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| author | Christoph Hellwig <hch@lst.de> | 2021-11-26 12:58:05 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-11-29 06:41:29 -0700 |
| commit | 88c9a2ce520ba381bb70658c80ec704f4d60f728 (patch) | |
| tree | bec031fdc97a07949add2831079700f163184f95 /include/linux/iocontext.h | |
| parent | e92a559e6c9db93662a6071f1ecbfa2c1c3be5d3 (diff) | |
| download | linux-stable-88c9a2ce520ba381bb70658c80ec704f4d60f728.tar.gz linux-stable-88c9a2ce520ba381bb70658c80ec704f4d60f728.tar.bz2 linux-stable-88c9a2ce520ba381bb70658c80ec704f4d60f728.zip | |
fork: move copy_io to block/blk-ioc.c
Move the copying of the I/O context to the block layer as that is where
we can use the proper low-level interfaces.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20211126115817.2087431-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'include/linux/iocontext.h')
| -rw-r--r-- | include/linux/iocontext.h | 23 |
1 files changed, 13 insertions, 10 deletions
diff --git a/include/linux/iocontext.h b/include/linux/iocontext.h index 0a9dc40b7be8..bcd47d104d8e 100644 --- a/include/linux/iocontext.h +++ b/include/linux/iocontext.h @@ -129,14 +129,6 @@ static inline void get_io_context_active(struct io_context *ioc) atomic_inc(&ioc->active_ref); } -static inline void ioc_task_link(struct io_context *ioc) -{ - get_io_context_active(ioc); - - WARN_ON_ONCE(atomic_read(&ioc->nr_tasks) <= 0); - atomic_inc(&ioc->nr_tasks); -} - struct task_struct; #ifdef CONFIG_BLOCK void put_io_context(struct io_context *ioc); @@ -144,10 +136,21 @@ void put_io_context_active(struct io_context *ioc); void exit_io_context(struct task_struct *task); struct io_context *get_task_io_context(struct task_struct *task, gfp_t gfp_flags, int node); +int __copy_io(unsigned long clone_flags, struct task_struct *tsk); +static inline int copy_io(unsigned long clone_flags, struct task_struct *tsk) +{ + if (!current->io_context) + return 0; + return __copy_io(clone_flags, tsk); +} #else struct io_context; static inline void put_io_context(struct io_context *ioc) { } static inline void exit_io_context(struct task_struct *task) { } -#endif +static inline int copy_io(unsigned long clone_flags, struct task_struct *tsk) +{ + return 0; +} +#endif /* CONFIG_BLOCK */ -#endif +#endif /* IOCONTEXT_H */ |