+check_migrate_links() {
+ local dir="$1"
+ local file1="$dir/file1"
+ local begin="$2"
+ local count="$3"
+ local total_count=$(($begin + $count - 1))
+ local symlink_count=10
+ local uniq_count=10
+
+ if [ ! -f "$file1" ]; then
+ echo -n "creating initial file..."
+ $LFS setstripe -c 1 -S "512k" "$file1" ||
+ error "cannot setstripe initial file"
+ echo "done"
+
+ echo -n "creating symlinks..."
+ for s in $(seq 1 $symlink_count); do
+ ln -s "$file1" "$dir/slink$s" ||
+ error "cannot create symlinks"
+ done
+ echo "done"
+
+ echo -n "creating nonlinked files..."
+ createmany -o "$dir/uniq" 1 10 &> /dev/null ||
+ error "cannot create nonlinked files"
+ echo "done"
+ fi
+
+ # create hard links
+ if [ ! -f "$dir/file$total_count" ]; then
+ echo -n "creating hard links $begin:$total_count..."
+ createmany -l"$file1" "$dir/file" "$begin" "$count" &> \
+ /dev/null || error "cannot create hard links"
+ echo "done"
+ fi
+
+ echo -n "checking number of hard links listed in xattrs..."
+ local fid=$($LFS getstripe -F "$file1")
+ local paths=($($LFS fid2path "$MOUNT" "$fid" 2> /dev/null))
+
+ echo "${#paths[*]}"
+ if [ ${#paths[*]} -lt $total_count -a "$begin" -eq 2 ]; then
+ echo "hard link list has unexpected size, skipping test"
+ return 0
+ fi
+ if [ ${#paths[*]} -ge $total_count -a "$begin" -ne 2 ]; then
+ error "link names should exceed xattrs size"
+ fi
+
+ echo -n "migrating files..."
+ local migrate_out=$($LFS_MIGRATE -y -S '1m' $dir)
+ local rc=$?
+ [ $rc -eq 0 ] || error "migrate failed rc = $rc"
+ echo "done"
+
+ # make sure all links have been properly migrated
+ echo -n "verifying files..."
+ fid=$($LFS getstripe -F "$file1") ||
+ error "cannot get fid for file $file1"
+ for i in $(seq 2 $total_count); do
+ local fid2=$($LFS getstripe -F $dir/file$i)
+ [ "$fid2" == "$fid" ] ||
+ error "migrated hard link has mismatched FID"
+ done
+
+ # make sure hard links were properly detected, and migration was
+ # performed only once for the entire link set; nonlinked files should
+ # also be migrated
+ local actual=$(grep -c 'done migrate' <<< "$migrate_out")
+ local expected=$(($uniq_count + 1))
+ [ "$actual" -eq "$expected" ] ||
+ error "hard links individually migrated ($actual != $expected)"
+
+ # make sure the correct number of hard links are present
+ local hardlinks=$(stat -c '%h' "$file1")
+ [ $hardlinks -eq $total_count ] ||
+ error "num hard links $hardlinks != $total_count"
+ echo "done"
+
+ return 0
+}
+
+test_56xb() {
+ local dir0="$DIR/$tdir"
+
+ test_mkdir "$dir0" || error "cannot create dir $dir0"
+
+ echo "testing lfs migrate mode when all links fit within xattrs"
+ LFS_MIGRATE_RSYNC=false check_migrate_links "$dir0" 2 99
+
+ echo "testing rsync mode when all links fit within xattrs"
+ LFS_MIGRATE_RSYNC=true check_migrate_links "$dir0" 2 99
+
+ echo "testing lfs migrate mode when all links do not fit within xattrs"
+ LFS_MIGRATE_RSYNC=false check_migrate_links "$dir0" 101 100
+
+ echo "testing rsync mode when all links do not fit within xattrs"
+ LFS_MIGRATE_RSYNC=true check_migrate_links "$dir0" 101 100
+
+ # clean up
+ rm -rf $dir0
+}
+run_test 56xb "lfs migration hard link support"
+
git://git.whamcloud.com / fs / lustre-release.git / commitdiff