Update NEWS

[strace] / file_ioctl.c

diff --git a/file_ioctl.c b/file_ioctl.c
index b065db917557149dd0b7cb3270f78424184aea0f..de8101937b3058745a8dcfb35d80fb9eaf06e9c2 100644 (file)
--- a/file_ioctl.c
+++ b/file_ioctl.c
@@ -80,6 +80,15 @@ print_file_dedupe_range_info(struct tcb *tcp, void *elem_buf,
                             size_t elem_size, void *data)
 {
        const struct file_dedupe_range_info *info = elem_buf;
+       unsigned int *count = data;
+
+       if (count) {
+               if (*count == 0) {
+                       tprints("...");
+                       return false;
+               }
+               --*count;
+       }
 
        if (entering(tcp)) {
                tprints("{dest_fd=");
@@ -141,6 +150,10 @@ file_ioctl(struct tcb *tcp, const unsigned int code, const long arg)
 
        case FIDEDUPERANGE: { /* RW */
                struct file_dedupe_range args;
+               struct file_dedupe_range_info info;
+               unsigned int *limit = NULL;
+               unsigned int count = 2;
+               bool rc;
 
                if (entering(tcp))
                        tprints(", ");
@@ -162,19 +175,16 @@ file_ioctl(struct tcb *tcp, const unsigned int code, const long arg)
                                (uint16_t) args.dest_count);
                }
 
-               bool rc = false;
                tprints("info=");
-               if (abbrev(tcp)) {
-                       tprints("...");
-               } else {
-                       struct file_dedupe_range_info info;
-                       rc = print_array(tcp,
-                                        arg + offsetof(typeof(args), info),
-                                        args.dest_count,
-                                        &info, sizeof(info),
-                                        umoven_or_printaddr,
-                                        print_file_dedupe_range_info, 0);
-               }
+
+               /* Limit how many elements we print in abbrev mode. */
+               if (abbrev(tcp) && args.dest_count > count)
+                       limit = &count;
+
+               rc = print_array(tcp, arg + offsetof(typeof(args), info),
+                                args.dest_count, &info, sizeof(info),
+                                umoven_or_printaddr,
+                                print_file_dedupe_range_info, limit);
 
                tprints("}");
                if (!rc || exiting(tcp))