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TOMOYO: Use GFP_NOFS rather than GFP_KERNEL.

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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>
This commit is contained in:
Tetsuo Handa
2010-04-28 14:17:42 +09:00
committed by James Morris
parent a674fa46c7
commit 4e5d6f7ec3
4 changed files with 18 additions and 18 deletions
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10
security/tomoyo/common.c
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@@ -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);