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Message-Id: <1435608152-6982-5-git-send-email-matthew.r.wilcox@intel.com> Date: Mon, 29 Jun 2015 16:02:31 -0400 From: Matthew Wilcox <matthew.r.wilcox@...el.com> To: linux-fsdevel@...r.kernel.org, Alexander Viro <viro@...iv.linux.org.uk> Cc: Matthew Wilcox <willy@...ux.intel.com>, "Theodore Ts'o" <tytso@....edu>, Andreas Dilger <adilger.kernel@...ger.ca>, linux-ext4@...r.kernel.org Subject: [PATCH 4/5] ext4: Use ext4_get_block_write() for DAX From: Matthew Wilcox <willy@...ux.intel.com> DAX relies on the get_block function either zeroing newly allocated blocks before they're findable by subsequent calls to get_block, or marking newly allocated blocks as unwritten. ext4_get_block() cannot create unwritten extents, but ext4_get_block_write() can. Reported-by: Andy Rudoff <andy.rudoff@...el.com> Signed-off-by: Matthew Wilcox <willy@...ux.intel.com> --- fs/ext4/file.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/fs/ext4/file.c b/fs/ext4/file.c index ac517f1..f66f3da 100644 --- a/fs/ext4/file.c +++ b/fs/ext4/file.c @@ -194,13 +194,12 @@ out: #ifdef CONFIG_FS_DAX static int ext4_dax_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { - return dax_fault(vma, vmf, ext4_get_block); - /* Is this the right get_block? */ + return dax_fault(vma, vmf, ext4_get_block_write); } static int ext4_dax_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf) { - return dax_mkwrite(vma, vmf, ext4_get_block); + return dax_mkwrite(vma, vmf, ext4_get_block_write); } static const struct vm_operations_struct ext4_dax_vm_ops = { -- 2.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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