A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 18:51:56 -04:00
Code Issues Projects Releases Packages Wiki Activity

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

Browse source 
Pull block layer fixes from Jens Axboe:
 "Final small batch of fixes to be included before -rc1.  Some general
  cleanups in here as well, but some of the blk-mq fixes we need for the
  NVMe conversion and/or scsi-mq.  The pull request contains:

   - Support for not merging across a specified "chunk size", if set by
     the driver.  Some NVMe devices perform poorly for IO that crosses
     such a chunk, so we need to support it generically as part of
     request merging avoid having to do complicated split logic.  From
     me.

   - Bump max tag depth to 10Ki tags.  Some scsi devices have a huge
     shared tag space.  Before we failed with EINVAL if a too large tag
     depth was specified, now we truncate it and pass back the actual
     value.  From me.

   - Various blk-mq rq init fixes from me and others.

   - A fix for enter on a dying queue for blk-mq from Keith.  This is
     needed to prevent oopsing on hot device removal.

   - Fixup for blk-mq timer addition from Ming Lei.

   - Small round of performance fixes for mtip32xx from Sam Bradshaw.

   - Minor stack leak fix from Rickard Strandqvist.

   - Two __init annotations from Fabian Frederick"

* 'for-linus' of git://git.kernel.dk/linux-block:
  block: add __init to blkcg_policy_register
  block: add __init to elv_register
  block: ensure that bio_add_page() always accepts a page for an empty bio
  blk-mq: add timer in blk_mq_start_request
  blk-mq: always initialize request->start_time
  block: blk-exec.c: Cleaning up local variable address returnd
  mtip32xx: minor performance enhancements
  blk-mq: ->timeout should be cleared in blk_mq_rq_ctx_init()
  blk-mq: don't allow queue entering for a dying queue
  blk-mq: bump max tag depth to 10K tags
  block: add blk_rq_set_block_pc()
  block: add notion of a chunk size for request merging
This commit is contained in:
Linus Torvalds 2014-06-11 08:41:17 -07:00
commit 23d4ed53b7
28 changed files with 135 additions and 60 deletions
Download patch file Download diff file Expand all files Collapse all files

15
drivers/block/mtip32xx/mtip32xx.c
View file

@ -39,6 +39,7 @@
#include <../drivers/ata/ahci.h>
#include <linux/export.h>
#include <linux/debugfs.h>
#include <linux/prefetch.h>
#include "mtip32xx.h"
#define HW_CMD_SLOT_SZ (MTIP_MAX_COMMAND_SLOTS * 32)
@ -2380,6 +2381,8 @@ static void mtip_hw_submit_io(struct driver_data *dd, struct request *rq,
/* Map the scatter list for DMA access */
nents = dma_map_sg(&dd->pdev->dev, command->sg, nents, dma_dir);
prefetch(&port->flags);
command->scatter_ents = nents;
/*
@ -2392,7 +2395,7 @@ static void mtip_hw_submit_io(struct driver_data *dd, struct request *rq,
fis = command->command;
fis->type = 0x27;
fis->opts = 1 << 7;
if (rq_data_dir(rq) == READ)
if (dma_dir == DMA_FROM_DEVICE)
fis->command = ATA_CMD_FPDMA_READ;
else
fis->command = ATA_CMD_FPDMA_WRITE;
@ -2412,7 +2415,7 @@ static void mtip_hw_submit_io(struct driver_data *dd, struct request *rq,
fis->res3 = 0;
fill_command_sg(dd, command, nents);
if (command->unaligned)
if (unlikely(command->unaligned))
fis->device |= 1 << 7;
/* Populate the command header */
@ -2433,7 +2436,7 @@ static void mtip_hw_submit_io(struct driver_data *dd, struct request *rq,
* To prevent this command from being issued
* if an internal command is in progress or error handling is active.
*/
if (port->flags & MTIP_PF_PAUSE_IO) {
if (unlikely(port->flags & MTIP_PF_PAUSE_IO)) {
set_bit(rq->tag, port->cmds_to_issue);
set_bit(MTIP_PF_ISSUE_CMDS_BIT, &port->flags);
return;
@ -3754,7 +3757,7 @@ static bool mtip_check_unal_depth(struct blk_mq_hw_ctx *hctx,
struct driver_data *dd = hctx->queue->queuedata;
struct mtip_cmd *cmd = blk_mq_rq_to_pdu(rq);
if (!dd->unal_qdepth || rq_data_dir(rq) == READ)
if (rq_data_dir(rq) == READ || !dd->unal_qdepth)
return false;
/*
@ -3776,11 +3779,11 @@ static int mtip_queue_rq(struct blk_mq_hw_ctx *hctx, struct request *rq)
{
int ret;
if (mtip_check_unal_depth(hctx, rq))
if (unlikely(mtip_check_unal_depth(hctx, rq)))
return BLK_MQ_RQ_QUEUE_BUSY;
ret = mtip_submit_request(hctx, rq);
if (!ret)
if (likely(!ret))
return BLK_MQ_RQ_QUEUE_OK;
rq->errors = ret;

8
drivers/block/mtip32xx/mtip32xx.h
View file

@ -493,19 +493,19 @@ struct driver_data {
struct workqueue_struct *isr_workq;
struct mtip_work work[MTIP_MAX_SLOT_GROUPS];
atomic_t irq_workers_active;
struct mtip_work work[MTIP_MAX_SLOT_GROUPS];
int isr_binding;
struct block_device *bdev;
int unal_qdepth; /* qdepth of unaligned IO queue */
struct list_head online_list; /* linkage for online list */
struct list_head remove_list; /* linkage for removing list */
int unal_qdepth; /* qdepth of unaligned IO queue */
};
#endif

2
drivers/block/pktcdvd.c
View file

@ -704,6 +704,7 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command *
rq = blk_get_request(q, (cgc->data_direction == CGC_DATA_WRITE) ?
WRITE : READ, __GFP_WAIT);
blk_rq_set_block_pc(rq);
if (cgc->buflen) {
ret = blk_rq_map_kern(q, rq, cgc->buffer, cgc->buflen,
@ -716,7 +717,6 @@ static int pkt_generic_packet(struct pktcdvd_device *pd, struct packet_command *
memcpy(rq->cmd, cgc->cmd, CDROM_PACKET_SIZE);
rq->timeout = 60*HZ;
rq->cmd_type = REQ_TYPE_BLOCK_PC;
if (cgc->quiet)
rq->cmd_flags |= REQ_QUIET;