diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/block/skd_main.c | 21 | ||||
-rw-r--r-- | drivers/input/serio/i8042-x86ia64io.h | 7 | ||||
-rw-r--r-- | drivers/md/bcache/bcache.h | 1 | ||||
-rw-r--r-- | drivers/md/bcache/super.c | 7 | ||||
-rw-r--r-- | drivers/md/bcache/sysfs.c | 4 | ||||
-rw-r--r-- | drivers/md/bcache/util.c | 50 | ||||
-rw-r--r-- | drivers/md/bcache/writeback.c | 20 | ||||
-rw-r--r-- | drivers/md/bcache/writeback.h | 21 | ||||
-rw-r--r-- | drivers/md/bitmap.c | 5 | ||||
-rw-r--r-- | drivers/media/usb/uvc/uvc_ctrl.c | 7 | ||||
-rw-r--r-- | drivers/media/v4l2-core/v4l2-compat-ioctl32.c | 3 | ||||
-rw-r--r-- | drivers/net/ethernet/qlogic/qlge/qlge_dbg.c | 2 | ||||
-rw-r--r-- | drivers/net/phy/phy.c | 3 | ||||
-rw-r--r-- | drivers/pci/hotplug/shpchp_hpc.c | 2 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_dbf.c | 23 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_dbf.h | 10 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_fc.h | 6 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_fsf.c | 3 | ||||
-rw-r--r-- | drivers/s390/scsi/zfcp_scsi.c | 8 | ||||
-rw-r--r-- | drivers/scsi/qla2xxx/qla_attr.c | 8 | ||||
-rw-r--r-- | drivers/scsi/sg.c | 169 | ||||
-rw-r--r-- | drivers/usb/musb/musb_host.c | 1 |
22 files changed, 233 insertions, 148 deletions
diff --git a/drivers/block/skd_main.c b/drivers/block/skd_main.c index 1e46eb2305c0..f928e698f659 100644 --- a/drivers/block/skd_main.c +++ b/drivers/block/skd_main.c @@ -2214,6 +2214,9 @@ static void skd_send_fitmsg(struct skd_device *skdev, */ qcmd |= FIT_QCMD_MSGSIZE_64; + /* Make sure skd_msg_buf is written before the doorbell is triggered. */ + smp_wmb(); + SKD_WRITEQ(skdev, qcmd, FIT_Q_COMMAND); } @@ -2260,6 +2263,9 @@ static void skd_send_special_fitmsg(struct skd_device *skdev, qcmd = skspcl->mb_dma_address; qcmd |= FIT_QCMD_QID_NORMAL + FIT_QCMD_MSGSIZE_128; + /* Make sure skd_msg_buf is written before the doorbell is triggered. */ + smp_wmb(); + SKD_WRITEQ(skdev, qcmd, FIT_Q_COMMAND); } @@ -4679,15 +4685,16 @@ static void skd_free_disk(struct skd_device *skdev) { struct gendisk *disk = skdev->disk; - if (disk != NULL) { - struct request_queue *q = disk->queue; + if (disk && (disk->flags & GENHD_FL_UP)) + del_gendisk(disk); - if (disk->flags & GENHD_FL_UP) - del_gendisk(disk); - if (q) - blk_cleanup_queue(q); - put_disk(disk); + if (skdev->queue) { + blk_cleanup_queue(skdev->queue); + skdev->queue = NULL; + disk->queue = NULL; } + + put_disk(disk); skdev->disk = NULL; } diff --git a/drivers/input/serio/i8042-x86ia64io.h b/drivers/input/serio/i8042-x86ia64io.h index 160b705869f3..3f9ad6414c1b 100644 --- a/drivers/input/serio/i8042-x86ia64io.h +++ b/drivers/input/serio/i8042-x86ia64io.h @@ -805,6 +805,13 @@ static const struct dmi_system_id __initconst i8042_dmi_kbdreset_table[] = { }, }, { + /* Gigabyte P57 - Elantech touchpad */ + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "GIGABYTE"), + DMI_MATCH(DMI_PRODUCT_NAME, "P57"), + }, + }, + { /* Schenker XMG C504 - Elantech touchpad */ .matches = { DMI_MATCH(DMI_SYS_VENDOR, "XMG"), diff --git a/drivers/md/bcache/bcache.h b/drivers/md/bcache/bcache.h index 04f7bc28ef83..dfdd1908641c 100644 --- a/drivers/md/bcache/bcache.h +++ b/drivers/md/bcache/bcache.h @@ -348,6 +348,7 @@ struct cached_dev { /* Limit number of writeback bios in flight */ struct semaphore in_flight; struct task_struct *writeback_thread; + struct workqueue_struct *writeback_write_wq; struct keybuf writeback_keys; diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c index a7a03a21d78a..8e5666ac8a6a 100644 --- a/drivers/md/bcache/super.c +++ b/drivers/md/bcache/super.c @@ -1054,7 +1054,7 @@ int bch_cached_dev_attach(struct cached_dev *dc, struct cache_set *c) } if (BDEV_STATE(&dc->sb) == BDEV_STATE_DIRTY) { - bch_sectors_dirty_init(dc); + bch_sectors_dirty_init(&dc->disk); atomic_set(&dc->has_dirty, 1); atomic_inc(&dc->count); bch_writeback_queue(dc); @@ -1087,6 +1087,8 @@ static void cached_dev_free(struct closure *cl) cancel_delayed_work_sync(&dc->writeback_rate_update); if (!IS_ERR_OR_NULL(dc->writeback_thread)) kthread_stop(dc->writeback_thread); + if (dc->writeback_write_wq) + destroy_workqueue(dc->writeback_write_wq); mutex_lock(&bch_register_lock); @@ -1258,6 +1260,7 @@ static int flash_dev_run(struct cache_set *c, struct uuid_entry *u) goto err; bcache_device_attach(d, c, u - c->uuids); + bch_sectors_dirty_init(d); bch_flash_dev_request_init(d); add_disk(d->disk); @@ -1996,6 +1999,8 @@ static ssize_t register_bcache(struct kobject *k, struct kobj_attribute *attr, else err = "device busy"; mutex_unlock(&bch_register_lock); + if (!IS_ERR(bdev)) + bdput(bdev); if (attr == &ksysfs_register_quiet) goto out; } diff --git a/drivers/md/bcache/sysfs.c b/drivers/md/bcache/sysfs.c index b3ff57d61dde..4fbb5532f24c 100644 --- a/drivers/md/bcache/sysfs.c +++ b/drivers/md/bcache/sysfs.c @@ -191,7 +191,7 @@ STORE(__cached_dev) { struct cached_dev *dc = container_of(kobj, struct cached_dev, disk.kobj); - unsigned v = size; + ssize_t v = size; struct cache_set *c; struct kobj_uevent_env *env; @@ -226,7 +226,7 @@ STORE(__cached_dev) bch_cached_dev_run(dc); if (attr == &sysfs_cache_mode) { - ssize_t v = bch_read_string_list(buf, bch_cache_modes + 1); + v = bch_read_string_list(buf, bch_cache_modes + 1); if (v < 0) return v; diff --git a/drivers/md/bcache/util.c b/drivers/md/bcache/util.c index db3ae4c2b223..6c18e3ec3e48 100644 --- a/drivers/md/bcache/util.c +++ b/drivers/md/bcache/util.c @@ -73,24 +73,44 @@ STRTO_H(strtouint, unsigned int) STRTO_H(strtoll, long long) STRTO_H(strtoull, unsigned long long) +/** + * bch_hprint() - formats @v to human readable string for sysfs. + * + * @v - signed 64 bit integer + * @buf - the (at least 8 byte) buffer to format the result into. + * + * Returns the number of bytes used by format. + */ ssize_t bch_hprint(char *buf, int64_t v) { static const char units[] = "?kMGTPEZY"; - char dec[4] = ""; - int u, t = 0; - - for (u = 0; v >= 1024 || v <= -1024; u++) { - t = v & ~(~0 << 10); - v >>= 10; - } - - if (!u) - return sprintf(buf, "%llu", v); - - if (v < 100 && v > -100) - snprintf(dec, sizeof(dec), ".%i", t / 100); - - return sprintf(buf, "%lli%s%c", v, dec, units[u]); + int u = 0, t; + + uint64_t q; + + if (v < 0) + q = -v; + else + q = v; + + /* For as long as the number is more than 3 digits, but at least + * once, shift right / divide by 1024. Keep the remainder for + * a digit after the decimal point. + */ + do { + u++; + + t = q & ~(~0 << 10); + q >>= 10; + } while (q >= 1000); + + if (v < 0) + /* '-', up to 3 digits, '.', 1 digit, 1 character, null; + * yields 8 bytes. + */ + return sprintf(buf, "-%llu.%i%c", q, t * 10 / 1024, units[u]); + else + return sprintf(buf, "%llu.%i%c", q, t * 10 / 1024, units[u]); } ssize_t bch_snprint_string_list(char *buf, size_t size, const char * const list[], diff --git a/drivers/md/bcache/writeback.c b/drivers/md/bcache/writeback.c index 540256a0df4f..b0667b321a3f 100644 --- a/drivers/md/bcache/writeback.c +++ b/drivers/md/bcache/writeback.c @@ -21,7 +21,8 @@ static void __update_writeback_rate(struct cached_dev *dc) { struct cache_set *c = dc->disk.c; - uint64_t cache_sectors = c->nbuckets * c->sb.bucket_size; + uint64_t cache_sectors = c->nbuckets * c->sb.bucket_size - + bcache_flash_devs_sectors_dirty(c); uint64_t cache_dirty_target = div_u64(cache_sectors * dc->writeback_percent, 100); @@ -190,7 +191,7 @@ static void write_dirty(struct closure *cl) closure_bio_submit(&io->bio, cl, &io->dc->disk); - continue_at(cl, write_dirty_finish, system_wq); + continue_at(cl, write_dirty_finish, io->dc->writeback_write_wq); } static void read_dirty_endio(struct bio *bio, int error) @@ -210,7 +211,7 @@ static void read_dirty_submit(struct closure *cl) closure_bio_submit(&io->bio, cl, &io->dc->disk); - continue_at(cl, write_dirty, system_wq); + continue_at(cl, write_dirty, io->dc->writeback_write_wq); } static void read_dirty(struct cached_dev *dc) @@ -488,17 +489,17 @@ static int sectors_dirty_init_fn(struct btree_op *_op, struct btree *b, return MAP_CONTINUE; } -void bch_sectors_dirty_init(struct cached_dev *dc) +void bch_sectors_dirty_init(struct bcache_device *d) { struct sectors_dirty_init op; bch_btree_op_init(&op.op, -1); - op.inode = dc->disk.id; + op.inode = d->id; - bch_btree_map_keys(&op.op, dc->disk.c, &KEY(op.inode, 0, 0), + bch_btree_map_keys(&op.op, d->c, &KEY(op.inode, 0, 0), sectors_dirty_init_fn, 0); - dc->disk.sectors_dirty_last = bcache_dev_sectors_dirty(&dc->disk); + d->sectors_dirty_last = bcache_dev_sectors_dirty(d); } void bch_cached_dev_writeback_init(struct cached_dev *dc) @@ -522,6 +523,11 @@ void bch_cached_dev_writeback_init(struct cached_dev *dc) int bch_cached_dev_writeback_start(struct cached_dev *dc) { + dc->writeback_write_wq = alloc_workqueue("bcache_writeback_wq", + WQ_MEM_RECLAIM, 0); + if (!dc->writeback_write_wq) + return -ENOMEM; + dc->writeback_thread = kthread_create(bch_writeback_thread, dc, "bcache_writeback"); if (IS_ERR(dc->writeback_thread)) diff --git a/drivers/md/bcache/writeback.h b/drivers/md/bcache/writeback.h index 073a042aed24..daec4fd782ea 100644 --- a/drivers/md/bcache/writeback.h +++ b/drivers/md/bcache/writeback.h @@ -14,6 +14,25 @@ static inline uint64_t bcache_dev_sectors_dirty(struct bcache_device *d) return ret; } +static inline uint64_t bcache_flash_devs_sectors_dirty(struct cache_set *c) +{ + uint64_t i, ret = 0; + + mutex_lock(&bch_register_lock); + + for (i = 0; i < c->nr_uuids; i++) { + struct bcache_device *d = c->devices[i]; + + if (!d || !UUID_FLASH_ONLY(&c->uuids[i])) + continue; + ret += bcache_dev_sectors_dirty(d); + } + + mutex_unlock(&bch_register_lock); + + return ret; +} + static inline unsigned offset_to_stripe(struct bcache_device *d, uint64_t offset) { @@ -85,7 +104,7 @@ static inline void bch_writeback_add(struct cached_dev *dc) void bcache_dev_sectors_dirty_add(struct cache_set *, unsigned, uint64_t, int); -void bch_sectors_dirty_init(struct cached_dev *dc); +void bch_sectors_dirty_init(struct bcache_device *); void bch_cached_dev_writeback_init(struct cached_dev *); int bch_cached_dev_writeback_start(struct cached_dev *); diff --git a/drivers/md/bitmap.c b/drivers/md/bitmap.c index cced062cab4b..cb5c9d8ea139 100644 --- a/drivers/md/bitmap.c +++ b/drivers/md/bitmap.c @@ -1802,6 +1802,11 @@ int bitmap_resize(struct bitmap *bitmap, sector_t blocks, long pages; struct bitmap_page *new_bp; + if (bitmap->storage.file && !init) { + pr_info("md: cannot resize file-based bitmap\n"); + return -EINVAL; + } + if (chunksize == 0) { /* If there is enough space, leave the chunk size unchanged, * else increase by factor of two until there is enough space. diff --git a/drivers/media/usb/uvc/uvc_ctrl.c b/drivers/media/usb/uvc/uvc_ctrl.c index 3e59b288b8a8..618e4e2b4207 100644 --- a/drivers/media/usb/uvc/uvc_ctrl.c +++ b/drivers/media/usb/uvc/uvc_ctrl.c @@ -2001,6 +2001,13 @@ int uvc_ctrl_add_mapping(struct uvc_video_chain *chain, goto done; } + /* Validate the user-provided bit-size and offset */ + if (mapping->size > 32 || + mapping->offset + mapping->size > ctrl->info.size * 8) { + ret = -EINVAL; + goto done; + } + list_for_each_entry(map, &ctrl->info.mappings, list) { if (mapping->id == map->id) { uvc_trace(UVC_TRACE_CONTROL, "Can't add mapping '%s', " diff --git a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c index e77d3fc50abd..aa11f02c0a8f 100644 --- a/drivers/media/v4l2-core/v4l2-compat-ioctl32.c +++ b/drivers/media/v4l2-core/v4l2-compat-ioctl32.c @@ -747,7 +747,8 @@ static int put_v4l2_event32(struct v4l2_event *kp, struct v4l2_event32 __user *u copy_to_user(&up->u, &kp->u, sizeof(kp->u)) || put_user(kp->pending, &up->pending) || put_user(kp->sequence, &up->sequence) || - compat_put_timespec(&kp->timestamp, &up->timestamp) || + put_user(kp->timestamp.tv_sec, &up->timestamp.tv_sec) || + put_user(kp->timestamp.tv_nsec, &up->timestamp.tv_nsec) || put_user(kp->id, &up->id) || copy_to_user(up->reserved, kp->reserved, 8 * sizeof(__u32))) return -EFAULT; diff --git a/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c b/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c index 829be21f97b2..be258d90de9e 100644 --- a/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c +++ b/drivers/net/ethernet/qlogic/qlge/qlge_dbg.c @@ -724,7 +724,7 @@ static void ql_build_coredump_seg_header( seg_hdr->cookie = MPI_COREDUMP_COOKIE; seg_hdr->segNum = seg_number; seg_hdr->segSize = seg_size; - memcpy(seg_hdr->description, desc, (sizeof(seg_hdr->description)) - 1); + strncpy(seg_hdr->description, desc, (sizeof(seg_hdr->description)) - 1); } /* diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index caf4d3469d4a..7ae062743bad 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -509,9 +509,6 @@ void phy_stop_machine(struct phy_device *phydev) if (phydev->state > PHY_UP && phydev->state != PHY_HALTED) phydev->state = PHY_UP; mutex_unlock(&phydev->lock); - - /* Now we can run the state machine synchronously */ - phy_state_machine(&phydev->state_queue.work); } /** diff --git a/drivers/pci/hotplug/shpchp_hpc.c b/drivers/pci/hotplug/shpchp_hpc.c index 7d223e9080ef..77dddee2753a 100644 --- a/drivers/pci/hotplug/shpchp_hpc.c +++ b/drivers/pci/hotplug/shpchp_hpc.c @@ -1062,6 +1062,8 @@ int shpc_init(struct controller *ctrl, struct pci_dev *pdev) if (rc) { ctrl_info(ctrl, "Can't get msi for the hotplug controller\n"); ctrl_info(ctrl, "Use INTx for the hotplug controller\n"); + } else { + pci_set_master(pdev); } rc = request_irq(ctrl->pci_dev->irq, shpc_isr, IRQF_SHARED, diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index 5d7fbe4e907e..296889dc193f 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -418,8 +418,8 @@ void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf) rec->scsi_retries = sc->retries; rec->scsi_allowed = sc->allowed; rec->scsi_id = sc->device->id; - /* struct zfcp_dbf_scsi needs to be updated to handle 64bit LUNs */ rec->scsi_lun = (u32)sc->device->lun; + rec->scsi_lun_64_hi = (u32)(sc->device->lun >> 32); rec->host_scribble = (unsigned long)sc->host_scribble; memcpy(rec->scsi_opcode, sc->cmnd, @@ -427,19 +427,32 @@ void zfcp_dbf_scsi(char *tag, struct scsi_cmnd *sc, struct zfcp_fsf_req *fsf) if (fsf) { rec->fsf_req_id = fsf->req_id; + rec->pl_len = FCP_RESP_WITH_EXT; fcp_rsp = (struct fcp_resp_with_ext *) &(fsf->qtcb->bottom.io.fcp_rsp); + /* mandatory parts of FCP_RSP IU in this SCSI record */ memcpy(&rec->fcp_rsp, fcp_rsp, FCP_RESP_WITH_EXT); if (fcp_rsp->resp.fr_flags & FCP_RSP_LEN_VAL) { fcp_rsp_info = (struct fcp_resp_rsp_info *) &fcp_rsp[1]; rec->fcp_rsp_info = fcp_rsp_info->rsp_code; + rec->pl_len += be32_to_cpu(fcp_rsp->ext.fr_rsp_len); } if (fcp_rsp->resp.fr_flags & FCP_SNS_LEN_VAL) { - rec->pl_len = min((u16)SCSI_SENSE_BUFFERSIZE, - (u16)ZFCP_DBF_PAY_MAX_REC); - zfcp_dbf_pl_write(dbf, sc->sense_buffer, rec->pl_len, - "fcp_sns", fsf->req_id); + rec->pl_len += be32_to_cpu(fcp_rsp->ext.fr_sns_len); } + /* complete FCP_RSP IU in associated PAYload record + * but only if there are optional parts + */ + if (fcp_rsp->resp.fr_flags != 0) + zfcp_dbf_pl_write( + dbf, fcp_rsp, + /* at least one full PAY record + * but not beyond hardware response field + */ + min_t(u16, max_t(u16, rec->pl_len, + ZFCP_DBF_PAY_MAX_REC), + FSF_FCP_RSP_SIZE), + "fcp_riu", fsf->req_id); } debug_event(dbf->scsi, 1, rec, sizeof(*rec)); diff --git a/drivers/s390/scsi/zfcp_dbf.h b/drivers/s390/scsi/zfcp_dbf.h index 0be3d48681ae..2039e7510a30 100644 --- a/drivers/s390/scsi/zfcp_dbf.h +++ b/drivers/s390/scsi/zfcp_dbf.h @@ -196,7 +196,7 @@ enum zfcp_dbf_scsi_id { * @id: unique number of recovery record type * @tag: identifier string specifying the location of initiation * @scsi_id: scsi device id - * @scsi_lun: scsi device logical unit number + * @scsi_lun: scsi device logical unit number, low part of 64 bit, old 32 bit * @scsi_result: scsi result * @scsi_retries: current retry number of scsi request * @scsi_allowed: allowed retries @@ -206,6 +206,7 @@ enum zfcp_dbf_scsi_id { * @host_scribble: LLD specific data attached to SCSI request * @pl_len: length of paload stored as zfcp_dbf_pay * @fsf_rsp: response for fsf request + * @scsi_lun_64_hi: scsi device logical unit number, high part of 64 bit */ struct zfcp_dbf_scsi { u8 id; @@ -222,6 +223,7 @@ struct zfcp_dbf_scsi { u64 host_scribble; u16 pl_len; struct fcp_resp_with_ext fcp_rsp; + u32 scsi_lun_64_hi; } __packed; /** @@ -291,7 +293,11 @@ void zfcp_dbf_hba_fsf_response(struct zfcp_fsf_req *req) { struct fsf_qtcb *qtcb = req->qtcb; - if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) && + if (unlikely(req->status & (ZFCP_STATUS_FSFREQ_DISMISSED | + ZFCP_STATUS_FSFREQ_ERROR))) { + zfcp_dbf_hba_fsf_resp("fs_rerr", 3, req); + + } else if ((qtcb->prefix.prot_status != FSF_PROT_GOOD) && (qtcb->prefix.prot_status != FSF_PROT_FSF_STATUS_PRESENTED)) { zfcp_dbf_hba_fsf_resp("fs_perr", 1, req); diff --git a/drivers/s390/scsi/zfcp_fc.h b/drivers/s390/scsi/zfcp_fc.h index b1d2024ed513..c2e40e10b293 100644 --- a/drivers/s390/scsi/zfcp_fc.h +++ b/drivers/s390/scsi/zfcp_fc.h @@ -4,7 +4,7 @@ * Fibre Channel related definitions and inline functions for the zfcp * device driver * - * Copyright IBM Corp. 2009 + * Copyright IBM Corp. 2009, 2017 */ #ifndef ZFCP_FC_H @@ -291,6 +291,10 @@ void zfcp_fc_eval_fcp_rsp(struct fcp_resp_with_ext *fcp_rsp, !(rsp_flags & FCP_SNS_LEN_VAL) && fcp_rsp->resp.fr_status == SAM_STAT_GOOD) set_host_byte(scsi, DID_ERROR); + } else if (unlikely(rsp_flags & FCP_RESID_OVER)) { + /* FCP_DL was not sufficient for SCSI data length */ + if (fcp_rsp->resp.fr_status == SAM_STAT_GOOD) + set_host_byte(scsi, DID_ERROR); } } diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 0fe8d5d95119..5dc56db8a893 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -2247,7 +2247,8 @@ int zfcp_fsf_fcp_cmnd(struct scsi_cmnd *scsi_cmnd) fcp_cmnd = (struct fcp_cmnd *) &req->qtcb->bottom.io.fcp_cmnd; zfcp_fc_scsi_to_fcp(fcp_cmnd, scsi_cmnd, 0); - if (scsi_prot_sg_count(scsi_cmnd)) { + if ((scsi_get_prot_op(scsi_cmnd) != SCSI_PROT_NORMAL) && + scsi_prot_sg_count(scsi_cmnd)) { zfcp_qdio_set_data_div(qdio, &req->qdio_req, scsi_prot_sg_count(scsi_cmnd)); retval = zfcp_qdio_sbals_from_sg(qdio, &req->qdio_req, diff --git a/drivers/s390/scsi/zfcp_scsi.c b/drivers/s390/scsi/zfcp_scsi.c index 7b353647cb90..92f6e9e466b5 100644 --- a/drivers/s390/scsi/zfcp_scsi.c +++ b/drivers/s390/scsi/zfcp_scsi.c @@ -245,8 +245,10 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags) zfcp_erp_wait(adapter); ret = fc_block_scsi_eh(scpnt); - if (ret) + if (ret) { + zfcp_dbf_scsi_devreset("fiof", scpnt, tm_flags); return ret; + } if (!(atomic_read(&adapter->status) & ZFCP_STATUS_COMMON_RUNNING)) { @@ -254,8 +256,10 @@ static int zfcp_task_mgmt_function(struct scsi_cmnd *scpnt, u8 tm_flags) return SUCCESS; } } - if (!fsf_req) + if (!fsf_req) { + zfcp_dbf_scsi_devreset("reqf", scpnt, tm_flags); return FAILED; + } wait_for_completion(&fsf_req->completion); diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index c1b2e86839ae..e9cd3013dcd0 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -404,6 +404,8 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj, return -EINVAL; if (start > ha->optrom_size) return -EINVAL; + if (size > ha->optrom_size - start) + size = ha->optrom_size - start; mutex_lock(&ha->optrom_mutex); switch (val) { @@ -429,8 +431,7 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj, } ha->optrom_region_start = start; - ha->optrom_region_size = start + size > ha->optrom_size ? - ha->optrom_size - start : size; + ha->optrom_region_size = start + size; ha->optrom_state = QLA_SREADING; ha->optrom_buffer = vmalloc(ha->optrom_region_size); @@ -503,8 +504,7 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj, } ha->optrom_region_start = start; - ha->optrom_region_size = start + size > ha->optrom_size ? - ha->optrom_size - start : size; + ha->optrom_region_size = start + size; ha->optrom_state = QLA_SWRITING; ha->optrom_buffer = vmalloc(ha->optrom_region_size); diff --git a/drivers/scsi/sg.c b/drivers/scsi/sg.c index efd7508d7f00..591575587f47 100644 --- a/drivers/scsi/sg.c +++ b/drivers/scsi/sg.c @@ -133,7 +133,7 @@ struct sg_device; /* forward declarations */ struct sg_fd; typedef struct sg_request { /* SG_MAX_QUEUE requests outstanding per file */ - struct sg_request *nextrp; /* NULL -> tail request (slist) */ + struct list_head entry; /* list entry */ struct sg_fd *parentfp; /* NULL -> not in use */ Sg_scatter_hold data; /* hold buffer, perhaps scatter list */ sg_io_hdr_t header; /* scsi command+info, see <scsi/sg.h> */ @@ -157,8 +157,7 @@ typedef struct sg_fd { /* holds the state of a file descriptor */ int timeout; /* defaults to SG_DEFAULT_TIMEOUT */ int timeout_user; /* defaults to SG_DEFAULT_TIMEOUT_USER */ Sg_scatter_hold reserve; /* buffer held for this file descriptor */ - unsigned save_scat_len; /* original length of trunc. scat. element */ - Sg_request *headrp; /* head of request slist, NULL->empty */ + struct list_head rq_list; /* head of request list */ struct fasync_struct *async_qp; /* used by asynchronous notification */ Sg_request req_arr[SG_MAX_QUEUE]; /* used as singly-linked list */ char low_dma; /* as in parent but possibly overridden to 1 */ @@ -855,6 +854,39 @@ static int max_sectors_bytes(struct request_queue *q) return max_sectors << 9; } +static void +sg_fill_request_table(Sg_fd *sfp, sg_req_info_t *rinfo) +{ + Sg_request *srp; + int val; + unsigned int ms; + + val = 0; + list_for_each_entry(srp, &sfp->rq_list, entry) { + if (val > SG_MAX_QUEUE) + break; + rinfo[val].req_state = srp->done + 1; + rinfo[val].problem = + srp->header.masked_status & + srp->header.host_status & + srp->header.driver_status; + if (srp->done) + rinfo[val].duration = + srp->header.duration; + else { + ms = jiffies_to_msecs(jiffies); + rinfo[val].duration = + (ms > srp->header.duration) ? + (ms - srp->header.duration) : 0; + } + rinfo[val].orphan = srp->orphan; + rinfo[val].sg_io_owned = srp->sg_io_owned; + rinfo[val].pack_id = srp->header.pack_id; + rinfo[val].usr_ptr = srp->header.usr_ptr; + val++; + } +} + static long sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) { @@ -966,7 +998,7 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) if (!access_ok(VERIFY_WRITE, ip, sizeof (int))) return -EFAULT; read_lock_irqsave(&sfp->rq_list_lock, iflags); - for (srp = sfp->headrp; srp; srp = srp->nextrp) { + list_for_each_entry(srp, &sfp->rq_list, entry) { if ((1 == srp->done) && (!srp->sg_io_owned)) { read_unlock_irqrestore(&sfp->rq_list_lock, iflags); @@ -979,7 +1011,8 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) return 0; case SG_GET_NUM_WAITING: read_lock_irqsave(&sfp->rq_list_lock, iflags); - for (val = 0, srp = sfp->headrp; srp; srp = srp->nextrp) { + val = 0; + list_for_each_entry(srp, &sfp->rq_list, entry) { if ((1 == srp->done) && (!srp->sg_io_owned)) ++val; } @@ -1047,42 +1080,15 @@ sg_ioctl(struct file *filp, unsigned int cmd_in, unsigned long arg) return -EFAULT; else { sg_req_info_t *rinfo; - unsigned int ms; - rinfo = kmalloc(SZ_SG_REQ_INFO * SG_MAX_QUEUE, - GFP_KERNEL); + rinfo = kzalloc(SZ_SG_REQ_INFO * SG_MAX_QUEUE, + GFP_KERNEL); if (!rinfo) return -ENOMEM; read_lock_irqsave(&sfp->rq_list_lock, iflags); - for (srp = sfp->headrp, val = 0; val < SG_MAX_QUEUE; - ++val, srp = srp ? srp->nextrp : srp) { - memset(&rinfo[val], 0, SZ_SG_REQ_INFO); - if (srp) { - rinfo[val].req_state = srp->done + 1; - rinfo[val].problem = - srp->header.masked_status & - srp->header.host_status & - srp->header.driver_status; - if (srp->done) - rinfo[val].duration = - srp->header.duration; - else { - ms = jiffies_to_msecs(jiffies); - rinfo[val].duration = - (ms > srp->header.duration) ? - (ms - srp->header.duration) : 0; - } - rinfo[val].orphan = srp->orphan; - rinfo[val].sg_io_owned = - srp->sg_io_owned; - rinfo[val].pack_id = - srp->header.pack_id; - rinfo[val].usr_ptr = - srp->header.usr_ptr; - } - } + sg_fill_request_table(sfp, rinfo); read_unlock_irqrestore(&sfp->rq_list_lock, iflags); - result = __copy_to_user(p, rinfo, + result = __copy_to_user(p, rinfo, SZ_SG_REQ_INFO * SG_MAX_QUEUE); result = result ? -EFAULT : 0; kfree(rinfo); @@ -1214,7 +1220,7 @@ sg_poll(struct file *filp, poll_table * wait) return POLLERR; poll_wait(filp, &sfp->read_wait, wait); read_lock_irqsave(&sfp->rq_list_lock, iflags); - for (srp = sfp->headrp; srp; srp = srp->nextrp) { + list_for_each_entry(srp, &sfp->rq_list, entry) { /* if any read waiting, flag it */ if ((0 == res) && (1 == srp->done) && (!srp->sg_io_owned)) res = POLLIN | POLLRDNORM; @@ -2105,7 +2111,6 @@ sg_unlink_reserve(Sg_fd * sfp, Sg_request * srp) req_schp->pages = NULL; req_schp->page_order = 0; req_schp->sglist_len = 0; - sfp->save_scat_len = 0; srp->res_used = 0; /* Called without mutex lock to avoid deadlock */ sfp->res_in_use = 0; @@ -2118,7 +2123,7 @@ sg_get_rq_mark(Sg_fd * sfp, int pack_id) unsigned long iflags; write_lock_irqsave(&sfp->rq_list_lock, iflags); - for (resp = sfp->headrp; resp; resp = resp->nextrp) { + list_for_each_entry(resp, &sfp->rq_list, entry) { /* look for requests that are ready + not SG_IO owned */ if ((1 == resp->done) && (!resp->sg_io_owned) && ((-1 == pack_id) || (resp->header.pack_id == pack_id))) { @@ -2136,70 +2141,45 @@ sg_add_request(Sg_fd * sfp) { int k; unsigned long iflags; - Sg_request *resp; Sg_request *rp = sfp->req_arr; write_lock_irqsave(&sfp->rq_list_lock, iflags); - resp = sfp->headrp; - if (!resp) { - memset(rp, 0, sizeof (Sg_request)); - rp->parentfp = sfp; - resp = rp; - sfp->headrp = resp; - } else { - if (0 == sfp->cmd_q) - resp = NULL; /* command queuing disallowed */ - else { - for (k = 0; k < SG_MAX_QUEUE; ++k, ++rp) { - if (!rp->parentfp) - break; - } - if (k < SG_MAX_QUEUE) { - memset(rp, 0, sizeof (Sg_request)); - rp->parentfp = sfp; - while (resp->nextrp) - resp = resp->nextrp; - resp->nextrp = rp; - resp = rp; - } else - resp = NULL; + if (!list_empty(&sfp->rq_list)) { + if (!sfp->cmd_q) + goto out_unlock; + + for (k = 0; k < SG_MAX_QUEUE; ++k, ++rp) { + if (!rp->parentfp) + break; } + if (k >= SG_MAX_QUEUE) + goto out_unlock; } - if (resp) { - resp->nextrp = NULL; - resp->header.duration = jiffies_to_msecs(jiffies); - } + memset(rp, 0, sizeof (Sg_request)); + rp->parentfp = sfp; + rp->header.duration = jiffies_to_msecs(jiffies); + list_add_tail(&rp->entry, &sfp->rq_list); write_unlock_irqrestore(&sfp->rq_list_lock, iflags); - return resp; + return rp; +out_unlock: + write_unlock_irqrestore(&sfp->rq_list_lock, iflags); + return NULL; } /* Return of 1 for found; 0 for not found */ static int sg_remove_request(Sg_fd * sfp, Sg_request * srp) { - Sg_request *prev_rp; - Sg_request *rp; unsigned long iflags; int res = 0; - if ((!sfp) || (!srp) || (!sfp->headrp)) + if (!sfp || !srp || list_empty(&sfp->rq_list)) return res; write_lock_irqsave(&sfp->rq_list_lock, iflags); - prev_rp = sfp->headrp; - if (srp == prev_rp) { - sfp->headrp = prev_rp->nextrp; - prev_rp->parentfp = NULL; + if (!list_empty(&srp->entry)) { + list_del(&srp->entry); + srp->parentfp = NULL; res = 1; - } else { - while ((rp = prev_rp->nextrp)) { - if (srp == rp) { - prev_rp->nextrp = rp->nextrp; - rp->parentfp = NULL; - res = 1; - break; - } - prev_rp = rp; - } } write_unlock_irqrestore(&sfp->rq_list_lock, iflags); return res; @@ -2218,7 +2198,7 @@ sg_add_sfp(Sg_device * sdp) init_waitqueue_head(&sfp->read_wait); rwlock_init(&sfp->rq_list_lock); - + INIT_LIST_HEAD(&sfp->rq_list); kref_init(&sfp->f_ref); mutex_init(&sfp->f_mutex); sfp->timeout = SG_DEFAULT_TIMEOUT; @@ -2259,10 +2239,13 @@ sg_remove_sfp_usercontext(struct work_struct *work) { struct sg_fd *sfp = container_of(work, struct sg_fd, ew.work); struct sg_device *sdp = sfp->parentdp; + Sg_request *srp; /* Cleanup any responses which were never read(). */ - while (sfp->headrp) - sg_finish_rem_req(sfp->headrp); + while (!list_empty(&sfp->rq_list)) { + srp = list_first_entry(&sfp->rq_list, Sg_request, entry); + sg_finish_rem_req(srp); + } if (sfp->reserve.bufflen > 0) { SCSI_LOG_TIMEOUT(6, sg_printk(KERN_INFO, sdp, @@ -2665,7 +2648,7 @@ static int sg_proc_seq_show_devstrs(struct seq_file *s, void *v) /* must be called while holding sg_index_lock */ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp) { - int k, m, new_interface, blen, usg; + int k, new_interface, blen, usg; Sg_request *srp; Sg_fd *fp; const sg_io_hdr_t *hp; @@ -2685,13 +2668,11 @@ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp) seq_printf(s, " cmd_q=%d f_packid=%d k_orphan=%d closed=0\n", (int) fp->cmd_q, (int) fp->force_packid, (int) fp->keep_orphan); - for (m = 0, srp = fp->headrp; - srp != NULL; - ++m, srp = srp->nextrp) { + list_for_each_entry(srp, &fp->rq_list, entry) { hp = &srp->header; new_interface = (hp->interface_id == '\0') ? 0 : 1; if (srp->res_used) { - if (new_interface && + if (new_interface && (SG_FLAG_MMAP_IO & hp->flags)) cp = " mmap>> "; else @@ -2722,7 +2703,7 @@ static void sg_proc_debug_helper(struct seq_file *s, Sg_device * sdp) seq_printf(s, "ms sgat=%d op=0x%02x\n", usg, (int) srp->data.cmd_opcode); } - if (0 == m) + if (list_empty(&fp->rq_list)) seq_puts(s, " No requests active\n"); read_unlock(&fp->rq_list_lock); } diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c index 33223e4b53c6..7da914bc2094 100644 --- a/drivers/usb/musb/musb_host.c +++ b/drivers/usb/musb/musb_host.c @@ -1294,7 +1294,6 @@ void musb_host_tx(struct musb *musb, u8 epnum) | MUSB_TXCSR_TXPKTRDY); } return; - mdelay(1); } done: |