Simplify the way we check for a valid imap - we know we have a valid
mapping after xfs_map_blocks returned successfully, and we know we can
call xfs_imap_valid on any imap, as it will always fail on a
zero-initialized map.

Signed-off-by: Christoph Hellwig <[email protected]>
---
 fs/xfs/xfs_aops.c | 11 ++---------
 1 file changed, 2 insertions(+), 9 deletions(-)

diff --git a/fs/xfs/xfs_aops.c b/fs/xfs/xfs_aops.c
index 82fd08c29f7f..f01c1dd737ec 100644
--- a/fs/xfs/xfs_aops.c
+++ b/fs/xfs/xfs_aops.c
@@ -42,7 +42,6 @@
  */
 struct xfs_writepage_ctx {
        struct xfs_bmbt_irec    imap;
-       bool                    imap_valid;
        unsigned int            io_type;
        struct xfs_ioend        *ioend;
        sector_t                last_block;
@@ -868,10 +867,6 @@ xfs_writepage_map(
                        continue;
                }
 
-               /* Check to see if current map spans this file offset */
-               if (wpc->imap_valid)
-                       wpc->imap_valid = xfs_imap_valid(inode, &wpc->imap,
-                                                        file_offset);
                /*
                 * If we don't have a valid map, now it's time to get a new one
                 * for this offset.  This will convert delayed allocations
@@ -879,16 +874,14 @@ xfs_writepage_map(
                 * a valid map, it means we landed in a hole and we skip the
                 * block.
                 */
-               if (!wpc->imap_valid) {
+               if (!xfs_imap_valid(inode, &wpc->imap, file_offset)) {
                        error = xfs_map_blocks(inode, file_offset, &wpc->imap,
                                             &wpc->io_type);
                        if (error)
                                goto out;
-                       wpc->imap_valid = xfs_imap_valid(inode, &wpc->imap,
-                                                        file_offset);
                }
 
-               if (!wpc->imap_valid || wpc->io_type == XFS_IO_HOLE) {
+               if (wpc->io_type == XFS_IO_HOLE) {
                        /*
                         * set_page_dirty dirties all buffers in a page, 
independent
                         * of their state.  The dirty state however is entirely
-- 
2.17.0

Reply via email to