threeeye
bc1d038eac
Squashed backup commit (no shallow-clone history issues) of xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2 branch, upstream commit 9eece662e) plus all fixes applied to get everpal_defconfig building clean against a modern (GCC 15.2.0) toolchain -- see the previous commit message on the lineage-23.2 branch (also in this repo history is not available here since this is a squashed snapshot; full incremental history lives in the local DL380 checkout and the upstream GitHub remote). Upstream: https://github.com/xiaomi-mt6833-dev/kernel_xiaomi_mt6833 (lineage-23.2)
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* task_io_accounting: a structure which is used for recording a single task's
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* IO statistics.
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*
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* Don't include this header file directly - it is designed to be dragged in via
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* sched.h.
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*
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* Blame Andrew Morton for all this.
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*/
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struct task_io_accounting {
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#ifdef CONFIG_TASK_XACCT
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/* bytes read */
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u64 rchar;
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/* bytes written */
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u64 wchar;
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/* # of read syscalls */
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u64 syscr;
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/* # of write syscalls */
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u64 syscw;
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/* # of fsync syscalls */
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u64 syscfs;
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#endif /* CONFIG_TASK_XACCT */
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#ifdef CONFIG_TASK_IO_ACCOUNTING
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/*
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* The number of bytes which this task has caused to be read from
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* storage.
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*/
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u64 read_bytes;
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/*
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* The number of bytes which this task has caused, or shall cause to be
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* written to disk.
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*/
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u64 write_bytes;
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/*
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* A task can cause "negative" IO too. If this task truncates some
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* dirty pagecache, some IO which another task has been accounted for
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* (in its write_bytes) will not be happening. We _could_ just
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* subtract that from the truncating task's write_bytes, but there is
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* information loss in doing that.
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*/
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u64 cancelled_write_bytes;
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#endif /* CONFIG_TASK_IO_ACCOUNTING */
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};
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