From: Jiachen Zhang Date: Wed, 28 Sep 2022 12:19:34 +0000 (+0800) Subject: fuse: always revalidate rename target dentry X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=7ca973d830c0050ed8def693f7a8b2ef588b6142;p=users%2Fjedix%2Flinux-maple.git fuse: always revalidate rename target dentry commit ccc031e26afe60d2a5a3d93dabd9c978210825fb upstream. The previous commit df8629af2934 ("fuse: always revalidate if exclusive create") ensures that the dentries are revalidated on O_EXCL creates. This commit complements it by also performing revalidation for rename target dentries. Otherwise, a rename target file that only exists in kernel dentry cache but not in the filesystem will result in EEXIST if RENAME_NOREPLACE flag is used. Signed-off-by: Jiachen Zhang Signed-off-by: Zhang Tianci Signed-off-by: Miklos Szeredi Signed-off-by: Yang Bo Signed-off-by: Greg Kroah-Hartman --- diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index bb97a384dc5dd..904673a4f6902 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -214,7 +214,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags) if (inode && fuse_is_bad(inode)) goto invalid; else if (time_before64(fuse_dentry_time(entry), get_jiffies_64()) || - (flags & (LOOKUP_EXCL | LOOKUP_REVAL))) { + (flags & (LOOKUP_EXCL | LOOKUP_REVAL | LOOKUP_RENAME_TARGET))) { struct fuse_entry_out outarg; FUSE_ARGS(args); struct fuse_forget_link *forget;