LU-14179 lfs: avoid lfs find error with long paths

[fs/lustre-release.git] / lustre / tests / sanity.sh

diff --git a/lustre/tests/sanity.sh b/lustre/tests/sanity.sh
index 865cac4..33d2696 100755 (executable)
--- a/lustre/tests/sanity.sh
+++ b/lustre/tests/sanity.sh
@@ -7756,6 +7756,38 @@ test_56ca() {
 }
 run_test 56ca "check lfs find --mirror-count|-N and --mirror-state"
 
+test_56da() { # LU-14179
+       local path=$DIR/$tdir
+
+       test_mkdir $path
+       cd $path
+
+       local longdir=$(str_repeat 'a' 255)
+
+       for i in {1..15}; do
+               path=$path/$longdir
+               test_mkdir $longdir
+               cd $longdir
+       done
+
+       local len=${#path}
+       local lastdir=$(str_repeat 'a' $((4096 - 1 - $len - 1)))
+
+       test_mkdir $lastdir
+       cd $lastdir
+       # PATH_MAX-1
+       (( ${#PWD} == 4095 )) || error "bad PWD length ${#PWD}, expect 4095"
+
+       # NAME_MAX
+       touch $(str_repeat 'f' 255)
+
+       $LFS find $DIR/$tdir --type d |& grep "lfs find: error" &&
+               error "lfs find reported an error"
+
+       rm -rf $DIR/$tdir
+}
+run_test 56da "test lfs find with long paths"
+
 test_57a() {
        [ $PARALLEL == "yes" ] && skip "skip parallel run"
        # note test will not do anything if MDS is not local