From: David Howells <dhowells@redhat.com>
To: Christian Brauner <christian@brauner.io>,
Jeff Layton <jlayton@kernel.org>,
Gao Xiang <hsiangkao@linux.alibaba.com>,
Dominique Martinet <asmadeus@codewreck.org>
Cc: David Howells <dhowells@redhat.com>,
Matthew Wilcox <willy@infradead.org>,
Steve French <smfrench@gmail.com>,
Marc Dionne <marc.dionne@auristor.com>,
Paulo Alcantara <pc@manguebit.com>,
Shyam Prasad N <sprasad@microsoft.com>,
Tom Talpey <tom@talpey.com>,
Eric Van Hensbergen <ericvh@kernel.org>,
Ilya Dryomov <idryomov@gmail.com>,
netfs@lists.linux.dev, linux-cachefs@redhat.com,
linux-afs@lists.infradead.org, linux-cifs@vger.kernel.org,
linux-nfs@vger.kernel.org, ceph-devel@vger.kernel.org,
v9fs@lists.linux.dev, linux-erofs@lists.ozlabs.org,
linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: [PATCH v2 06/22] netfs: Use subreq_counter to allocate subreq debug_index values
Date: Tue, 30 Apr 2024 15:00:37 +0100 [thread overview]
Message-ID: <20240430140056.261997-7-dhowells@redhat.com> (raw)
In-Reply-To: <20240430140056.261997-1-dhowells@redhat.com>
Use the subreq_counter in netfs_io_request to allocate subrequest
debug_index values in read ops as well as write ops.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
---
fs/netfs/io.c | 7 ++-----
fs/netfs/objects.c | 1 +
fs/netfs/output.c | 1 -
3 files changed, 3 insertions(+), 6 deletions(-)
diff --git a/fs/netfs/io.c b/fs/netfs/io.c
index 2641238aae82..8de581ac0cfb 100644
--- a/fs/netfs/io.c
+++ b/fs/netfs/io.c
@@ -501,8 +501,7 @@ netfs_rreq_prepare_read(struct netfs_io_request *rreq,
* Slice off a piece of a read request and submit an I/O request for it.
*/
static bool netfs_rreq_submit_slice(struct netfs_io_request *rreq,
- struct iov_iter *io_iter,
- unsigned int *_debug_index)
+ struct iov_iter *io_iter)
{
struct netfs_io_subrequest *subreq;
enum netfs_io_source source;
@@ -511,7 +510,6 @@ static bool netfs_rreq_submit_slice(struct netfs_io_request *rreq,
if (!subreq)
return false;
- subreq->debug_index = (*_debug_index)++;
subreq->start = rreq->start + rreq->submitted;
subreq->len = io_iter->count;
@@ -565,7 +563,6 @@ static bool netfs_rreq_submit_slice(struct netfs_io_request *rreq,
int netfs_begin_read(struct netfs_io_request *rreq, bool sync)
{
struct iov_iter io_iter;
- unsigned int debug_index = 0;
int ret;
_enter("R=%x %llx-%llx",
@@ -596,7 +593,7 @@ int netfs_begin_read(struct netfs_io_request *rreq, bool sync)
if (rreq->origin == NETFS_DIO_READ &&
rreq->start + rreq->submitted >= rreq->i_size)
break;
- if (!netfs_rreq_submit_slice(rreq, &io_iter, &debug_index))
+ if (!netfs_rreq_submit_slice(rreq, &io_iter))
break;
if (test_bit(NETFS_RREQ_BLOCKED, &rreq->flags) &&
test_bit(NETFS_RREQ_NONBLOCK, &rreq->flags))
diff --git a/fs/netfs/objects.c b/fs/netfs/objects.c
index 72b52f070270..8acc03a64059 100644
--- a/fs/netfs/objects.c
+++ b/fs/netfs/objects.c
@@ -152,6 +152,7 @@ struct netfs_io_subrequest *netfs_alloc_subrequest(struct netfs_io_request *rreq
INIT_LIST_HEAD(&subreq->rreq_link);
refcount_set(&subreq->ref, 2);
subreq->rreq = rreq;
+ subreq->debug_index = atomic_inc_return(&rreq->subreq_counter);
netfs_get_request(rreq, netfs_rreq_trace_get_subreq);
netfs_stat(&netfs_n_rh_sreq);
}
diff --git a/fs/netfs/output.c b/fs/netfs/output.c
index fbdbb4f78234..e586396d6b72 100644
--- a/fs/netfs/output.c
+++ b/fs/netfs/output.c
@@ -37,7 +37,6 @@ struct netfs_io_subrequest *netfs_create_write_request(struct netfs_io_request *
subreq->source = dest;
subreq->start = start;
subreq->len = len;
- subreq->debug_index = atomic_inc_return(&wreq->subreq_counter);
switch (subreq->source) {
case NETFS_UPLOAD_TO_SERVER:
next prev parent reply other threads:[~2024-04-30 14:01 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 14:00 [PATCH v2 00/22] netfs, afs, 9p, cifs: Rework netfs to use ->writepages() to copy to cache David Howells
2024-04-30 14:00 ` [PATCH v2 01/22] netfs: Update i_blocks when write committed to pagecache David Howells
2024-04-30 14:00 ` [PATCH v2 02/22] netfs: Replace PG_fscache by setting folio->private and marking dirty David Howells
2024-04-30 14:00 ` [PATCH v2 03/22] mm: Remove the PG_fscache alias for PG_private_2 David Howells
2024-04-30 14:00 ` [PATCH v2 04/22] netfs: Remove deprecated use of PG_private_2 as a second writeback flag David Howells
2024-04-30 14:00 ` [PATCH v2 05/22] netfs: Make netfs_io_request::subreq_counter an atomic_t David Howells
2024-04-30 14:00 ` David Howells [this message]
2024-04-30 14:00 ` [PATCH v2 07/22] mm: Provide a means of invalidation without using launder_folio David Howells
2024-05-01 4:41 ` Christoph Hellwig
2024-04-30 14:00 ` [PATCH v2 08/22] 9p: Use alternative invalidation to " David Howells
2024-04-30 14:00 ` [PATCH v2 09/22] afs: " David Howells
2024-04-30 14:00 ` [PATCH v2 10/22] netfs: Remove ->launder_folio() support David Howells
2024-04-30 14:00 ` [PATCH v2 11/22] netfs: Use mempools for allocating requests and subrequests David Howells
2024-04-30 14:00 ` [PATCH v2 12/22] mm: Export writeback_iter() David Howells
2024-04-30 14:00 ` [PATCH v2 13/22] netfs: Switch to using unsigned long long rather than loff_t David Howells
2024-04-30 14:00 ` [PATCH v2 14/22] netfs: New writeback implementation David Howells
2024-04-30 14:00 ` [PATCH v2 15/22] netfs: Add some write-side stats and clean up some stat names David Howells
2024-04-30 14:00 ` [PATCH v2 16/22] netfs, afs: Implement helpers for new write code David Howells
2024-04-30 14:00 ` [PATCH v2 17/22] netfs, 9p: " David Howells
2024-04-30 14:00 ` [PATCH v2 18/22] netfs, cachefiles: " David Howells
2024-04-30 14:00 ` [PATCH v2 19/22] netfs: Cut over to using new writeback code David Howells
2024-04-30 14:00 ` [PATCH v2 20/22] netfs: Remove the old " David Howells
2024-04-30 14:00 ` [PATCH v2 21/22] netfs: Miscellaneous tidy ups David Howells
2024-04-30 14:00 ` [PATCH v2 22/22] netfs, afs: Use writeback retry to deal with alternate keys David Howells
2024-05-01 11:51 ` [PATCH v2 07/22] mm: Provide a means of invalidation without using launder_folio David Howells
2024-05-01 17:00 ` [PATCH v2 14/22] netfs: New writeback implementation David Howells
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