Commit 91ebecc7 authored by David Chinner's avatar David Chinner Committed by Tim Shimmin
Browse files

[XFS] Allow punching holes to free space when at ENOSPC 



Make the free file space transaction able to dip into the reserved blocks
to ensure that we can successfully free blocks when the filesystem is at
ENOSPC.

SGI-PV: 967788
SGI-Modid: xfs-linux-melb:xfs-kern:29167a

Signed-off-by: default avatarDavid Chinner <dgc@sgi.com>
Signed-off-by: default avatarVlad Apostolov <vapo@sgi.com>
Signed-off-by: default avatarTim Shimmin <tes@sgi.com>
parent 4f57dbc6

fs/xfs/xfs_vnodeops.c

+4 −1
Original line number Diff line number Diff line
@@ -4434,9 +4434,12 @@ xfs_free_file_space( 
	while (!error && !done) {



		/*

		 * allocate and setup the transaction

		 * allocate and setup the transaction. Allow this

		 * transaction to dip into the reserve blocks to ensure

		 * the freeing of the space succeeds at ENOSPC.

		 */

		tp = xfs_trans_alloc(mp, XFS_TRANS_DIOSTRAT);

		tp->t_flags |= XFS_TRANS_RESERVE;

		error = xfs_trans_reserve(tp,

					  resblks,

					  XFS_WRITE_LOG_RES(mp),