+test_150f() {
+ local size
+ local blocks
+ local want_size_before=20480 # in bytes
+ local want_blocks_before=40 # 512 sized blocks
+ local want_blocks_after=24 # 512 sized blocks
+ local length=$(((want_blocks_before - want_blocks_after) * 512))
+
+ [[ $OST1_VERSION -ge $(version_code 2.14.0) ]] ||
+ skip "need at least 2.14.0 for fallocate punch"
+
+ if [ "$ost1_FSTYPE" = "zfs" ] || [ "$mds1_FSTYPE" = "zfs" ]; then
+ skip "LU-14160: punch mode is not implemented on OSD ZFS"
+ fi
+
+ check_set_fallocate_or_skip
+ stack_trap "rm -f $DIR/$tfile; wait_delete_completed"
+
+ echo "Verify fallocate punch: Range within the file range"
+ yes 'A' | dd of=$DIR/$tfile bs=4096 count=5 ||
+ error "dd failed for bs 4096 and count 5"
+
+ # Call fallocate with punch range which is within the file range
+ fallocate -p --offset 4096 -l $length $DIR/$tfile ||
+ error "fallocate failed: offset 4096 and length $length"
+ # client must see changes immediately after fallocate
+ size=$(stat -c '%s' $DIR/$tfile)
+ blocks=$(stat -c '%b' $DIR/$tfile)
+
+ # Verify punch worked.
+ (( blocks == want_blocks_after )) ||
+ error "punch failed: blocks $blocks != $want_blocks_after"
+
+ (( size == want_size_before )) ||
+ error "punch failed: size $size != $want_size_before"
+
+ # Verify there is hole in file
+ local data_off=$(lseek_test -d 4096 $DIR/$tfile)
+ # precomputed md5sum
+ local expect="4a9a834a2db02452929c0a348273b4aa"
+
+ cksum=($(md5sum $DIR/$tfile))
+ [[ "${cksum[0]}" == "$expect" ]] ||
+ error "unexpected MD5SUM after punch: ${cksum[0]}"
+
+ # Start second sub-case for fallocate punch.
+ echo "Verify fallocate punch: Range overlapping and less than blocksize"
+ yes 'A' | dd of=$DIR/$tfile bs=4096 count=5 ||
+ error "dd failed for bs 4096 and count 5"
+
+ # Punch range less than block size will have no change in block count
+ want_blocks_after=40 # 512 sized blocks
+
+ # Punch overlaps two blocks and less than blocksize
+ fallocate -p --offset 4000 -l 3000 $DIR/$tfile ||
+ error "fallocate failed: offset 4000 length 3000"
+ size=$(stat -c '%s' $DIR/$tfile)
+ blocks=$(stat -c '%b' $DIR/$tfile)
+
+ # Verify punch worked.
+ (( blocks == want_blocks_after )) ||
+ error "punch failed: blocks $blocks != $want_blocks_after"
+
+ (( size == want_size_before )) ||
+ error "punch failed: size $size != $want_size_before"
+
+ # Verify if range is really zero'ed out. We expect Zeros.
+ # precomputed md5sum
+ expect="c57ec5d769c3dbe3426edc3f7d7e11d3"
+ cksum=($(md5sum $DIR/$tfile))
+ [[ "${cksum[0]}" == "$expect" ]] ||
+ error "unexpected MD5SUM after punch: ${cksum[0]}"
+}
+run_test 150f "Verify fallocate punch functionality"
+
+test_150g() {
+ local space
+ local size
+ local blocks
+ local blocks_after
+ local size_after
+ local BS=4096 # Block size in bytes
+
+ [[ $OST1_VERSION -ge $(version_code 2.14.0) ]] ||
+ skip "need at least 2.14.0 for fallocate punch"
+
+ if [ "$ost1_FSTYPE" = "zfs" ] || [ "$mds1_FSTYPE" = "zfs" ]; then
+ skip "LU-14160: punch mode is not implemented on OSD ZFS"
+ fi
+
+ check_set_fallocate_or_skip
+ stack_trap "rm -f $DIR/$tfile; wait_delete_completed"
+
+ $LFS setstripe -c${OSTCOUNT} $DIR/$tfile ||
+ error "$LFS setstripe -c${OSTCOUNT} $DIR/$tfile failed"
+
+ # Get 100MB per OST of the available space to reduce run time
+ # else 60% of the available space if we are running SLOW tests
+ if [ $SLOW == "no" ]; then
+ space=$((1024 * 100 * OSTCOUNT))
+ else
+ # Find OST with Minimum Size
+ space=$($LFS df | awk "/$FSNAME-OST/ { print \$4 }" |
+ sort -un | head -1)
+ echo "min size OST: $space"
+ space=$(((space * 60)/100 * OSTCOUNT))
+ fi
+ # space in 1k units, round to 4k blocks
+ local blkcount=$((space * 1024 / $BS))
+
+ echo "Verify fallocate punch: Very large Range"
+ fallocate -l${space}k $DIR/$tfile ||
+ error "fallocate ${space}k $DIR/$tfile failed"
+ # write 1M at the end, start and in the middle
+ yes 'A' | dd of=$DIR/$tfile bs=$BS count=256 ||
+ error "dd failed: bs $BS count 256"
+ yes 'A' | dd of=$DIR/$tfile bs=$BS seek=$((blkcount - 256)) count=256 ||
+ error "dd failed: bs $BS count 256 seek $((blkcount - 256))"
+ yes 'A' | dd of=$DIR/$tfile bs=$BS seek=$((blkcount / 2)) count=1024 ||
+ error "dd failed: bs $BS count 256 seek $((blkcount / 2))"
+
+ # Gather stats.
+ size=$(stat -c '%s' $DIR/$tfile)
+
+ # gather punch length.
+ local punch_size=$((size - (BS * 2)))
+
+ echo "punch_size = $punch_size"
+ echo "size - punch_size: $((size - punch_size))"
+ echo "size - punch_size in blocks: $(((size - punch_size)/BS))"
+
+ # Call fallocate to punch all except 2 blocks. We leave the
+ # first and the last block
+ echo "fallocate -p --offset $BS -l $punch_size $DIR/$tfile"
+ fallocate -p --offset $BS -l $punch_size $DIR/$tfile ||
+ error "fallocate failed: offset $BS length $punch_size"
+
+ size_after=$(stat -c '%s' $DIR/$tfile)
+ blocks_after=$(stat -c '%b' $DIR/$tfile)
+
+ # Verify punch worked.
+ # Size should be kept
+ (( size == size_after )) ||
+ error "punch failed: size $size != $size_after"
+
+ # two 4k data blocks to remain plus possible 1 extra extent block
+ (( blocks_after <= ((BS / 512) * 3) )) ||
+ error "too many blocks remains: $blocks_after"
+
+ # Verify that file has hole between the first and the last blocks
+ local hole_start=$(lseek_test -l 0 $DIR/$tfile)
+ local hole_end=$(lseek_test -d $BS $DIR/$tfile)
+
+ echo "Hole at [$hole_start, $hole_end)"
+ (( hole_start == BS )) ||
+ error "no hole at offset $BS after punch"
+
+ (( hole_end == BS + punch_size )) ||
+ error "data at offset $hole_end < $((BS + punch_size))"
+}
+run_test 150g "Verify fallocate punch on large range"
+
git://git.whamcloud.com / fs / lustre-release.git / commitdiff