kernel/linux.git/include/linux/blkdev.h, branch linux-2.6.18.y

[PATCH] Rearrange a few struct request members

2006-06-23T15:10:39+00:00

This saves 8 bytes of data in 64-bit archs. Signed-off-by: Jens Axboe

[PATCH] Get rid of struct request request_pm_state member

2006-06-23T15:10:39+00:00

The IDE power management can just use the ->end_io_data member to store it's data. Signed-off-by: Jens Axboe

[PATCH] Kill PF_SYNCWRITE flag

2006-06-23T15:10:39+00:00

A process flag to indicate whether we are doing sync io is incredibly ugly. It also causes performance problems when one does a lot of async io and then proceeds to sync it. Part of the io will go out as async, and the other part as sync. This causes a disconnect between the previously submitted io and the synced io. For io schedulers such as CFQ, this will cause us lost merges and suboptimal behaviour in scheduling. Remove PF_SYNCWRITE completely from the fsync/msync paths, and let the O_DIRECT path just directly indicate that the writes are sync by using WRITE_SYNC instead. Signed-off-by: Jens Axboe

Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

2006-06-21T18:18:25+00:00

* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (85 commits) [SCSI] 53c700: remove reliance on deprecated cmnd fields [SCSI] hptiop: don't use cmnd->bufflen [SCSI] hptiop: HighPoint RocketRAID 3xxx controller driver [SCSI] aacraid: small misc. cleanups [SCSI] aacraid: Update supported product information [SCSI] aacraid: Fix return code interpretation [SCSI] scsi_transport_sas: fix panic in sas_free_rphy [SCSI] remove RQ_SCSI_* flags [SCSI] remove scsi_request infrastructure [SCSI] mptfusion: change driver revision to 3.03.10 [SCSI] mptfc: abort of board reset leaves port dead requiring reboot [SCSI] mptfc: fix fibre channel infinite request/response loop [SCSI] mptfc: set fibre channel fw target missing timers to one second [SCSI] mptfusion: move fc event/reset handling to mptfc [SCSI] spi transport: don't allow dt to be set on SE or HVD buses [SCSI] aic7xxx: expose the bus setting to sysfs [SCSI] scsi: remove Documentation/scsi/cpqfc.txt [SCSI] drivers/scsi: Use ARRAY_SIZE macro [SCSI] Remove last page_address from dc395x.c [SCSI] hptiop: HighPoint RocketRAID 3xxx controller driver ... Fixed up conflicts in drivers/message/fusion/mptbase.c manually (due to the sparc interrupt cleanups)

[SCSI] remove RQ_SCSI_* flags

2006-06-10T21:25:21+00:00

The RQ_SCSI_* flags are a vestiage of a long past history. The EH code still sets them but we never make use of that information. The other users is pluto.c which never had a chance to work but needs to be kept compiling to keep Davem happy, so copy over the definition there. We could probably get rid of RQ_ACTIVE/RQ_INACTIVE aswell with some work, there's only two more or less bogus looking uses in ubd and scsi. Signed-off-by: Christoph Hellwig Signed-off-by: James Bottomley

Don't include linux/config.h from anywhere else in include/

2006-04-26T11:56:16+00:00

Signed-off-by: David Woodhouse

[SCSI] unify SCSI_IOCTL_SEND_COMMAND implementations

2006-04-13T15:13:15+00:00

We currently have two implementations of this obsolete ioctl, one in the block layer and one in the scsi code. Both of them have drawbacks. This patch kills the scsi layer version after updating the block version with the missing bits: - argument checking - use scatterlist I/O - set number of retries based on the submitted command This is the last user of non-S/G I/O except for the gdth driver, so getting this in ASAP and through the scsi tree would be nie to kill the non-S/G I/O path. Jens, what do you think about adding a check for non-S/G I/O in the midlayer? Thanks to Or Gerlitz for testing this patch. Signed-off-by: Christoph Hellwig Signed-off-by: James Bottomley

[BLOCK] cfq-iosched: seek and async performance fixes

2006-03-28T11:03:44+00:00

Detect whether a given process is seeky and if so disable (mostly) the idle window if it is. We still allow just a little idle time, just enough to allow that process to submit a new request. That is needed to maintain fairness across priority groups. In some cases, we could setup several async queues. This is not optimal from a performance POV, since we want all async io in one queue to perform good sorting on it. It also impacted sync queues, as async io got too much slice time. Signed-off-by: Jens Axboe

[PATCH] [BLOCK] cfq-iosched: change cfq io context linking from list to tree

2006-03-28T06:59:01+00:00

On setups with many disks, we spend a considerable amount of time looking up the process-disk mapping on each queue of io. Testing with a NULL based block driver, this costs 40-50% reduction in throughput for 1000 disks. Signed-off-by: Jens Axboe

[PATCH] Block queue IO tracing support (blktrace) as of 2006-03-23

2006-03-23T19:00:26+00:00

Signed-off-by: Jens Axboe