forked from Qortal/Brooklyn
2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
/*
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* Task I/O accounting operations
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*/
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#ifndef __TASK_IO_ACCOUNTING_OPS_INCLUDED
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#define __TASK_IO_ACCOUNTING_OPS_INCLUDED
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#include <linux/sched.h>
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#ifdef CONFIG_TASK_IO_ACCOUNTING
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static inline void task_io_account_read(size_t bytes)
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{
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current->ioac.read_bytes += bytes;
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}
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/*
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* We approximate number of blocks, because we account bytes only.
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* A 'block' is 512 bytes
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*/
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static inline unsigned long task_io_get_inblock(const struct task_struct *p)
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{
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return p->ioac.read_bytes >> 9;
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}
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static inline void task_io_account_write(size_t bytes)
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{
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current->ioac.write_bytes += bytes;
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}
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/*
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* We approximate number of blocks, because we account bytes only.
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* A 'block' is 512 bytes
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*/
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static inline unsigned long task_io_get_oublock(const struct task_struct *p)
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{
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return p->ioac.write_bytes >> 9;
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}
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static inline void task_io_account_cancelled_write(size_t bytes)
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{
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current->ioac.cancelled_write_bytes += bytes;
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}
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static inline void task_io_accounting_init(struct task_io_accounting *ioac)
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{
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memset(ioac, 0, sizeof(*ioac));
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}
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static inline void task_blk_io_accounting_add(struct task_io_accounting *dst,
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struct task_io_accounting *src)
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{
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dst->read_bytes += src->read_bytes;
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dst->write_bytes += src->write_bytes;
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dst->cancelled_write_bytes += src->cancelled_write_bytes;
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}
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#else
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static inline void task_io_account_read(size_t bytes)
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{
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}
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static inline unsigned long task_io_get_inblock(const struct task_struct *p)
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{
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return 0;
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}
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static inline void task_io_account_write(size_t bytes)
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{
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}
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static inline unsigned long task_io_get_oublock(const struct task_struct *p)
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{
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return 0;
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}
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static inline void task_io_account_cancelled_write(size_t bytes)
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{
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}
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static inline void task_io_accounting_init(struct task_io_accounting *ioac)
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{
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}
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static inline void task_blk_io_accounting_add(struct task_io_accounting *dst,
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struct task_io_accounting *src)
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{
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}
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#endif /* CONFIG_TASK_IO_ACCOUNTING */
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#ifdef CONFIG_TASK_XACCT
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static inline void task_chr_io_accounting_add(struct task_io_accounting *dst,
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struct task_io_accounting *src)
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{
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dst->rchar += src->rchar;
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dst->wchar += src->wchar;
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dst->syscr += src->syscr;
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dst->syscw += src->syscw;
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}
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#else
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static inline void task_chr_io_accounting_add(struct task_io_accounting *dst,
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struct task_io_accounting *src)
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{
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}
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#endif /* CONFIG_TASK_XACCT */
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static inline void task_io_accounting_add(struct task_io_accounting *dst,
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struct task_io_accounting *src)
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{
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task_chr_io_accounting_add(dst, src);
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task_blk_io_accounting_add(dst, src);
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}
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#endif /* __TASK_IO_ACCOUNTING_OPS_INCLUDED */
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