[PATCH 5.14 011/162] cifs: Fix soft lockup during fsstress
From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: 2021-09-27 17:18:45
Also in:
lkml
From: Rohith Surabattula <redacted> commit 71826b068884050d5fdd37fda857ba1539c513d3 upstream. Below traces are observed during fsstress and system got hung. [ 130.698396] watchdog: BUG: soft lockup - CPU#6 stuck for 26s! Cc: stable@vger.kernel.org # 5.13+ Signed-off-by: Rohith Surabattula <redacted> Signed-off-by: Steve French <redacted> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- fs/cifs/misc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/cifs/misc.c
+++ b/fs/cifs/misc.c@@ -736,7 +736,7 @@ cifs_close_deferred_file(struct cifsInod if (cancel_delayed_work(&cfile->deferred)) { tmp_list = kmalloc(sizeof(struct file_list), GFP_ATOMIC); if (tmp_list == NULL) - continue; + break; tmp_list->cfile = cfile; list_add_tail(&tmp_list->list, &file_head); }
@@ -767,7 +767,7 @@ cifs_close_all_deferred_files(struct cif if (cancel_delayed_work(&cfile->deferred)) { tmp_list = kmalloc(sizeof(struct file_list), GFP_ATOMIC); if (tmp_list == NULL) - continue; + break; tmp_list->cfile = cfile; list_add_tail(&tmp_list->list, &file_head); }