[Filestore] failing local filestore possix complience tests

[budevg]

running https://github.com/zfsonlinux/fstest on local filestore produces many failures

Failed cases:

unlink

mkfifo fails

ENOENT returned instead of ENAMETOOLONG

User owns the file to be removed, but doesn't own the sticky directory.

User owns the sticky directory, but doesn't own the file to be removed.

User owns the symlink to be removed, but doesn't own the sticky directory.

User owns the sticky directory, but doesn't own the symlink to be removed.

truncate

ENOENT returned instead of ENAMETOOLONG

rmdir

mkfifo

ENOENT returned instead of ENAMETOOLONG

User owns the directory to be removed, but doesn't own the sticky directory.

User owns the sticky directory, but doesn't own the directory to be removed.

rename

mkfifo

ENOENT returned instead of ENAMETOOLONG

User owns the file to be renamed, but doesn't own the sticky directory.

User owns the sticky directory, but doesn't own the file to be renamed.

open

expect 0 -u 65535 -g 65535 open ${n0} O_CREAT,O_WRONLY 0644 fails

expect 0620 stat ${name255} mode fails

expect 0642 stat ${path1023} mode fails

mkfifo

mkfifo

mkfifo

mkdir

expect 0 -u 65535 -g 65535 mkdir ${n0} 0755

mkfifo

link

mkfifo

ENOENT returned instead of ENAMETOOLONG

chown

mkfifo

ENOENT returned instead of ENAMETOOLONG

chmod

mkfifo

ENOENT returned instead of ENAMETOOLONG

[budevg]

sticky bit behavior seems to be incorrectly implemented on underlying lustre fs but if we use ext4 as backend the benchmark tests for sticky bits pass

[budevg]

we don’t support mkfifo in filestore as well