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/udf/lowlevel.c | 62 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) create mode 100644 fs/udf/lowlevel.c (limited to 'fs/udf/lowlevel.c') diff --git a/fs/udf/lowlevel.c b/fs/udf/lowlevel.c new file mode 100644 index 000000000..9d847a7a0 --- /dev/null +++ b/fs/udf/lowlevel.c @@ -0,0 +1,62 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * lowlevel.c + * + * PURPOSE + * Low Level Device Routines for the UDF filesystem + * + * COPYRIGHT + * (C) 1999-2001 Ben Fennema + * + * HISTORY + * + * 03/26/99 blf Created. + */ + +#include "udfdecl.h" + +#include +#include +#include + +#include "udf_sb.h" + +unsigned int udf_get_last_session(struct super_block *sb) +{ + struct cdrom_device_info *cdi = disk_to_cdi(sb->s_bdev->bd_disk); + struct cdrom_multisession ms_info; + + if (!cdi) { + udf_debug("CDROMMULTISESSION not supported.\n"); + return 0; + } + + ms_info.addr_format = CDROM_LBA; + if (cdrom_multisession(cdi, &ms_info) == 0) { + udf_debug("XA disk: %s, vol_desc_start=%d\n", + ms_info.xa_flag ? "yes" : "no", ms_info.addr.lba); + if (ms_info.xa_flag) /* necessary for a valid ms_info.addr */ + return ms_info.addr.lba; + } + return 0; +} + +udf_pblk_t udf_get_last_block(struct super_block *sb) +{ + struct cdrom_device_info *cdi = disk_to_cdi(sb->s_bdev->bd_disk); + unsigned long lblock = 0; + + /* + * The cdrom layer call failed or returned obviously bogus value? + * Try using the device size... + */ + if (!cdi || cdrom_get_last_written(cdi, &lblock) || lblock == 0) { + if (sb_bdev_nr_blocks(sb) > ~(udf_pblk_t)0) + return 0; + lblock = sb_bdev_nr_blocks(sb); + } + + if (lblock) + return lblock - 1; + return 0; +} -- cgit v1.3.1