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Merge branch 'for-2.6.32' of git://git.kernel.dk/linux-2.6-block

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* 'for-2.6.32' of git://git.kernel.dk/linux-2.6-block: (29 commits)
  block: use blkdev_issue_discard in blk_ioctl_discard
  Make DISCARD_BARRIER and DISCARD_NOBARRIER writes instead of reads
  block: don't assume device has a request list backing in nr_requests store
  block: Optimal I/O limit wrapper
  cfq: choose a new next_req when a request is dispatched
  Seperate read and write statistics of in_flight requests
  aoe: end barrier bios with EOPNOTSUPP
  block: trace bio queueing trial only when it occurs
  block: enable rq CPU completion affinity by default
  cfq: fix the log message after dispatched a request
  block: use printk_once
  cciss: memory leak in cciss_init_one()
  splice: update mtime and atime on files
  block: make blk_iopoll_prep_sched() follow normal 0/1 return convention
  cfq-iosched: get rid of must_alloc flag
  block: use interrupts disabled version of raise_softirq_irqoff()
  block: fix comment in blk-iopoll.c
  block: adjust default budget for blk-iopoll
  block: fix long lines in block/blk-iopoll.c
  block: add blk-iopoll, a NAPI like approach for block devices
  ...
This commit is contained in:
Linus Torvalds 2009-09-14 17:55:15 -07:00
commit 355bbd8cb8
42 changed files with 729 additions and 284 deletions
Download patch file Download diff file Expand all files Collapse all files

3
fs/btrfs/extent-tree.c
View file

@ -1511,7 +1511,8 @@ static int remove_extent_backref(struct btrfs_trans_handle *trans,
static void btrfs_issue_discard(struct block_device *bdev,
u64 start, u64 len)
{
blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL);
blkdev_issue_discard(bdev, start >> 9, len >> 9, GFP_KERNEL,
DISCARD_FL_BARRIER);
}
#endif

4
fs/btrfs/volumes.c
View file

@ -260,7 +260,7 @@ loop_lock:
num_run++;
batch_run++;
if (bio_sync(cur))
if (bio_rw_flagged(cur, BIO_RW_SYNCIO))
num_sync_run++;
if (need_resched()) {
@ -2903,7 +2903,7 @@ static noinline int schedule_bio(struct btrfs_root *root,
bio->bi_rw |= rw;
spin_lock(&device->io_lock);
if (bio_sync(bio))
if (bio_rw_flagged(bio, BIO_RW_SYNCIO))
pending_bios = &device->pending_sync_bios;
else
pending_bios = &device->pending_bios;

6
fs/gfs2/rgrp.c
View file

@ -857,7 +857,8 @@ static void gfs2_rgrp_send_discards(struct gfs2_sbd *sdp, u64 offset,
goto start_new_extent;
if ((start + nr_sects) != blk) {
rv = blkdev_issue_discard(bdev, start,
nr_sects, GFP_NOFS);
nr_sects, GFP_NOFS,
DISCARD_FL_BARRIER);
if (rv)
goto fail;
nr_sects = 0;
@ -871,7 +872,8 @@ start_new_extent:
}
}
if (nr_sects) {
rv = blkdev_issue_discard(bdev, start, nr_sects, GFP_NOFS);
rv = blkdev_issue_discard(bdev, start, nr_sects, GFP_NOFS,
DISCARD_FL_BARRIER);
if (rv)
goto fail;
}

12
fs/partitions/check.c
View file

@ -248,11 +248,19 @@ ssize_t part_stat_show(struct device *dev,
part_stat_read(p, merges[WRITE]),
(unsigned long long)part_stat_read(p, sectors[WRITE]),
jiffies_to_msecs(part_stat_read(p, ticks[WRITE])),
p->in_flight,
part_in_flight(p),
jiffies_to_msecs(part_stat_read(p, io_ticks)),
jiffies_to_msecs(part_stat_read(p, time_in_queue)));
}
ssize_t part_inflight_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct hd_struct *p = dev_to_part(dev);
return sprintf(buf, "%8u %8u\n", p->in_flight[0], p->in_flight[1]);
}
#ifdef CONFIG_FAIL_MAKE_REQUEST
ssize_t part_fail_show(struct device *dev,
struct device_attribute *attr, char *buf)
@ -281,6 +289,7 @@ static DEVICE_ATTR(start, S_IRUGO, part_start_show, NULL);
static DEVICE_ATTR(size, S_IRUGO, part_size_show, NULL);
static DEVICE_ATTR(alignment_offset, S_IRUGO, part_alignment_offset_show, NULL);
static DEVICE_ATTR(stat, S_IRUGO, part_stat_show, NULL);
static DEVICE_ATTR(inflight, S_IRUGO, part_inflight_show, NULL);
#ifdef CONFIG_FAIL_MAKE_REQUEST
static struct device_attribute dev_attr_fail =
__ATTR(make-it-fail, S_IRUGO|S_IWUSR, part_fail_show, part_fail_store);
@ -292,6 +301,7 @@ static struct attribute *part_attrs[] = {
&dev_attr_size.attr,
&dev_attr_alignment_offset.attr,
&dev_attr_stat.attr,
&dev_attr_inflight.attr,
#ifdef CONFIG_FAIL_MAKE_REQUEST
&dev_attr_fail.attr,
#endif

8
fs/splice.c
View file

@ -502,8 +502,10 @@ ssize_t generic_file_splice_read(struct file *in, loff_t *ppos,
len = left;
ret = __generic_file_splice_read(in, ppos, pipe, len, flags);
if (ret > 0)
if (ret > 0) {
*ppos += ret;
file_accessed(in);
}
return ret;
}
@ -963,8 +965,10 @@ generic_file_splice_write(struct pipe_inode_info *pipe, struct file *out,
mutex_lock_nested(&inode->i_mutex, I_MUTEX_CHILD);
ret = file_remove_suid(out);
if (!ret)
if (!ret) {
file_update_time(out);
ret = splice_from_pipe_feed(pipe, &sd, pipe_to_file);
}
mutex_unlock(&inode->i_mutex);
} while (ret > 0);
splice_from_pipe_end(pipe, &sd);