Do a couple of cleanups to 9p:
(1) Remove a couple of unused variables.
(2) Turn a BUG_ON() into a warning, consolidate with another warning and
make the warning message include the inode number rather than
whatever's in i_private (which will get hashed anyway).
Suggested-by: Dominique Martinet <asmadeus@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/ZZULNQAZ0n0WQv7p@xxxxxxxxxxxxx/
Signed-off-by: David Howells <dhowells@xxxxxxxxxx>
cc: Eric Van Hensbergen <ericvh@xxxxxxxxxx>
cc: Latchesar Ionkov <lucho@xxxxxxxxxx>
cc: Christian Schoenebeck <linux_oss@xxxxxxxxxxxxx>
cc: v9fs@xxxxxxxxxxxxxxx
cc: linux-cachefs@xxxxxxxxxx
cc: linux-fsdevel@xxxxxxxxxxxxxxx
---
fs/9p/vfs_addr.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index d8fb407189a0..f7f83eec3bcc 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -28,8 +28,6 @@
static void v9fs_upload_to_server(struct netfs_io_subrequest *subreq)
{
- struct inode *inode = subreq->rreq->inode;
- struct v9fs_inode __maybe_unused *v9inode = V9FS_I(inode);
struct p9_fid *fid = subreq->rreq->netfs_priv;
int err;
@@ -98,15 +96,13 @@ static int v9fs_init_request(struct netfs_io_request *rreq, struct file *file)
if (file) {
fid = file->private_data;
- BUG_ON(!fid);
+ if (!fid)
+ goto no_fid;
p9_fid_get(fid);
} else {
fid = v9fs_fid_find_inode(rreq->inode, writing, INVALID_UID, true);
- if (!fid) {
- WARN_ONCE(1, "folio expected an open fid inode->i_private=%p\n",
- rreq->inode->i_private);
- return -EINVAL;
- }
+ if (!fid)
+ goto no_fid;
}
/* we might need to read from a fid that was opened write-only
@@ -115,6 +111,11 @@ static int v9fs_init_request(struct netfs_io_request *rreq, struct file *file)
WARN_ON(rreq->origin == NETFS_READ_FOR_WRITE && !(fid->mode & P9_ORDWR));
rreq->netfs_priv = fid;
return 0;
+
+no_fid:
+ WARN_ONCE(1, "folio expected an open fid inode->i_ino=%lx\n",
+ rreq->inode->i_ino);
+ return -EINVAL;
}
/**
