diff options
| author | David Howells <dhowells@redhat.com> | 2022-03-04 13:34:27 +0300 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2023-12-24 18:08:49 +0300 |
| commit | 87b57a048964abfd5f3d8b79bc55687327f5a380 (patch) | |
| tree | da96f2d7790757766f978f6fe3322a127b25af1f /fs/netfs/internal.h | |
| parent | c9c4ff12df110feb1b91951010f673f4b16e49e8 (diff) | |
| download | linux-87b57a048964abfd5f3d8b79bc55687327f5a380.tar.xz | |
netfs: Add a procfile to list in-progress requests
Add a procfile, /proc/fs/netfs/requests, to list in-progress netfslib I/O
requests.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cachefs@redhat.com
cc: linux-fsdevel@vger.kernel.org
cc: linux-mm@kvack.org
Diffstat (limited to 'fs/netfs/internal.h')
| -rw-r--r-- | fs/netfs/internal.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/fs/netfs/internal.h b/fs/netfs/internal.h index 3f6e22229433..4708fb15446b 100644 --- a/fs/netfs/internal.h +++ b/fs/netfs/internal.h @@ -33,6 +33,28 @@ int netfs_begin_read(struct netfs_io_request *rreq, bool sync); * main.c */ extern unsigned int netfs_debug; +extern struct list_head netfs_io_requests; +extern spinlock_t netfs_proc_lock; + +#ifdef CONFIG_PROC_FS +static inline void netfs_proc_add_rreq(struct netfs_io_request *rreq) +{ + spin_lock(&netfs_proc_lock); + list_add_tail_rcu(&rreq->proc_link, &netfs_io_requests); + spin_unlock(&netfs_proc_lock); +} +static inline void netfs_proc_del_rreq(struct netfs_io_request *rreq) +{ + if (!list_empty(&rreq->proc_link)) { + spin_lock(&netfs_proc_lock); + list_del_rcu(&rreq->proc_link); + spin_unlock(&netfs_proc_lock); + } +} +#else +static inline void netfs_proc_add_rreq(struct netfs_io_request *rreq) {} +static inline void netfs_proc_del_rreq(struct netfs_io_request *rreq) {} +#endif /* * objects.c |