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-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmBEqrkACgkQONu9yGCS aT7mng//VA/WvCNtcAvP6hP5AIdVpfRERrbS5Ok09KXK12I8OEI4TCUywbDTcm2B oTmj84aZILoQstVb7GQSa04tf+2jHZ0z39NLxlyRHbrXzcV0z/6OslQv1y6wZzT4 +P25fw97BGpAzw0q0YOXgcjyDtAd5+2l2+/Q52lbAqCVKGbr1FItWx8J2CFol2E5 nul7R8vUbS3z0inFmqEqyixug/RGq6EJHn1HA3RMMO1JWaGTh8FewyVb0ndxcs1F zx1f2lVvTIqsJWkJ/9DcyJwdhFPClEpiVPO/5joLanWXEiTAQNJC08BmXJoIAglP WB9Sl2vSCCN+DmCjPCxWWF5GL/jnohRd8slKwGrELa5E1YdOkqxIUcI4MKby+fck Y9HhjE4OI5L28rGoO1yB3KopnJ6wYCtZSmiHYO6h/dxKMPmRoQ48X5zblPBqFMdu Rr/tXSMFCrpoD0QfdevW8K4t4dHWSh8pf9UxGs6Zv3VDv9i7c+zI4xdNCg/XP3LY Wm1QKC6pkyQFhzteVswMo3jEhw7kuHLgW+KZNS+gX4AbJ99moJOIpigQlzwsMl0m GiKMzrqQ1XwvQH7aQualBkmAYIPcofoshJBvw70MMPS/XGKNArLyTEHu0fzvVTsF cKnzxYEMrYJFQd7hoFHhZnSppEQovYKvRmJv8Mo2wvtNS7EuhD0= =OFAB -----END PGP SIGNATURE----- Merge 4.14.224 into android-4.14-stable Changes in 4.14.224 net: usb: qmi_wwan: support ZTE P685M modem scripts: use pkg-config to locate libcrypto scripts: set proper OpenSSL include dir also for sign-file hugetlb: fix update_and_free_page contig page struct assumption drm/virtio: use kvmalloc for large allocations virtio/s390: implement virtio-ccw revision 2 correctly arm64 module: set plt* section addresses to 0x0 arm64: Avoid redundant type conversions in xchg() and cmpxchg() arm64: cmpxchg: Use "K" instead of "L" for ll/sc immediate constraint arm64: Use correct ll/sc atomic constraints JFS: more checks for invalid superblock media: mceusb: sanity check for prescaler value xfs: Fix assert failure in xfs_setattr_size() smackfs: restrict bytes count in smackfs write functions net: fix up truesize of cloned skb in skb_prepare_for_shift() mm/hugetlb.c: fix unnecessary address expansion of pmd sharing net: bridge: use switchdev for port flags set through sysfs too dt-bindings: net: btusb: DT fix s/interrupt-name/interrupt-names/ staging: fwserial: Fix error handling in fwserial_create x86/reboot: Add Zotac ZBOX CI327 nano PCI reboot quirk vt/consolemap: do font sum unsigned wlcore: Fix command execute failure 19 for wl12xx pktgen: fix misuse of BUG_ON() in pktgen_thread_worker() ath10k: fix wmi mgmt tx queue full due to race condition x86/build: Treat R_386_PLT32 relocation as R_386_PC32 Bluetooth: Fix null pointer dereference in amp_read_loc_assoc_final_data staging: most: sound: add sanity check for function argument media: uvcvideo: Allow entities with no pads f2fs: handle unallocated section and zone on pinned/atgc parisc: Bump 64-bit IRQ stack size to 64 KB scsi: iscsi: Restrict sessions and handles to admin capabilities sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output scsi: iscsi: Ensure sysfs attributes are limited to PAGE_SIZE scsi: iscsi: Verify lengths on passthrough PDUs Xen/gnttab: handle p2m update errors on a per-slot basis xen-netback: respect gnttab_map_refs()'s return value zsmalloc: account the number of compacted pages correctly swap: fix swapfile read/write offset media: v4l: ioctl: Fix memory leak in video_usercopy Linux 4.14.224 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I7731282f88441e9aca7a7d31bab9757831b29273
61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
/*
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* zsmalloc memory allocator
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*
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* Copyright (C) 2011 Nitin Gupta
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* Copyright (C) 2012, 2013 Minchan Kim
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*
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* This code is released using a dual license strategy: BSD/GPL
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* You can choose the license that better fits your requirements.
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*
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* Released under the terms of 3-clause BSD License
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* Released under the terms of GNU General Public License Version 2.0
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*/
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#ifndef _ZS_MALLOC_H_
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#define _ZS_MALLOC_H_
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#include <linux/types.h>
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/*
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* zsmalloc mapping modes
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*
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* NOTE: These only make a difference when a mapped object spans pages.
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* They also have no effect when PGTABLE_MAPPING is selected.
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*/
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enum zs_mapmode {
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ZS_MM_RW, /* normal read-write mapping */
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ZS_MM_RO, /* read-only (no copy-out at unmap time) */
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ZS_MM_WO /* write-only (no copy-in at map time) */
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/*
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* NOTE: ZS_MM_WO should only be used for initializing new
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* (uninitialized) allocations. Partial writes to already
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* initialized allocations should use ZS_MM_RW to preserve the
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* existing data.
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*/
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};
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struct zs_pool_stats {
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/* How many pages were migrated (freed) */
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atomic_long_t pages_compacted;
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};
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struct zs_pool;
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struct zs_pool *zs_create_pool(const char *name);
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void zs_destroy_pool(struct zs_pool *pool);
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unsigned long zs_malloc(struct zs_pool *pool, size_t size, gfp_t flags);
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void zs_free(struct zs_pool *pool, unsigned long obj);
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size_t zs_huge_class_size(struct zs_pool *pool);
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void *zs_map_object(struct zs_pool *pool, unsigned long handle,
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enum zs_mapmode mm);
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void zs_unmap_object(struct zs_pool *pool, unsigned long handle);
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unsigned long zs_get_total_pages(struct zs_pool *pool);
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unsigned long zs_compact(struct zs_pool *pool);
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void zs_pool_stats(struct zs_pool *pool, struct zs_pool_stats *stats);
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#endif
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