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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

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WARNING: multiple messages have this Message-ID (diff)
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@ml01.01.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

  parent reply	other threads:[~2016-01-08 19:49 UTC|newest]

Thread overview: 32+ 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 ` 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   ` 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   ` 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   ` Matthew Wilcox
2016-01-08 19:49 ` [PATCH v3 4/8] mincore: Add support for PUDs Matthew Wilcox
2016-01-08 19:49   ` 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   ` 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   ` 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
2016-01-08 19:49 ` Matthew Wilcox [this message]
2016-01-08 19:49   ` [PATCH v3 8/8] ext4: Support for PUD-sized transparent huge pages Matthew Wilcox
2016-01-15 19:41 ` [PATCH v3 0/8] Support for transparent PUD pages for DAX files Darrick J. Wong
2016-01-15 19:41   ` Darrick J. Wong
2016-01-22 11:26   ` Dave Chinner
2016-01-22 11:26     ` Dave Chinner
2016-01-21 22:48 ` mingming cao
2016-01-21 22:48   ` mingming cao
2016-01-22 14:11   ` Matthew Wilcox
2016-01-22 14:11     ` Matthew Wilcox
2016-01-27 20:31 ` Andrew Morton
2016-01-27 20:31   ` Andrew Morton
2016-01-27 20:39   ` Andrew Morton
2016-01-27 20:39     ` Andrew Morton
2016-01-27 20:53     ` Wilcox, Matthew R
2016-01-27 20:53       ` Wilcox, Matthew R

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