From: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
To: linux-integrity@vger.kernel.org
Cc: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>,
James Bottomley <jejb@linux.ibm.com>,
Peter Huewe <peterhuewe@gmx.de>, Jason Gunthorpe <jgg@ziepe.ca>,
Arnd Bergmann <arnd@arndb.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v3 1/2] tpm: Use GFP_KERNEL for allocating struct tpm_buf
Date: Thu, 3 Oct 2019 21:51:02 +0300 [thread overview]
Message-ID: <20191003185103.26347-2-jarkko.sakkinen@linux.intel.com> (raw)
In-Reply-To: <20191003185103.26347-1-jarkko.sakkinen@linux.intel.com>
Switch from GFP_HIGHUSER to GFP_KERNEL. On 32-bit platforms kmap() space
could be unnecessarily wasted because of using GFP_HIGHUSER by taking a
page of from the highmem.
Suggested-by: James Bottomley <jejb@linux.ibm.com>
Signed-off-by: Jarkko Sakkinen <jarkko.sakkinen@linux.intel.com>
---
drivers/char/tpm/tpm.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index a4f74dd02a35..d20745965350 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -297,7 +297,7 @@ static inline void tpm_buf_reset(struct tpm_buf *buf, u16 tag, u32 ordinal)
static inline int tpm_buf_init(struct tpm_buf *buf, u16 tag, u32 ordinal)
{
- buf->data_page = alloc_page(GFP_HIGHUSER);
+ buf->data_page = alloc_page(GFP_KERNEL);
if (!buf->data_page)
return -ENOMEM;
--
2.20.1
next prev parent reply other threads:[~2019-10-03 18:51 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-03 18:51 [PATCH v3 0/2] tpm: Detach page allocation from tpm_buf Jarkko Sakkinen
2019-10-03 18:51 ` Jarkko Sakkinen [this message]
2019-10-04 0:25 ` [PATCH v3 1/2] tpm: Use GFP_KERNEL for allocating struct tpm_buf James Bottomley
2019-10-06 10:03 ` Jarkko Sakkinen
2019-10-07 19:12 ` James Bottomley
2019-10-07 23:43 ` Jerry Snitselaar
2019-10-08 22:52 ` Jarkko Sakkinen
2019-10-09 21:36 ` Jarkko Sakkinen
2019-10-11 16:03 ` James Bottomley
2019-10-03 18:51 ` [PATCH v3 2/2] tpm: Detach page allocation from tpm_buf Jarkko Sakkinen
2019-10-04 16:37 ` James Bottomley
2019-10-04 17:37 ` Mimi Zohar
2019-10-04 17:41 ` James Bottomley
2019-10-04 18:24 ` Jerry Snitselaar
2019-10-06 23:32 ` Jarkko Sakkinen
2019-10-04 19:01 ` Jarkko Sakkinen
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