xfs: move xfs_sync_sb_buf() out of libxfs into xfs_ioctl.c

xfs_sync_sb_buf() dereferences mp->m_sb_bp and mp->m_rtsb_bp, which
only exist in the kernel's struct xfs_mount, not in xfsprogs' libxfs.
Keeping it in libxfs is a porting hazard.

Its only caller, xfs_ioc_setlabel(), is kernel-only, so move it there
and make it static.

Fixes: c1351fb48eee ("xfs: don't hold buffer locks across sync transaction commit in xfs_sync_sb_buf")
Suggested-by: Darrick J. Wong <djwong@kernel.org>
Suggested-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Yun Zhou <yun.zhou@windriver.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Carlos Maiolino <cem@kernel.org>

0 files changed, 0 insertions, 0 deletions