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From: Eric Van Hensbergen <ericvh@kernel.org>
To: Latchesar Ionkov <lucho@ionkov.net>,
	 Dominique Martinet <asmadeus@codewreck.org>,
	 Christian Schoenebeck <linux_oss@crudebyte.com>
Cc: v9fs@lists.linux.dev, linux-kernel@vger.kernel.org,
	 Eric Van Hensbergen <ericvh@kernel.org>
Subject: [PATCH v2 4/8] fs/9p: Eliminate redundant non-cache path in mknod
Date: Mon, 08 Jan 2024 15:18:20 +0000	[thread overview]
Message-ID: <20240108-ericvh-fix-cache-dups-v2-4-a73f8822838c@kernel.org> (raw)
In-Reply-To: <20240108-ericvh-fix-cache-dups-v2-0-a73f8822838c@kernel.org>

Like symlink, mknod had a seperate path with different inode
allocation -- but this seems unnecessary, so eliminating this path.

Signed-off-by: Eric Van Hensbergen <ericvh@kernel.org>
---
 fs/9p/vfs_inode_dotl.c | 36 ++++++++++--------------------------
 1 file changed, 10 insertions(+), 26 deletions(-)

diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index ab52a89367d2..ddc3cfdcc13b 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -836,33 +836,17 @@ v9fs_vfs_mknod_dotl(struct mnt_idmap *idmap, struct inode *dir,
 			 err);
 		goto error;
 	}
-
-	/* instantiate inode and assign the unopened fid to the dentry */
-	if (v9ses->cache & (CACHE_META|CACHE_LOOSE)) {
-		inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
-		if (IS_ERR(inode)) {
-			err = PTR_ERR(inode);
-			p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n",
-				 err);
-			goto error;
-		}
-		v9fs_set_create_acl(inode, fid, dacl, pacl);
-		v9fs_fid_add(dentry, &fid);
-		d_instantiate(dentry, inode);
-		err = 0;
-	} else {
-		/*
-		 * Not in cached mode. No need to populate inode with stat.
-		 * socket syscall returns a fd, so we need instantiate
-		 */
-		inode = v9fs_get_inode(dir->i_sb, mode, rdev);
-		if (IS_ERR(inode)) {
-			err = PTR_ERR(inode);
-			goto error;
-		}
-		v9fs_set_create_acl(inode, fid, dacl, pacl);
-		d_instantiate(dentry, inode);
+	inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
+	if (IS_ERR(inode)) {
+		err = PTR_ERR(inode);
+		p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n",
+			 err);
+		goto error;
 	}
+	v9fs_set_create_acl(inode, fid, dacl, pacl);
+	v9fs_fid_add(dentry, &fid);
+	d_instantiate(dentry, inode);
+	err = 0;
 error:
 	p9_fid_put(fid);
 	v9fs_put_acl(dacl, pacl);

-- 
2.41.0


  parent reply	other threads:[~2024-01-08 15:18 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-01-08 15:18 [PATCH v2 0/8] fs/9p: simplify inode lookup operations Eric Van Hensbergen
2024-01-08 15:18 ` [PATCH v2 1/8] fs/9p: switch vfsmount to use v9fs_get_new_inode Eric Van Hensbergen
2024-01-08 15:18 ` [PATCH v2 2/8] fs/9p: convert mkdir to use get_new_inode Eric Van Hensbergen
2024-01-08 15:18 ` [PATCH v2 3/8] fs/9p: remove walk and inode allocation from symlink Eric Van Hensbergen
2024-01-08 15:18 ` Eric Van Hensbergen [this message]
2024-01-08 15:18 ` [PATCH v2 5/8] fs/9p: Eliminate now unused v9fs_get_inode Eric Van Hensbergen
2024-01-08 15:18 ` [PATCH v2 6/8] fs/9p: rework qid2ino logic Eric Van Hensbergen
2024-01-08 15:18 ` [PATCH v2 7/8] fs/9p: simplify iget to remove unnecessary paths Eric Van Hensbergen
2024-01-08 15:18 ` [PATCH v2 8/8] fs/9p: fix dups even in uncached mode Eric Van Hensbergen

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