Btrfs-progs: remove unsed pthread attribute objects

Threads always use default attributes in all tools, so pthread
attribute objects and their initializations are of no use. Just pass
NULL as attr attribute to pthread_create for default attributes.

Signed-off-by: Rakesh Pandit <rakesh@tuxera.com>
Signed-off-by: David Sterba <dsterba@suse.cz>

diff --git a/cmds-scrub.c b/cmds-scrub.c
index ca11fb5..d3bd148 100644 (file)
--- a/cmds-scrub.c
+++ b/cmds-scrub.c
@@ -1086,7 +1086,6 @@ static int scrub_start(int argc, char **argv, int resume)
        };
        pthread_t *t_devs = NULL;
        pthread_t t_prog;
-       pthread_attr_t t_attr;
        struct scrub_file_record **past_scrubs = NULL;
        struct scrub_file_record *last_scrub = NULL;
        char *datafile = strdup(SCRUB_DATA_FILE);
@@ -1221,14 +1220,6 @@ static int scrub_start(int argc, char **argv, int resume)
                goto out;
        }
 
-       ret = pthread_attr_init(&t_attr);
-       if (ret) {
-               ERR(!do_quiet, "ERROR: pthread_attr_init failed: %s\n",
-                   strerror(ret));
-               err = 1;
-               goto out;
-       }
-
        for (i = 0; i < fi_args.num_devices; ++i) {
                devid = di_args[i].devid;
                ret = pthread_mutex_init(&sp[i].progress_mutex, NULL);
@@ -1376,7 +1367,7 @@ static int scrub_start(int argc, char **argv, int resume)
                devid = di_args[i].devid;
                gettimeofday(&tv, NULL);
                sp[i].stats.t_start = tv.tv_sec;
-               ret = pthread_create(&t_devs[i], &t_attr,
+               ret = pthread_create(&t_devs[i], NULL,
                                        scrub_one_dev, &sp[i]);
                if (ret) {
                        if (do_print)
@@ -1394,7 +1385,7 @@ static int scrub_start(int argc, char **argv, int resume)
        spc.write_mutex = &spc_write_mutex;
        spc.shared_progress = sp;
        spc.fi = &fi_args;
-       ret = pthread_create(&t_prog, &t_attr, scrub_progress_cycle, &spc);
+       ret = pthread_create(&t_prog, NULL, scrub_progress_cycle, &spc);
        if (ret) {
                if (do_print)
                        fprintf(stderr, "ERROR: creating progress thread "

diff --git a/cmds-send.c b/cmds-send.c
index dcb6607..1cd457d 100644 (file)
--- a/cmds-send.c
+++ b/cmds-send.c
@@ -240,7 +240,6 @@ static int do_send(struct btrfs_send *send, u64 parent_root_id,
 {
        int ret;
        pthread_t t_read;
-       pthread_attr_t t_attr;
        struct btrfs_ioctl_send_args io_send;
        void *t_err = NULL;
        int subvol_fd = -1;
@@ -254,8 +253,6 @@ static int do_send(struct btrfs_send *send, u64 parent_root_id,
                goto out;
        }
 
-       ret = pthread_attr_init(&t_attr);
-
        ret = pipe(pipefd);
        if (ret < 0) {
                ret = -errno;
@@ -268,7 +265,7 @@ static int do_send(struct btrfs_send *send, u64 parent_root_id,
        send->send_fd = pipefd[0];
 
        if (!ret)
-               ret = pthread_create(&t_read, &t_attr, dump_thread,
+               ret = pthread_create(&t_read, NULL, dump_thread,
                                        send);
        if (ret) {
                ret = -ret;
@@ -317,8 +314,6 @@ static int do_send(struct btrfs_send *send, u64 parent_root_id,
                goto out;
        }
 
-       pthread_attr_destroy(&t_attr);
-
        ret = 0;
 
 out:

diff --git a/send-test.c b/send-test.c
index 5f7c311..0e804a2 100644 (file)
--- a/send-test.c
+++ b/send-test.c
@@ -371,7 +371,6 @@ int main(int argc, char **argv)
        int ret = 0;
        int subvol_fd;
        pthread_t t_read;
-       pthread_attr_t t_attr;
        void *t_err = NULL;
        struct recv_args r;
 
@@ -401,13 +400,6 @@ int main(int argc, char **argv)
                goto out;
        }
 
-       ret = pthread_attr_init(&t_attr);
-       if (ret < 0) {
-               fprintf(stderr, "ERROR: pthread init failed. %s\n",
-                       strerror(ret));
-               goto out;
-       }
-
        ret = pipe(pipefd);
        if (ret < 0) {
                ret = errno;
@@ -415,7 +407,7 @@ int main(int argc, char **argv)
                goto out;
        }
 
-       ret = pthread_create(&t_read, &t_attr, process_thread, &r);
+       ret = pthread_create(&t_read, NULL, process_thread, &r);
        if (ret < 0) {
                ret = errno;
                fprintf(stderr, "ERROR: pthread create failed. %s\n",
@@ -452,7 +444,6 @@ int main(int argc, char **argv)
                goto out;
        }
 
-       pthread_attr_destroy(&t_attr);
 out:
        return !!ret;
 }