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authorGravatar Linus Torvalds <torvalds@linux-foundation.org> 2020-06-07 10:59:32 -0700
committerGravatar Linus Torvalds <torvalds@linux-foundation.org> 2020-06-07 10:59:32 -0700
commit9aa900c8094dba7a60dc805ecec1e9f720744ba1 (patch)
tree3cc09a579f8ea6d3a182076ba722f7c1648e682d /drivers/misc/mic/scif/scif_rma.c
parentMerge tag 'driver-core-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/... (diff)
parenthabanalabs: correctly cast u64 to void* (diff)
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Merge tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc driver patches for 5.8-rc1 Included in here are: - habanalabs driver updates, loads - mhi bus driver updates - extcon driver updates - clk driver updates (approved by the clock maintainer) - firmware driver updates - fpga driver updates - gnss driver updates - coresight driver updates - interconnect driver updates - parport driver updates (it's still alive!) - nvmem driver updates - soundwire driver updates - visorbus driver updates - w1 driver updates - various misc driver updates In short, loads of different driver subsystem updates along with the drivers as well. All have been in linux-next for a while with no reported issues" * tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (233 commits) habanalabs: correctly cast u64 to void* habanalabs: initialize variable to default value extcon: arizona: Fix runtime PM imbalance on error extcon: max14577: Add proper dt-compatible strings extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()' extcon: remove redundant assignment to variable idx w1: omap-hdq: print dev_err if irq flags are not cleared w1: omap-hdq: fix interrupt handling which did show spurious timeouts w1: omap-hdq: fix return value to be -1 if there is a timeout w1: omap-hdq: cleanup to add missing newline for some dev_dbg /dev/mem: Revoke mappings when a driver claims the region misc: xilinx-sdfec: convert get_user_pages() --> pin_user_pages() misc: xilinx-sdfec: cleanup return value in xsdfec_table_write() misc: xilinx-sdfec: improve get_user_pages_fast() error handling nvmem: qfprom: remove incorrect write support habanalabs: handle MMU cache invalidation timeout habanalabs: don't allow hard reset with open processes habanalabs: GAUDI does not support soft-reset habanalabs: add print for soft reset due to event habanalabs: improve MMU cache invalidation code ...
Diffstat (limited to 'drivers/misc/mic/scif/scif_rma.c')
-rw-r--r--drivers/misc/mic/scif/scif_rma.c26
1 files changed, 13 insertions, 13 deletions
diff --git a/drivers/misc/mic/scif/scif_rma.c b/drivers/misc/mic/scif/scif_rma.c
index 01e27682ea30..406cd5abfa72 100644
--- a/drivers/misc/mic/scif/scif_rma.c
+++ b/drivers/misc/mic/scif/scif_rma.c
@@ -113,14 +113,17 @@ static int scif_destroy_pinned_pages(struct scif_pinned_pages *pin)
int writeable = pin->prot & SCIF_PROT_WRITE;
int kernel = SCIF_MAP_KERNEL & pin->map_flags;
- for (j = 0; j < pin->nr_pages; j++) {
- if (pin->pages[j] && !kernel) {
- if (writeable)
- SetPageDirty(pin->pages[j]);
- put_page(pin->pages[j]);
+ if (kernel) {
+ for (j = 0; j < pin->nr_pages; j++) {
+ if (pin->pages[j] && !kernel) {
+ if (writeable)
+ set_page_dirty_lock(pin->pages[j]);
+ put_page(pin->pages[j]);
+ }
}
- }
-
+ } else
+ unpin_user_pages_dirty_lock(pin->pages, pin->nr_pages,
+ writeable);
scif_free(pin->pages,
pin->nr_pages * sizeof(*pin->pages));
scif_free(pin, sizeof(*pin));
@@ -1375,7 +1378,7 @@ retry:
}
}
- pinned_pages->nr_pages = get_user_pages_fast(
+ pinned_pages->nr_pages = pin_user_pages_fast(
(u64)addr,
nr_pages,
(prot & SCIF_PROT_WRITE) ? FOLL_WRITE : 0,
@@ -1385,11 +1388,8 @@ retry:
if (ulimit)
__scif_dec_pinned_vm_lock(mm, nr_pages);
/* Roll back any pinned pages */
- for (i = 0; i < pinned_pages->nr_pages; i++) {
- if (pinned_pages->pages[i])
- put_page(
- pinned_pages->pages[i]);
- }
+ unpin_user_pages(pinned_pages->pages,
+ pinned_pages->nr_pages);
prot &= ~SCIF_PROT_WRITE;
try_upgrade = false;
goto retry;