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authorLinus Torvalds <torvalds@linux-foundation.org>2022-12-12 08:31:13 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-12-12 08:31:13 -0800
commit059c4a341df7dbaab0a30a8e5420b619518f8887 (patch)
tree039749cb65aa0817c3574004b3bf502d3f0eab38 /include
parent3a28c2c89f4b412b648761430720d40a8dc326ef (diff)
parente6b842741b4f39007215fd7e545cb55aa3d358a2 (diff)
downloadlwn-059c4a341df7dbaab0a30a8e5420b619518f8887.tar.gz
lwn-059c4a341df7dbaab0a30a8e5420b619518f8887.zip
Merge tag 'pstore-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull pstore updates from Kees Cook: "A small collection of bug fixes, refactorings, and general improvements: - Reporting improvements and return path fixes (Guilherme G. Piccoli, Wang Yufen, Kees Cook) - Clean up kmsg_bytes module parameter usage (Guilherme G. Piccoli) - Add Guilherme to pstore MAINTAINERS entry - Choose friendlier allocation flags (Qiujun Huang, Stephen Boyd)" * tag 'pstore-v6.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: pstore: Avoid kcore oops by vmap()ing with VM_IOREMAP pstore/ram: Fix error return code in ramoops_probe() pstore: Alert on backend write error MAINTAINERS: Update pstore maintainers pstore/ram: Set freed addresses to NULL pstore/ram: Move internal definitions out of kernel-wide include pstore/ram: Move pmsg init earlier pstore/ram: Consolidate kfree() paths efi: pstore: Follow convention for the efi-pstore backend name pstore: Inform unregistered backend names as well pstore: Expose kmsg_bytes as a module parameter pstore: Improve error reporting in case of backend overlap pstore/zone: Use GFP_ATOMIC to allocate zone buffer
Diffstat (limited to 'include')
-rw-r--r--include/linux/pstore_ram.h99
1 files changed, 0 insertions, 99 deletions
diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h
index 9f16afec7290..9d65ff94e216 100644
--- a/include/linux/pstore_ram.h
+++ b/include/linux/pstore_ram.h
@@ -8,28 +8,7 @@
#ifndef __LINUX_PSTORE_RAM_H__
#define __LINUX_PSTORE_RAM_H__
-#include <linux/compiler.h>
-#include <linux/device.h>
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/list.h>
#include <linux/pstore.h>
-#include <linux/types.h>
-
-/*
- * Choose whether access to the RAM zone requires locking or not. If a zone
- * can be written to from different CPUs like with ftrace for example, then
- * PRZ_FLAG_NO_LOCK is used. For all other cases, locking is required.
- */
-#define PRZ_FLAG_NO_LOCK BIT(0)
-/*
- * If a PRZ should only have a single-boot lifetime, this marks it as
- * getting wiped after its contents get copied out after boot.
- */
-#define PRZ_FLAG_ZAP_OLD BIT(1)
-
-struct persistent_ram_buffer;
-struct rs_control;
struct persistent_ram_ecc_info {
int block_size;
@@ -39,84 +18,6 @@ struct persistent_ram_ecc_info {
uint16_t *par;
};
-/**
- * struct persistent_ram_zone - Details of a persistent RAM zone (PRZ)
- * used as a pstore backend
- *
- * @paddr: physical address of the mapped RAM area
- * @size: size of mapping
- * @label: unique name of this PRZ
- * @type: frontend type for this PRZ
- * @flags: holds PRZ_FLAGS_* bits
- *
- * @buffer_lock:
- * locks access to @buffer "size" bytes and "start" offset
- * @buffer:
- * pointer to actual RAM area managed by this PRZ
- * @buffer_size:
- * bytes in @buffer->data (not including any trailing ECC bytes)
- *
- * @par_buffer:
- * pointer into @buffer->data containing ECC bytes for @buffer->data
- * @par_header:
- * pointer into @buffer->data containing ECC bytes for @buffer header
- * (i.e. all fields up to @data)
- * @rs_decoder:
- * RSLIB instance for doing ECC calculations
- * @corrected_bytes:
- * ECC corrected bytes accounting since boot
- * @bad_blocks:
- * ECC uncorrectable bytes accounting since boot
- * @ecc_info:
- * ECC configuration details
- *
- * @old_log:
- * saved copy of @buffer->data prior to most recent wipe
- * @old_log_size:
- * bytes contained in @old_log
- *
- */
-struct persistent_ram_zone {
- phys_addr_t paddr;
- size_t size;
- void *vaddr;
- char *label;
- enum pstore_type_id type;
- u32 flags;
-
- raw_spinlock_t buffer_lock;
- struct persistent_ram_buffer *buffer;
- size_t buffer_size;
-
- char *par_buffer;
- char *par_header;
- struct rs_control *rs_decoder;
- int corrected_bytes;
- int bad_blocks;
- struct persistent_ram_ecc_info ecc_info;
-
- char *old_log;
- size_t old_log_size;
-};
-
-struct persistent_ram_zone *persistent_ram_new(phys_addr_t start, size_t size,
- u32 sig, struct persistent_ram_ecc_info *ecc_info,
- unsigned int memtype, u32 flags, char *label);
-void persistent_ram_free(struct persistent_ram_zone *prz);
-void persistent_ram_zap(struct persistent_ram_zone *prz);
-
-int persistent_ram_write(struct persistent_ram_zone *prz, const void *s,
- unsigned int count);
-int persistent_ram_write_user(struct persistent_ram_zone *prz,
- const void __user *s, unsigned int count);
-
-void persistent_ram_save_old(struct persistent_ram_zone *prz);
-size_t persistent_ram_old_size(struct persistent_ram_zone *prz);
-void *persistent_ram_old(struct persistent_ram_zone *prz);
-void persistent_ram_free_old(struct persistent_ram_zone *prz);
-ssize_t persistent_ram_ecc_string(struct persistent_ram_zone *prz,
- char *str, size_t len);
-
/*
* Ramoops platform data
* @mem_size memory size for ramoops