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do <> done Instead, using pgrep is more efficient. while pgrep -f "btrfs balance start" > /dev/null; do <> done Signed-off-by: Anand Jain Reviewed-by: Qu Wenruo --- common/btrfs | 10 +++++----- tests/btrfs/132 | 2 +- 2 files changed, 6 insertions(+), 6 deletions(-) diff --git a/common/btrfs b/common/btrfs index 2c086227d8e0..a320b0e41d0d 100644 --- a/common/btrfs +++ b/common/btrfs @@ -327,7 +327,7 @@ _btrfs_kill_stress_balance_pid() kill $balance_pid &> /dev/null wait $balance_pid &> /dev/null # Wait for the balance operation to finish. - while ps aux | grep "balance start" | grep -qv grep; do + while pgrep -f "btrfs balance start" > /dev/null; do sleep 1 done } @@ -381,7 +381,7 @@ _btrfs_kill_stress_scrub_pid() kill $scrub_pid &> /dev/null wait $scrub_pid &> /dev/null # Wait for the scrub operation to finish. - while ps aux | grep "scrub start" | grep -qv grep; do + while pgrep -f "btrfs scrub start" > /dev/null; do sleep 1 done } @@ -415,7 +415,7 @@ _btrfs_kill_stress_defrag_pid() kill $defrag_pid &> /dev/null wait $defrag_pid &> /dev/null # Wait for the defrag operation to finish. - while ps aux | grep "btrfs filesystem defrag" | grep -qv grep; do + while pgrep -f "btrfs filesystem defrag" > /dev/null; do sleep 1 done } @@ -444,7 +444,7 @@ _btrfs_kill_stress_remount_compress_pid() kill $remount_pid &> /dev/null wait $remount_pid &> /dev/null # Wait for the remount loop to finish. - while ps aux | grep "mount.*${btrfs_mnt}" | grep -qv grep; do + while pgrep -f "mount.*${btrfs_mnt}" > /dev/null; do sleep 1 done } @@ -507,7 +507,7 @@ _btrfs_kill_stress_replace_pid() kill $replace_pid &> /dev/null wait $replace_pid &> /dev/null # Wait for the replace operation to finish. - while ps aux | grep "replace start" | grep -qv grep; do + while pgrep -f "btrfs replace start" > /dev/null; do sleep 1 done } diff --git a/tests/btrfs/132 b/tests/btrfs/132 index f50420f51181..b48395c1884f 100755 --- a/tests/btrfs/132 +++ b/tests/btrfs/132 @@ -70,7 +70,7 @@ kill $pids wait # Wait all writers really exits -while ps aux | grep "$SCRATCH_MNT" | grep -qv grep; do +while pgrep -f "$SCRATCH_MNT" > /dev/null; do sleep 1 done