fix readdir problem in devtmpfs

Signed-off-by: liqiang <liqiang64@huawei.com>

0002-fix-readdir-bug-in-devtmpfs.patch

@@ -0,0 +1,45 @@
+From 645c009ced7f759d0d26c6f0a0b53a084cf82db5 Mon Sep 17 00:00:00 2001
+From: liqiang <liqiang64@huawei.com>
+Date: Wed, 10 Jul 2024 02:37:00 +0000
+Subject: [PATCH] fix readdir bug in devtmpfs if /dev/ have a large number of
+ files, readdir can't get whole informations, because of direct save and use
+ file->f_pos is not correct in devtmpfs
+
+Just use vfs_llseek to instead.
+
+Signed-off-by: liqiang <liqiang64@huawei.com>
+---
+ qtfs/qtfs_server/fsops.c | 12 +++++++++---
+ 1 file changed, 9 insertions(+), 3 deletions(-)
+
+diff --git a/qtfs/qtfs_server/fsops.c b/qtfs/qtfs_server/fsops.c
+index cd7365d..f2f3749 100644
+--- a/qtfs/qtfs_server/fsops.c
++++ b/qtfs/qtfs_server/fsops.c
+@@ -668,14 +668,20 @@ static int handle_readdir(struct qtserver_arg *arg)
+ 		rsp->d.vldcnt = 0;
+ 		return sizeof(struct qtrsp_readdir) - sizeof(rsp->dirent);
+ 	}
+-	file->f_pos = req->pos;
++	if (vfs_llseek(file, req->pos, SEEK_SET) < 0) {
++		qtfs_err("handle readdir error, file path:%s seek set:%lld failed", req->path, req->pos);
++		rsp->d.ret = QTFS_ERR;
++		rsp->d.vldcnt = 0;
++		filp_close(file, NULL);
++		return sizeof(struct qtrsp_readdir) - sizeof(rsp->dirent);
++	}
+ 	ret = iterate_dir(file, &buf.ctx);
+-	rsp->d.pos = file->f_pos;
++	rsp->d.pos = vfs_llseek(file, 0, SEEK_CUR);
+ 	rsp->d.ret = QTFS_OK;
+ 	rsp->d.vldcnt = buf.vldcnt;
+ 	rsp->d.over = (req->pos == rsp->d.pos) ? 1 : 0;
+ 	qtfs_info("handle readdir ret:%d, pos:%lld path:%s, valid count:%d, leftcount:%d validbyte:%lu\n",
+-			ret, req->pos, req->path, buf.vldcnt, buf.count, sizeof(rsp->dirent) - buf.count);
++			ret, req->pos, req->path, buf.vldcnt, buf.count, req->count - buf.count);
+ 	filp_close(file, NULL);
+ 
+ 	return sizeof(struct qtrsp_readdir_len) + req->count;
+-- 
+2.37.1 (Apple Git-137.1)
+

dpu-utilities.spec

@@ -1,7 +1,7 @@
 Name:          dpu-utilities 
 Summary:       openEuler dpu utilities
 Version:       1.10
-Release:       2
+Release:       3
 License:       GPL-2.0
 Source:        https://gitee.com/openeuler/dpu-utilities/repository/archive/v%{version}.tar.gz
 ExclusiveOS:   linux
@@ -14,6 +14,7 @@ Provides:      %{name} = %{version}-%{release}
 BuildRequires: kernel-devel >= 5.10, gcc, make, json-c-devel, glib2-devel
 
 Patch1: 0001-refactor-syscall-wrapper-for-aarch64-reduce-the-memo.patch
+Patch2: 0002-fix-readdir-bug-in-devtmpfs.patch
 
 %description
 This package contains the software utilities on dpu.
@@ -141,6 +142,9 @@ sed -i '/# product cut_conf/a\dpuos      kiwi/minios/cfg_dpuos  yes' /opt/imageT
 sed -i '/<repository_rule>/a\dpuos          1           rpm-dir     euler_base' /opt/imageTailor/repos/RepositoryRule.conf
 
 %changelog
+* Wed Jul 10 2024 liqiang <liqiang64@huawei.com> 1.10-3
+- Fix readdir bug in devtmpfs
+
 * Mon Jun 24 2024 liqiang <liqiang64@huawei.com> 1.10-2
 - Refactor syscall wrapper for aarch64 reduce the memory