From df8629af293493757beccac2d3168fe5a315636e Mon Sep 17 00:00:00 2001 From: Miklos Szeredi Date: Wed, 11 Nov 2020 17:22:32 +0100 Subject: [PATCH] fuse: always revalidate if exclusive create Failure to do so may result in EEXIST even if the file only exists in the cache and not in the filesystem. The atomic nature of O_EXCL mandates that the cached state should be ignored and existence verified anew. Reported-by: Ken Schalk Signed-off-by: Miklos Szeredi --- fs/fuse/dir.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/fs/fuse/dir.c b/fs/fuse/dir.c index e9c2445..c3e22a3 100644 --- a/fs/fuse/dir.c +++ b/fs/fuse/dir.c @@ -205,7 +205,7 @@ static int fuse_dentry_revalidate(struct dentry *entry, unsigned int flags) if (inode && is_bad_inode(inode)) goto invalid; else if (time_before64(fuse_dentry_time(entry), get_jiffies_64()) || - (flags & LOOKUP_REVAL)) { + (flags & (LOOKUP_EXCL | LOOKUP_REVAL))) { struct fuse_entry_out outarg; FUSE_ARGS(args); struct fuse_forget_link *forget; -- 2.7.4