mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
4ea33a976b
Make sure the async io-wq workers inherit the loginuid and sessionid from the original task, and restore them to unset once we're done with the async work item. While at it, disable the ability for kernel threads to write to their own loginuid. Signed-off-by: Jens Axboe <axboe@kernel.dk>
74 lines
1.6 KiB
C
74 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _LINUX_IO_URING_H
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#define _LINUX_IO_URING_H
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#include <linux/sched.h>
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#include <linux/xarray.h>
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struct io_identity {
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struct files_struct *files;
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struct mm_struct *mm;
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#ifdef CONFIG_BLK_CGROUP
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struct cgroup_subsys_state *blkcg_css;
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#endif
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const struct cred *creds;
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struct nsproxy *nsproxy;
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struct fs_struct *fs;
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unsigned long fsize;
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#ifdef CONFIG_AUDIT
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kuid_t loginuid;
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unsigned int sessionid;
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#endif
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refcount_t count;
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};
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struct io_uring_task {
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/* submission side */
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struct xarray xa;
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struct wait_queue_head wait;
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struct file *last;
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struct percpu_counter inflight;
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struct io_identity __identity;
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struct io_identity *identity;
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bool in_idle;
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};
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#if defined(CONFIG_IO_URING)
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struct sock *io_uring_get_socket(struct file *file);
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void __io_uring_task_cancel(void);
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void __io_uring_files_cancel(struct files_struct *files);
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void __io_uring_free(struct task_struct *tsk);
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static inline void io_uring_task_cancel(void)
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{
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if (current->io_uring && !xa_empty(¤t->io_uring->xa))
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__io_uring_task_cancel();
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}
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static inline void io_uring_files_cancel(struct files_struct *files)
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{
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if (current->io_uring && !xa_empty(¤t->io_uring->xa))
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__io_uring_files_cancel(files);
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}
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static inline void io_uring_free(struct task_struct *tsk)
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{
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if (tsk->io_uring)
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__io_uring_free(tsk);
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}
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#else
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static inline struct sock *io_uring_get_socket(struct file *file)
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{
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return NULL;
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}
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static inline void io_uring_task_cancel(void)
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{
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}
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static inline void io_uring_files_cancel(struct files_struct *files)
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{
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}
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static inline void io_uring_free(struct task_struct *tsk)
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{
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}
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#endif
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#endif
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