOYO_MAX_PATHNAME_LEN.
*/
- struct tomoyo_page_buffer *tmp = kzalloc(sizeof(*tmp), GFP_KERNEL);
+ struct tomoyo_page_buffer *tmp = kzalloc(sizeof(*tmp), GFP_NOFS);
struct tomoyo_domain_info *old_domain = tomoyo_domain();
struct tomoyo_domain_info *domain = NULL;
const char *old_domain_name = old_domain->domainname->name;
diff --git a/security/tomoyo/file.c b/security/tomoyo/file.c
index 1b24304edb7..cf67e55a0d1 100644
--- a/security/tomoyo/file.c
+++ b/security/tomoyo/file.c
@@ -99,7 +99,7 @@ static struct tomoyo_path_info *tomoyo_get_path(struct path *path)
{
int error;
struct tomoyo_path_info_with_data *buf = kzalloc(sizeof(*buf),
- GFP_KERNEL);
+ GFP_NOFS);
if (!buf)
return NULL;
@@ -174,7 +174,7 @@ static int tomoyo_update_globally_readable_entry(const char *filename,
if (!saved_filename)
return -ENOMEM;
if (!is_delete)
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_NOFS);
mutex_lock(&tomoyo_policy_lock);
list_for_each_entry_rcu(ptr, &tomoyo_globally_readable_list, list) {
if (ptr->filename != saved_filename)
@@ -321,7 +321,7 @@ static int tomoyo_update_file_pattern_entry(const char *pattern,
if (!saved_pattern->is_patterned)
goto out;
if (!is_delete)
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_NOFS);
mutex_lock(&tomoyo_policy_lock);
list_for_each_entry_rcu(ptr, &tomoyo_pattern_list, list) {
if (saved_pattern != ptr->pattern)
@@ -474,7 +474,7 @@ static int tomoyo_update_no_rewrite_entry(const char *pattern,
if (!saved_pattern)
return error;
if (!is_delete)
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_NOFS);
mutex_lock(&tomoyo_policy_lock);
list_for_each_entry_rcu(ptr, &tomoyo_no_rewrite_list, list) {
if (ptr->pattern != saved_pattern)
@@ -820,7 +820,7 @@ static int tomoyo_update_path_acl(const u8 type, const char *filename,
if (!saved_filename)
return -ENOMEM;
if (!is_delete)
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_NOFS);
mutex_lock(&tomoyo_policy_lock);
list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) {
struct tomoyo_path_acl *acl =
@@ -906,7 +906,7 @@ static int tomoyo_update_path2_acl(const u8 type, const char *filename1,
if (!saved_filename1 || !saved_filename2)
goto out;
if (!is_delete)
- entry = kmalloc(sizeof(*entry), GFP_KERNEL);
+ entry = kmalloc(sizeof(*entry), GFP_NOFS);
mutex_lock(&tomoyo_policy_lock);
list_for_each_entry_rcu(ptr, &domain->acl_info_list, list) {
struct tomoyo_path2_acl *acl =
diff --git a/security/tomoyo/realpath.c b/security/tomoyo/realpath.c
index cf7d61f781b..8fe3ee20a18 100644
--- a/security/tomoyo/realpath.c
+++ b/security/tomoyo/realpath.c
@@ -138,7 +138,7 @@ int tomoyo_realpath_from_path2(struct path *path, char *newname,
*/
char *tomoyo_realpath_from_path(struct path *path)
{
- char *buf = kzalloc(sizeof(struct tomoyo_page_buffer), GFP_KERNEL);
+ char *buf = kzalloc(sizeof(struct tomoyo_page_buffer), GFP_NOFS);
BUILD_BUG_ON(sizeof(struct tomoyo_page_buffer)
<= TOMOYO_MAX_PATHNAME_LEN - 1);
@@ -269,7 +269,7 @@ const struct tomoyo_path_info *tomoyo_get_name(const char *name)
atomic_inc(&ptr->users);
goto out;
}
- ptr = kzalloc(sizeof(*ptr) + len, GFP_KERNEL);
+ ptr = kzalloc(sizeof(*ptr) + len, GFP_NOFS);
allocated_len = ptr ? ksize(ptr) : 0;
if (!ptr || (tomoyo_quota_for_policy &&
atomic_read(&tomoyo_policy_memory_size) + allocated_len