3 files changed, 159 insertions, 0 deletions
diff --git a/tests/basic/fuse/Makefile b/tests/basic/fuse/Makefile
new file mode 100644
index 00000000000..c446d253228
--- /dev/null
+++ b/tests/basic/fuse/Makefile
@@ -0,0 +1,12 @@
+CFLAGS   = -Wall -g
+LDFLAGS  =
+
+BINARIES = seek
+
+%: %.c
+	$(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^
+
+all: $(BINARIES)
+
+clean:
+	-$(RM) $(BINARIES)
diff --git a/tests/basic/fuse/active-io-graph-switch.t b/tests/basic/fuse/active-io-graph-switch.t
new file mode 100644
index 00000000000..6ec3e1fcbfa
--- /dev/null
+++ b/tests/basic/fuse/active-io-graph-switch.t
@@ -0,0 +1,65 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+
+TESTS_EXPECTED_IN_LOOP=12
+
+function perform_io_on_mount {
+    local m="$1"
+    local f="$2"
+    local lockfile="$3"
+    while [ -f "$m/$lockfile" ];
+    do
+        dd if=/dev/zero of=$m/$f bs=1M count=1
+    done
+}
+
+function perform_graph_switch {
+    for i in {1..3}
+    do
+        TEST_IN_LOOP $CLI volume set $V0 performance.stat-prefetch off
+        sleep 3
+        TEST_IN_LOOP $CLI volume set $V0 performance.stat-prefetch on
+        sleep 3
+    done
+}
+
+function count_files {
+    ls $M0 | wc -l
+}
+
+cleanup;
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume create $V0 replica 3 $H0:$B0/${V0}{0,1,2}
+TEST $CLI volume set $V0 flush-behind off
+TEST $CLI volume start $V0
+TEST $GFS --volfile-id=/$V0 --volfile-server=$H0 $M0
+TEST touch $M0/lock
+for i in {1..100}; do perform_io_on_mount $M0 $i lock & done
+EXPECT_WITHIN 5 "101" count_files
+
+perform_graph_switch
+TEST rm -f $M0/lock
+wait
+EXPECT "100" count_files
+TEST rm -f $M0/{1..100}
+EXPECT "0" count_files
+
+EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
+
+#Repeat the tests with reader-thread-count
+TEST $GFS --reader-thread-count=10 --volfile-id=/$V0 --volfile-server=$H0 $M0
+TEST touch $M0/lock
+for i in {1..100}; do perform_io_on_mount $M0 $i lock & done
+EXPECT_WITHIN 5 "101" count_files
+
+perform_graph_switch
+TEST rm -f $M0/lock
+wait
+EXPECT "100" count_files
+TEST rm -f $M0/{1..100}
+EXPECT "0" count_files
+
+cleanup
diff --git a/tests/basic/fuse/seek.c b/tests/basic/fuse/seek.c
new file mode 100644
index 00000000000..30943ad0f33
--- /dev/null
+++ b/tests/basic/fuse/seek.c
@@ -0,0 +1,82 @@
+/* seek.c - use lseek() to find holes in a file
+ *
+ * Author: Niels de Vos <ndevos@redhat.com>
+ */
+
+/* needed for SEEK_HOLE/SEEK_DATA */
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <unistd.h>
+
+int
+main(int argc, char **argv)
+{
+    int ret = EXIT_SUCCESS;
+    int fd = -1;
+    char *filename = NULL;
+    struct stat st = {
+        0,
+    };
+    off_t hole_start = 0;
+    off_t hole_end = 0;
+
+    if (argc != 2) {
+        fprintf(stderr, "Invalid argument, use %s <file>\n", argv[0]);
+        return EXIT_FAILURE;
+    }
+
+    filename = argv[1];
+
+    fd = open(filename, O_RDONLY);
+    if (fd <= 0) {
+        perror("open");
+        return EXIT_FAILURE;
+    }
+
+    if (fstat(fd, &st)) {
+        perror("fstat");
+        return EXIT_FAILURE;
+    }
+
+    while (hole_end < st.st_size) {
+        hole_start = lseek(fd, hole_end, SEEK_HOLE);
+        if (hole_start == -1 && errno == ENXIO) {
+            /* no more holes */
+            break;
+        } else if (hole_start == -1 && errno == ENOTSUP) {
+            /* SEEK_HOLE is not supported */
+            perror("lseek(SEEK_HOLE)");
+            ret = EXIT_FAILURE;
+            break;
+        } else if (hole_start == -1) {
+            perror("no more holes");
+            break;
+        }
+
+        hole_end = lseek(fd, hole_start, SEEK_DATA);
+        if (hole_end == -1 && errno == ENXIO) {
+            /* no more data */
+            break;
+        } else if (hole_end == -1 && errno == ENOTSUP) {
+            /* SEEK_DATA is not supported */
+            perror("lseek(SEEK_DATA)");
+            ret = EXIT_FAILURE;
+            break;
+        }
+
+        printf("HOLE found: %ld - %ld%s\n", hole_start, hole_end,
+               (hole_end == st.st_size) ? " (EOF)" : "");
+    }
+
+    close(fd);
+
+    return ret;
+}