Commit 014695c0 authored by Gao Xiang's avatar Gao Xiang Committed by Darrick J. Wong
Browse files

xfs: update lazy sb counters immediately for resizefs 



sb_fdblocks will be updated lazily if lazysbcount is enabled,
therefore when shrinking the filesystem sb_fdblocks could be
larger than sb_dblocks and xfs_validate_sb_write() would fail.

Even for growfs case, it'd be better to update lazy sb counters
immediately to reflect the real sb counters.

Reviewed-by: default avatarDarrick J. Wong <djwong@kernel.org>
Reviewed-by: default avatarBrian Foster <bfoster@redhat.com>
Signed-off-by: default avatarGao Xiang <hsiangkao@redhat.com>
Signed-off-by: default avatarDarrick J. Wong <djwong@kernel.org>
parent f9dd7ba4

fs/xfs/xfs_fsops.c

+9 −0
Original line number Diff line number Diff line
@@ -128,6 +128,15 @@ xfs_growfs_data_private( 
				 nb - mp->m_sb.sb_dblocks);

	if (id.nfree)

		xfs_trans_mod_sb(tp, XFS_TRANS_SB_FDBLOCKS, id.nfree);



	/*

	 * Sync sb counters now to reflect the updated values. This is

	 * particularly important for shrink because the write verifier

	 * will fail if sb_fdblocks is ever larger than sb_dblocks.

	 */

	if (xfs_sb_version_haslazysbcount(&mp->m_sb))

		xfs_log_sb(tp);



	xfs_trans_set_sync(tp);

	error = xfs_trans_commit(tp);

	if (error)