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From: Al Viro <viro@zeniv.linux.org.uk>
To: Keiichi Watanabe <keiichiw@chromium.org>
Cc: bschubert@ddn.com, linux-fsdevel@vger.kernel.org,
	bernd.schubert@fastmail.fm, miklos@szeredi.hu, dsingh@ddn.com,
	hbirthelmer@ddn.com, brauner@kernel.org,
	yuanyaogoog@chromium.org
Subject: Re: [PATCH] fuse: Do NULL check instead of IS_ERR in atomic_open
Date: Sun, 24 Mar 2024 04:32:43 +0000	[thread overview]
Message-ID: <20240324043243.GS538574@ZenIV> (raw)
In-Reply-To: <20240314103404.2457718-1-keiichiw@chromium.org>

On Thu, Mar 14, 2024 at 07:34:04PM +0900, Keiichi Watanabe wrote:
> Since d_splice_alias returns NULL on error, we need to do NUL check
> instead of IS_ERR.

d_splice_alias() does *NOT* return NULL on error.  Never did.  Moreover,
passing it a pointer to non-directory inode will definitely return NULL.
So will passing it a pointer to directory inode that currently has
no aliases.

NAK.

  parent reply	other threads:[~2024-03-24  4:32 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-23 18:30 [PATCH v10 0/8] fuse: full atomic open and atomic-open-revalidate Bernd Schubert
2023-10-23 18:30 ` [PATCH v10 1/8] fuse: rename fuse_create_open Bernd Schubert
2023-10-23 18:30 ` [PATCH v10 2/8] fuse: introduce atomic open Bernd Schubert
2023-10-24 10:12   ` Yuan Yao
2023-10-24 12:36     ` Bernd Schubert
2023-10-26  2:42       ` Yuan Yao
2023-11-29  6:46         ` [PATCH 0/1] Adapt atomic open to fuse no_open/no_open_dir Yuan Yao
2023-11-29  6:46           ` [PATCH 1/1] fuse: Handle no_open/no_opendir in atomic_open Yuan Yao
2023-11-29 22:21             ` Bernd Schubert
2023-10-28  3:03   ` [PATCH v10 2/8] fuse: introduce atomic open Al Viro
2023-10-30 15:21     ` Bernd Schubert
2024-01-23  8:40   ` [PATCH 0/1] Fix-atomic_open-not-using-negative-d_entry Yuan Yao
2024-01-23  8:40     ` [PATCH 1/1] fuse: Make atomic_open use negative d_entry Yuan Yao
2024-01-27 13:38       ` Bernd Schubert
2024-02-09  7:46         ` Yuan Yao
2024-02-19 11:37           ` Bernd Schubert
2024-03-13 10:25             ` Yuan Yao
2024-03-13 23:00               ` Bernd Schubert
2024-03-14 10:34   ` [PATCH] fuse: Do NULL check instead of IS_ERR in atomic_open Keiichi Watanabe
2024-03-15 13:09     ` Keiichi Watanabe
2024-03-24  4:32     ` Al Viro [this message]
2023-10-23 18:30 ` [PATCH v10 3/8] [RFC] Allow atomic_open() on positive dentry (O_CREAT) Bernd Schubert
2023-10-23 18:30 ` [PATCH v10 4/8] [RFC] Allow atomic_open() on positive dentry (w/o O_CREAT) Bernd Schubert
2023-10-24 13:46   ` Bernd Schubert
2023-10-28  4:46   ` Al Viro
2023-10-23 18:30 ` [PATCH v10 5/8] fuse: Revalidate positive entries in fuse_atomic_open Bernd Schubert
2023-10-28  5:18   ` Al Viro
2023-10-28  5:25   ` Al Viro
2023-10-23 18:30 ` [PATCH v10 6/8] fuse: Return D_REVALIDATE_ATOMIC for cached dentries Bernd Schubert
2023-10-23 18:30 ` [PATCH v10 7/8] fuse: Avoid code duplication in atomic open Bernd Schubert
2023-10-23 18:30 ` [PATCH v10 8/8] fuse atomic open: No fallback for symlinks, just call finish_no_open Bernd Schubert

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