diff options
Diffstat (limited to 'fs/netfs/main.c')
| -rw-r--r-- | fs/netfs/main.c | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/fs/netfs/main.c b/fs/netfs/main.c index db824c372842..73da6c9f5777 100644 --- a/fs/netfs/main.c +++ b/fs/netfs/main.c @@ -20,6 +20,10 @@ MODULE_LICENSE("GPL"); EXPORT_TRACEPOINT_SYMBOL(netfs_sreq); +unsigned netfs_debug; +module_param_named(debug, netfs_debug, uint, S_IWUSR | S_IRUGO); +MODULE_PARM_DESC(netfs_debug, "Netfs support debugging mask"); + static struct kmem_cache *netfs_request_slab; static struct kmem_cache *netfs_subrequest_slab; mempool_t netfs_request_pool; @@ -32,13 +36,17 @@ DEFINE_SPINLOCK(netfs_proc_lock); static const char *netfs_origins[nr__netfs_io_origin] = { [NETFS_READAHEAD] = "RA", [NETFS_READPAGE] = "RP", + [NETFS_READ_GAPS] = "RG", + [NETFS_READ_SINGLE] = "R1", [NETFS_READ_FOR_WRITE] = "RW", - [NETFS_COPY_TO_CACHE] = "CC", + [NETFS_UNBUFFERED_READ] = "UR", + [NETFS_DIO_READ] = "DR", [NETFS_WRITEBACK] = "WB", + [NETFS_WRITEBACK_SINGLE] = "W1", [NETFS_WRITETHROUGH] = "WT", [NETFS_UNBUFFERED_WRITE] = "UW", - [NETFS_DIO_READ] = "DR", [NETFS_DIO_WRITE] = "DW", + [NETFS_PGPRIV2_COPY_TO_CACHE] = "2C", }; /* @@ -50,21 +58,21 @@ static int netfs_requests_seq_show(struct seq_file *m, void *v) if (v == &netfs_io_requests) { seq_puts(m, - "REQUEST OR REF FL ERR OPS COVERAGE\n" - "======== == === == ==== === =========\n" + "REQUEST OR REF FLAG ERR OPS COVERAGE\n" + "======== == === ==== ==== === =========\n" ); return 0; } rreq = list_entry(v, struct netfs_io_request, proc_link); seq_printf(m, - "%08x %s %3d %2lx %4d %3d @%04llx %llx/%llx", + "%08x %s %3d %4lx %4ld %3d @%04llx %llx/%llx", rreq->debug_id, netfs_origins[rreq->origin], refcount_read(&rreq->ref), rreq->flags, rreq->error, - atomic_read(&rreq->nr_outstanding), + 0, rreq->start, rreq->submitted, rreq->len); seq_putc(m, '\n'); return 0; @@ -111,7 +119,7 @@ static int __init netfs_init(void) goto error_reqpool; netfs_subrequest_slab = kmem_cache_create("netfs_subrequest", - sizeof(struct netfs_io_subrequest), 0, + sizeof(struct netfs_io_subrequest) + 16, 0, SLAB_HWCACHE_ALIGN | SLAB_ACCOUNT, NULL); if (!netfs_subrequest_slab) @@ -120,11 +128,13 @@ static int __init netfs_init(void) if (mempool_init_slab_pool(&netfs_subrequest_pool, 100, netfs_subrequest_slab) < 0) goto error_subreqpool; +#ifdef CONFIG_PROC_FS if (!proc_mkdir("fs/netfs", NULL)) goto error_proc; if (!proc_create_seq("fs/netfs/requests", S_IFREG | 0444, NULL, &netfs_requests_seq_ops)) goto error_procfile; +#endif #ifdef CONFIG_FSCACHE_STATS if (!proc_create_single("fs/netfs/stats", S_IFREG | 0444, NULL, netfs_stats_show)) @@ -137,9 +147,11 @@ static int __init netfs_init(void) return 0; error_fscache: +#ifdef CONFIG_PROC_FS error_procfile: - remove_proc_entry("fs/netfs", NULL); + remove_proc_subtree("fs/netfs", NULL); error_proc: +#endif mempool_exit(&netfs_subrequest_pool); error_subreqpool: kmem_cache_destroy(netfs_subrequest_slab); @@ -155,7 +167,7 @@ fs_initcall(netfs_init); static void __exit netfs_exit(void) { fscache_exit(); - remove_proc_entry("fs/netfs", NULL); + remove_proc_subtree("fs/netfs", NULL); mempool_exit(&netfs_subrequest_pool); kmem_cache_destroy(netfs_subrequest_slab); mempool_exit(&netfs_request_pool); |