[XFS] Do not do delalloc conversion on pages beyond EOF ever, not just sometimes

SGI Modid: xfs-linux:xfs-kern:22376a

Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Christoph Hellwig <hch@sgi.com>

diff --git a/fs/xfs/linux-2.6/xfs_aops.c b/fs/xfs/linux-2.6/xfs_aops.c
index 1e71a96..1edd3b6 100644 (file)
--- a/fs/xfs/linux-2.6/xfs_aops.c
+++ b/fs/xfs/linux-2.6/xfs_aops.c
@@ -726,7 +726,7 @@ xfs_page_state_convert(
        pgoff_t                 end_index, last_index, tlast;
        int                     len, err, i, cnt = 0, uptodate = 1;
        int                     flags;
-       int                     page_dirty, delalloc = 0;
+       int                     page_dirty;
 
        /* wait for other IO threads? */
        flags = (startio && wbc->sync_mode != WB_SYNC_NONE) ? 0 : BMAPI_TRYLOCK;
@@ -807,7 +807,6 @@ xfs_page_state_convert(
                 */
                } else if (buffer_delay(bh)) {
                        if (!iomp) {
-                               delalloc = 1;
                                err = xfs_map_blocks(inode, offset, len, &iomap,
                                                BMAPI_ALLOCATE | flags);
                                if (err) {
@@ -882,10 +881,9 @@ xfs_page_state_convert(
                xfs_submit_page(page, wbc, bh_arr, cnt, 0, 1);
 
        if (iomp) {
-               tlast = (iomp->iomap_offset + iomp->iomap_bsize - 1) >>
+               offset = (iomp->iomap_offset + iomp->iomap_bsize - 1) >>
                                        PAGE_CACHE_SHIFT;
-               if (delalloc && (tlast > last_index))
-                       tlast = last_index;
+               tlast = min_t(pgoff_t, offset, last_index);
                xfs_cluster_write(inode, page->index + 1, iomp, wbc,
                                        startio, unmapped, tlast);
        }