[PATCH v5 11/14] ext4: Support for PUD-sized transparent huge pages

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



From: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>

ext4 needs to reserve enough space in the journal to allocate a PUD-sized
page.

Signed-off-by: Matthew Wilcox <willy@xxxxxxxxxxxxxxx>
---
 fs/ext4/file.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/ext4/file.c b/fs/ext4/file.c
index a2f975e..b966b17 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;
 		}
-- 
2.7.0

--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html



[Index of Archives]     [Linux Ext4 Filesystem]     [Union Filesystem]     [Filesystem Testing]     [Ceph Users]     [Ecryptfs]     [AutoFS]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux Cachefs]     [Reiser Filesystem]     [Linux RAID]     [Samba]     [Device Mapper]     [CEPH Development]
  Powered by Linux