diff options
Diffstat (limited to 'fs')
-rw-r--r-- | fs/bio.c | 5 | ||||
-rw-r--r-- | fs/block_dev.c | 10 | ||||
-rw-r--r-- | fs/btrfs/disk-io.c | 8 | ||||
-rw-r--r-- | fs/btrfs/inode.c | 6 | ||||
-rw-r--r-- | fs/btrfs/volumes.c | 18 | ||||
-rw-r--r-- | fs/coda/psdev.c | 12 | ||||
-rw-r--r-- | fs/coda/upcall.c | 12 | ||||
-rw-r--r-- | fs/exofs/ios.c | 2 | ||||
-rw-r--r-- | fs/fs-writeback.c | 161 | ||||
-rw-r--r-- | fs/gfs2/log.c | 4 | ||||
-rw-r--r-- | fs/gfs2/meta_io.c | 8 | ||||
-rw-r--r-- | fs/gfs2/ops_fstype.c | 2 | ||||
-rw-r--r-- | fs/nilfs2/segbuf.c | 2 | ||||
-rw-r--r-- | fs/splice.c | 14 |
14 files changed, 147 insertions, 117 deletions
@@ -843,7 +843,8 @@ struct bio *bio_copy_user_iov(struct request_queue *q, if (!bio) goto out_bmd; - bio->bi_rw |= (!write_to_vm << BIO_RW); + if (!write_to_vm) + bio->bi_rw |= REQ_WRITE; ret = 0; @@ -1024,7 +1025,7 @@ static struct bio *__bio_map_user_iov(struct request_queue *q, * set data direction, and check if mapped pages need bouncing */ if (!write_to_vm) - bio->bi_rw |= (1 << BIO_RW); + bio->bi_rw |= REQ_WRITE; bio->bi_bdev = bdev; bio->bi_flags |= (1 << BIO_USER_MAPPED); diff --git a/fs/block_dev.c b/fs/block_dev.c index 451afbd543b..66411463b73 100644 --- a/fs/block_dev.c +++ b/fs/block_dev.c @@ -1346,13 +1346,12 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) return ret; } - lock_kernel(); restart: ret = -ENXIO; disk = get_gendisk(bdev->bd_dev, &partno); if (!disk) - goto out_unlock_kernel; + goto out; mutex_lock_nested(&bdev->bd_mutex, for_part); if (!bdev->bd_openers) { @@ -1432,7 +1431,6 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) if (for_part) bdev->bd_part_count++; mutex_unlock(&bdev->bd_mutex); - unlock_kernel(); return 0; out_clear: @@ -1445,9 +1443,7 @@ static int __blkdev_get(struct block_device *bdev, fmode_t mode, int for_part) bdev->bd_contains = NULL; out_unlock_bdev: mutex_unlock(&bdev->bd_mutex); - out_unlock_kernel: - unlock_kernel(); - + out: if (disk) module_put(disk->fops->owner); put_disk(disk); @@ -1516,7 +1512,6 @@ static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part) struct block_device *victim = NULL; mutex_lock_nested(&bdev->bd_mutex, for_part); - lock_kernel(); if (for_part) bdev->bd_part_count--; @@ -1541,7 +1536,6 @@ static int __blkdev_put(struct block_device *bdev, fmode_t mode, int for_part) victim = bdev->bd_contains; bdev->bd_contains = NULL; } - unlock_kernel(); mutex_unlock(&bdev->bd_mutex); bdput(bdev); if (victim) diff --git a/fs/btrfs/disk-io.c b/fs/btrfs/disk-io.c index 34f7c375567..64f10082f04 100644 --- a/fs/btrfs/disk-io.c +++ b/fs/btrfs/disk-io.c @@ -480,7 +480,7 @@ static void end_workqueue_bio(struct bio *bio, int err) end_io_wq->work.func = end_workqueue_fn; end_io_wq->work.flags = 0; - if (bio->bi_rw & (1 << BIO_RW)) { + if (bio->bi_rw & REQ_WRITE) { if (end_io_wq->metadata) btrfs_queue_worker(&fs_info->endio_meta_write_workers, &end_io_wq->work); @@ -604,7 +604,7 @@ int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode, atomic_inc(&fs_info->nr_async_submits); - if (rw & (1 << BIO_RW_SYNCIO)) + if (rw & REQ_SYNC) btrfs_set_work_high_prio(&async->work); btrfs_queue_worker(&fs_info->workers, &async->work); @@ -668,7 +668,7 @@ static int btree_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, bio, 1); BUG_ON(ret); - if (!(rw & (1 << BIO_RW))) { + if (!(rw & REQ_WRITE)) { /* * called for a read, do the setup so that checksum validation * can happen in the async kernel threads @@ -1427,7 +1427,7 @@ static void end_workqueue_fn(struct btrfs_work *work) * ram and up to date before trying to verify things. For * blocksize <= pagesize, it is basically a noop */ - if (!(bio->bi_rw & (1 << BIO_RW)) && end_io_wq->metadata && + if (!(bio->bi_rw & REQ_WRITE) && end_io_wq->metadata && !bio_ready_for_csum(bio)) { btrfs_queue_worker(&fs_info->endio_meta_workers, &end_io_wq->work); diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c index 8976c3343a9..c03864406af 100644 --- a/fs/btrfs/inode.c +++ b/fs/btrfs/inode.c @@ -1429,7 +1429,7 @@ static int btrfs_submit_bio_hook(struct inode *inode, int rw, struct bio *bio, ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0); BUG_ON(ret); - if (!(rw & (1 << BIO_RW))) { + if (!(rw & REQ_WRITE)) { if (bio_flags & EXTENT_BIO_COMPRESSED) { return btrfs_submit_compressed_read(inode, bio, mirror_num, bio_flags); @@ -1841,7 +1841,7 @@ static int btrfs_io_failed_hook(struct bio *failed_bio, bio->bi_size = 0; bio_add_page(bio, page, failrec->len, start - page_offset(page)); - if (failed_bio->bi_rw & (1 << BIO_RW)) + if (failed_bio->bi_rw & REQ_WRITE) rw = WRITE; else rw = READ; @@ -5647,7 +5647,7 @@ static void btrfs_submit_direct(int rw, struct bio *bio, struct inode *inode, struct bio_vec *bvec = bio->bi_io_vec; u64 start; int skip_sum; - int write = rw & (1 << BIO_RW); + int write = rw & REQ_WRITE; int ret = 0; skip_sum = BTRFS_I(inode)->flags & BTRFS_INODE_NODATASUM; diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c index d6e3af8be95..dd318ff280b 100644 --- a/fs/btrfs/volumes.c +++ b/fs/btrfs/volumes.c @@ -258,7 +258,7 @@ loop_lock: BUG_ON(atomic_read(&cur->bi_cnt) == 0); - if (bio_rw_flagged(cur, BIO_RW_SYNCIO)) + if (cur->bi_rw & REQ_SYNC) num_sync_run++; submit_bio(cur->bi_rw, cur); @@ -2651,7 +2651,7 @@ static int __btrfs_map_block(struct btrfs_mapping_tree *map_tree, int rw, int max_errors = 0; struct btrfs_multi_bio *multi = NULL; - if (multi_ret && !(rw & (1 << BIO_RW))) + if (multi_ret && !(rw & REQ_WRITE)) stripes_allocated = 1; again: if (multi_ret) { @@ -2687,7 +2687,7 @@ again: mirror_num = 0; /* if our multi bio struct is too small, back off and try again */ - if (rw & (1 << BIO_RW)) { + if (rw & REQ_WRITE) { if (map->type & (BTRFS_BLOCK_GROUP_RAID1 | BTRFS_BLOCK_GROUP_DUP)) { stripes_required = map->num_stripes; @@ -2697,7 +2697,7 @@ again: max_errors = 1; } } - if (multi_ret && (rw & (1 << BIO_RW)) && + if (multi_ret && (rw & REQ_WRITE) && stripes_allocated < stripes_required) { stripes_allocated = map->num_stripes; free_extent_map(em); @@ -2733,7 +2733,7 @@ again: num_stripes = 1; stripe_index = 0; if (map->type & BTRFS_BLOCK_GROUP_RAID1) { - if (unplug_page || (rw & (1 << BIO_RW))) + if (unplug_page || (rw & REQ_WRITE)) num_stripes = map->num_stripes; else if (mirror_num) stripe_index = mirror_num - 1; @@ -2744,7 +2744,7 @@ again: } } else if (map->type & BTRFS_BLOCK_GROUP_DUP) { - if (rw & (1 << BIO_RW)) + if (rw & REQ_WRITE) num_stripes = map->num_stripes; else if (mirror_num) stripe_index = mirror_num - 1; @@ -2755,7 +2755,7 @@ again: stripe_index = do_div(stripe_nr, factor); stripe_index *= map->sub_stripes; - if (unplug_page || (rw & (1 << BIO_RW))) + if (unplug_page || (rw & REQ_WRITE)) num_stripes = map->sub_stripes; else if (mirror_num) stripe_index += mirror_num - 1; @@ -2945,7 +2945,7 @@ static noinline int schedule_bio(struct btrfs_root *root, struct btrfs_pending_bios *pending_bios; /* don't bother with additional async steps for reads, right now */ - if (!(rw & (1 << BIO_RW))) { + if (!(rw & REQ_WRITE)) { bio_get(bio); submit_bio(rw, bio); bio_put(bio); @@ -2964,7 +2964,7 @@ static noinline int schedule_bio(struct btrfs_root *root, bio->bi_rw |= rw; spin_lock(&device->io_lock); - if (bio_rw_flagged(bio, BIO_RW_SYNCIO)) + if (bio->bi_rw & REQ_SYNC) pending_bios = &device->pending_sync_bios; else pending_bios = &device->pending_bios; diff --git a/fs/coda/psdev.c b/fs/coda/psdev.c index 66b9cf79c5b..de89645777c 100644 --- a/fs/coda/psdev.c +++ b/fs/coda/psdev.c @@ -177,7 +177,7 @@ static ssize_t coda_psdev_write(struct file *file, const char __user *buf, nbytes = req->uc_outSize; /* don't have more space! */ } if (copy_from_user(req->uc_data, buf, nbytes)) { - req->uc_flags |= REQ_ABORT; + req->uc_flags |= CODA_REQ_ABORT; wake_up(&req->uc_sleep); retval = -EFAULT; goto out; @@ -254,8 +254,8 @@ static ssize_t coda_psdev_read(struct file * file, char __user * buf, retval = -EFAULT; /* If request was not a signal, enqueue and don't free */ - if (!(req->uc_flags & REQ_ASYNC)) { - req->uc_flags |= REQ_READ; + if (!(req->uc_flags & CODA_REQ_ASYNC)) { + req->uc_flags |= CODA_REQ_READ; list_add_tail(&(req->uc_chain), &vcp->vc_processing); goto out; } @@ -315,19 +315,19 @@ static int coda_psdev_release(struct inode * inode, struct file * file) list_del(&req->uc_chain); /* Async requests need to be freed here */ - if (req->uc_flags & REQ_ASYNC) { + if (req->uc_flags & CODA_REQ_ASYNC) { CODA_FREE(req->uc_data, sizeof(struct coda_in_hdr)); kfree(req); continue; } - req->uc_flags |= REQ_ABORT; + req->uc_flags |= CODA_REQ_ABORT; wake_up(&req->uc_sleep); } list_for_each_entry_safe(req, tmp, &vcp->vc_processing, uc_chain) { list_del(&req->uc_chain); - req->uc_flags |= REQ_ABORT; + req->uc_flags |= CODA_REQ_ABORT; wake_up(&req->uc_sleep); } diff --git a/fs/coda/upcall.c b/fs/coda/upcall.c index f09c5ed76f6..b8893ab6f9e 100644 --- a/fs/coda/upcall.c +++ b/fs/coda/upcall.c @@ -604,7 +604,7 @@ static void coda_unblock_signals(sigset_t *old) (((r)->uc_opcode != CODA_CLOSE && \ (r)->uc_opcode != CODA_STORE && \ (r)->uc_opcode != CODA_RELEASE) || \ - (r)->uc_flags & REQ_READ)) + (r)->uc_flags & CODA_REQ_READ)) static inline void coda_waitfor_upcall(struct upc_req *req) { @@ -624,7 +624,7 @@ static inline void coda_waitfor_upcall(struct upc_req *req) set_current_state(TASK_UNINTERRUPTIBLE); /* got a reply */ - if (req->uc_flags & (REQ_WRITE | REQ_ABORT)) + if (req->uc_flags & (CODA_REQ_WRITE | CODA_REQ_ABORT)) break; if (blocked && time_after(jiffies, timeout) && @@ -708,7 +708,7 @@ static int coda_upcall(struct venus_comm *vcp, coda_waitfor_upcall(req); /* Op went through, interrupt or not... */ - if (req->uc_flags & REQ_WRITE) { + if (req->uc_flags & CODA_REQ_WRITE) { out = (union outputArgs *)req->uc_data; /* here we map positive Venus errors to kernel errors */ error = -out->oh.result; @@ -717,13 +717,13 @@ static int coda_upcall(struct venus_comm *vcp, } error = -EINTR; - if ((req->uc_flags & REQ_ABORT) || !signal_pending(current)) { + if ((req->uc_flags & CODA_REQ_ABORT) || !signal_pending(current)) { printk(KERN_WARNING "coda: Unexpected interruption.\n"); goto exit; } /* Interrupted before venus read it. */ - if (!(req->uc_flags & REQ_READ)) + if (!(req->uc_flags & CODA_REQ_READ)) goto exit; /* Venus saw the upcall, make sure we can send interrupt signal */ @@ -747,7 +747,7 @@ static int coda_upcall(struct venus_comm *vcp, sig_inputArgs->ih.opcode = CODA_SIGNAL; sig_inputArgs->ih.unique = req->uc_unique; - sig_req->uc_flags = REQ_ASYNC; + sig_req->uc_flags = CODA_REQ_ASYNC; sig_req->uc_opcode = sig_inputArgs->ih.opcode; sig_req->uc_unique = sig_inputArgs->ih.unique; sig_req->uc_inSize = sizeof(struct coda_in_hdr); diff --git a/fs/exofs/ios.c b/fs/exofs/ios.c index 4337cad7777..e2732203fa9 100644 --- a/fs/exofs/ios.c +++ b/fs/exofs/ios.c @@ -599,7 +599,7 @@ static int _sbi_write_mirror(struct exofs_io_state *ios, int cur_comp) } else { bio = master_dev->bio; /* FIXME: bio_set_dir() */ - bio->bi_rw |= (1 << BIO_RW); + bio->bi_rw |= REQ_WRITE; } osd_req_write(or, &ios->obj, per_dev->offset, bio, diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index b7c7586caea..2f76c4a081a 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -26,15 +26,9 @@ #include <linux/blkdev.h> #include <linux/backing-dev.h> #include <linux/buffer_head.h> +#include <linux/tracepoint.h> #include "internal.h" -#define inode_to_bdi(inode) ((inode)->i_mapping->backing_dev_info) - -/* - * We don't actually have pdflush, but this one is exported though /proc... - */ -int nr_pdflush_threads; - /* * Passed into wb_writeback(), essentially a subset of writeback_control */ @@ -50,6 +44,21 @@ struct wb_writeback_work { struct completion *done; /* set if the caller waits */ }; +/* + * Include the creation of the trace points after defining the + * wb_writeback_work structure so that the definition remains local to this + * file. + */ +#define CREATE_TRACE_POINTS +#include <trace/events/writeback.h> + +#define inode_to_bdi(inode) ((inode)->i_mapping->backing_dev_info) + +/* + * We don't actually have pdflush, but this one is exported though /proc... + */ +int nr_pdflush_threads; + /** * writeback_in_progress - determine whether there is writeback in progress * @bdi: the device's backing_dev_info structure. @@ -65,22 +74,21 @@ int writeback_in_progress(struct backing_dev_info *bdi) static void bdi_queue_work(struct backing_dev_info *bdi, struct wb_writeback_work *work) { - spin_lock(&bdi->wb_lock); - list_add_tail(&work->list, &bdi->work_list); - spin_unlock(&bdi->wb_lock); + trace_writeback_queue(bdi, work); - /* - * If the default thread isn't there, make sure we add it. When - * it gets created and wakes up, we'll run this work. - */ - if (unlikely(list_empty_careful(&bdi->wb_list))) + spin_lock_bh(&bdi->wb_lock); + list_add_tail(&work->list, &bdi->work_list); + if (bdi->wb.task) { + wake_up_process(bdi->wb.task); + } else { + /* + * The bdi thread isn't there, wake up the forker thread which + * will create and run it. + */ + trace_writeback_nothread(bdi, work); wake_up_process(default_backing_dev_info.wb.task); - else { - struct bdi_writeback *wb = &bdi->wb; - - if (wb->task) - wake_up_process(wb->task); } + spin_unlock_bh(&bdi->wb_lock); } static void @@ -95,8 +103,10 @@ __bdi_start_writeback(struct backing_dev_info *bdi, long nr_pages, */ work = kzalloc(sizeof(*work), GFP_ATOMIC); if (!work) { - if (bdi->wb.task) + if (bdi->wb.task) { + trace_writeback_nowork(bdi); wake_up_process(bdi->wb.task); + } return; } @@ -643,10 +653,14 @@ static long wb_writeback(struct bdi_writeback *wb, wbc.more_io = 0; wbc.nr_to_write = MAX_WRITEBACK_PAGES; wbc.pages_skipped = 0; + + trace_wbc_writeback_start(&wbc, wb->bdi); if (work->sb) __writeback_inodes_sb(work->sb, wb, &wbc); else writeback_inodes_wb(wb, &wbc); + trace_wbc_writeback_written(&wbc, wb->bdi); + work->nr_pages -= MAX_WRITEBACK_PAGES - wbc.nr_to_write; wrote += MAX_WRITEBACK_PAGES - wbc.nr_to_write; @@ -674,6 +688,7 @@ static long wb_writeback(struct bdi_writeback *wb, if (!list_empty(&wb->b_more_io)) { inode = list_entry(wb->b_more_io.prev, struct inode, i_list); + trace_wbc_writeback_wait(&wbc, wb->bdi); inode_wait_for_writeback(inode); } spin_unlock(&inode_lock); @@ -686,17 +701,17 @@ static long wb_writeback(struct bdi_writeback *wb, * Return the next wb_writeback_work struct that hasn't been processed yet. */ static struct wb_writeback_work * -get_next_work_item(struct backing_dev_info *bdi, struct bdi_writeback *wb) +get_next_work_item(struct backing_dev_info *bdi) { struct wb_writeback_work *work = NULL; - spin_lock(&bdi->wb_lock); + spin_lock_bh(&bdi->wb_lock); if (!list_empty(&bdi->work_list)) { work = list_entry(bdi->work_list.next, struct wb_writeback_work, list); list_del_init(&work->list); } - spin_unlock(&bdi->wb_lock); + spin_unlock_bh(&bdi->wb_lock); return work; } @@ -744,7 +759,7 @@ long wb_do_writeback(struct bdi_writeback *wb, int force_wait) struct wb_writeback_work *work; long wrote = 0; - while ((work = get_next_work_item(bdi, wb)) != NULL) { + while ((work = get_next_work_item(bdi)) != NULL) { /* * Override sync mode, in case we must wait for completion * because this thread is exiting now. @@ -752,6 +767,8 @@ long wb_do_writeback(struct bdi_writeback *wb, int force_wait) if (force_wait) work->sync_mode = WB_SYNC_ALL; + trace_writeback_exec(bdi, work); + wrote += wb_writeback(wb, work); /* @@ -776,47 +793,66 @@ long wb_do_writeback(struct bdi_writeback *wb, int force_wait) * Handle writeback of dirty data for the device backed by this bdi. Also * wakes up periodically and does kupdated style flushing. */ -int bdi_writeback_task(struct bdi_writeback *wb) +int bdi_writeback_thread(void *data) { - unsigned long last_active = jiffies; - unsigned long wait_jiffies = -1UL; + struct bdi_writeback *wb = data; + struct backing_dev_info *bdi = wb->bdi; long pages_written; + current->flags |= PF_FLUSHER | PF_SWAPWRITE; + set_freezable(); + wb->last_active = jiffies; + + /* + * Our parent may run at a different priority, just set us to normal + */ + set_user_nice(current, 0); + + trace_writeback_thread_start(bdi); + while (!kthread_should_stop()) { + /* + * Remove own delayed wake-up timer, since we are already awake + * and we'll take care of the preriodic write-back. + */ + del_timer(&wb->wakeup_timer); + pages_written = wb_do_writeback(wb, 0); + trace_writeback_pages_written(pages_written); + if (pages_written) - last_active = jiffies; - else if (wait_jiffies != -1UL) { - unsigned long max_idle; + wb->last_active = jiffies; - /* - * Longest period of inactivity that we tolerate. If we - * see dirty data again later, the task will get - * recreated automatically. - */ - max_idle = max(5UL * 60 * HZ, wait_jiffies); - if (time_after(jiffies, max_idle + last_active)) - break; + set_current_state(TASK_INTERRUPTIBLE); + if (!list_empty(&bdi->work_list)) { + __set_current_state(TASK_RUNNING); + continue; } - if (dirty_writeback_interval) { - wait_jiffies = msecs_to_jiffies(dirty_writeback_interval * 10); - schedule_timeout_interruptible(wait_jiffies); - } else { - set_current_state(TASK_INTERRUPTIBLE); - if (list_empty_careful(&wb->bdi->work_list) && - !kthread_should_stop()) - schedule(); - __set_current_state(TASK_RUNNING); + if (wb_has_dirty_io(wb) && dirty_writeback_interval) + schedule_timeout(msecs_to_jiffies(dirty_writeback_interval * 10)); + else { + /* + * We have nothing to do, so can go sleep without any + * timeout and save power. When a work is queued or + * something is made dirty - we will be woken up. + */ + schedule(); } try_to_freeze(); } + /* Flush any work that raced with us exiting */ + if (!list_empty(&bdi->work_list)) + wb_do_writeback(wb, 1); + + trace_writeback_thread_stop(bdi); return 0; } + /* * Start writeback of `nr_pages' pages. If `nr_pages' is zero, write back * the whole world. @@ -891,6 +927,8 @@ static noinline void block_dump___mark_inode_dirty(struct inode *inode) void __mark_inode_dirty(struct inode *inode, int flags) { struct super_block *sb = inode->i_sb; + struct backing_dev_info *bdi = NULL; + bool wakeup_bdi = false; /* * Don't do this for I_DIRTY_PAGES - that doesn't actually @@ -944,22 +982,31 @@ void __mark_inode_dirty(struct inode *inode, int flags) * reposition it (that would break b_dirty time-ordering). */ if (!was_dirty) { - struct bdi_writeback *wb = &inode_to_bdi(inode)->wb; - struct backing_dev_info *bdi = wb->bdi; - - if (bdi_cap_writeback_dirty(bdi) && - !test_bit(BDI_registered, &bdi->state)) { - WARN_ON(1); - printk(KERN_ERR "bdi-%s not registered\n", - bdi->name); + bdi = inode_to_bdi(inode); + + if (bdi_cap_writeback_dirty(bdi)) { + WARN(!test_bit(BDI_registered, &bdi->state), + "bdi-%s not registered\n", bdi->name); + + /* + * If this is the first dirty inode for this + * bdi, we have to wake-up the corresponding + * bdi thread to make sure background + * write-back happens later. + */ + if (!wb_has_dirty_io(&bdi->wb)) + wakeup_bdi = true; } inode->dirtied_when = jiffies; - list_move(&inode->i_list, &wb->b_dirty); + list_move(&inode->i_list, &bdi->wb.b_dirty); } } out: spin_unlock(&inode_lock); + + if (wakeup_bdi) + bdi_wakeup_thread_delayed(bdi); } EXPORT_SYMBOL(__mark_inode_dirty); diff --git a/fs/gfs2/log.c b/fs/gfs2/log.c index 6a857e24f94..cde1248a622 100644 --- a/fs/gfs2/log.c +++ b/fs/gfs2/log.c @@ -595,7 +595,7 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull) if (test_bit(SDF_NOBARRIERS, &sdp->sd_flags)) goto skip_barrier; get_bh(bh); - submit_bh(WRITE_SYNC | (1 << BIO_RW_BARRIER) | (1 << BIO_RW_META), bh); + submit_bh(WRITE_BARRIER | REQ_META, bh); wait_on_buffer(bh); if (buffer_eopnotsupp(bh)) { clear_buffer_eopnotsupp(bh); @@ -605,7 +605,7 @@ static void log_write_header(struct gfs2_sbd *sdp, u32 flags, int pull) lock_buffer(bh); skip_barrier: get_bh(bh); - submit_bh(WRITE_SYNC | (1 << BIO_RW_META), bh); + submit_bh(WRITE_SYNC | REQ_META, bh); wait_on_buffer(bh); } if (!buffer_uptodate(bh)) diff --git a/fs/gfs2/meta_io.c b/fs/gfs2/meta_io.c index 18176d0b75d..f3b071f921a 100644 --- a/fs/gfs2/meta_io.c +++ b/fs/gfs2/meta_io.c @@ -36,8 +36,8 @@ static int gfs2_aspace_writepage(struct page *page, struct writeback_control *wb { struct buffer_head *bh, *head; int nr_underway = 0; - int write_op = (1 << BIO_RW_META) | ((wbc->sync_mode == WB_SYNC_ALL ? - WRITE_SYNC_PLUG : WRITE)); + int write_op = REQ_META | + (wbc->sync_mode == WB_SYNC_ALL ? WRITE_SYNC_PLUG : WRITE); BUG_ON(!PageLocked(page)); BUG_ON(!page_has_buffers(page)); @@ -225,7 +225,7 @@ int gfs2_meta_read(struct gfs2_glock *gl, u64 blkno, int flags, } bh->b_end_io = end_buffer_read_sync; get_bh(bh); - submit_bh(READ_SYNC | (1 << BIO_RW_META), bh); + submit_bh(READ_SYNC | REQ_META, bh); if (!(flags & DIO_WAIT)) return 0; @@ -432,7 +432,7 @@ struct buffer_head *gfs2_meta_ra(struct gfs2_glock *gl, u64 dblock, u32 extlen) if (buffer_uptodate(first_bh)) goto out; if (!buffer_locked(first_bh)) - ll_rw_block(READ_SYNC | (1 << BIO_RW_META), 1, &first_bh); + ll_rw_block(READ_SYNC | REQ_META, 1, &first_bh); dblock++; extlen--; diff --git a/fs/gfs2/ops_fstype.c b/fs/gfs2/ops_fstype.c index 4f44bdeb2f0..4d4b1e8ac64 100644 --- a/fs/gfs2/ops_fstype.c +++ b/fs/gfs2/ops_fstype.c @@ -274,7 +274,7 @@ static int gfs2_read_super(struct gfs2_sbd *sdp, sector_t sector) bio->bi_end_io = end_bio_io_page; bio->bi_private = page; - submit_bio(READ_SYNC | (1 << BIO_RW_META), bio); + submit_bio(READ_SYNC | REQ_META, bio); wait_on_page_locked(page); bio_put(bio); if (!PageUptodate(page)) { diff --git a/fs/nilfs2/segbuf.c b/fs/nilfs2/segbuf.c index 2e6a2723b8f..4588fb9e93d 100644 --- a/fs/nilfs2/segbuf.c +++ b/fs/nilfs2/segbuf.c @@ -508,7 +508,7 @@ static int nilfs_segbuf_write(struct nilfs_segment_buffer *segbuf, * Last BIO is always sent through the following * submission. */ - rw |= (1 << BIO_RW_SYNCIO) | (1 << BIO_RW_UNPLUG); + rw |= REQ_SYNC | REQ_UNPLUG; res = nilfs_segbuf_submit_bio(segbuf, &wi, rw); } diff --git a/fs/splice.c b/fs/splice.c index efdbfece993..8f1dfaecc8f 100644 --- a/fs/splice.c +++ b/fs/splice.c @@ -399,17 +399,7 @@ __generic_file_splice_read(struct file *in, loff_t *ppos, * If the page isn't uptodate, we may need to start io on it */ if (!PageUptodate(page)) { - /* - * If in nonblock mode then dont block on waiting - * for an in-flight io page - */ - if (flags & SPLICE_F_NONBLOCK) { - if (!trylock_page(page)) { - error = -EAGAIN; - break; - } - } else - lock_page(page); + lock_page(page); /* * Page was truncated, or invalidated by the @@ -597,7 +587,6 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos, struct page *pages[PIPE_DEF_BUFFERS]; struct partial_page partial[PIPE_DEF_BUFFERS]; struct iovec *vec, __vec[PIPE_DEF_BUFFERS]; - pgoff_t index; ssize_t res; size_t this_len; int error; @@ -621,7 +610,6 @@ ssize_t default_file_splice_read(struct file *in, loff_t *ppos, goto shrink_ret; } - index = *ppos >> PAGE_CACHE_SHIFT; offset = *ppos & ~PAGE_CACHE_MASK; nr_pages = (len + offset + PAGE_CACHE_SIZE - 1) >> PAGE_CACHE_SHIFT; |