From: David Howells <dhowells@redhat.com>
To: Steve French <smfrench@gmail.com>
Cc: David Howells <dhowells@redhat.com>,
Jeff Layton <jlayton@kernel.org>,
Matthew Wilcox <willy@infradead.org>,
Paulo Alcantara <pc@manguebit.com>,
Shyam Prasad N <sprasad@microsoft.com>,
Tom Talpey <tom@talpey.com>,
Christian Brauner <christian@brauner.io>,
netfs@lists.linux.dev, linux-cifs@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org, Steve French <sfrench@samba.org>,
Shyam Prasad N <nspmangalore@gmail.com>,
Rohith Surabattula <rohiths.msft@gmail.com>
Subject: [PATCH v7 10/16] cifs: Make add_credits_and_wake_if() clear deducted credits
Date: Tue, 30 Apr 2024 15:09:22 +0100 [thread overview]
Message-ID: <20240430140930.262762-11-dhowells@redhat.com> (raw)
In-Reply-To: <20240430140930.262762-1-dhowells@redhat.com>
Make add_credits_and_wake_if() clear the amount of credits in the
cifs_credits struct after it has returned them to the overall counter.
This allows add_credits_and_wake_if() to be called multiple times during
the error handling and cleanup without accidentally returning the credits
again and again.
Note that the wake_up() in add_credits_and_wake_if() may also be
superfluous as ->add_credits() also does a wake on the request_q.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: Shyam Prasad N <nspmangalore@gmail.com>
cc: Rohith Surabattula <rohiths.msft@gmail.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cifs@vger.kernel.org
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
---
fs/smb/client/cifsglob.h | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/smb/client/cifsglob.h b/fs/smb/client/cifsglob.h
index 29c9ee2dd304..611f59c6d2c0 100644
--- a/fs/smb/client/cifsglob.h
+++ b/fs/smb/client/cifsglob.h
@@ -881,11 +881,12 @@ add_credits(struct TCP_Server_Info *server, const struct cifs_credits *credits,
static inline void
add_credits_and_wake_if(struct TCP_Server_Info *server,
- const struct cifs_credits *credits, const int optype)
+ struct cifs_credits *credits, const int optype)
{
if (credits->value) {
server->ops->add_credits(server, credits, optype);
wake_up(&server->request_q);
+ credits->value = 0;
}
}
next prev parent reply other threads:[~2024-04-30 14:10 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 14:09 [PATCH v7 00/16] netfs, cifs: Delegate high-level I/O to netfslib David Howells
2024-04-30 14:09 ` [PATCH v7 01/16] cifs: Use alternative invalidation to using launder_folio David Howells
2024-04-30 14:09 ` [PATCH v7 02/16] cifs: Replace cifs_readdata with a wrapper around netfs_io_subrequest David Howells
2024-04-30 14:09 ` [PATCH v7 03/16] cifs: Replace cifs_writedata " David Howells
2024-04-30 14:09 ` [PATCH v7 04/16] cifs: Use more fields from netfs_io_subrequest David Howells
2024-04-30 14:09 ` [PATCH v7 05/16] cifs: Make wait_mtu_credits take size_t args David Howells
2024-04-30 14:09 ` [PATCH v7 06/16] cifs: Replace the writedata replay bool with a netfs sreq flag David Howells
2024-04-30 14:09 ` [PATCH v7 07/16] cifs: Move cifs_loose_read_iter() and cifs_file_write_iter() to file.c David Howells
2024-04-30 14:09 ` [PATCH v7 08/16] cifs: Set zero_point in the copy_file_range() and remap_file_range() David Howells
2024-04-30 14:09 ` [PATCH v7 09/16] cifs: Add mempools for cifs_io_request and cifs_io_subrequest structs David Howells
2024-04-30 14:09 ` David Howells [this message]
2024-04-30 14:09 ` [PATCH v7 11/16] cifs: Implement netfslib hooks David Howells
2024-04-30 14:09 ` [PATCH v7 12/16] cifs: Cut over to using netfslib David Howells
2024-04-30 14:09 ` [PATCH v7 13/16] cifs: Remove some code that's no longer used, part 1 David Howells
2024-04-30 14:09 ` [PATCH v7 14/16] cifs: Remove some code that's no longer used, part 2 David Howells
2024-04-30 14:09 ` [PATCH v7 15/16] cifs: Remove some code that's no longer used, part 3 David Howells
2024-04-30 14:09 ` [PATCH v7 16/16] cifs: Enable large folio support David Howells
2024-04-30 14:47 ` [PATCH v7 00/16] netfs, cifs: Delegate high-level I/O to netfslib David Howells
2024-04-30 14:58 ` Steve French
2024-05-02 14:13 ` Christian Brauner
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