From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756586AbZCVT3b (ORCPT ); Sun, 22 Mar 2009 15:29:31 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755889AbZCVT0h (ORCPT ); Sun, 22 Mar 2009 15:26:37 -0400 Received: from brick.kernel.dk ([93.163.65.50]:52617 "EHLO kernel.dk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755593AbZCVT0M (ORCPT ); Sun, 22 Mar 2009 15:26:12 -0400 From: Jens Axboe To: linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org Cc: chris.mason@oracle.com, david@fromorbit.com, npiggin@suse.de, hch@infradead.org, akpm@linux-foundation.org, Jens Axboe Subject: [PATCH 11/12] writeback: add name to backing_dev_info Date: Sun, 22 Mar 2009 20:26:03 +0100 Message-Id: <1237749964-8343-12-git-send-email-jens.axboe@oracle.com> X-Mailer: git-send-email 1.6.2.12.g83676 In-Reply-To: <1237749964-8343-1-git-send-email-jens.axboe@oracle.com> References: <1237749964-8343-1-git-send-email-jens.axboe@oracle.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Just for testing purposes, to be able to easier track who does what. Signed-off-by: Jens Axboe --- block/blk-core.c | 1 + drivers/block/aoe/aoeblk.c | 1 + drivers/char/mem.c | 1 + fs/btrfs/disk-io.c | 1 + fs/char_dev.c | 1 + fs/configfs/inode.c | 1 + fs/fuse/inode.c | 1 + fs/hugetlbfs/inode.c | 1 + fs/nfs/client.c | 1 + fs/ocfs2/dlm/dlmfs.c | 1 + fs/ramfs/inode.c | 1 + fs/sysfs/inode.c | 1 + fs/ubifs/super.c | 1 + include/linux/backing-dev.h | 2 ++ kernel/cgroup.c | 1 + mm/backing-dev.c | 1 + mm/swap_state.c | 1 + 17 files changed, 18 insertions(+), 0 deletions(-) diff --git a/block/blk-core.c b/block/blk-core.c index 29bcfac..b147dc6 100644 --- a/block/blk-core.c +++ b/block/blk-core.c @@ -517,6 +517,7 @@ struct request_queue *blk_alloc_queue_node(gfp_t gfp_mask, int node_id) q->backing_dev_info.unplug_io_fn = blk_backing_dev_unplug; q->backing_dev_info.unplug_io_data = q; + q->backing_dev_info.name = "block"; err = bdi_init(&q->backing_dev_info); if (err) { kmem_cache_free(blk_requestq_cachep, q); diff --git a/drivers/block/aoe/aoeblk.c b/drivers/block/aoe/aoeblk.c index 2307a27..0efb8fc 100644 --- a/drivers/block/aoe/aoeblk.c +++ b/drivers/block/aoe/aoeblk.c @@ -265,6 +265,7 @@ aoeblk_gdalloc(void *vp) } blk_queue_make_request(&d->blkq, aoeblk_make_request); + d->blkq.backing_dev_info.name = "aoe"; if (bdi_init(&d->blkq.backing_dev_info)) goto err_mempool; spin_lock_irqsave(&d->lock, flags); diff --git a/drivers/char/mem.c b/drivers/char/mem.c index 3586b3b..45b485f 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -847,6 +847,7 @@ static const struct file_operations zero_fops = { * - permits private mappings, "copies" are taken of the source of zeros */ static struct backing_dev_info zero_bdi = { + .name = "char/mem", .capabilities = BDI_CAP_MAP_COPY, }; diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 6ec80c0..d95cfdf 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -1342,6 +1342,7 @@ static void btrfs_unplug_io_fn(struct backing_dev_info *bdi, struct page *page) static int setup_bdi(struct btrfs_fs_info *info, struct backing_dev_info *bdi) { + bdi->name = "btrfs"; bdi_init(bdi); bdi->ra_pages = default_backing_dev_info.ra_pages; bdi->state = 0; diff --git a/fs/char_dev.c b/fs/char_dev.c index 38f7122..350ef9c 100644 --- a/fs/char_dev.c +++ b/fs/char_dev.c @@ -32,6 +32,7 @@ * - no readahead or I/O queue unplugging required */ struct backing_dev_info directly_mappable_cdev_bdi = { + .name = "char", .capabilities = ( #ifdef CONFIG_MMU /* permit private copies of the data to be taken */ diff --git a/fs/configfs/inode.c b/fs/configfs/inode.c index 5d349d3..9a266cd 100644 --- a/fs/configfs/inode.c +++ b/fs/configfs/inode.c @@ -46,6 +46,7 @@ static const struct address_space_operations configfs_aops = { }; static struct backing_dev_info configfs_backing_dev_info = { + .name = "configfs", .ra_pages = 0, /* No readahead */ .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK, }; diff --git a/fs/fuse/inode.c b/fs/fuse/inode.c index 459b73d..21ed16c 100644 --- a/fs/fuse/inode.c +++ b/fs/fuse/inode.c @@ -481,6 +481,7 @@ int fuse_conn_init(struct fuse_conn *fc, struct super_block *sb) INIT_LIST_HEAD(&fc->bg_queue); INIT_LIST_HEAD(&fc->entry); atomic_set(&fc->num_waiting, 0); + fc->bdi.name = "fuse"; fc->bdi.ra_pages = (VM_MAX_READAHEAD * 1024) / PAGE_CACHE_SIZE; fc->bdi.unplug_io_fn = default_unplug_io_fn; /* fuse does it's own writeback accounting */ diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c index 9b800d9..042f28e 100644 --- a/fs/hugetlbfs/inode.c +++ b/fs/hugetlbfs/inode.c @@ -44,6 +44,7 @@ static const struct inode_operations hugetlbfs_dir_inode_operations; static const struct inode_operations hugetlbfs_inode_operations; static struct backing_dev_info hugetlbfs_backing_dev_info = { + .name = "hugetlbfs", .ra_pages = 0, /* No readahead */ .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK, }; diff --git a/fs/nfs/client.c b/fs/nfs/client.c index 574158a..5d3fcac 100644 --- a/fs/nfs/client.c +++ b/fs/nfs/client.c @@ -842,6 +842,7 @@ static void nfs_server_set_fsinfo(struct nfs_server *server, struct nfs_fsinfo * server->rsize = NFS_MAX_FILE_IO_SIZE; server->rpages = (server->rsize + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; + server->backing_dev_info.name = "nfs"; server->backing_dev_info.ra_pages = server->rpages * NFS_MAX_READAHEAD; if (server->wsize > max_rpc_payload) diff --git a/fs/ocfs2/dlm/dlmfs.c b/fs/ocfs2/dlm/dlmfs.c index 1c9efb4..02bf178 100644 --- a/fs/ocfs2/dlm/dlmfs.c +++ b/fs/ocfs2/dlm/dlmfs.c @@ -325,6 +325,7 @@ clear_fields: } static struct backing_dev_info dlmfs_backing_dev_info = { + .name = "ocfs2-dlmfs", .ra_pages = 0, /* No readahead */ .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK, }; diff --git a/fs/ramfs/inode.c b/fs/ramfs/inode.c index b7e6ac7..d34bfa4 100644 --- a/fs/ramfs/inode.c +++ b/fs/ramfs/inode.c @@ -43,6 +43,7 @@ static const struct super_operations ramfs_ops; static const struct inode_operations ramfs_dir_inode_operations; static struct backing_dev_info ramfs_backing_dev_info = { + .name = "ramfs", .ra_pages = 0, /* No readahead */ .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK | BDI_CAP_MAP_DIRECT | BDI_CAP_MAP_COPY | diff --git a/fs/sysfs/inode.c b/fs/sysfs/inode.c index dfa3d94..3383f15 100644 --- a/fs/sysfs/inode.c +++ b/fs/sysfs/inode.c @@ -29,6 +29,7 @@ static const struct address_space_operations sysfs_aops = { }; static struct backing_dev_info sysfs_backing_dev_info = { + .name = "sysfs", .ra_pages = 0, /* No readahead */ .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK, }; diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index 1182b66..462bda8 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -1906,6 +1906,7 @@ static int ubifs_fill_super(struct super_block *sb, void *data, int silent) * * Read-ahead will be disabled because @c->bdi.ra_pages is 0. */ + c->bdi.name = "ubifs", c->bdi.capabilities = BDI_CAP_MAP_COPY; c->bdi.unplug_io_fn = default_unplug_io_fn; err = bdi_init(&c->bdi); diff --git a/include/linux/backing-dev.h b/include/linux/backing-dev.h index 9dd8cb9..3d373d4 100644 --- a/include/linux/backing-dev.h +++ b/include/linux/backing-dev.h @@ -72,6 +72,8 @@ struct backing_dev_info { void (*unplug_io_fn)(struct backing_dev_info *, struct page *); void *unplug_io_data; + char *name; + struct percpu_counter bdi_stat[NR_BDI_STAT_ITEMS]; struct prop_local_percpu completions; diff --git a/kernel/cgroup.c b/kernel/cgroup.c index 9edb5c4..c63970e 100644 --- a/kernel/cgroup.c +++ b/kernel/cgroup.c @@ -564,6 +564,7 @@ static struct inode_operations cgroup_dir_inode_operations; static struct file_operations proc_cgroupstats_operations; static struct backing_dev_info cgroup_backing_dev_info = { + .name = "cgroup", .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK, }; diff --git a/mm/backing-dev.c b/mm/backing-dev.c index e80c90d..981e8e8 100644 --- a/mm/backing-dev.c +++ b/mm/backing-dev.c @@ -17,6 +17,7 @@ void default_unplug_io_fn(struct backing_dev_info *bdi, struct page *page) EXPORT_SYMBOL(default_unplug_io_fn); struct backing_dev_info default_backing_dev_info = { + .name = "default", .ra_pages = VM_MAX_READAHEAD * 1024 / PAGE_CACHE_SIZE, .state = 0, .capabilities = BDI_CAP_MAP_COPY | BDI_CAP_FLUSH_FORKER, diff --git a/mm/swap_state.c b/mm/swap_state.c index 3ecea98..323da00 100644 --- a/mm/swap_state.c +++ b/mm/swap_state.c @@ -34,6 +34,7 @@ static const struct address_space_operations swap_aops = { }; static struct backing_dev_info swap_backing_dev_info = { + .name = "swap", .capabilities = BDI_CAP_NO_ACCT_AND_WRITEBACK | BDI_CAP_SWAP_BACKED, .unplug_io_fn = swap_unplug_io_fn, }; -- 1.6.2.12.g83676