From aaf90a2d2d20d00d5c933098257f806311222ff0 Mon Sep 17 00:00:00 2001 From: Eric Sandeen Date: Tue, 23 Jun 2015 11:35:16 +1000 Subject: [PATCH] xfs_copy: fix copy of hard 4k devices If we have a pure 4k device with no 512 emulation, xfs_copy fails straightaway because it tries to do a 512-byte direct IO read of the superblock. Do like we do in xfs_db, and read in the max possible sector size, because we don't yet know what the filesystem's sector size is. This fixes a failure in xfs/032 on a hard 4k device. Signed-off-by: Eric Sandeen Reviewed-by: Brian Foster Reviewed-by: Christoph Hellwig Signed-off-by: Dave Chinner --- copy/xfs_copy.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/copy/xfs_copy.c b/copy/xfs_copy.c index 279527cda..b39c84dc3 100644 --- a/copy/xfs_copy.c +++ b/copy/xfs_copy.c @@ -654,8 +654,9 @@ main(int argc, char **argv) memset(&mbuf, 0, sizeof(xfs_mount_t)); libxfs_buftarg_init(&mbuf, xargs.ddev, xargs.logdev, xargs.rtdev); - sbp = libxfs_readbuf(mbuf.m_ddev_targp, XFS_SB_DADDR, 1, 0, - &xfs_sb_buf_ops); + sbp = libxfs_readbuf(mbuf.m_ddev_targp, XFS_SB_DADDR, + 1 << (XFS_MAX_SECTORSIZE_LOG - BBSHIFT), + 0, &xfs_sb_buf_ops); sb = &mbuf.m_sb; libxfs_sb_from_disk(sb, XFS_BUF_TO_SBP(sbp)); -- 2.39.5