For file systems with a block size that equals the page size we never do
partial reads, so we can use the buffer_head-less iomap versions of
readpage and readpages without conflicting with the buffer_head structures
create later in write_begin.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Reviewed-by: Darrick J. Wong <darrick.wong@xxxxxxxxxx>
---
fs/xfs/xfs_aops.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index ca6903726689..dba439ebfe4c 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -1402,6 +1402,8 @@ xfs_vm_readpage(
struct page *page)
{
trace_xfs_vm_readpage(page->mapping->host, 1);
+ if (i_blocksize(page->mapping->host) == PAGE_SIZE)
+ return iomap_readpage(page, &xfs_iomap_ops);
return mpage_readpage(page, xfs_get_blocks);
}
@@ -1413,6 +1415,8 @@ xfs_vm_readpages(
unsigned nr_pages)
{
trace_xfs_vm_readpages(mapping->host, nr_pages);
+ if (i_blocksize(mapping->host) == PAGE_SIZE)
+ return iomap_readpages(mapping, pages, nr_pages, &xfs_iomap_ops);
return mpage_readpages(mapping, pages, nr_pages, xfs_get_blocks);
}
--
2.17.1
--
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