[GFS2] Fix bmap to map extents properly

This fix means that bmap will map extents of the length requested
by the VFS rather than guessing at it, or just mapping one block
at a time. The other callers of gfs2_block_map are audited to ensure
they send the correct max extent lengths (i.e. set bh->b_size correctly).

Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>

1 files changed, 3 insertions, 3 deletions

diff --git a/fs/gfs2/ops_address.c b/fs/gfs2/ops_address.c
index e0599fed99ce..8d5963c7e123 100644
--- a/fs/gfs2/ops_address.c
+++ b/fs/gfs2/ops_address.c
@@ -65,7 +65,7 @@ static void gfs2_page_add_databufs(struct gfs2_inode *ip, struct page *page,
 int gfs2_get_block(struct inode *inode, sector_t lblock,
                    struct buffer_head *bh_result, int create)
 {
-        return gfs2_block_map(inode, lblock, create, bh_result, 32);
+        return gfs2_block_map(inode, lblock, create, bh_result);
 }
 
 /**
@@ -83,7 +83,7 @@ static int gfs2_get_block_noalloc(struct inode *inode, sector_t lblock,
 {
         int error;
 
-        error = gfs2_block_map(inode, lblock, 0, bh_result, 1);
+        error = gfs2_block_map(inode, lblock, 0, bh_result);
         if (error)
                 return error;
         if (bh_result->b_blocknr == 0)
@@ -94,7 +94,7 @@ static int gfs2_get_block_noalloc(struct inode *inode, sector_t lblock,
 static int gfs2_get_block_direct(struct inode *inode, sector_t lblock,
                                  struct buffer_head *bh_result, int create)
 {
-        return gfs2_block_map(inode, lblock, 0, bh_result, 32);
+        return gfs2_block_map(inode, lblock, 0, bh_result);
 }
 
 /**