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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-01 19:39:57 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-05-01 19:39:57 +0200 |
commit | 694752922b12bd318aa80191bd9d8c3dcfb39055 (patch) | |
tree | 5afe83fd99100bea546dd5a1c1f778c58f41e5c0 /fs/ceph | |
parent | Linux 4.11 (diff) | |
parent | block: hide badblocks attribute by default (diff) | |
download | linux-694752922b12bd318aa80191bd9d8c3dcfb39055.tar.xz linux-694752922b12bd318aa80191bd9d8c3dcfb39055.zip |
Merge branch 'for-4.12/block' of git://git.kernel.dk/linux-block
Pull block layer updates from Jens Axboe:
- Add BFQ IO scheduler under the new blk-mq scheduling framework. BFQ
was initially a fork of CFQ, but subsequently changed to implement
fairness based on B-WF2Q+, a modified variant of WF2Q. BFQ is meant
to be used on desktop type single drives, providing good fairness.
From Paolo.
- Add Kyber IO scheduler. This is a full multiqueue aware scheduler,
using a scalable token based algorithm that throttles IO based on
live completion IO stats, similary to blk-wbt. From Omar.
- A series from Jan, moving users to separately allocated backing
devices. This continues the work of separating backing device life
times, solving various problems with hot removal.
- A series of updates for lightnvm, mostly from Javier. Includes a
'pblk' target that exposes an open channel SSD as a physical block
device.
- A series of fixes and improvements for nbd from Josef.
- A series from Omar, removing queue sharing between devices on mostly
legacy drivers. This helps us clean up other bits, if we know that a
queue only has a single device backing. This has been overdue for
more than a decade.
- Fixes for the blk-stats, and improvements to unify the stats and user
windows. This both improves blk-wbt, and enables other users to
register a need to receive IO stats for a device. From Omar.
- blk-throttle improvements from Shaohua. This provides a scalable
framework for implementing scalable priotization - particularly for
blk-mq, but applicable to any type of block device. The interface is
marked experimental for now.
- Bucketized IO stats for IO polling from Stephen Bates. This improves
efficiency of polled workloads in the presence of mixed block size
IO.
- A few fixes for opal, from Scott.
- A few pulls for NVMe, including a lot of fixes for NVMe-over-fabrics.
From a variety of folks, mostly Sagi and James Smart.
- A series from Bart, improving our exposed info and capabilities from
the blk-mq debugfs support.
- A series from Christoph, cleaning up how handle WRITE_ZEROES.
- A series from Christoph, cleaning up the block layer handling of how
we track errors in a request. On top of being a nice cleanup, it also
shrinks the size of struct request a bit.
- Removal of mg_disk and hd (sorry Linus) by Christoph. The former was
never used by platforms, and the latter has outlived it's usefulness.
- Various little bug fixes and cleanups from a wide variety of folks.
* 'for-4.12/block' of git://git.kernel.dk/linux-block: (329 commits)
block: hide badblocks attribute by default
blk-mq: unify hctx delay_work and run_work
block: add kblock_mod_delayed_work_on()
blk-mq: unify hctx delayed_run_work and run_work
nbd: fix use after free on module unload
MAINTAINERS: bfq: Add Paolo as maintainer for the BFQ I/O scheduler
blk-mq-sched: alloate reserved tags out of normal pool
mtip32xx: use runtime tag to initialize command header
scsi: Implement blk_mq_ops.show_rq()
blk-mq: Add blk_mq_ops.show_rq()
blk-mq: Show operation, cmd_flags and rq_flags names
blk-mq: Make blk_flags_show() callers append a newline character
blk-mq: Move the "state" debugfs attribute one level down
blk-mq: Unregister debugfs attributes earlier
blk-mq: Only unregister hctxs for which registration succeeded
blk-mq-debugfs: Rename functions for registering and unregistering the mq directory
blk-mq: Let blk_mq_debugfs_register() look up the queue name
blk-mq: Register <dev>/queue/mq after having registered <dev>/queue
ide-pm: always pass 0 error to ide_complete_rq in ide_do_devset
ide-pm: always pass 0 error to __blk_end_request_all
..
Diffstat (limited to 'fs/ceph')
-rw-r--r-- | fs/ceph/addr.c | 6 | ||||
-rw-r--r-- | fs/ceph/debugfs.c | 2 | ||||
-rw-r--r-- | fs/ceph/super.c | 35 | ||||
-rw-r--r-- | fs/ceph/super.h | 2 |
4 files changed, 17 insertions, 28 deletions
diff --git a/fs/ceph/addr.c b/fs/ceph/addr.c index 1a3e1b40799a..9ecb2fd348cb 100644 --- a/fs/ceph/addr.c +++ b/fs/ceph/addr.c @@ -578,7 +578,7 @@ static int writepage_nounlock(struct page *page, struct writeback_control *wbc) writeback_stat = atomic_long_inc_return(&fsc->writeback_count); if (writeback_stat > CONGESTION_ON_THRESH(fsc->mount_options->congestion_kb)) - set_bdi_congested(&fsc->backing_dev_info, BLK_RW_ASYNC); + set_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC); set_page_writeback(page); err = ceph_osdc_writepages(osdc, ceph_vino(inode), @@ -700,7 +700,7 @@ static void writepages_finish(struct ceph_osd_request *req) if (atomic_long_dec_return(&fsc->writeback_count) < CONGESTION_OFF_THRESH( fsc->mount_options->congestion_kb)) - clear_bdi_congested(&fsc->backing_dev_info, + clear_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC); if (rc < 0) @@ -979,7 +979,7 @@ get_more_pages: if (atomic_long_inc_return(&fsc->writeback_count) > CONGESTION_ON_THRESH( fsc->mount_options->congestion_kb)) { - set_bdi_congested(&fsc->backing_dev_info, + set_bdi_congested(inode_to_bdi(inode), BLK_RW_ASYNC); } diff --git a/fs/ceph/debugfs.c b/fs/ceph/debugfs.c index f2ae393e2c31..3ef11bc8d728 100644 --- a/fs/ceph/debugfs.c +++ b/fs/ceph/debugfs.c @@ -251,7 +251,7 @@ int ceph_fs_debugfs_init(struct ceph_fs_client *fsc) goto out; snprintf(name, sizeof(name), "../../bdi/%s", - dev_name(fsc->backing_dev_info.dev)); + dev_name(fsc->sb->s_bdi->dev)); fsc->debugfs_bdi = debugfs_create_symlink("bdi", fsc->client->debugfs_dir, diff --git a/fs/ceph/super.c b/fs/ceph/super.c index 0ec8d0114e57..a8c81b2052ca 100644 --- a/fs/ceph/super.c +++ b/fs/ceph/super.c @@ -579,10 +579,6 @@ static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt, atomic_long_set(&fsc->writeback_count, 0); - err = bdi_init(&fsc->backing_dev_info); - if (err < 0) - goto fail_client; - err = -ENOMEM; /* * The number of concurrent works can be high but they don't need @@ -590,7 +586,7 @@ static struct ceph_fs_client *create_fs_client(struct ceph_mount_options *fsopt, */ fsc->wb_wq = alloc_workqueue("ceph-writeback", 0, 1); if (fsc->wb_wq == NULL) - goto fail_bdi; + goto fail_client; fsc->pg_inv_wq = alloc_workqueue("ceph-pg-invalid", 0, 1); if (fsc->pg_inv_wq == NULL) goto fail_wb_wq; @@ -624,8 +620,6 @@ fail_pg_inv_wq: destroy_workqueue(fsc->pg_inv_wq); fail_wb_wq: destroy_workqueue(fsc->wb_wq); -fail_bdi: - bdi_destroy(&fsc->backing_dev_info); fail_client: ceph_destroy_client(fsc->client); fail: @@ -643,8 +637,6 @@ static void destroy_fs_client(struct ceph_fs_client *fsc) destroy_workqueue(fsc->pg_inv_wq); destroy_workqueue(fsc->trunc_wq); - bdi_destroy(&fsc->backing_dev_info); - mempool_destroy(fsc->wb_pagevec_pool); destroy_mount_options(fsc->mount_options); @@ -937,33 +929,32 @@ static int ceph_compare_super(struct super_block *sb, void *data) */ static atomic_long_t bdi_seq = ATOMIC_LONG_INIT(0); -static int ceph_register_bdi(struct super_block *sb, - struct ceph_fs_client *fsc) +static int ceph_setup_bdi(struct super_block *sb, struct ceph_fs_client *fsc) { int err; + err = super_setup_bdi_name(sb, "ceph-%ld", + atomic_long_inc_return(&bdi_seq)); + if (err) + return err; + /* set ra_pages based on rasize mount option? */ if (fsc->mount_options->rasize >= PAGE_SIZE) - fsc->backing_dev_info.ra_pages = + sb->s_bdi->ra_pages = (fsc->mount_options->rasize + PAGE_SIZE - 1) >> PAGE_SHIFT; else - fsc->backing_dev_info.ra_pages = - VM_MAX_READAHEAD * 1024 / PAGE_SIZE; + sb->s_bdi->ra_pages = VM_MAX_READAHEAD * 1024 / PAGE_SIZE; if (fsc->mount_options->rsize > fsc->mount_options->rasize && fsc->mount_options->rsize >= PAGE_SIZE) - fsc->backing_dev_info.io_pages = + sb->s_bdi->io_pages = (fsc->mount_options->rsize + PAGE_SIZE - 1) >> PAGE_SHIFT; else if (fsc->mount_options->rsize == 0) - fsc->backing_dev_info.io_pages = ULONG_MAX; + sb->s_bdi->io_pages = ULONG_MAX; - err = bdi_register(&fsc->backing_dev_info, NULL, "ceph-%ld", - atomic_long_inc_return(&bdi_seq)); - if (!err) - sb->s_bdi = &fsc->backing_dev_info; - return err; + return 0; } static struct dentry *ceph_mount(struct file_system_type *fs_type, @@ -1018,7 +1009,7 @@ static struct dentry *ceph_mount(struct file_system_type *fs_type, dout("get_sb got existing client %p\n", fsc); } else { dout("get_sb using new client %p\n", fsc); - err = ceph_register_bdi(sb, fsc); + err = ceph_setup_bdi(sb, fsc); if (err < 0) { res = ERR_PTR(err); goto out_splat; diff --git a/fs/ceph/super.h b/fs/ceph/super.h index fe6b9cfc4013..176186b12457 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -92,8 +92,6 @@ struct ceph_fs_client { struct workqueue_struct *trunc_wq; atomic_long_t writeback_count; - struct backing_dev_info backing_dev_info; - #ifdef CONFIG_DEBUG_FS struct dentry *debugfs_dentry_lru, *debugfs_caps; struct dentry *debugfs_congestion_kb; |