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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2026-08-19 10:09:22 -0700 |
| commit | f4cdf7ca9a1fdcca413157df19753f388a5a224e (patch) | |
| tree | 60a31895b2446cd7fa27514e8c2843534a0de0da /fs/ntfs/malloc.h | |
| download | linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip | |
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
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
...
Diffstat (limited to 'fs/ntfs/malloc.h')
| -rw-r--r-- | fs/ntfs/malloc.h | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/fs/ntfs/malloc.h b/fs/ntfs/malloc.h new file mode 100644 index 000000000..706842573 --- /dev/null +++ b/fs/ntfs/malloc.h @@ -0,0 +1,77 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * malloc.h - NTFS kernel memory handling. Part of the Linux-NTFS project. + * + * Copyright (c) 2001-2005 Anton Altaparmakov + */ + +#ifndef _LINUX_NTFS_MALLOC_H +#define _LINUX_NTFS_MALLOC_H + +#include <linux/vmalloc.h> +#include <linux/slab.h> +#include <linux/highmem.h> + +/** + * __ntfs_malloc - allocate memory in multiples of pages + * @size: number of bytes to allocate + * @gfp_mask: extra flags for the allocator + * + * Internal function. You probably want ntfs_malloc_nofs()... + * + * Allocates @size bytes of memory, rounded up to multiples of PAGE_SIZE and + * returns a pointer to the allocated memory. + * + * If there was insufficient memory to complete the request, return NULL. + * Depending on @gfp_mask the allocation may be guaranteed to succeed. + */ +static inline void *__ntfs_malloc(unsigned long size, gfp_t gfp_mask) +{ + if (likely(size <= PAGE_SIZE)) { + BUG_ON(!size); + /* kmalloc() has per-CPU caches so is faster for now. */ + return kmalloc(PAGE_SIZE, gfp_mask & ~__GFP_HIGHMEM); + /* return (void *)__get_free_page(gfp_mask); */ + } + if (likely((size >> PAGE_SHIFT) < totalram_pages())) + return __vmalloc(size, gfp_mask); + return NULL; +} + +/** + * ntfs_malloc_nofs - allocate memory in multiples of pages + * @size: number of bytes to allocate + * + * Allocates @size bytes of memory, rounded up to multiples of PAGE_SIZE and + * returns a pointer to the allocated memory. + * + * If there was insufficient memory to complete the request, return NULL. + */ +static inline void *ntfs_malloc_nofs(unsigned long size) +{ + return __ntfs_malloc(size, GFP_NOFS | __GFP_HIGHMEM); +} + +/** + * ntfs_malloc_nofs_nofail - allocate memory in multiples of pages + * @size: number of bytes to allocate + * + * Allocates @size bytes of memory, rounded up to multiples of PAGE_SIZE and + * returns a pointer to the allocated memory. + * + * This function guarantees that the allocation will succeed. It will sleep + * for as long as it takes to complete the allocation. + * + * If there was insufficient memory to complete the request, return NULL. + */ +static inline void *ntfs_malloc_nofs_nofail(unsigned long size) +{ + return __ntfs_malloc(size, GFP_NOFS | __GFP_HIGHMEM | __GFP_NOFAIL); +} + +static inline void ntfs_free(void *addr) +{ + kvfree(addr); +} + +#endif /* _LINUX_NTFS_MALLOC_H */ |
