From: Nikolay Borisov <nborisov@suse.com>
To: Al Viro <viro@ZenIV.linux.org.uk>, linux-fsdevel@vger.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
linux-kernel@vger.kernel.org,
Miklos Szeredi <mszeredi@redhat.com>,
David Sterba <dsterba@suse.cz>,
linux-btrfs <linux-btrfs@vger.kernel.org>
Subject: Re: [PATCH 14/16] btrfs: simplify btrfs_iget()
Date: Mon, 30 Jul 2018 11:17:14 +0300 [thread overview]
Message-ID: <4d23323d-9c85-bcfc-ffb8-6477a9ef3c38@suse.com> (raw)
In-Reply-To: <20180729220453.13431-14-viro@ZenIV.linux.org.uk>
[ADDED David Sterba and Linux-btrfs ml to cc. ]
On 30.07.2018 01:04, Al Viro wrote:
> From: Al Viro <viro@zeniv.linux.org.uk>
>
> don't open-code iget_failed(), don't bother with btrfs_free_path(NULL),
> move handling of positive return values of btrfs_lookup_inode() from
> btrfs_read_locked_inode() to btrfs_iget() and kill now obviously pointless
> ASSERT() in there.
>
> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Nikolay Borisov <nborisov@suse.com>
> ---
> fs/btrfs/inode.c | 24 ++++++++----------------
> 1 file changed, 8 insertions(+), 16 deletions(-)
>
> diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
> index 8f0b2592feb0..388b2dba68a0 100644
> --- a/fs/btrfs/inode.c
> +++ b/fs/btrfs/inode.c
> @@ -3610,18 +3610,15 @@ static int btrfs_read_locked_inode(struct inode *inode)
> filled = true;
>
> path = btrfs_alloc_path();
> - if (!path) {
> - ret = -ENOMEM;
> - goto make_bad;
> - }
> + if (!path)
> + return -ENOMEM;
>
> memcpy(&location, &BTRFS_I(inode)->location, sizeof(location));
>
> ret = btrfs_lookup_inode(NULL, root, path, &location, 0);
> if (ret) {
> - if (ret > 0)
> - ret = -ENOENT;
> - goto make_bad;
> + btrfs_free_path(path);
> + return ret;
> }
>
> leaf = path->nodes[0];
> @@ -3774,10 +3771,6 @@ static int btrfs_read_locked_inode(struct inode *inode)
>
> btrfs_sync_inode_flags_to_i_flags(inode);
> return 0;
> -
> -make_bad:
> - btrfs_free_path(path);
> - return ret;
> }
>
> /*
> @@ -5713,11 +5706,10 @@ struct inode *btrfs_iget(struct super_block *s, struct btrfs_key *location,
> if (new)
> *new = 1;
> } else {
> - make_bad_inode(inode);
> - unlock_new_inode(inode);
> - iput(inode);
> - ASSERT(ret < 0);
> - inode = ERR_PTR(ret < 0 ? ret : -ESTALE);
> + iget_failed(inode);
> + if (ret > 0)
> + ret = -ENOENT;
> + inode = ERR_PTR(ret);
> }
> }
>
>
next prev parent reply other threads:[~2018-07-30 8:17 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-29 22:03 [PATCHES][RFC] icache-related stuff Al Viro
2018-07-29 22:04 ` [PATCH 01/16] nfs_instantiate(): prevent multiple aliases for directory inode Al Viro
2018-07-29 22:04 ` [PATCH 02/16] new primitive: discard_new_inode() Al Viro
2018-07-29 22:04 ` [PATCH 03/16] vfs: don't evict uninitialized inode Al Viro
2018-07-30 5:09 ` Amir Goldstein
2018-07-30 7:41 ` Miklos Szeredi
2018-08-16 16:29 ` Amir Goldstein
2018-08-24 6:47 ` Amir Goldstein
2018-10-08 6:41 ` Miklos Szeredi
2018-10-08 13:23 ` Greg KH
2018-07-29 22:04 ` [PATCH 04/16] btrfs: switch to discard_new_inode() Al Viro
2018-08-01 15:25 ` David Sterba
2018-07-29 22:04 ` [PATCH 05/16] ufs: " Al Viro
2018-07-29 22:04 ` [PATCH 06/16] udf: " Al Viro
2018-07-29 22:04 ` [PATCH 07/16] ext2: make sure that partially set up inodes won't be returned by ext2_iget() Al Viro
2018-07-29 22:04 ` [PATCH 08/16] btrfs: btrfs_iget() never returns an is_bad_inode() inode Al Viro
2018-07-30 8:13 ` Nikolay Borisov
2018-07-29 22:04 ` [PATCH 09/16] btrfs: IS_ERR(p) && PTR_ERR(p) == n is a weird way to spell p == ERR_PTR(n) Al Viro
2018-07-30 8:06 ` Nikolay Borisov
2018-07-29 22:04 ` [PATCH 10/16] kill d_instantiate_no_diralias() Al Viro
2018-07-29 22:04 ` [PATCH 11/16] jfs: switch to discard_new_inode() Al Viro
2018-07-29 22:04 ` [PATCH 12/16] new helper: inode_fake_hash() Al Viro
2018-07-29 22:04 ` [PATCH 13/16] btrfs: lift make_bad_inode() into btrfs_iget() Al Viro
2018-07-30 8:15 ` Nikolay Borisov
2018-07-29 22:04 ` [PATCH 14/16] btrfs: simplify btrfs_iget() Al Viro
2018-07-30 8:17 ` Nikolay Borisov [this message]
2018-07-29 22:04 ` [PATCH 15/16] adfs: don't put inodes into icache Al Viro
2018-07-29 22:04 ` [PATCH 16/16] jfs: don't bother with make_bad_inode() in ialloc() Al Viro
2018-07-30 21:35 ` [PATCHES][RFC] icache-related stuff Linus Torvalds
2018-08-01 15:25 ` David Sterba
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