From: Matthew Wilcox <matthew.r.wilcox@intel.com>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Matthew Wilcox <willy@linux.intel.com>,
linux-mm@kvack.org, linux-nvdimm@lists.01.org,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
x86@kernel.org
Subject: [PATCH v3 8/8] ext4: Support for PUD-sized transparent huge pages
Date: Fri, 8 Jan 2016 14:49:52 -0500 [thread overview]
Message-ID: <1452282592-27290-9-git-send-email-matthew.r.wilcox@intel.com> (raw)
In-Reply-To: <1452282592-27290-1-git-send-email-matthew.r.wilcox@intel.com>
From: Matthew Wilcox <willy@linux.intel.com>
ext4 needs to reserve enough space in the journal to allocate a PUD-sized
page.
Signed-off-by: Matthew Wilcox <willy@linux.intel.com>
---
fs/ext4/file.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index 665fc4b..cec5fa7 100644
--- a/fs/ext4/file.c
+++ b/fs/ext4/file.c
@@ -211,6 +211,10 @@ static int ext4_dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
nblocks = ext4_chunk_trans_blocks(inode,
PMD_SIZE / PAGE_SIZE);
break;
+ case FAULT_FLAG_SIZE_PUD:
+ nblocks = ext4_chunk_trans_blocks(inode,
+ PUD_SIZE / PAGE_SIZE);
+ break;
default:
return VM_FAULT_FALLBACK;
}
--
2.6.4
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2016-01-08 19:49 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-08 19:49 [PATCH v3 0/8] Support for transparent PUD pages for DAX files Matthew Wilcox
2016-01-08 19:49 ` [PATCH v3 1/8] mm: Convert an open-coded VM_BUG_ON_VMA Matthew Wilcox
2016-01-08 19:49 ` [PATCH v3 2/8] mm,fs,dax: Change ->pmd_fault to ->huge_fault Matthew Wilcox
2016-01-08 19:49 ` [PATCH v3 3/8] mm: Add support for PUD-sized transparent hugepages Matthew Wilcox
2016-01-08 19:49 ` [PATCH v3 4/8] mincore: Add support for PUDs Matthew Wilcox
2016-01-08 19:49 ` [PATCH v3 5/8] procfs: Add support for PUDs to smaps, clear_refs and pagemap Matthew Wilcox
2016-01-08 19:49 ` [PATCH v3 6/8] x86: Add support for PUD-sized transparent hugepages Matthew Wilcox
2016-01-08 19:49 ` [PATCH v3 7/8] dax: Support for transparent PUD pages Matthew Wilcox
2016-01-08 19:49 ` Matthew Wilcox [this message]
2016-01-15 19:41 ` [PATCH v3 0/8] Support for transparent PUD pages for DAX files Darrick J. Wong
2016-01-22 11:26 ` Dave Chinner
2016-01-21 22:48 ` mingming cao
2016-01-22 14:11 ` Matthew Wilcox
2016-01-27 20:31 ` Andrew Morton
2016-01-27 20:39 ` Andrew Morton
2016-01-27 20:53 ` Wilcox, Matthew R
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1452282592-27290-9-git-send-email-matthew.r.wilcox@intel.com \
--to=matthew.r.wilcox@intel.com \
--cc=akpm@linux-foundation.org \
--cc=linux-fsdevel@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=linux-nvdimm@lists.01.org \
--cc=willy@linux.intel.com \
--cc=x86@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).