From f4cdf7ca9a1fdcca413157df19753f388a5a224e Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Wed, 19 Aug 2026 10:09:22 -0700 Subject: Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ... --- fs/netfs/stats.c | 103 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 103 insertions(+) create mode 100644 fs/netfs/stats.c (limited to 'fs/netfs/stats.c') diff --git a/fs/netfs/stats.c b/fs/netfs/stats.c new file mode 100644 index 000000000..ab6b916ad --- /dev/null +++ b/fs/netfs/stats.c @@ -0,0 +1,103 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* Netfs support statistics + * + * Copyright (C) 2021 Red Hat, Inc. All Rights Reserved. + * Written by David Howells (dhowells@redhat.com) + */ + +#include +#include +#include "internal.h" + +atomic_t netfs_n_rh_dio_read; +atomic_t netfs_n_rh_readahead; +atomic_t netfs_n_rh_read_folio; +atomic_t netfs_n_rh_read_single; +atomic_t netfs_n_rh_rreq; +atomic_t netfs_n_rh_sreq; +atomic_t netfs_n_rh_download; +atomic_t netfs_n_rh_download_done; +atomic_t netfs_n_rh_download_failed; +atomic_t netfs_n_rh_download_instead; +atomic_t netfs_n_rh_read; +atomic_t netfs_n_rh_read_done; +atomic_t netfs_n_rh_read_failed; +atomic_t netfs_n_rh_zero; +atomic_t netfs_n_rh_short_read; +atomic_t netfs_n_rh_write; +atomic_t netfs_n_rh_write_begin; +atomic_t netfs_n_rh_write_done; +atomic_t netfs_n_rh_write_failed; +atomic_t netfs_n_rh_write_zskip; +atomic_t netfs_n_rh_retry_read_req; +atomic_t netfs_n_rh_retry_read_subreq; +atomic_t netfs_n_wh_buffered_write; +atomic_t netfs_n_wh_writethrough; +atomic_t netfs_n_wh_dio_write; +atomic_t netfs_n_wh_writepages; +atomic_t netfs_n_wh_copy_to_cache; +atomic_t netfs_n_wh_wstream_conflict; +atomic_t netfs_n_wh_upload; +atomic_t netfs_n_wh_upload_done; +atomic_t netfs_n_wh_upload_failed; +atomic_t netfs_n_wh_write; +atomic_t netfs_n_wh_write_done; +atomic_t netfs_n_wh_write_failed; +atomic_t netfs_n_wh_retry_write_req; +atomic_t netfs_n_wh_retry_write_subreq; +atomic_t netfs_n_wb_lock_skip; +atomic_t netfs_n_wb_lock_wait; +atomic_t netfs_n_folioq; + +int netfs_stats_show(struct seq_file *m, void *v) +{ + seq_printf(m, "Reads : DR=%u RA=%u RF=%u RS=%u WB=%u WBZ=%u\n", + atomic_read(&netfs_n_rh_dio_read), + atomic_read(&netfs_n_rh_readahead), + atomic_read(&netfs_n_rh_read_folio), + atomic_read(&netfs_n_rh_read_single), + atomic_read(&netfs_n_rh_write_begin), + atomic_read(&netfs_n_rh_write_zskip)); + seq_printf(m, "Writes : BW=%u WT=%u DW=%u WP=%u 2C=%u\n", + atomic_read(&netfs_n_wh_buffered_write), + atomic_read(&netfs_n_wh_writethrough), + atomic_read(&netfs_n_wh_dio_write), + atomic_read(&netfs_n_wh_writepages), + atomic_read(&netfs_n_wh_copy_to_cache)); + seq_printf(m, "ZeroOps: ZR=%u sh=%u sk=%u\n", + atomic_read(&netfs_n_rh_zero), + atomic_read(&netfs_n_rh_short_read), + atomic_read(&netfs_n_rh_write_zskip)); + seq_printf(m, "DownOps: DL=%u ds=%u df=%u di=%u\n", + atomic_read(&netfs_n_rh_download), + atomic_read(&netfs_n_rh_download_done), + atomic_read(&netfs_n_rh_download_failed), + atomic_read(&netfs_n_rh_download_instead)); + seq_printf(m, "CaRdOps: RD=%u rs=%u rf=%u\n", + atomic_read(&netfs_n_rh_read), + atomic_read(&netfs_n_rh_read_done), + atomic_read(&netfs_n_rh_read_failed)); + seq_printf(m, "UpldOps: UL=%u us=%u uf=%u\n", + atomic_read(&netfs_n_wh_upload), + atomic_read(&netfs_n_wh_upload_done), + atomic_read(&netfs_n_wh_upload_failed)); + seq_printf(m, "CaWrOps: WR=%u ws=%u wf=%u\n", + atomic_read(&netfs_n_wh_write), + atomic_read(&netfs_n_wh_write_done), + atomic_read(&netfs_n_wh_write_failed)); + seq_printf(m, "Retries: rq=%u rs=%u wq=%u ws=%u\n", + atomic_read(&netfs_n_rh_retry_read_req), + atomic_read(&netfs_n_rh_retry_read_subreq), + atomic_read(&netfs_n_wh_retry_write_req), + atomic_read(&netfs_n_wh_retry_write_subreq)); + seq_printf(m, "Objs : rr=%u sr=%u foq=%u wsc=%u\n", + atomic_read(&netfs_n_rh_rreq), + atomic_read(&netfs_n_rh_sreq), + atomic_read(&netfs_n_folioq), + atomic_read(&netfs_n_wh_wstream_conflict)); + seq_printf(m, "WbLock : skip=%u wait=%u\n", + atomic_read(&netfs_n_wb_lock_skip), + atomic_read(&netfs_n_wb_lock_wait)); + return fscache_stats_show(m); +} +EXPORT_SYMBOL(netfs_stats_show); -- cgit v1.3.1