search for: nr_sect

Just moving a chunk of files from one filesysstem on xvba to another on xvdb, and was monitoring with xentop as it was taking longer than expected. The VBD_RD and VBD_WR counters were both clocking-up as expected, as was the VBD_RSECT counter, but the VBD_WSECT counter was stuck on zero, I toggled on the individual VBD device counters and these showed the same (with the RD and WR counters

Just moving a chunk of files from one filesysstem on xvba to another on xvdb, and was monitoring with xentop as it was taking longer than expected. The VBD_RD and VBD_WR counters were both clocking-up as expected, as was the VBD_RSECT counter, but the VBD_WSECT counter was stuck on zero, I toggled on the individual VBD device counters and these showed the same (with the RD and WR counters

...e likely to end up being part of @@ -110,7 +115,8 @@ static inline unsigned long vaddr(pendin static int do_block_io_op(blkif_t *blkif); static int dispatch_rw_block_io(blkif_t *blkif, blkif_request_t *req, - pending_req_t *pending_req); + pending_req_t *pending_req, + int *done_nr_sects); static void make_response(blkif_t *blkif, u64 id, unsigned short op, int st); @@ -206,10 +212,20 @@ static void print_stats(blkif_t *blkif) blkif->st_pk_req = 0; } +static void refill_reqcount(blkif_t *blkif) +{ + blkif->reqtime = jiffies + msecs_to_jiffies(1000); + blkif-&g...

...e likely to end up being part of @@ -110,7 +115,8 @@ static inline unsigned long vaddr(pendin static int do_block_io_op(blkif_t *blkif); static int dispatch_rw_block_io(blkif_t *blkif, blkif_request_t *req, - pending_req_t *pending_req); + pending_req_t *pending_req, + int *done_nr_sects); static void make_response(blkif_t *blkif, u64 id, unsigned short op, int st); @@ -206,10 +212,20 @@ static void print_stats(blkif_t *blkif) blkif->st_pk_req = 0; } +static void refill_reqcount(blkif_t *blkif) +{ + blkif->reqtime = jiffies + msecs_to_jiffies(1000); + blkif-&g...

I am proposing these two patches for 3.2. They allow the backend to process the REQ_FUA request as well. Previous to these patches it only did REQ_FLUSH. There is also a bug-fix for the logic of how barrier/flushes were handled. The patches are based on a branch which also has ''feature-discard'' patches, so they won''t apply nativly on top of 3.1-rc5. Please review and

Dear list, This is the V4 of the trim support for xen-blkfront/blkback, Now we move BLKIF_OP_TRIM to BLKIF_OP_DISCARD, and dropped all "trim" stuffs in the patches, and use "discard" instead. Also we updated the helpers of blkif_x86_{32|64}_request or we will meet problems using a non-native protocol. And this patch has been tested with both SSD and raw file, with SSD we will

....discard_secure && - (req->u.discard.flag & BLKIF_DISCARD_SECURE)) ? + (req->flag & BLKIF_DISCARD_SECURE)) ? BLKDEV_DISCARD_SECURE : 0; - err = blkdev_issue_discard(bdev, req->u.discard.sector_number, - req->u.discard.nr_sectors, + err = blkdev_issue_discard(bdev, req->sector_number, + req->nr_sectors, GFP_KERNEL, secure); if (err == -EOPNOTSUPP) { @@ -417,7 +447,7 @@ static int dispatch_discard_io(struct xen_blkif *blkif, } else if (err) status =...

...ret = 0; + int use_pers_gnts; + use_pers_gnts = (pending_req->blkif->can_grant_persist && + pending_req->blkif->pers_gnt_c < + BLKIF_MAX_SEGMENTS_PER_REQUEST * + BLKIF_MAX_PERS_REQUESTS_PER_DEV); + + pending_req->is_pers = use_pers_gnts; /* * Fill out preq.nr_sects with proper amount of sectors, and setup * assign map[..] with the PFN of the page in our domain with the @@ -358,36 +421,87 @@ static int xen_blkbk_map(struct blkif_request *req, for (i = 0; i < nseg; i++) { uint32_t flags; + if (use_pers_gnts) { + pers_gnt = get_pers_gnt(pending_...

Patrick, there following patches fix xenpaging for me. Granttable handling is incomplete. If a page is gone, a GNTST_eagain should be returned to the caller to inidcate the hypercall has to be retried after a while, until the page is available again. Please review. Olaf _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

...IL_MAKE_REQUEST */ static inline bool should_fail_request(struct hd_struct *part, unsigned int bytes) { return false; } #endif /* CONFIG_FAIL_MAKE_REQUEST */ /* * Check whether this bio extends beyond the end of the device. */ static inline int bio_check_eod(struct bio *bio, unsigned int nr_sectors) { sector_t maxsector; if (!nr_sectors) return 0; /* Test device or partition size, when known. */ maxsector = i_size_read(bio->bi_bdev->bd_inode) >> 9; if (maxsector) { sector_t sector = bio->bi_sector; if (maxsector < nr_sectors || maxsector - nr_sectors < se...

...IL_MAKE_REQUEST */ static inline bool should_fail_request(struct hd_struct *part, unsigned int bytes) { return false; } #endif /* CONFIG_FAIL_MAKE_REQUEST */ /* * Check whether this bio extends beyond the end of the device. */ static inline int bio_check_eod(struct bio *bio, unsigned int nr_sectors) { sector_t maxsector; if (!nr_sectors) return 0; /* Test device or partition size, when known. */ maxsector = i_size_read(bio->bi_bdev->bd_inode) >> 9; if (maxsector) { sector_t sector = bio->bi_sector; if (maxsector < nr_sectors || maxsector - nr_sectors < se...