[PATCH 5/7] fsstress: allow afsync on directories too

[fdmanana]

From: Filipe Manana <fdman...@suse.com>

Currently the afsync function can only be performed against regular files.
Allow it to operate on directories too, to increase test coverage and allow
for chances of finding bugs in the filesystem implementation of fsync
against directories.

Signed-off-by: Filipe Manana <fdman...@suse.com>
---
 ltp/fsstress.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/ltp/fsstress.c b/ltp/fsstress.c
index ffe78ef7..0fb9e399 100644
--- a/ltp/fsstress.c
+++ b/ltp/fsstress.c
@@ -1767,15 +1767,21 @@ afsync_f(int opno, long r)
        struct iocb     iocb;
        struct iocb     *iocbs[] = { &iocb };
        struct io_event event;
+       DIR             *dir = NULL;
 
        init_pathname(&f);
-       if (!get_fname(FT_REGFILE, r, &f, NULL, NULL, &v)) {
+       if (!get_fname(FT_REGFILE | FT_DIRm, r, &f, NULL, NULL, &v)) {
                if (v)
                        printf("%d/%d: afsync - no filename\n", procid, opno);
                free_pathname(&f);
                return;
        }
        fd = open_path(&f, O_WRONLY | O_DIRECT);
+       if (fd < 0 && errno == EISDIR) {
+               dir = opendir_path(&f);
+               if (dir)
+                       fd = dirfd(dir);
+       }
        e = fd < 0 ? errno : 0;
        check_cwd();
        if (fd < 0) {
@@ -1783,6 +1789,8 @@ afsync_f(int opno, long r)
                        printf("%d/%d: afsync - open %s failed %d\n",
                               procid, opno, f.path, e);
                free_pathname(&f);
+               if (dir)
+                       closedir(dir);
                return;
        }
 
@@ -1791,24 +1799,24 @@ afsync_f(int opno, long r)
                if (v)
                        printf("%d/%d: afsync - io_submit %s %d\n",
                               procid, opno, f.path, e);
-               free_pathname(&f);
-               close(fd);
-               return;
+               goto out;
        }
        if ((e = io_getevents(io_ctx, 1, 1, &event, NULL)) != 1) {
                if (v)
                        printf("%d/%d: afsync - io_getevents failed %d\n",
                               procid, opno, e);
-               free_pathname(&f);
-               close(fd);
-               return;
+               goto out;
        }
 
        e = event.res2;
        if (v)
                printf("%d/%d: afsync %s %d\n", procid, opno, f.path, e);
+out:
        free_pathname(&f);
-       close(fd);
+       if (dir)
+               closedir(dir);
+       else
+               close(fd);
 #endif
 }
 
-- 
2.11.0