xfs: move getdents code into it's own file

The directory readdir code is not used by userspace, but it is
intermingled with files that are shared with userspace. This makes
it difficult to compare the differences between the userspac eand
kernel files are the userspace files don't have the getdents code in
them. Move all the kernel getdents code to a separate file to bring
the shared content between userspace and kernel files closer
together.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Reviewed-by: Mark Tinguely <tinguely@sgi.com>
Signed-off-by: Ben Myers <bpm@sgi.com>

1 files changed, 0 insertions, 94 deletions

diff --git a/fs/xfs/xfs_dir2_sf.c b/fs/xfs/xfs_dir2_sf.c
index 97676a347da1..f24ce9044e72 100644
--- a/fs/xfs/xfs_dir2_sf.c
+++ b/fs/xfs/xfs_dir2_sf.c
@@ -765,100 +765,6 @@ xfs_dir2_sf_create(
 	return 0;
 }
 
-int						/* error */
-xfs_dir2_sf_getdents(
-	xfs_inode_t		*dp,		/* incore directory inode */
-	struct dir_context	*ctx)
-{
-	int			i;		/* shortform entry number */
-	xfs_mount_t		*mp;		/* filesystem mount point */
-	xfs_dir2_dataptr_t	off;		/* current entry's offset */
-	xfs_dir2_sf_entry_t	*sfep;		/* shortform directory entry */
-	xfs_dir2_sf_hdr_t	*sfp;		/* shortform structure */
-	xfs_dir2_dataptr_t	dot_offset;
-	xfs_dir2_dataptr_t	dotdot_offset;
-	xfs_ino_t		ino;
-
-	mp = dp->i_mount;
-
-	ASSERT(dp->i_df.if_flags & XFS_IFINLINE);
-	/*
-	 * Give up if the directory is way too short.
-	 */
-	if (dp->i_d.di_size < offsetof(xfs_dir2_sf_hdr_t, parent)) {
-		ASSERT(XFS_FORCED_SHUTDOWN(mp));
-		return XFS_ERROR(EIO);
-	}
-
-	ASSERT(dp->i_df.if_bytes == dp->i_d.di_size);
-	ASSERT(dp->i_df.if_u1.if_data != NULL);
-
-	sfp = (xfs_dir2_sf_hdr_t *)dp->i_df.if_u1.if_data;
-
-	ASSERT(dp->i_d.di_size >= xfs_dir2_sf_hdr_size(sfp->i8count));
-
-	/*
-	 * If the block number in the offset is out of range, we're done.
-	 */
-	if (xfs_dir2_dataptr_to_db(mp, ctx->pos) > mp->m_dirdatablk)
-		return 0;
-
-	/*
-	 * Precalculate offsets for . and .. as we will always need them.
-	 *
-	 * XXX(hch): the second argument is sometimes 0 and sometimes
-	 * mp->m_dirdatablk.
-	 */
-	dot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
-					     XFS_DIR3_DATA_DOT_OFFSET(mp));
-	dotdot_offset = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
-						XFS_DIR3_DATA_DOTDOT_OFFSET(mp));
-
-	/*
-	 * Put . entry unless we're starting past it.
-	 */
-	if (ctx->pos <= dot_offset) {
-		ctx->pos = dot_offset & 0x7fffffff;
-		if (!dir_emit(ctx, ".", 1, dp->i_ino, DT_DIR))
-			return 0;
-	}
-
-	/*
-	 * Put .. entry unless we're starting past it.
-	 */
-	if (ctx->pos <= dotdot_offset) {
-		ino = xfs_dir2_sf_get_parent_ino(sfp);
-		ctx->pos = dotdot_offset & 0x7fffffff;
-		if (!dir_emit(ctx, "..", 2, ino, DT_DIR))
-			return 0;
-	}
-
-	/*
-	 * Loop while there are more entries and put'ing works.
-	 */
-	sfep = xfs_dir2_sf_firstentry(sfp);
-	for (i = 0; i < sfp->count; i++) {
-		off = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk,
-				xfs_dir2_sf_get_offset(sfep));
-
-		if (ctx->pos > off) {
-			sfep = xfs_dir2_sf_nextentry(sfp, sfep);
-			continue;
-		}
-
-		ino = xfs_dir2_sfe_get_ino(sfp, sfep);
-		ctx->pos = off & 0x7fffffff;
-		if (!dir_emit(ctx, (char *)sfep->name, sfep->namelen,
-			    ino, DT_UNKNOWN))
-			return 0;
-		sfep = xfs_dir2_sf_nextentry(sfp, sfep);
-	}
-
-	ctx->pos = xfs_dir2_db_off_to_dataptr(mp, mp->m_dirdatablk + 1, 0) &
-			0x7fffffff;
-	return 0;
-}
-
 /*
  * Lookup an entry in a shortform directory.
  * Returns EEXIST if found, ENOENT if not found.