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-rw-r--r--ipc/mqueue.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 6e10a55..f8eba5e 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -24,6 +24,7 @@
#include <linux/mqueue.h>
#include <linux/msg.h>
#include <linux/skbuff.h>
+#include <linux/vmalloc.h>
#include <linux/netlink.h>
#include <linux/syscalls.h>
#include <linux/audit.h>
@@ -152,7 +153,10 @@ static struct inode *mqueue_get_inode(struct super_block *sb,
info->attr.mq_msgsize = attr->mq_msgsize;
}
mq_msg_tblsz = info->attr.mq_maxmsg * sizeof(struct msg_msg *);
- info->messages = kmalloc(mq_msg_tblsz, GFP_KERNEL);
+ if (mq_msg_tblsz > KMALLOC_MAX_SIZE)
+ info->messages = vmalloc(mq_msg_tblsz);
+ else
+ info->messages = kmalloc(mq_msg_tblsz, GFP_KERNEL);
if (!info->messages)
goto out_inode;
@@ -262,7 +266,10 @@ static void mqueue_evict_inode(struct inode *inode)
spin_lock(&info->lock);
for (i = 0; i < info->attr.mq_curmsgs; i++)
free_msg(info->messages[i]);
- kfree(info->messages);
+ if (info->attr.mq_maxmsg * sizeof(struct msg_msg *) > KMALLOC_MAX_SIZE)
+ vfree(info->messages);
+ else
+ kfree(info->messages);
spin_unlock(&info->lock);
/* Total amount of bytes accounted for the mqueue */
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