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-rw-r--r--fs/bcachefs/thread_with_file.h76
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diff --git a/fs/bcachefs/thread_with_file.h b/fs/bcachefs/thread_with_file.h
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index af54ea8f5b0f..000000000000
--- a/fs/bcachefs/thread_with_file.h
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@@ -1,76 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _BCACHEFS_THREAD_WITH_FILE_H
-#define _BCACHEFS_THREAD_WITH_FILE_H
-
-#include "thread_with_file_types.h"
-
-/*
- * Thread with file: Run a kthread and connect it to a file descriptor, so that
- * it can be interacted with via fd read/write methods and closing the file
- * descriptor stops the kthread.
- *
- * We have two different APIs:
- *
- * thread_with_file, the low level version.
- * You get to define the full file_operations, including your release function,
- * which means that you must call bch2_thread_with_file_exit() from your
- * .release method
- *
- * thread_with_stdio, the higher level version
- * This implements full piping of input and output, including .poll.
- *
- * Notes on behaviour:
- * - kthread shutdown behaves like writing or reading from a pipe that has been
- * closed
- * - Input and output buffers are 4096 bytes, although buffers may in some
- * situations slightly exceed that limit so as to avoid chopping off a
- * message in the middle in nonblocking mode.
- * - Input/output buffers are lazily allocated, with GFP_NOWAIT allocations -
- * should be fine but might change in future revisions.
- * - Output buffer may grow past 4096 bytes to deal with messages that are
- * bigger than 4096 bytes
- * - Writing may be done blocking or nonblocking; in nonblocking mode, we only
- * drop entire messages.
- *
- * To write, use stdio_redirect_printf()
- * To read, use stdio_redirect_read() or stdio_redirect_readline()
- */
-
-struct task_struct;
-
-struct thread_with_file {
- struct task_struct *task;
- int ret;
- bool done;
-};
-
-void bch2_thread_with_file_exit(struct thread_with_file *);
-int bch2_run_thread_with_file(struct thread_with_file *,
- const struct file_operations *,
- int (*fn)(void *));
-
-struct thread_with_stdio;
-
-struct thread_with_stdio_ops {
- void (*exit)(struct thread_with_stdio *);
- int (*fn)(struct thread_with_stdio *);
- long (*unlocked_ioctl)(struct thread_with_stdio *, unsigned int, unsigned long);
-};
-
-struct thread_with_stdio {
- struct thread_with_file thr;
- struct stdio_redirect stdio;
- const struct thread_with_stdio_ops *ops;
-};
-
-int bch2_run_thread_with_stdio(struct thread_with_stdio *,
- const struct thread_with_stdio_ops *);
-int bch2_run_thread_with_stdout(struct thread_with_stdio *,
- const struct thread_with_stdio_ops *);
-int bch2_stdio_redirect_read(struct stdio_redirect *, char *, size_t);
-int bch2_stdio_redirect_readline(struct stdio_redirect *, char *, size_t);
-
-__printf(3, 0) ssize_t bch2_stdio_redirect_vprintf(struct stdio_redirect *, bool, const char *, va_list);
-__printf(3, 4) ssize_t bch2_stdio_redirect_printf(struct stdio_redirect *, bool, const char *, ...);
-
-#endif /* _BCACHEFS_THREAD_WITH_FILE_H */