August 2024 - Linux-stable-mirror

FAILED: patch "[PATCH] media: uvcvideo: Fix integer overflow calculating timestamp" failed to apply to 4.19-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 4.19-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-4.19.y git checkout FETCH_HEAD git cherry-pick -x 8676a5e796fa18f55897ca36a94b2adf7f73ebd1 # <… [View More]resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024072903-hamster-magical-c334@gregkh' --subject-prefix 'PATCH 4.19.y' HEAD^.. Possible dependencies: 8676a5e796fa ("media: uvcvideo: Fix integer overflow calculating timestamp") 9e56380ae625 ("media: uvcvideo: Rename debug functions") ed4c5fa4d804 ("media: uvcvideo: use dev_printk() for uvc_trace()") 59e92bf62771 ("media: uvcvideo: New macro uvc_trace_cont") 69df09547e7a ("media: uvcvideo: Use dev_ printk aliases") 2886477ff987 ("media: uvcvideo: Implement UVC_EXT_GPIO_UNIT") 351509c604dc ("media: uvcvideo: Move guid to entity") dc9455ffae02 ("media: uvcvideo: Accept invalid bFormatIndex and bFrameIndex values") b400b6f28af0 ("media: uvcvideo: Force UVC version to 1.0a for 1bcf:0b40") 8a652a17e3c0 ("media: uvcvideo: Ensure all probed info is returned to v4l2") f875bcc375c7 ("media: uvcvideo: Fix dereference of out-of-bound list iterator") d6834b4b58d1 ("media: uvcvideo: Set media controller entity functions") 1771e9fb67e2 ("media: Use fallthrough pseudo-keyword") 85872f861d4c ("media: venus: Mark last capture buffer") 0febf9236970 ("media: venus: helpers: Done buffers per queue type") e6089feca460 ("media: m88ds3103: Add support for ds3103b demod") ab1eda449c6e ("media: venus: vdec: handle 10bit bitstreams") 4ebf969375bc ("media: venus: introduce core selection") 7482a983dea3 ("media: venus: redesign clocks and pm domains control") fd1ee315dcd4 ("media: venus: cache vb payload to be used by clock scaling") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 8676a5e796fa18f55897ca36a94b2adf7f73ebd1 Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda <ribalda(a)chromium.org> Date: Mon, 10 Jun 2024 19:17:49 +0000 Subject: [PATCH] media: uvcvideo: Fix integer overflow calculating timestamp The function uvc_video_clock_update() supports a single SOF overflow. Or in other words, the maximum difference between the first ant the last timestamp can be 4096 ticks or 4.096 seconds. This results in a maximum value for y2 of: 0x12FBECA00, that overflows 32bits. y2 = (u32)ktime_to_ns(ktime_sub(last->host_time, first->host_time)) + y1; Extend the size of y2 to u64 to support all its values. Without this patch: # yavta -s 1920x1080 -f YUYV -t 1/5 -c /dev/video0 Device /dev/v4l/by-id/usb-Shine-Optics_Integrated_Camera_0001-video-index0 opened. Device `Integrated Camera: Integrated C' on `usb-0000:00:14.0-6' (driver 'uvcvideo') supports video, capture, without mplanes. Video format set: YUYV (56595559) 1920x1080 (stride 3840) field none buffer size 4147200 Video format: YUYV (56595559) 1920x1080 (stride 3840) field none buffer size 4147200 Current frame rate: 1/5 Setting frame rate to: 1/5 Frame rate set: 1/5 8 buffers requested. length: 4147200 offset: 0 timestamp type/source: mono/SoE Buffer 0/0 mapped at address 0x7947ea94c000. length: 4147200 offset: 4149248 timestamp type/source: mono/SoE Buffer 1/0 mapped at address 0x7947ea557000. length: 4147200 offset: 8298496 timestamp type/source: mono/SoE Buffer 2/0 mapped at address 0x7947ea162000. length: 4147200 offset: 12447744 timestamp type/source: mono/SoE Buffer 3/0 mapped at address 0x7947e9d6d000. length: 4147200 offset: 16596992 timestamp type/source: mono/SoE Buffer 4/0 mapped at address 0x7947e9978000. length: 4147200 offset: 20746240 timestamp type/source: mono/SoE Buffer 5/0 mapped at address 0x7947e9583000. length: 4147200 offset: 24895488 timestamp type/source: mono/SoE Buffer 6/0 mapped at address 0x7947e918e000. length: 4147200 offset: 29044736 timestamp type/source: mono/SoE Buffer 7/0 mapped at address 0x7947e8d99000. 0 (0) [-] none 0 4147200 B 507.554210 508.874282 242.836 fps ts mono/SoE 1 (1) [-] none 2 4147200 B 508.886298 509.074289 0.751 fps ts mono/SoE 2 (2) [-] none 3 4147200 B 509.076362 509.274307 5.261 fps ts mono/SoE 3 (3) [-] none 4 4147200 B 509.276371 509.474336 5.000 fps ts mono/SoE 4 (4) [-] none 5 4147200 B 509.476394 509.674394 4.999 fps ts mono/SoE 5 (5) [-] none 6 4147200 B 509.676506 509.874345 4.997 fps ts mono/SoE 6 (6) [-] none 7 4147200 B 509.876430 510.074370 5.002 fps ts mono/SoE 7 (7) [-] none 8 4147200 B 510.076434 510.274365 5.000 fps ts mono/SoE 8 (0) [-] none 9 4147200 B 510.276421 510.474333 5.000 fps ts mono/SoE 9 (1) [-] none 10 4147200 B 510.476391 510.674429 5.001 fps ts mono/SoE 10 (2) [-] none 11 4147200 B 510.676434 510.874283 4.999 fps ts mono/SoE 11 (3) [-] none 12 4147200 B 510.886264 511.074349 4.766 fps ts mono/SoE 12 (4) [-] none 13 4147200 B 511.070577 511.274304 5.426 fps ts mono/SoE 13 (5) [-] none 14 4147200 B 511.286249 511.474301 4.637 fps ts mono/SoE 14 (6) [-] none 15 4147200 B 511.470542 511.674251 5.426 fps ts mono/SoE 15 (7) [-] none 16 4147200 B 511.672651 511.874337 4.948 fps ts mono/SoE 16 (0) [-] none 17 4147200 B 511.873988 512.074462 4.967 fps ts mono/SoE 17 (1) [-] none 18 4147200 B 512.075982 512.278296 4.951 fps ts mono/SoE 18 (2) [-] none 19 4147200 B 512.282631 512.482423 4.839 fps ts mono/SoE 19 (3) [-] none 20 4147200 B 518.986637 512.686333 0.149 fps ts mono/SoE 20 (4) [-] none 21 4147200 B 518.342709 512.886386 -1.553 fps ts mono/SoE 21 (5) [-] none 22 4147200 B 517.909812 513.090360 -2.310 fps ts mono/SoE 22 (6) [-] none 23 4147200 B 517.590775 513.294454 -3.134 fps ts mono/SoE 23 (7) [-] none 24 4147200 B 513.298465 513.494335 -0.233 fps ts mono/SoE 24 (0) [-] none 25 4147200 B 513.510273 513.698375 4.721 fps ts mono/SoE 25 (1) [-] none 26 4147200 B 513.698904 513.902327 5.301 fps ts mono/SoE 26 (2) [-] none 27 4147200 B 513.895971 514.102348 5.074 fps ts mono/SoE 27 (3) [-] none 28 4147200 B 514.099091 514.306337 4.923 fps ts mono/SoE 28 (4) [-] none 29 4147200 B 514.310348 514.510567 4.734 fps ts mono/SoE 29 (5) [-] none 30 4147200 B 514.509295 514.710367 5.026 fps ts mono/SoE 30 (6) [-] none 31 4147200 B 521.532513 514.914398 0.142 fps ts mono/SoE 31 (7) [-] none 32 4147200 B 520.885277 515.118385 -1.545 fps ts mono/SoE 32 (0) [-] none 33 4147200 B 520.411140 515.318336 -2.109 fps ts mono/SoE 33 (1) [-] none 34 4147200 B 515.325425 515.522278 -0.197 fps ts mono/SoE 34 (2) [-] none 35 4147200 B 515.538276 515.726423 4.698 fps ts mono/SoE 35 (3) [-] none 36 4147200 B 515.720767 515.930373 5.480 fps ts mono/SoE Cc: stable(a)vger.kernel.org Fixes: 66847ef013cc ("[media] uvcvideo: Add UVC timestamps support") Signed-off-by: Ricardo Ribalda <ribalda(a)chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> Link: https://lore.kernel.org/r/20240610-hwtimestamp-followup-v1-2-f9eaed7be7f0@c… Signed-off-by: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index aebcf9b25a16..4dfc1b86bdee 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -760,11 +760,11 @@ void uvc_video_clock_update(struct uvc_streaming *stream, unsigned long flags; u64 timestamp; u32 delta_stc; - u32 y1, y2; + u32 y1; u32 x1, x2; u32 mean; u32 sof; - u64 y; + u64 y, y2; if (!uvc_hw_timestamps_param) return; @@ -816,7 +816,7 @@ void uvc_video_clock_update(struct uvc_streaming *stream, sof = y; uvc_dbg(stream->dev, CLOCK, - "%s: PTS %u y %llu.%06llu SOF %u.%06llu (x1 %u x2 %u y1 %u y2 %u SOF offset %u)\n", + "%s: PTS %u y %llu.%06llu SOF %u.%06llu (x1 %u x2 %u y1 %u y2 %llu SOF offset %u)\n", stream->dev->name, buf->pts, y >> 16, div_u64((y & 0xffff) * 1000000, 65536), sof >> 16, div_u64(((u64)sof & 0xffff) * 1000000LLU, 65536), @@ -831,7 +831,7 @@ void uvc_video_clock_update(struct uvc_streaming *stream, goto done; y1 = NSEC_PER_SEC; - y2 = (u32)ktime_to_ns(ktime_sub(last->host_time, first->host_time)) + y1; + y2 = ktime_to_ns(ktime_sub(last->host_time, first->host_time)) + y1; /* * Interpolated and host SOF timestamps can wrap around at slightly @@ -852,7 +852,7 @@ void uvc_video_clock_update(struct uvc_streaming *stream, timestamp = ktime_to_ns(first->host_time) + y - y1; uvc_dbg(stream->dev, CLOCK, - "%s: SOF %u.%06llu y %llu ts %llu buf ts %llu (x1 %u/%u/%u x2 %u/%u/%u y1 %u y2 %u)\n", + "%s: SOF %u.%06llu y %llu ts %llu buf ts %llu (x1 %u/%u/%u x2 %u/%u/%u y1 %u y2 %llu)\n", stream->dev->name, sof >> 16, div_u64(((u64)sof & 0xffff) * 1000000LLU, 65536), y, timestamp, vbuf->vb2_buf.timestamp, [View Less]

8 months, 1 week

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FAILED: patch "[PATCH] media: uvcvideo: Fix integer overflow calculating timestamp" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 8676a5e796fa18f55897ca36a94b2adf7f73ebd1 # <… [View More]resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024072901-duct-manager-b71e@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: 8676a5e796fa ("media: uvcvideo: Fix integer overflow calculating timestamp") 9e56380ae625 ("media: uvcvideo: Rename debug functions") ed4c5fa4d804 ("media: uvcvideo: use dev_printk() for uvc_trace()") 59e92bf62771 ("media: uvcvideo: New macro uvc_trace_cont") 69df09547e7a ("media: uvcvideo: Use dev_ printk aliases") 2886477ff987 ("media: uvcvideo: Implement UVC_EXT_GPIO_UNIT") 351509c604dc ("media: uvcvideo: Move guid to entity") dc9455ffae02 ("media: uvcvideo: Accept invalid bFormatIndex and bFrameIndex values") b400b6f28af0 ("media: uvcvideo: Force UVC version to 1.0a for 1bcf:0b40") 8a652a17e3c0 ("media: uvcvideo: Ensure all probed info is returned to v4l2") f875bcc375c7 ("media: uvcvideo: Fix dereference of out-of-bound list iterator") d6834b4b58d1 ("media: uvcvideo: Set media controller entity functions") 1771e9fb67e2 ("media: Use fallthrough pseudo-keyword") 85872f861d4c ("media: venus: Mark last capture buffer") 0febf9236970 ("media: venus: helpers: Done buffers per queue type") e6089feca460 ("media: m88ds3103: Add support for ds3103b demod") ab1eda449c6e ("media: venus: vdec: handle 10bit bitstreams") 4ebf969375bc ("media: venus: introduce core selection") 7482a983dea3 ("media: venus: redesign clocks and pm domains control") fd1ee315dcd4 ("media: venus: cache vb payload to be used by clock scaling") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 8676a5e796fa18f55897ca36a94b2adf7f73ebd1 Mon Sep 17 00:00:00 2001 From: Ricardo Ribalda <ribalda(a)chromium.org> Date: Mon, 10 Jun 2024 19:17:49 +0000 Subject: [PATCH] media: uvcvideo: Fix integer overflow calculating timestamp The function uvc_video_clock_update() supports a single SOF overflow. Or in other words, the maximum difference between the first ant the last timestamp can be 4096 ticks or 4.096 seconds. This results in a maximum value for y2 of: 0x12FBECA00, that overflows 32bits. y2 = (u32)ktime_to_ns(ktime_sub(last->host_time, first->host_time)) + y1; Extend the size of y2 to u64 to support all its values. Without this patch: # yavta -s 1920x1080 -f YUYV -t 1/5 -c /dev/video0 Device /dev/v4l/by-id/usb-Shine-Optics_Integrated_Camera_0001-video-index0 opened. Device `Integrated Camera: Integrated C' on `usb-0000:00:14.0-6' (driver 'uvcvideo') supports video, capture, without mplanes. Video format set: YUYV (56595559) 1920x1080 (stride 3840) field none buffer size 4147200 Video format: YUYV (56595559) 1920x1080 (stride 3840) field none buffer size 4147200 Current frame rate: 1/5 Setting frame rate to: 1/5 Frame rate set: 1/5 8 buffers requested. length: 4147200 offset: 0 timestamp type/source: mono/SoE Buffer 0/0 mapped at address 0x7947ea94c000. length: 4147200 offset: 4149248 timestamp type/source: mono/SoE Buffer 1/0 mapped at address 0x7947ea557000. length: 4147200 offset: 8298496 timestamp type/source: mono/SoE Buffer 2/0 mapped at address 0x7947ea162000. length: 4147200 offset: 12447744 timestamp type/source: mono/SoE Buffer 3/0 mapped at address 0x7947e9d6d000. length: 4147200 offset: 16596992 timestamp type/source: mono/SoE Buffer 4/0 mapped at address 0x7947e9978000. length: 4147200 offset: 20746240 timestamp type/source: mono/SoE Buffer 5/0 mapped at address 0x7947e9583000. length: 4147200 offset: 24895488 timestamp type/source: mono/SoE Buffer 6/0 mapped at address 0x7947e918e000. length: 4147200 offset: 29044736 timestamp type/source: mono/SoE Buffer 7/0 mapped at address 0x7947e8d99000. 0 (0) [-] none 0 4147200 B 507.554210 508.874282 242.836 fps ts mono/SoE 1 (1) [-] none 2 4147200 B 508.886298 509.074289 0.751 fps ts mono/SoE 2 (2) [-] none 3 4147200 B 509.076362 509.274307 5.261 fps ts mono/SoE 3 (3) [-] none 4 4147200 B 509.276371 509.474336 5.000 fps ts mono/SoE 4 (4) [-] none 5 4147200 B 509.476394 509.674394 4.999 fps ts mono/SoE 5 (5) [-] none 6 4147200 B 509.676506 509.874345 4.997 fps ts mono/SoE 6 (6) [-] none 7 4147200 B 509.876430 510.074370 5.002 fps ts mono/SoE 7 (7) [-] none 8 4147200 B 510.076434 510.274365 5.000 fps ts mono/SoE 8 (0) [-] none 9 4147200 B 510.276421 510.474333 5.000 fps ts mono/SoE 9 (1) [-] none 10 4147200 B 510.476391 510.674429 5.001 fps ts mono/SoE 10 (2) [-] none 11 4147200 B 510.676434 510.874283 4.999 fps ts mono/SoE 11 (3) [-] none 12 4147200 B 510.886264 511.074349 4.766 fps ts mono/SoE 12 (4) [-] none 13 4147200 B 511.070577 511.274304 5.426 fps ts mono/SoE 13 (5) [-] none 14 4147200 B 511.286249 511.474301 4.637 fps ts mono/SoE 14 (6) [-] none 15 4147200 B 511.470542 511.674251 5.426 fps ts mono/SoE 15 (7) [-] none 16 4147200 B 511.672651 511.874337 4.948 fps ts mono/SoE 16 (0) [-] none 17 4147200 B 511.873988 512.074462 4.967 fps ts mono/SoE 17 (1) [-] none 18 4147200 B 512.075982 512.278296 4.951 fps ts mono/SoE 18 (2) [-] none 19 4147200 B 512.282631 512.482423 4.839 fps ts mono/SoE 19 (3) [-] none 20 4147200 B 518.986637 512.686333 0.149 fps ts mono/SoE 20 (4) [-] none 21 4147200 B 518.342709 512.886386 -1.553 fps ts mono/SoE 21 (5) [-] none 22 4147200 B 517.909812 513.090360 -2.310 fps ts mono/SoE 22 (6) [-] none 23 4147200 B 517.590775 513.294454 -3.134 fps ts mono/SoE 23 (7) [-] none 24 4147200 B 513.298465 513.494335 -0.233 fps ts mono/SoE 24 (0) [-] none 25 4147200 B 513.510273 513.698375 4.721 fps ts mono/SoE 25 (1) [-] none 26 4147200 B 513.698904 513.902327 5.301 fps ts mono/SoE 26 (2) [-] none 27 4147200 B 513.895971 514.102348 5.074 fps ts mono/SoE 27 (3) [-] none 28 4147200 B 514.099091 514.306337 4.923 fps ts mono/SoE 28 (4) [-] none 29 4147200 B 514.310348 514.510567 4.734 fps ts mono/SoE 29 (5) [-] none 30 4147200 B 514.509295 514.710367 5.026 fps ts mono/SoE 30 (6) [-] none 31 4147200 B 521.532513 514.914398 0.142 fps ts mono/SoE 31 (7) [-] none 32 4147200 B 520.885277 515.118385 -1.545 fps ts mono/SoE 32 (0) [-] none 33 4147200 B 520.411140 515.318336 -2.109 fps ts mono/SoE 33 (1) [-] none 34 4147200 B 515.325425 515.522278 -0.197 fps ts mono/SoE 34 (2) [-] none 35 4147200 B 515.538276 515.726423 4.698 fps ts mono/SoE 35 (3) [-] none 36 4147200 B 515.720767 515.930373 5.480 fps ts mono/SoE Cc: stable(a)vger.kernel.org Fixes: 66847ef013cc ("[media] uvcvideo: Add UVC timestamps support") Signed-off-by: Ricardo Ribalda <ribalda(a)chromium.org> Reviewed-by: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> Link: https://lore.kernel.org/r/20240610-hwtimestamp-followup-v1-2-f9eaed7be7f0@c… Signed-off-by: Laurent Pinchart <laurent.pinchart(a)ideasonboard.com> diff --git a/drivers/media/usb/uvc/uvc_video.c b/drivers/media/usb/uvc/uvc_video.c index aebcf9b25a16..4dfc1b86bdee 100644 --- a/drivers/media/usb/uvc/uvc_video.c +++ b/drivers/media/usb/uvc/uvc_video.c @@ -760,11 +760,11 @@ void uvc_video_clock_update(struct uvc_streaming *stream, unsigned long flags; u64 timestamp; u32 delta_stc; - u32 y1, y2; + u32 y1; u32 x1, x2; u32 mean; u32 sof; - u64 y; + u64 y, y2; if (!uvc_hw_timestamps_param) return; @@ -816,7 +816,7 @@ void uvc_video_clock_update(struct uvc_streaming *stream, sof = y; uvc_dbg(stream->dev, CLOCK, - "%s: PTS %u y %llu.%06llu SOF %u.%06llu (x1 %u x2 %u y1 %u y2 %u SOF offset %u)\n", + "%s: PTS %u y %llu.%06llu SOF %u.%06llu (x1 %u x2 %u y1 %u y2 %llu SOF offset %u)\n", stream->dev->name, buf->pts, y >> 16, div_u64((y & 0xffff) * 1000000, 65536), sof >> 16, div_u64(((u64)sof & 0xffff) * 1000000LLU, 65536), @@ -831,7 +831,7 @@ void uvc_video_clock_update(struct uvc_streaming *stream, goto done; y1 = NSEC_PER_SEC; - y2 = (u32)ktime_to_ns(ktime_sub(last->host_time, first->host_time)) + y1; + y2 = ktime_to_ns(ktime_sub(last->host_time, first->host_time)) + y1; /* * Interpolated and host SOF timestamps can wrap around at slightly @@ -852,7 +852,7 @@ void uvc_video_clock_update(struct uvc_streaming *stream, timestamp = ktime_to_ns(first->host_time) + y - y1; uvc_dbg(stream->dev, CLOCK, - "%s: SOF %u.%06llu y %llu ts %llu buf ts %llu (x1 %u/%u/%u x2 %u/%u/%u y1 %u y2 %u)\n", + "%s: SOF %u.%06llu y %llu ts %llu buf ts %llu (x1 %u/%u/%u x2 %u/%u/%u y1 %u y2 %llu)\n", stream->dev->name, sof >> 16, div_u64(((u64)sof & 0xffff) * 1000000LLU, 65536), y, timestamp, vbuf->vb2_buf.timestamp, [View Less]

8 months, 1 week

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[PATCH 3/5] drm/xe/display: Make display suspend/resume work on discrete

by Maarten Lankhorst

We should unpin before evicting all memory, and repin after GT resume. This way, we preserve the contents of the framebuffers, and won't hang on resume due to migration engine not being restored yet. Signed-off-by: Maarten Lankhorst <maarten.lankhorst(a)linux.intel.com> Fixes: dd08ebf6c352 ("drm/xe: Introduce a new DRM driver for Intel GPUs") Cc: <stable(a)vger.kernel.org> # v6.8+ --- drivers/gpu/drm/xe/display/xe_display.c | 23 +++++++++++++++++++++++ drivers/gpu/drm/xe/xe_pm.c … [View More] | 11 ++++++----- 2 files changed, 29 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/xe/display/xe_display.c b/drivers/gpu/drm/xe/display/xe_display.c index 7a1d39e1bbd7d..76a834b72d384 100644 --- a/drivers/gpu/drm/xe/display/xe_display.c +++ b/drivers/gpu/drm/xe/display/xe_display.c @@ -286,6 +286,27 @@ static bool suspend_to_idle(void) return false; } +static void xe_display_flush_cleanup_work(struct xe_device *xe) +{ + struct intel_crtc *crtc; + + for_each_intel_crtc(&xe->drm, crtc) { + struct drm_crtc_commit *commit; + + spin_lock(&crtc->base.commit_lock); + commit = list_first_entry_or_null(&crtc->base.commit_list, + struct drm_crtc_commit, commit_entry); + if (commit) + drm_crtc_commit_get(commit); + spin_unlock(&crtc->base.commit_lock); + + if (commit) { + wait_for_completion(&commit->cleanup_done); + drm_crtc_commit_put(commit); + } + } +} + void xe_display_pm_suspend(struct xe_device *xe, bool runtime) { bool s2idle = suspend_to_idle(); @@ -306,6 +327,8 @@ void xe_display_pm_suspend(struct xe_device *xe, bool runtime) if (!runtime) intel_display_driver_suspend(xe); + xe_display_flush_cleanup_work(xe); + intel_dp_mst_suspend(xe); intel_hpd_cancel_work(xe); diff --git a/drivers/gpu/drm/xe/xe_pm.c b/drivers/gpu/drm/xe/xe_pm.c index 9f3c14fd9f337..fcfb49af8c891 100644 --- a/drivers/gpu/drm/xe/xe_pm.c +++ b/drivers/gpu/drm/xe/xe_pm.c @@ -93,13 +93,13 @@ int xe_pm_suspend(struct xe_device *xe) for_each_gt(gt, xe, id) xe_gt_suspend_prepare(gt); + xe_display_pm_suspend(xe, false); + /* FIXME: Super racey... */ err = xe_bo_evict_all(xe); if (err) goto err; - xe_display_pm_suspend(xe, false); - for_each_gt(gt, xe, id) { err = xe_gt_suspend(gt); if (err) { @@ -154,11 +154,11 @@ int xe_pm_resume(struct xe_device *xe) xe_irq_resume(xe); - xe_display_pm_resume(xe, false); - for_each_gt(gt, xe, id) xe_gt_resume(gt); + xe_display_pm_resume(xe, false); + err = xe_bo_restore_user(xe); if (err) goto err; @@ -367,10 +367,11 @@ int xe_pm_runtime_suspend(struct xe_device *xe) mutex_unlock(&xe->mem_access.vram_userfault.lock); if (xe->d3cold.allowed) { + xe_display_pm_suspend(xe, true); + err = xe_bo_evict_all(xe); if (err) goto out; - xe_display_pm_suspend(xe, true); } for_each_gt(gt, xe, id) { -- 2.45.2 [View Less]

8 months, 1 week

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[PATCH 1/5] drm/xe: Read out rawclk_freq for display

by Maarten Lankhorst

Failing to read out rawclk makes it impossible to read out backlight, which results in backlight not working when the backlight is off during boot, or when reloading the module. Signed-off-by: Maarten Lankhorst <maarten.lankhorst(a)linux.intel.com> Fixes: 44e694958b95 ("drm/xe/display: Implement display support") Cc: <stable(a)vger.kernel.org> # v6.8+ --- drivers/gpu/drm/xe/display/xe_display.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/xe/display/… [View More]

8 months, 1 week

1
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FAILED: patch "[PATCH] dm suspend: return -ERESTARTSYS instead of -EINTR" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 1e1fd567d32fcf7544c6e09e0e5bc6c650da6e23 # <… [View More]

8 months, 1 week

2
1
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FAILED: patch "[PATCH] pidfd: prevent creation of pidfds for kthreads" failed to apply to 5.4-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.4-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.4.y git checkout FETCH_HEAD git cherry-pick -x 3b5bbe798b2451820e74243b738268f51901e7d0 # <… [View More]resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024081916-hastily-apostle-7025@gregkh' --subject-prefix 'PATCH 5.4.y' HEAD^.. Possible dependencies: 3b5bbe798b24 ("pidfd: prevent creation of pidfds for kthreads") 83b290c9e3b5 ("pidfd: clone: allow CLONE_THREAD | CLONE_PIDFD together") 64bef697d33b ("pidfd: implement PIDFD_THREAD flag for pidfd_open()") 21e25205d7f9 ("pidfd: don't do_notify_pidfd() if !thread_group_empty()") cdefbf2324ce ("pidfd: cleanup the usage of __pidfd_prepare's flags") 932562a6045e ("rseq: Split out rseq.h from sched.h") cba6167f0adb ("restart_block: Trim includes") f038cc1379c0 ("locking/seqlock: Split out seqlock_types.h") 53d31ba842d9 ("posix-cpu-timers: Split out posix-timers_types.h") f995443f01b4 ("locking/seqlock: Simplify SEQCOUNT_LOCKNAME()") 58390c8ce1bd ("Merge tag 'iommu-updates-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3b5bbe798b2451820e74243b738268f51901e7d0 Mon Sep 17 00:00:00 2001 From: Christian Brauner <brauner(a)kernel.org> Date: Wed, 31 Jul 2024 12:01:12 +0200 Subject: [PATCH] pidfd: prevent creation of pidfds for kthreads It's currently possible to create pidfds for kthreads but it is unclear what that is supposed to mean. Until we have use-cases for it and we figured out what behavior we want block the creation of pidfds for kthreads. Link: https://lore.kernel.org/r/20240731-gleis-mehreinnahmen-6bbadd128383@brauner Fixes: 32fcb426ec00 ("pid: add pidfd_open()") Cc: stable(a)vger.kernel.org Signed-off-by: Christian Brauner <brauner(a)kernel.org> diff --git a/kernel/fork.c b/kernel/fork.c index cc760491f201..18bdc87209d0 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2053,11 +2053,24 @@ static int __pidfd_prepare(struct pid *pid, unsigned int flags, struct file **re */ int pidfd_prepare(struct pid *pid, unsigned int flags, struct file **ret) { - bool thread = flags & PIDFD_THREAD; - - if (!pid || !pid_has_task(pid, thread ? PIDTYPE_PID : PIDTYPE_TGID)) + if (!pid) return -EINVAL; + scoped_guard(rcu) { + struct task_struct *tsk; + + if (flags & PIDFD_THREAD) + tsk = pid_task(pid, PIDTYPE_PID); + else + tsk = pid_task(pid, PIDTYPE_TGID); + if (!tsk) + return -EINVAL; + + /* Don't create pidfds for kernel threads for now. */ + if (tsk->flags & PF_KTHREAD) + return -EINVAL; + } + return __pidfd_prepare(pid, flags, ret); } @@ -2403,6 +2416,12 @@ __latent_entropy struct task_struct *copy_process( if (clone_flags & CLONE_PIDFD) { int flags = (clone_flags & CLONE_THREAD) ? PIDFD_THREAD : 0; + /* Don't create pidfds for kernel threads for now. */ + if (args->kthread) { + retval = -EINVAL; + goto bad_fork_free_pid; + } + /* Note that no task has been attached to @pid yet. */ retval = __pidfd_prepare(pid, flags, &pidfile); if (retval < 0) [View Less]

8 months, 1 week

1
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FAILED: patch "[PATCH] pidfd: prevent creation of pidfds for kthreads" failed to apply to 5.10-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.10-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.10.y git checkout FETCH_HEAD git cherry-pick -x 3b5bbe798b2451820e74243b738268f51901e7d0 # <… [View More]resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024081915-sample-happening-317a@gregkh' --subject-prefix 'PATCH 5.10.y' HEAD^.. Possible dependencies: 3b5bbe798b24 ("pidfd: prevent creation of pidfds for kthreads") 83b290c9e3b5 ("pidfd: clone: allow CLONE_THREAD | CLONE_PIDFD together") 64bef697d33b ("pidfd: implement PIDFD_THREAD flag for pidfd_open()") 21e25205d7f9 ("pidfd: don't do_notify_pidfd() if !thread_group_empty()") cdefbf2324ce ("pidfd: cleanup the usage of __pidfd_prepare's flags") 932562a6045e ("rseq: Split out rseq.h from sched.h") cba6167f0adb ("restart_block: Trim includes") f038cc1379c0 ("locking/seqlock: Split out seqlock_types.h") 53d31ba842d9 ("posix-cpu-timers: Split out posix-timers_types.h") f995443f01b4 ("locking/seqlock: Simplify SEQCOUNT_LOCKNAME()") 58390c8ce1bd ("Merge tag 'iommu-updates-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3b5bbe798b2451820e74243b738268f51901e7d0 Mon Sep 17 00:00:00 2001 From: Christian Brauner <brauner(a)kernel.org> Date: Wed, 31 Jul 2024 12:01:12 +0200 Subject: [PATCH] pidfd: prevent creation of pidfds for kthreads It's currently possible to create pidfds for kthreads but it is unclear what that is supposed to mean. Until we have use-cases for it and we figured out what behavior we want block the creation of pidfds for kthreads. Link: https://lore.kernel.org/r/20240731-gleis-mehreinnahmen-6bbadd128383@brauner Fixes: 32fcb426ec00 ("pid: add pidfd_open()") Cc: stable(a)vger.kernel.org Signed-off-by: Christian Brauner <brauner(a)kernel.org> diff --git a/kernel/fork.c b/kernel/fork.c index cc760491f201..18bdc87209d0 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2053,11 +2053,24 @@ static int __pidfd_prepare(struct pid *pid, unsigned int flags, struct file **re */ int pidfd_prepare(struct pid *pid, unsigned int flags, struct file **ret) { - bool thread = flags & PIDFD_THREAD; - - if (!pid || !pid_has_task(pid, thread ? PIDTYPE_PID : PIDTYPE_TGID)) + if (!pid) return -EINVAL; + scoped_guard(rcu) { + struct task_struct *tsk; + + if (flags & PIDFD_THREAD) + tsk = pid_task(pid, PIDTYPE_PID); + else + tsk = pid_task(pid, PIDTYPE_TGID); + if (!tsk) + return -EINVAL; + + /* Don't create pidfds for kernel threads for now. */ + if (tsk->flags & PF_KTHREAD) + return -EINVAL; + } + return __pidfd_prepare(pid, flags, ret); } @@ -2403,6 +2416,12 @@ __latent_entropy struct task_struct *copy_process( if (clone_flags & CLONE_PIDFD) { int flags = (clone_flags & CLONE_THREAD) ? PIDFD_THREAD : 0; + /* Don't create pidfds for kernel threads for now. */ + if (args->kthread) { + retval = -EINVAL; + goto bad_fork_free_pid; + } + /* Note that no task has been attached to @pid yet. */ retval = __pidfd_prepare(pid, flags, &pidfile); if (retval < 0) [View Less]

8 months, 1 week

1
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FAILED: patch "[PATCH] pidfd: prevent creation of pidfds for kthreads" failed to apply to 5.15-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-5.15.y git checkout FETCH_HEAD git cherry-pick -x 3b5bbe798b2451820e74243b738268f51901e7d0 # <… [View More]resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024081910-grid-bobsled-6cb3@gregkh' --subject-prefix 'PATCH 5.15.y' HEAD^.. Possible dependencies: 3b5bbe798b24 ("pidfd: prevent creation of pidfds for kthreads") 83b290c9e3b5 ("pidfd: clone: allow CLONE_THREAD | CLONE_PIDFD together") 64bef697d33b ("pidfd: implement PIDFD_THREAD flag for pidfd_open()") 21e25205d7f9 ("pidfd: don't do_notify_pidfd() if !thread_group_empty()") cdefbf2324ce ("pidfd: cleanup the usage of __pidfd_prepare's flags") 932562a6045e ("rseq: Split out rseq.h from sched.h") cba6167f0adb ("restart_block: Trim includes") f038cc1379c0 ("locking/seqlock: Split out seqlock_types.h") 53d31ba842d9 ("posix-cpu-timers: Split out posix-timers_types.h") f995443f01b4 ("locking/seqlock: Simplify SEQCOUNT_LOCKNAME()") 58390c8ce1bd ("Merge tag 'iommu-updates-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3b5bbe798b2451820e74243b738268f51901e7d0 Mon Sep 17 00:00:00 2001 From: Christian Brauner <brauner(a)kernel.org> Date: Wed, 31 Jul 2024 12:01:12 +0200 Subject: [PATCH] pidfd: prevent creation of pidfds for kthreads It's currently possible to create pidfds for kthreads but it is unclear what that is supposed to mean. Until we have use-cases for it and we figured out what behavior we want block the creation of pidfds for kthreads. Link: https://lore.kernel.org/r/20240731-gleis-mehreinnahmen-6bbadd128383@brauner Fixes: 32fcb426ec00 ("pid: add pidfd_open()") Cc: stable(a)vger.kernel.org Signed-off-by: Christian Brauner <brauner(a)kernel.org> diff --git a/kernel/fork.c b/kernel/fork.c index cc760491f201..18bdc87209d0 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2053,11 +2053,24 @@ static int __pidfd_prepare(struct pid *pid, unsigned int flags, struct file **re */ int pidfd_prepare(struct pid *pid, unsigned int flags, struct file **ret) { - bool thread = flags & PIDFD_THREAD; - - if (!pid || !pid_has_task(pid, thread ? PIDTYPE_PID : PIDTYPE_TGID)) + if (!pid) return -EINVAL; + scoped_guard(rcu) { + struct task_struct *tsk; + + if (flags & PIDFD_THREAD) + tsk = pid_task(pid, PIDTYPE_PID); + else + tsk = pid_task(pid, PIDTYPE_TGID); + if (!tsk) + return -EINVAL; + + /* Don't create pidfds for kernel threads for now. */ + if (tsk->flags & PF_KTHREAD) + return -EINVAL; + } + return __pidfd_prepare(pid, flags, ret); } @@ -2403,6 +2416,12 @@ __latent_entropy struct task_struct *copy_process( if (clone_flags & CLONE_PIDFD) { int flags = (clone_flags & CLONE_THREAD) ? PIDFD_THREAD : 0; + /* Don't create pidfds for kernel threads for now. */ + if (args->kthread) { + retval = -EINVAL; + goto bad_fork_free_pid; + } + /* Note that no task has been attached to @pid yet. */ retval = __pidfd_prepare(pid, flags, &pidfile); if (retval < 0) [View Less]

8 months, 1 week

1
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FAILED: patch "[PATCH] pidfd: prevent creation of pidfds for kthreads" failed to apply to 6.1-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.1-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y git checkout FETCH_HEAD git cherry-pick -x 3b5bbe798b2451820e74243b738268f51901e7d0 # <… [View More]resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024081909-comment-hypocrisy-a802@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^.. Possible dependencies: 3b5bbe798b24 ("pidfd: prevent creation of pidfds for kthreads") 83b290c9e3b5 ("pidfd: clone: allow CLONE_THREAD | CLONE_PIDFD together") 64bef697d33b ("pidfd: implement PIDFD_THREAD flag for pidfd_open()") 21e25205d7f9 ("pidfd: don't do_notify_pidfd() if !thread_group_empty()") cdefbf2324ce ("pidfd: cleanup the usage of __pidfd_prepare's flags") 932562a6045e ("rseq: Split out rseq.h from sched.h") cba6167f0adb ("restart_block: Trim includes") f038cc1379c0 ("locking/seqlock: Split out seqlock_types.h") 53d31ba842d9 ("posix-cpu-timers: Split out posix-timers_types.h") f995443f01b4 ("locking/seqlock: Simplify SEQCOUNT_LOCKNAME()") 58390c8ce1bd ("Merge tag 'iommu-updates-v6.4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3b5bbe798b2451820e74243b738268f51901e7d0 Mon Sep 17 00:00:00 2001 From: Christian Brauner <brauner(a)kernel.org> Date: Wed, 31 Jul 2024 12:01:12 +0200 Subject: [PATCH] pidfd: prevent creation of pidfds for kthreads It's currently possible to create pidfds for kthreads but it is unclear what that is supposed to mean. Until we have use-cases for it and we figured out what behavior we want block the creation of pidfds for kthreads. Link: https://lore.kernel.org/r/20240731-gleis-mehreinnahmen-6bbadd128383@brauner Fixes: 32fcb426ec00 ("pid: add pidfd_open()") Cc: stable(a)vger.kernel.org Signed-off-by: Christian Brauner <brauner(a)kernel.org> diff --git a/kernel/fork.c b/kernel/fork.c index cc760491f201..18bdc87209d0 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2053,11 +2053,24 @@ static int __pidfd_prepare(struct pid *pid, unsigned int flags, struct file **re */ int pidfd_prepare(struct pid *pid, unsigned int flags, struct file **ret) { - bool thread = flags & PIDFD_THREAD; - - if (!pid || !pid_has_task(pid, thread ? PIDTYPE_PID : PIDTYPE_TGID)) + if (!pid) return -EINVAL; + scoped_guard(rcu) { + struct task_struct *tsk; + + if (flags & PIDFD_THREAD) + tsk = pid_task(pid, PIDTYPE_PID); + else + tsk = pid_task(pid, PIDTYPE_TGID); + if (!tsk) + return -EINVAL; + + /* Don't create pidfds for kernel threads for now. */ + if (tsk->flags & PF_KTHREAD) + return -EINVAL; + } + return __pidfd_prepare(pid, flags, ret); } @@ -2403,6 +2416,12 @@ __latent_entropy struct task_struct *copy_process( if (clone_flags & CLONE_PIDFD) { int flags = (clone_flags & CLONE_THREAD) ? PIDFD_THREAD : 0; + /* Don't create pidfds for kernel threads for now. */ + if (args->kthread) { + retval = -EINVAL; + goto bad_fork_free_pid; + } + /* Note that no task has been attached to @pid yet. */ retval = __pidfd_prepare(pid, flags, &pidfile); if (retval < 0) [View Less]

8 months, 1 week

1
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FAILED: patch "[PATCH] pidfd: prevent creation of pidfds for kthreads" failed to apply to 6.6-stable tree

by gregkh＠linuxfoundation.org

The patch below does not apply to the 6.6-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <stable(a)vger.kernel.org>. To reproduce the conflict and resubmit, you may use the following commands: git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.6.y git checkout FETCH_HEAD git cherry-pick -x 3b5bbe798b2451820e74243b738268f51901e7d0 # <… [View More]resolve conflicts, build, test, etc.> git commit -s git send-email --to '<stable(a)vger.kernel.org>' --in-reply-to '2024081908-dork-steadfast-6a68@gregkh' --subject-prefix 'PATCH 6.6.y' HEAD^.. Possible dependencies: 3b5bbe798b24 ("pidfd: prevent creation of pidfds for kthreads") 83b290c9e3b5 ("pidfd: clone: allow CLONE_THREAD | CLONE_PIDFD together") 64bef697d33b ("pidfd: implement PIDFD_THREAD flag for pidfd_open()") 21e25205d7f9 ("pidfd: don't do_notify_pidfd() if !thread_group_empty()") cdefbf2324ce ("pidfd: cleanup the usage of __pidfd_prepare's flags") 932562a6045e ("rseq: Split out rseq.h from sched.h") cba6167f0adb ("restart_block: Trim includes") f038cc1379c0 ("locking/seqlock: Split out seqlock_types.h") 53d31ba842d9 ("posix-cpu-timers: Split out posix-timers_types.h") f995443f01b4 ("locking/seqlock: Simplify SEQCOUNT_LOCKNAME()") thanks, greg k-h ------------------ original commit in Linus's tree ------------------ From 3b5bbe798b2451820e74243b738268f51901e7d0 Mon Sep 17 00:00:00 2001 From: Christian Brauner <brauner(a)kernel.org> Date: Wed, 31 Jul 2024 12:01:12 +0200 Subject: [PATCH] pidfd: prevent creation of pidfds for kthreads It's currently possible to create pidfds for kthreads but it is unclear what that is supposed to mean. Until we have use-cases for it and we figured out what behavior we want block the creation of pidfds for kthreads. Link: https://lore.kernel.org/r/20240731-gleis-mehreinnahmen-6bbadd128383@brauner Fixes: 32fcb426ec00 ("pid: add pidfd_open()") Cc: stable(a)vger.kernel.org Signed-off-by: Christian Brauner <brauner(a)kernel.org> diff --git a/kernel/fork.c b/kernel/fork.c index cc760491f201..18bdc87209d0 100644 --- a/kernel/fork.c +++ b/kernel/fork.c @@ -2053,11 +2053,24 @@ static int __pidfd_prepare(struct pid *pid, unsigned int flags, struct file **re */ int pidfd_prepare(struct pid *pid, unsigned int flags, struct file **ret) { - bool thread = flags & PIDFD_THREAD; - - if (!pid || !pid_has_task(pid, thread ? PIDTYPE_PID : PIDTYPE_TGID)) + if (!pid) return -EINVAL; + scoped_guard(rcu) { + struct task_struct *tsk; + + if (flags & PIDFD_THREAD) + tsk = pid_task(pid, PIDTYPE_PID); + else + tsk = pid_task(pid, PIDTYPE_TGID); + if (!tsk) + return -EINVAL; + + /* Don't create pidfds for kernel threads for now. */ + if (tsk->flags & PF_KTHREAD) + return -EINVAL; + } + return __pidfd_prepare(pid, flags, ret); } @@ -2403,6 +2416,12 @@ __latent_entropy struct task_struct *copy_process( if (clone_flags & CLONE_PIDFD) { int flags = (clone_flags & CLONE_THREAD) ? PIDFD_THREAD : 0; + /* Don't create pidfds for kernel threads for now. */ + if (args->kthread) { + retval = -EINVAL; + goto bad_fork_free_pid; + } + /* Note that no task has been attached to @pid yet. */ retval = __pidfd_prepare(pid, flags, &pidfile); if (retval < 0) [View Less]

8 months, 1 week

1
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