diff options
author | James Morris <jmorris@namei.org> | 2010-03-31 08:39:27 +1100 |
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committer | James Morris <jmorris@namei.org> | 2010-03-31 08:39:27 +1100 |
commit | d25d6fa1a95f465ff1ec4458ca15e30b2c8dffec (patch) | |
tree | 7362b182dedd825fc762ef7706830837e42943af /drivers/char/hvc_iucv.c | |
parent | 225a9be24d799aa16d543c31fb09f0c9ed1d9caa (diff) | |
parent | 2eaa9cfdf33b8d7fb7aff27792192e0019ae8fc6 (diff) |
Merge branch 'master' into next
Diffstat (limited to 'drivers/char/hvc_iucv.c')
-rw-r--r-- | drivers/char/hvc_iucv.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/char/hvc_iucv.c b/drivers/char/hvc_iucv.c index 21681a81cc3..37b0542a4ee 100644 --- a/drivers/char/hvc_iucv.c +++ b/drivers/char/hvc_iucv.c @@ -139,6 +139,8 @@ struct hvc_iucv_private *hvc_iucv_get_private(uint32_t num) * * This function allocates a new struct iucv_tty_buffer element and, optionally, * allocates an internal data buffer with the specified size @size. + * The internal data buffer is always allocated with GFP_DMA which is + * required for receiving and sending data with IUCV. * Note: The total message size arises from the internal buffer size and the * members of the iucv_tty_msg structure. * The function returns NULL if memory allocation has failed. @@ -154,7 +156,7 @@ static struct iucv_tty_buffer *alloc_tty_buffer(size_t size, gfp_t flags) if (size > 0) { bufp->msg.length = MSG_SIZE(size); - bufp->mbuf = kmalloc(bufp->msg.length, flags); + bufp->mbuf = kmalloc(bufp->msg.length, flags | GFP_DMA); if (!bufp->mbuf) { mempool_free(bufp, hvc_iucv_mempool); return NULL; @@ -237,7 +239,7 @@ static int hvc_iucv_write(struct hvc_iucv_private *priv, if (!rb->mbuf) { /* message not yet received ... */ /* allocate mem to store msg data; if no memory is available * then leave the buffer on the list and re-try later */ - rb->mbuf = kmalloc(rb->msg.length, GFP_ATOMIC); + rb->mbuf = kmalloc(rb->msg.length, GFP_ATOMIC | GFP_DMA); if (!rb->mbuf) return -ENOMEM; |