From de554435e8ed18aea9f8a4da876c2b5a67bdc0ee Mon Sep 17 00:00:00 2001 From: Zhao Lei Date: Wed, 9 Sep 2015 21:32:22 +0800 Subject: btrfs-progs: image: don't create unused threads In case of creating an image without compression, we don't need to create unused threads. Signed-off-by: Zhao Lei Signed-off-by: David Sterba --- btrfs-image.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/btrfs-image.c b/btrfs-image.c index 6eddbd5d..551487fb 100644 --- a/btrfs-image.c +++ b/btrfs-image.c @@ -2786,11 +2786,14 @@ int main(int argc, char *argv[]) } } - if ((compress_level > 0 || create == 0) && - num_threads == 0) { - num_threads = sysconf(_SC_NPROCESSORS_ONLN); - if (num_threads <= 0) - num_threads = 1; + if (compress_level > 0 || create == 0) { + if (num_threads == 0) { + num_threads = sysconf(_SC_NPROCESSORS_ONLN); + if (num_threads <= 0) + num_threads = 1; + } + } else { + num_threads = 0; } if (create) { -- cgit v1.2.3