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-rw-r--r--fs/bio.c5
-rw-r--r--fs/block_dev.c10
-rw-r--r--fs/btrfs/disk-io.c8
-rw-r--r--fs/btrfs/inode.c6
-rw-r--r--fs/btrfs/volumes.c18
-rw-r--r--fs/coda/psdev.c12
-rw-r--r--fs/coda/upcall.c12
-rw-r--r--fs/exofs/ios.c2
-rw-r--r--fs/fs-writeback.c161
-rw-r--r--fs/gfs2/log.c4
-rw-r--r--fs/gfs2/meta_io.c8
-rw-r--r--fs/gfs2/ops_fstype.c2
-rw-r--r--fs/nilfs2/segbuf.c2
-rw-r--r--fs/splice.c14
14 files changed, 147 insertions, 117 deletions
diff --git a/fs/bio.c b/fs/bio.c
index e7bf6ca..8abb2df 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -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 451afbd..6641146 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 34f7c37..64f1008 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 8976c33..c038644 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 d6e3af8..dd318ff 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 66b9cf7..de89645 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 f09c5ed..b8893ab 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 4337cad..e273220 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 b7c7586..2f76c4a 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 6a857e24..cde1248 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 18176d0..f3b071f 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 4f44bde..4d4b1e8 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 2e6a272..4588fb9 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 efdbfec..8f1dfae 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;
generated by cgit v1.1 at 2024-12-25 21:36:30 +0000