search for: time_after_eq

...#39;'s network > >> interface, which send lesser package, will hung if Dom0 running > >> 32bit and DomU''s up-time is very long. I think that one jiffies > >> overflow bug exist in the function tx_credit_exceeded(). > >> I know the inline function time_after_eq(a,b) will process jiffies > >> overflow, but the function have one limit a should little that (b + > >> MAX_SIGNAL_LONG). If a large than the value, time_after_eq will > >> return false. The MAX_SINGNAL_LONG should be 0x7fffffff at 32-bit > >> machine. > >&...

time_after_eq() only works if the delta is < MAX_ULONG/2. For a 32bit Dom0, if netfront sends packets at a very low rate, the time between subsequent calls to tx_credit_exceeded() may exceed MAX_ULONG/2 and the test for timer_after_eq() will be incorrect. Credit will not be replenished and the guest may beco...

...eau_fence_priv *priv = chan->drm->fence; - struct nouveau_eventh *handler; - int ret = 0; + t = jiffies; - ret = nouveau_event_new(pfifo->uevent, 0, - nouveau_fence_wait_uevent_handler, - priv, &handler); - if (ret) - return ret; + if (wait != MAX_SCHEDULE_TIMEOUT && time_after_eq(t, timeout)) { + __set_current_state(TASK_RUNNING); + return 0; + } - nouveau_event_get(handler); + __set_current_state(intr ? TASK_INTERRUPTIBLE : + TASK_UNINTERRUPTIBLE); - if (fence->timeout) { - unsigned long timeout = fence->timeout - jiffies; - - if (time_before(jiffi...

...m 2.4.25 to 2.4.26 - scripts/compatibility.sh: added 2.4.26 - installation example in README now also mentions downloading the iproute2 tarball from Debian - configure and scripts/minisrc.sh now also recognize the Debian iproute tarball - tcsim/setup.klib: added "time_after" and "time_after_eq" to linux/sched.h - tcsim/setup.klib: converts dsfield.h to remove bare newlines from strings (needed to build tcsim with old kernel sources and a new gcc) - if_u32.c:dump_and now checks if any but the last && term changes the offset group (tests/tcng-9m; updated tests/tcng-2i, rep...

...t;dev; unsigned long timeout = fence->timeout; unsigned long sleep_time = NSEC_PER_MSEC / 1000; ktime_t t; int ret = 0; + if (nouveau_gpu_reset_in_progress(dev)) + timeout = jiffies + DRM_HZ / 5; + while (1) { if (__nouveau_fence_signalled(sync_obj, sync_arg)) break; if (time_after_eq(jiffies, timeout)) { - ret = -EBUSY; + if (!nouveau_gpu_reset_in_progress(dev)) + ret = -EIO; break; } diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index ed52a6f..f9bbcc0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/g...

...unsigned long next_credit = + vif->credit_timeout.expires + + msecs_to_jiffies(vif->credit_usec / 1000); + + /* Timer could already be pending in rare cases. */ + if (timer_pending(&vif->credit_timeout)) + return true; + + /* Passed the point where we can replenish credit? */ + if (time_after_eq(now, next_credit)) { + vif->credit_timeout.expires = now; + tx_add_packets(vif); + } + + /* Not enough slot to send right now? Set a callback. */ + if (vif->remaining_packets < 1) { + vif->credit_timeout.data = + (unsigned long)vif; + vif->credit_timeout.function = + tx_c...

...t = fence->emitted_at + 3 * DRM_HZ; unsigned long sleep_time = NSEC_PER_MSEC / 1000; ktime_t t; int ret = 0; + if (nouveau_gpu_reset_in_progress(dev)) + timeout = fence->emitted_at + DRM_HZ / 5; + while (1) { if (__nouveau_fence_signalled(sync_obj, sync_arg)) break; if (time_after_eq(jiffies, timeout)) { - ret = -EBUSY; + if (!nouveau_gpu_reset_in_progress(dev)) + ret = -EIO; break; } diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c index ed52a6f..f9bbcc0 100644 --- a/drivers/gpu/drm/nouveau/nouveau_gem.c +++ b/drivers/g...

...ignaled |= DRM_VMW_FENCE_FLAG_EXEC; + fence->signaled = 1; INIT_LIST_HEAD(&action_list); list_splice_init(&fence->seq_passed_actions, &action_list); @@ -716,14 +706,14 @@ int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data, timeout = jiffies; if (time_after_eq(timeout, (unsigned long)arg->kernel_cookie)) { - ret = ((vmw_fence_obj_signaled(fence, arg->flags)) ? + ret = ((vmw_fence_obj_signaled(fence)) ? 0 : -EBUSY); goto out; } timeout = (unsigned long)arg->kernel_cookie - timeout; - ret = vmw_fence_obj_wait(fence, arg->...

...ld_stop() + || freezing(current)); + if (config_need_stats(vb)) + update_free_and_total(vb); + if (diff > 0) { + unsigned long reclaim_time = vb->last_reclaim + 2 * HZ; + /* + * Don't fill the balloon if a page reclaim happened in + * the past 2 seconds. + */ + if (time_after_eq(reclaim_time, jiffies)) { + /* Inflating too fast--sleep and skip. */ + msleep(500); + } else { + fill_balloon(vb, diff); + } + } else if (diff < 0 && config_pages(vb) == 0) { + /* + * Here we are specifically looking to detect the case + * where there are pages in...

...ld_stop() + || freezing(current)); + if (config_need_stats(vb)) + update_free_and_total(vb); + if (diff > 0) { + unsigned long reclaim_time = vb->last_reclaim + 2 * HZ; + /* + * Don't fill the balloon if a page reclaim happened in + * the past 2 seconds. + */ + if (time_after_eq(reclaim_time, jiffies)) { + /* Inflating too fast--sleep and skip. */ + msleep(500); + } else { + fill_balloon(vb, diff); + } + } else if (diff < 0 && config_pages(vb) == 0) { + /* + * Here we are specifically looking to detect the case + * where there are pages in...

...ev, "kick failed; will retry\n"); > + return -EBUSY; > + } > + dev->needs_kick = false; > + } > + > + while (!dev->driver_has_buffer) { > + unsigned long now = jiffies; > + > + /* Check timeout, otherwise `deadline - now` may underflow. */ > + if time_after_eq(now, deadline) { > + dev_warn(&chip->dev, "timed out %s\n", why); > + dev->needs_kick = true; > + return -ETIMEDOUT; > + } > + > + /* > + * Wait to be signaled by virtio callback. > + * > + * Positive ret is jiffies remaining until timeou...

This version fixes three bugs in the 2nd patch of this series that caused kernel BUG when the system was under race. We weren't accounting with t_oustanding_credits correctly, and there were race conditions caused by the fact the I had overlooked the fact that __jbd2_log_wait_for_space() and jbd2_get_transaction() requires j_state_lock to be write locked. Theodore Ts'o (3): jbd2: Use

...gt;last_reclaim + 2 * HZ; > >> + /* > >> + * Don't fill the balloon if a page reclaim happened in > >> + * the past 2 seconds. > >> + */ > >> + if (time_after_eq(reclaim_time, jiffies)) { > >> + /* Inflating too fast--sleep and skip. */ > >> + msleep(500); > >> + } else { > >> + fill_balloon(vb, diff); > >> +...

...gt;last_reclaim + 2 * HZ; > >> + /* > >> + * Don't fill the balloon if a page reclaim happened in > >> + * the past 2 seconds. > >> + */ > >> + if (time_after_eq(reclaim_time, jiffies)) { > >> + /* Inflating too fast--sleep and skip. */ > >> + msleep(500); > >> + } else { > >> + fill_balloon(vb, diff); > >> +...

...+ } > >> + dev->needs_kick = false; > >> + } > >> + > >> + while (!dev->driver_has_buffer) { > >> + unsigned long now = jiffies; > >> + > >> + /* Check timeout, otherwise `deadline - now` may underflow. */ > >> + if time_after_eq(now, deadline) { > >> + dev_warn(&chip->dev, "timed out %s\n", why); > >> + dev->needs_kick = true; > >> + return -ETIMEDOUT; > >> + } > >> + > >> + /* > >> + * Wait to be signaled by virtio callback. >...

This series depends on the previously posted reservation api patches. 2 of them are not yet in for-next-fences branch of git://git.linaro.org/people/sumit.semwal/linux-3.x.git The missing patches are still in my vmwgfx_wip branch at git://people.freedesktop.org/~mlankhorst/linux All ttm drivers are converted to the fence api, fence_lock is removed and rcu is used in its place. qxl is the first

The HTB scheduler code is a mess, this patch set does some basic house cleaning. The first four should cause no code change, but the last two need more testing. -- Stephen Hemminger <shemminger@osdl.org> "And in the Packet there writ down that doome" - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to

fence_is_signaled callback should support being run in atomic context, but not in irq context. Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com> --- include/linux/fence.h | 23 +++++++++++++++++++---- 1 file changed, 19 insertions(+), 4 deletions(-) diff --git a/include/linux/fence.h b/include/linux/fence.h index d174585b874b..c1a4519ba2f5 100644 ---

This series applies on top of the driver-core-next branch of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git Before converting ttm to the new fence interface I had to fix some drivers to require a reservation before poking with fence_obj. After flipping the switch RCU becomes available instead, and the extra reservations can be dropped again. :-) I've done at least basic

Hi. This patchset implements ia64/xen domU support based on ia64/pv_ops frame work which was sent as another patchest. Changes from take 5 are rebased to Linux 2.6.26-rc3, bug fix ivt.S paravirtualization and multi entry point support. I believe these patches can be applied to the linux ia64 repository. This patchset does the followings. - Some preparation work. Mainly importing header files to