[LU-6891] fix grow_xattr() defect

• Type: Bug
• Resolution: Fixed
• Priority: Minor
• Fix Version/s: Lustre 2.8.0
• Affects Version/s: Lustre 2.7.0

Epic/Theme

patch test

• Severity: 3
• Assignee: WC Triage
• Reporter: Elena Gryaznova

Description

grow_xattr() {
...
   [ -z $(lctl get_param -n mdc.*.connect_flags | grep xattr) ] &&
         skip "must have user_xattr" && return 0
..
}

string needs to be quoted to avoid syntax error on DNE setup:
mdscount=2 :

# lctl get_param  mdc.*.connect_flags | grep xattr
xattr
xattr
# find /proc/fs/lustre/ -name connect_flags | grep mdc
/proc/fs/lustre/mdc/lustre-MDT0001-mdc-ffff88005a998000/connect_flags
/proc/fs/lustre/mdc/lustre-MDT0000-mdc-ffff88005a998000/connect_flags

xtrace:

+ grow_xattr 65536
+ local xsize=65536
+ local file=/mnt/lustre/f102ha.sanity
++ grep xattr
++ lctl get_param -n 'mdc.*.connect_flags'
+ '[' -z xattr xattr ']'
sanity.sh: line 6447: [: xattr: binary operator expected

mdscount=3 :

++ lctl get_param -n 'mdc.*.connect_flags'
+ '[' -z xattr xattr xattr ']'
sanity.sh: line 6447: [: too many arguments