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From: "J. Bruce Fields" <bfields@fieldses.org>
To: Jeff Layton <jlayton@poochiereds.net>
Cc: trond.myklebust@primarydata.com, linux-nfs@vger.kernel.org,
	Eric Paris <eparis@parisplace.org>,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH v1 31/38] nfs: replace d_add with d_splice_alias in atomic_open
Date: Thu, 19 Nov 2015 17:32:20 -0500	[thread overview]
Message-ID: <20151119223220.GC8506@fieldses.org> (raw)
In-Reply-To: <20151119155931.2535b795@tlielax.poochiereds.net>

On Thu, Nov 19, 2015 at 03:59:31PM -0500, Jeff Layton wrote:
> Ahh right -- good point. d_splice_alias does this:
> 
>         if (!inode) {
>                 __d_instantiate(dentry, NULL);
>                 goto out;
>         }
> [...]
> out:
> 	security_d_instantiate(dentry, inode);
>         d_rehash(dentry);
>         return NULL;
> 
> ...which is exactly what d_add does. So yeah, that change isn't
> strictly necessary. Still, it might be more future-proof to use
> d_splice_alias there if the semantics ever change...

Could be, I don't know.

May as well apply it (or not) independently of this series, though.

--b.

  reply	other threads:[~2015-11-19 22:32 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-17 11:52 [PATCH v1 00/38] Allow NFS filesystems to be reexported via knfsd Jeff Layton
2015-11-17 11:52 ` [PATCH v1 01/38] nfsd: add new io class tracepoint Jeff Layton
2015-11-17 11:52 ` [PATCH v1 02/38] fs: have flush_delayed_fput flush the workqueue job Jeff Layton
2015-11-17 11:52 ` [PATCH v1 03/38] fs: add a kerneldoc header to fput Jeff Layton
2015-11-17 11:52 ` [PATCH v1 04/38] fs: rename "delayed_fput" infrastructure to "fput_global" Jeff Layton
2015-11-17 11:52 ` [PATCH v1 05/38] fs: add fput_global Jeff Layton
2015-11-17 11:52 ` [PATCH v1 06/38] fsnotify: fix a sparse warning Jeff Layton
2015-11-17 11:52 ` [PATCH v1 07/38] fsnotify: export several symbols Jeff Layton
2015-11-17 11:52 ` [PATCH v1 08/38] fsnotify: destroy marks with call_srcu instead of dedicated thread Jeff Layton
2015-11-17 11:52 ` [PATCH v1 09/38] fsnotify: add a srcu barrier for fsnotify Jeff Layton
2015-11-17 11:52 ` [PATCH v1 10/38] locks: create a new notifier chain for lease attempts Jeff Layton
2015-11-17 11:52 ` [PATCH v1 11/38] sunrpc: add a new cache_detail operation for when a cache is flushed Jeff Layton
2015-11-17 11:52 ` [PATCH v1 12/38] nfsd: add a new struct file caching facility to nfsd Jeff Layton
2015-11-17 11:52 ` [PATCH v1 13/38] nfsd: keep some rudimentary stats on nfsd_file cache Jeff Layton
2015-11-17 11:52 ` [PATCH v1 14/38] nfsd: allow filecache open to skip fh_verify check Jeff Layton
2015-11-17 11:52 ` [PATCH v1 15/38] nfsd: hook up nfsd_write to the new nfsd_file cache Jeff Layton
2015-11-17 11:52 ` [PATCH v1 16/38] nfsd: hook up nfsd_read to the " Jeff Layton
2015-11-17 11:52 ` [PATCH v1 17/38] nfsd: hook nfsd_commit up " Jeff Layton
2015-11-17 11:52 ` [PATCH v1 18/38] nfsd: convert nfs4_file->fi_fds array to use nfsd_files Jeff Layton
2015-11-17 11:52 ` [PATCH v1 19/38] nfsd: have nfsd_test_lock use the nfsd_file cache Jeff Layton
2015-11-17 11:52 ` [PATCH v1 20/38] nfsd: convert fi_deleg_file and ls_file fields to nfsd_file Jeff Layton
2015-11-17 11:52 ` [PATCH v1 21/38] nfsd: hook up nfs4_preprocess_stateid_op to the nfsd_file cache Jeff Layton
2015-11-17 11:52 ` [PATCH v1 22/38] nfsd: rip out the raparms cache Jeff Layton
2015-11-17 11:52 ` [PATCH v1 23/38] nfsd: add a new EXPORT_OP_NOWCC flag to struct export_operations Jeff Layton
2015-11-17 11:52 ` [PATCH v1 24/38] nfsd: allow lockd to be forcibly disabled Jeff Layton
2015-11-17 11:52 ` [PATCH v1 25/38] nfsd: add errno mapping for EREMOTEIO Jeff Layton
2015-11-17 11:52 ` [PATCH v1 26/38] nfsd: return EREMOTE if we find an S_AUTOMOUNT inode Jeff Layton
2015-11-17 11:52 ` [PATCH v1 27/38] nfsd: allow filesystems to opt out of subtree checking Jeff Layton
2015-11-17 22:53   ` Jeff Layton
2015-11-17 11:52 ` [PATCH v1 28/38] nfsd: close cached files prior to a REMOVE or RENAME that would replace target Jeff Layton
2015-11-17 11:52 ` [PATCH v1 29/38] nfsd: retry once in nfsd_open on an -EOPENSTALE return Jeff Layton
2015-11-17 11:52 ` [PATCH v1 30/38] nfsd: close cached file when underlying file systems says no such file Jeff Layton
2015-11-17 11:52 ` [PATCH v1 31/38] nfs: replace d_add with d_splice_alias in atomic_open Jeff Layton
2015-11-19 20:06   ` J. Bruce Fields
2015-11-19 20:52     ` Trond Myklebust
2015-11-19 20:59     ` Jeff Layton
2015-11-19 22:32       ` J. Bruce Fields [this message]
2015-11-17 11:52 ` [PATCH v1 32/38] nfs: add encode_fh export op Jeff Layton
2015-11-17 11:52 ` [PATCH v1 33/38] nfs: add fh_to_dentry " Jeff Layton
2015-11-17 11:52 ` [PATCH v1 34/38] nfs: nfs_fh_to_dentry() make use of inode cache Jeff Layton
2015-11-17 11:52 ` [PATCH v1 35/38] nfs4: add NFSv4 LOOKUPP handlers Jeff Layton
2015-11-17 11:52 ` [PATCH v1 36/38] nfs: add a get_parent export operation for NFS Jeff Layton
2015-11-17 11:52 ` [PATCH v1 37/38] nfs: set export ops Jeff Layton
2015-11-17 11:53 ` [PATCH v1 38/38] nfs: add a Kconfig option for NFS reexporting and documentation Jeff Layton
2015-11-18 20:22   ` J. Bruce Fields
2015-11-18 21:15     ` Jeff Layton
2015-11-18 22:30       ` Frank Filz
2015-11-19 14:01         ` Jeff Layton
2015-11-20  0:04       ` J. Bruce Fields
2015-11-20  0:28         ` Jeff Layton
2016-01-14 22:21           ` J. Bruce Fields
2016-01-15 16:00             ` Jeff Layton

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