dmabuf_dump: Remove per-device and attachment stats

Creating a separate sysfs directory for each dmabuf attachment
adds overhead that is quite significant in some fast paths.

Attachment stats are being removed from dmabuf sysfs stats

Remove the per-device and attachment stats from dmabuf_dump

Bug: 193226716
Bug: 193465681
Bug: 192621117
Test: dmabuf_dump -b
Change-Id: If3a67c07e8c013d76fe158f4a0260f1ec4153391

1 files changed, 0 insertions, 25 deletions

diff --git a/libdmabufinfo/tools/dmabuf_dump.cpp b/libdmabufinfo/tools/dmabuf_dump.cpp
index 2466e78..57204f6 100644
--- a/libdmabufinfo/tools/dmabuf_dump.cpp
+++ b/libdmabufinfo/tools/dmabuf_dump.cpp
@@ -228,7 +228,6 @@ static void DumpDmabufSysfsStats() {
 
     auto buffer_stats = stats.buffer_stats();
     auto exporter_stats = stats.exporter_info();
-    auto importer_stats = stats.importer_info();
 
     printf("\n\n----------------------- DMA-BUF per-buffer stats -----------------------\n");
     printf("    Dmabuf Inode |     Size(bytes) |             Exporter Name             |\n");
@@ -236,21 +235,6 @@ static void DumpDmabufSysfsStats() {
         printf("%16u |%16u | %16s \n", buf.inode, buf.size, buf.exp_name.c_str());
     }
 
-    printf("\n\n----------------------- DMA-BUF attachment stats -----------------------\n");
-    printf("    Dmabuf Inode | Attachment(Map Count)\n");
-    for (const auto& buf : buffer_stats) {
-        printf("%16u", buf.inode);
-
-        if (buf.attachments.empty()) {
-            printf("      None\n");
-            continue;
-        }
-
-        for (const auto& attachment : buf.attachments)
-            printf("%20s(%u) ", attachment.device.c_str(), attachment.map_count);
-        printf("\n");
-    }
-
     printf("\n\n----------------------- DMA-BUF exporter stats -----------------------\n");
     printf("      Exporter Name              | Total Count |     Total Size(bytes)   |\n");
     for (const auto& it : exporter_stats) {
@@ -258,15 +242,6 @@ static void DumpDmabufSysfsStats() {
                it.second.size);
     }
 
-    if (!importer_stats.empty()) {
-        printf("\n\n---------------------- DMA-BUF per-device stats ----------------------\n");
-        printf("         Device                  | Total Count |     Total Size(bytes) |\n");
-        for (const auto& it : importer_stats) {
-            printf("%32s | %12u| %" PRIu64 "\n", it.first.c_str(), it.second.buffer_count,
-                   it.second.size);
-        }
-    }
-
     printf("\n\n----------------------- DMA-BUF total stats --------------------------\n");
     printf("Total DMA-BUF count: %u, Total DMA-BUF size(bytes): %" PRIu64 "\n", stats.total_count(),
            stats.total_size());