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在 2023/6/15 下午5:53, Yinbo Zhu 写道:

From: Steve French stfrench@microsoft.com

We should not be caching closed files when freeze is invoked on an fs (so we can release resources more gracefully).

Fixes xfstests generic/068 generic/390 generic/491

Reviewed-by: David Howells dhowells@redhat.com Cc: stable@vger.kernel.org Signed-off-by: Steve French stfrench@microsoft.com

---

fs/cifs/cifsfs.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+)

diff --git a/fs/cifs/cifsfs.c b/fs/cifs/cifsfs.c index 8b6b3b6985f3..43a4d8603db3 100644 --- a/fs/cifs/cifsfs.c +++ b/fs/cifs/cifsfs.c @@ -760,6 +760,20 @@ static void cifs_umount_begin(struct super_block *sb) return; } +static int cifs_freeze(struct super_block *sb) +{

• struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
• struct cifs_tcon *tcon;
• if (cifs_sb == NULL)

• return 0;
  

• tcon = cifs_sb_master_tcon(cifs_sb);
• cifs_close_all_deferred_files(tcon);
• return 0;

+}

• #ifdef CONFIG_CIFS_STATS2 static int cifs_show_stats(struct seq_file *s, struct dentry *root) {

@@ -798,6 +812,7 @@ static const struct super_operations cifs_super_ops = { as opens */ .show_options = cifs_show_options, .umount_begin = cifs_umount_begin,

• .freeze_fs = cifs_freeze, #ifdef CONFIG_CIFS_STATS2 .show_stats = cifs_show_stats, #endif