From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: David Howells <dhowells@redhat.com>,
Marc Dionne <marc.dionne@auristor.com>,
Dominique Martinet <asmadeus@codewreck.org>,
Eric Van Hensbergen <ericvh@kernel.org>,
Latchesar Ionkov <lucho@ionkov.net>,
Christian Schoenebeck <linux_oss@crudebyte.com>,
v9fs@lists.linux.dev, linux-cachefs@redhat.com,
linux-fsdevel@vger.kernel.org, Sasha Levin <sashal@kernel.org>
Subject: [PATCH AUTOSEL 6.7 18/39] 9p: Fix initialisation of netfs_inode for 9p
Date: Sun, 28 Jan 2024 11:10:38 -0500 [thread overview]
Message-ID: <20240128161130.200783-18-sashal@kernel.org> (raw)
In-Reply-To: <20240128161130.200783-1-sashal@kernel.org>
From: David Howells <dhowells@redhat.com>
[ Upstream commit 9546ac78b232bac56ff975072b1965e0e755ebd4 ]
The 9p filesystem is calling netfs_inode_init() in v9fs_init_inode() -
before the struct inode fields have been initialised from the obtained file
stats (ie. after v9fs_stat2inode*() has been called), but netfslib wants to
set a couple of its fields from i_size.
Reported-by: Marc Dionne <marc.dionne@auristor.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Tested-by: Marc Dionne <marc.dionne@auristor.com>
Tested-by: Dominique Martinet <asmadeus@codewreck.org>
Acked-by: Dominique Martinet <asmadeus@codewreck.org>
cc: Eric Van Hensbergen <ericvh@kernel.org>
cc: Latchesar Ionkov <lucho@ionkov.net>
cc: Dominique Martinet <asmadeus@codewreck.org>
cc: Christian Schoenebeck <linux_oss@crudebyte.com>
cc: v9fs@lists.linux.dev
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
fs/9p/v9fs_vfs.h | 1 +
fs/9p/vfs_inode.c | 6 +++---
fs/9p/vfs_inode_dotl.c | 1 +
3 files changed, 5 insertions(+), 3 deletions(-)
diff --git a/fs/9p/v9fs_vfs.h b/fs/9p/v9fs_vfs.h
index 731e3d14b67d..0e8418066a48 100644
--- a/fs/9p/v9fs_vfs.h
+++ b/fs/9p/v9fs_vfs.h
@@ -42,6 +42,7 @@ struct inode *v9fs_alloc_inode(struct super_block *sb);
void v9fs_free_inode(struct inode *inode);
struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode,
dev_t rdev);
+void v9fs_set_netfs_context(struct inode *inode);
int v9fs_init_inode(struct v9fs_session_info *v9ses,
struct inode *inode, umode_t mode, dev_t rdev);
void v9fs_evict_inode(struct inode *inode);
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index b845ee18a80b..90dc5ef75516 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -246,7 +246,7 @@ void v9fs_free_inode(struct inode *inode)
/*
* Set parameters for the netfs library
*/
-static void v9fs_set_netfs_context(struct inode *inode)
+void v9fs_set_netfs_context(struct inode *inode)
{
struct v9fs_inode *v9inode = V9FS_I(inode);
netfs_inode_init(&v9inode->netfs, &v9fs_req_ops);
@@ -326,8 +326,6 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
err = -EINVAL;
goto error;
}
-
- v9fs_set_netfs_context(inode);
error:
return err;
@@ -359,6 +357,7 @@ struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t rdev)
iput(inode);
return ERR_PTR(err);
}
+ v9fs_set_netfs_context(inode);
return inode;
}
@@ -464,6 +463,7 @@ static struct inode *v9fs_qid_iget(struct super_block *sb,
goto error;
v9fs_stat2inode(st, inode, sb, 0);
+ v9fs_set_netfs_context(inode);
v9fs_cache_inode_get_cookie(inode);
unlock_new_inode(inode);
return inode;
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index c7319af2f471..d0636b99f05b 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -128,6 +128,7 @@ static struct inode *v9fs_qid_iget_dotl(struct super_block *sb,
goto error;
v9fs_stat2inode_dotl(st, inode, 0);
+ v9fs_set_netfs_context(inode);
v9fs_cache_inode_get_cookie(inode);
retval = v9fs_get_acl(inode, fid);
if (retval)
--
2.43.0
parent reply other threads:[~2024-01-28 16:12 UTC|newest]
Thread overview: expand[flat|nested] mbox.gz Atom feed
[parent not found: <20240128161130.200783-1-sashal@kernel.org>]
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