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io_uring: remove files pointer in cancellation functions 

Bugzilla: https://bugzilla.redhat.com/2120352

commit f552a27afe67f05c47bb0c33b92af2a23b684c31
Author: Hao Xu <haoxu@linux.alibaba.com>
Date:   Thu Aug 12 12:14:35 2021 +0800

    io_uring: remove files pointer in cancellation functions

    When doing cancellation, we use a parameter to indicate where it's from
    do_exit or exec. So a boolean value is good enough for this, remove the
    struct files* as it is not necessary.

    Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
    [axboe: fixup io_uring_files_cancel for !CONFIG_IO_URING]
    Signed-off-by: Jens Axboe <axboe@kernel.dk>

Signed-off-by: Chris von Recklinghausen <crecklin@redhat.com>
This commit is contained in:
Chris von Recklinghausen 2022-10-12 07:08:12 -04:00
parent fdcf7eaafa
commit fde778f2ad
3 changed files with 8 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
fs/io_uring.c
View File

@ -9242,9 +9242,9 @@ static void io_uring_cancel_generic(bool cancel_all, struct io_sq_data *sqd)
}
}
void __io_uring_cancel(struct files_struct *files)
void __io_uring_cancel(bool cancel_all)
{
io_uring_cancel_generic(!files, NULL);
io_uring_cancel_generic(cancel_all, NULL);
}
static void *io_uring_validate_mmap_request(struct file *file,

10
include/linux/io_uring.h
View File

@ -7,18 +7,18 @@
#if defined(CONFIG_IO_URING)
struct sock *io_uring_get_socket(struct file *file);
void __io_uring_cancel(struct files_struct *files);
void __io_uring_cancel(bool cancel_all);
void __io_uring_free(struct task_struct *tsk);
static inline void io_uring_files_cancel(struct files_struct *files)
static inline void io_uring_files_cancel(void)
{
if (current->io_uring)
__io_uring_cancel(files);
__io_uring_cancel(false);
}
static inline void io_uring_task_cancel(void)
{
if (current->io_uring)
__io_uring_cancel(NULL);
__io_uring_cancel(true);
}
static inline void io_uring_free(struct task_struct *tsk)
{
@ -33,7 +33,7 @@ static inline struct sock *io_uring_get_socket(struct file *file)
static inline void io_uring_task_cancel(void)
{
}
static inline void io_uring_files_cancel(struct files_struct *files)
static inline void io_uring_files_cancel(void)
{
}
static inline void io_uring_free(struct task_struct *tsk)

2
kernel/exit.c
View File

@ -778,7 +778,7 @@ void __noreturn do_exit(long code)
schedule();
}
io_uring_files_cancel(tsk->files);
io_uring_files_cancel();
exit_signals(tsk); /* sets PF_EXITING */
/* sync mm's RSS info before statistics gathering */