| #! /bin/bash |
| # SPDX-License-Identifier: GPL-2.0 |
| # Copyright (c) 2017, Oracle and/or its affiliates. All Rights Reserved. |
| # |
| # FS QA Test No. 434 |
| # |
| # Ensure that we don't leak quota inodes when CoW recovery fails. |
| # |
| # Use xfs_fsr to inject bmap redo items in the log for a linked file and |
| # an unlinked file; enable quota so that we always mount with the quota |
| # inodes; and then corrupt the refcount btree to ensure that the CoW |
| # garbage collection (and therefore the mount) fail. |
| # |
| # On a subsequent mount attempt, we should be able to replay the bmap |
| # items for the linked and unlinked files without prematurely truncating |
| # the unlinked inode and without leaking the linked inode, and we should |
| # be able to release the quota inodes when we're aborting the mount. We |
| # also should not leak dquots. |
| # |
| seq=`basename "$0"` |
| seqres="$RESULT_DIR/$seq" |
| echo "QA output created by $seq" |
| |
| here=`pwd` |
| tmp=/tmp/$$ |
| status=1 # failure is the default! |
| trap "_cleanup; exit \$status" 0 1 2 3 15 |
| |
| _cleanup() |
| { |
| cd / |
| rm -rf "$tmp".* |
| } |
| |
| # get standard environment, filters and checks |
| . ./common/rc |
| . ./common/filter |
| . ./common/attr |
| . ./common/reflink |
| . ./common/inject |
| . ./common/quota |
| . ./common/module |
| |
| # real QA test starts here |
| _supported_fs xfs |
| _require_loadable_fs_module "xfs" |
| _require_quota |
| _require_scratch_reflink |
| _require_cp_reflink |
| _require_command "$XFS_FSR_PROG" "xfs_fsr" |
| _require_xfs_io_error_injection "bmap_finish_one" |
| _require_xfs_scratch_rmapbt |
| |
| rm -f "$seqres.full" |
| |
| echo "Format and mount" |
| _scratch_mkfs > "$seqres.full" 2>&1 |
| _scratch_mount -o noquota >> "$seqres.full" 2>&1 |
| |
| testdir="$SCRATCH_MNT/test-$seq" |
| blksz=65536 |
| blks=3 |
| mkdir "$testdir" |
| |
| echo "Create a many-block file" |
| _pwrite_byte 0x62 0 $((blksz * blks)) $testdir/file1 >> $seqres.full |
| _pwrite_byte 0x63 0 $blksz $testdir/file2 >> $seqres.full |
| _reflink_range $testdir/file2 0 $testdir/file1 $blksz $blksz >> $seqres.full |
| _scratch_cycle_mount noquota |
| |
| echo "Inject error" |
| _scratch_inject_error "bmap_finish_one" |
| |
| echo "Defrag the file" |
| $XFS_FSR_PROG -v -d $testdir/file1 >> $seqres.full 2>&1 |
| |
| echo "FS should be shut down, touch will fail" |
| touch $SCRATCH_MNT/badfs 2>&1 | _filter_scratch |
| |
| echo "Remount to replay log" | tee /dev/ttyprintk |
| _scratch_unmount |
| _scratch_dump_log >> $seqres.full |
| _scratch_xfs_db -x -c 'agf 0' -c 'addr refcntroot' -c 'fuzz -d recs[1].startblock ones' >> $seqres.full |
| _scratch_xfs_db -x -c 'agf 0' -c 'addr refcntroot' -c p >> $seqres.full |
| |
| # Suddenly enable quota to test if we can leak the quotacheck dquots! |
| _try_scratch_mount -o quota >> $seqres.full 2>&1 |
| _scratch_unmount 2> /dev/null |
| rm -f ${RESULT_DIR}/require_scratch |
| |
| echo "See if we leak" |
| _reload_fs_module "xfs" |
| |
| # success, all done |
| status=0 |
| exit |