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hello, Chris In the next several months, I will have a lot of spare time. I will be happy if you assign some work to me. I have learn linux kernel for years but only fix a few small bugs in IP stack. In the past few months, I read some EXT4/VFS codes. I began reading source of btrfs ten days ago and have read it twice now. Regards YZ

...e void blk_add_trace_remap(s { struct blk_trace *bt = q->blk_trace; struct blk_io_trace_remap r; + unsigned short ioprio = bio_get_ioprio(bio); if (likely(!bt)) return; @@ -310,7 +317,7 @@ static inline void blk_add_trace_remap(s r.device_from = cpu_to_be32(bio->bi_bdev->bd_dev); r.sector = cpu_to_be64(to); - __blk_add_trace(bt, from, bio->bi_size, bio->bi_rw, BLK_TA_REMAP, !bio_flagged(bio, BIO_UPTODATE), sizeof(r), &r); + __blk_add_trace(bt, from, bio->bi_size, bio->bi_rw, BLK_TA_REMAP, !bio_flagged(bio, BIO_UPTODATE), ioprio, sizeof(r), &r); }...

...nr_sector ) + __field( char, rw ) + ), + + TP_fast_assign( + __assign_str(g_name, gp->c_banddev->g_name); + __entry->c_id = gp->c_id; + __entry->g_blocked = gp->c_banddev->g_blocked; + __entry->c_blocked = gp->c_blocked; + __entry->dev = bio->bi_bdev->bd_dev; + __entry->sector = bio->bi_sector; + __entry->nr_sector = bio->bi_size >> 9; + __entry->rw = (bio_data_dir(bio) == READ) ? 'R' : 'W'; + ), + + TP_printk("%s,%d: %d,%d %c %llu + %u %d %d", + __get_str(g_name), __entry->c_id, + MAJOR(__ent...

...nr_sector ) + __field( char, rw ) + ), + + TP_fast_assign( + __assign_str(g_name, gp->c_banddev->g_name); + __entry->c_id = gp->c_id; + __entry->g_blocked = gp->c_banddev->g_blocked; + __entry->c_blocked = gp->c_blocked; + __entry->dev = bio->bi_bdev->bd_dev; + __entry->sector = bio->bi_sector; + __entry->nr_sector = bio->bi_size >> 9; + __entry->rw = (bio_data_dir(bio) == READ) ? 'R' : 'W'; + ), + + TP_printk("%s,%d: %d,%d %c %llu + %u %d %d", + __get_str(g_name), __entry->c_id, + MAJOR(__ent...

...nr_sector ) + __field( char, rw ) + ), + + TP_fast_assign( + __assign_str(g_name, gp->c_banddev->g_name); + __entry->c_id = gp->c_id; + __entry->g_blocked = gp->c_banddev->g_blocked; + __entry->c_blocked = gp->c_blocked; + __entry->dev = bio->bi_bdev->bd_dev; + __entry->sector = bio->bi_sector; + __entry->nr_sector = bio->bi_size >> 9; + __entry->rw = (bio_data_dir(bio) == READ) ? 'R' : 'W'; + ), + + TP_printk("%s,%d: %d,%d %c %llu + %u %d %d", + __get_str(g_name), __entry->c_id, + MAJOR(__ent...

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major changes of these releases are: - dm-ioband can be configured through the cgroup interface. The bandwidth can be assigned on a per cgroup per block device basis. - The event tracing is supported that helps in debugging and monitoring dm-ioband. - A document for blkio-cgroup is available at

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major changes of these releases are: - dm-ioband can be configured through the cgroup interface. The bandwidth can be assigned on a per cgroup per block device basis. - The event tracing is supported that helps in debugging and monitoring dm-ioband. - A document for blkio-cgroup is available at

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major changes of these releases are: - dm-ioband can be configured through the cgroup interface. The bandwidth can be assigned on a per cgroup per block device basis. - The event tracing is supported that helps in debugging and monitoring dm-ioband. - A document for blkio-cgroup is available at

It's both in 2.6 and recent 2.6 (for RH ASS2.1 you'll probably need to copy the latest 2.4 defintion, but I don't care for obsolete junk). Index: src/super.c =================================================================== --- src/super.c (revision 1014) +++ src/super.c (working copy) @@ -799,7 +799,7 @@ /* get first two blocks */ for (i=0; i<2; i++) { - bhs[i] = getblk

...nr_sector ) + __field( char, rw ) + ), + + TP_fast_assign( + __assign_str(g_name, gp->c_banddev->g_name); + __entry->c_id = gp->c_id; + __entry->g_blocked = gp->c_banddev->g_blocked; + __entry->c_blocked = gp->c_blocked; + __entry->dev = bio->bi_bdev->bd_dev; + __entry->sector = bio->bi_sector; + __entry->nr_sector = bio->bi_size >> 9; + __entry->rw = (bio_data_dir(bio) == READ) ? 'R' : 'W'; + ), + + TP_printk("%s,%d: %d,%d %c %llu + %u %d %d", + __get_str(g_name), __entry->c_id, + MAJOR(__ent...

...nr_sector ) + __field( char, rw ) + ), + + TP_fast_assign( + __assign_str(g_name, gp->c_banddev->g_name); + __entry->c_id = gp->c_id; + __entry->g_blocked = gp->c_banddev->g_blocked; + __entry->c_blocked = gp->c_blocked; + __entry->dev = bio->bi_bdev->bd_dev; + __entry->sector = bio->bi_sector; + __entry->nr_sector = bio->bi_size >> 9; + __entry->rw = (bio_data_dir(bio) == READ) ? 'R' : 'W'; + ), + + TP_printk("%s,%d: %d,%d %c %llu + %u %d %d", + __get_str(g_name), __entry->c_id, + MAJOR(__ent...

...nr_sector ) + __field( char, rw ) + ), + + TP_fast_assign( + __assign_str(g_name, gp->c_banddev->g_name); + __entry->c_id = gp->c_id; + __entry->g_blocked = gp->c_banddev->g_blocked; + __entry->c_blocked = gp->c_blocked; + __entry->dev = bio->bi_bdev->bd_dev; + __entry->sector = bio->bi_sector; + __entry->nr_sector = bio->bi_size >> 9; + __entry->rw = (bio_data_dir(bio) == READ) ? 'R' : 'W'; + ), + + TP_printk("%s,%d: %d,%d %c %llu + %u %d %d", + __get_str(g_name), __entry->c_id, + MAJOR(__ent...

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major change of these releases is that a hierarchical configuration is supported, a parent cgroup's bandwidth is distributed to its children. The hierarchical configuration is available when using dm-ioband and blkio-cgroup together. Please refer to the documentation included in this series of patches on how to use it. The

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major change of these releases is that a hierarchical configuration is supported, a parent cgroup's bandwidth is distributed to its children. The hierarchical configuration is available when using dm-ioband and blkio-cgroup together. Please refer to the documentation included in this series of patches on how to use it. The

Hi all, These are new releases of dm-ioband and blkio-cgroup. The major change of these releases is that a hierarchical configuration is supported, a parent cgroup's bandwidth is distributed to its children. The hierarchical configuration is available when using dm-ioband and blkio-cgroup together. Please refer to the documentation included in this series of patches on how to use it. The

Hi Jens, this series removes the revalidate_disk() function, which has been a really odd duck in the last years. The prime reason why most people use it is because it propagates a size change from the gendisk to the block_device structure. But it also calls into the rather ill defined ->revalidate_disk method which is rather useless for the callers. So this adds a new helper to just

...M; + goto out; + } + + dest = kzalloc(alloc_size, GFP_NOFS); + if (!dest) { + ret = -ENOMEM; + goto out; + } + + devices = &root->fs_info->fs_devices->devices; + + list_for_each_entry(device, devices, dev_list) { + dest[di_args.num_devices] = + huge_encode_dev(device->bdev->bd_dev); + di_args.num_devices++; + } + + user_dest = (u64 *) + (arg + sizeof(struct btrfs_ioctl_disk_info_args)); + + if (copy_to_user(user_dest, dest, alloc_size)) + ret = -EFAULT; +out: + mutex_unlock(&root->fs_info->fs_devices->device_list_mutex); + if (ret == 0 && copy_to_user...

This version fixes three bugs in the 2nd patch of this series that caused kernel BUG when the system was under race. We weren't accounting with t_oustanding_credits correctly, and there were race conditions caused by the fact the I had overlooked the fact that __jbd2_log_wait_for_space() and jbd2_get_transaction() requires j_state_lock to be write locked. Theodore Ts'o (3): jbd2: Use

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.

Greetings, after Carsten pitched CMM2 on the kvm mini summit here is a repost of version 5 of the guest page hinting patches. The code is still the same but has been adapted to the latest git level. -- blue skies, Martin. "Reality continues to ruin my life." - Calvin.