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move close_range(2) into fs/file.c, fold __close_range() into it

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We never had callers for __close_range() except for close_range(2)
itself.  Nothing of that sort has appeared in four years and if any users
do show up, we can always separate those suckers again.

Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Al Viro 2024-06-02 17:48:36 -04:00
parent 1fa4ffd8e6
commit cab0515211
3 changed files with 4 additions and 20 deletions
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6
fs/file.c
View File

@ -713,7 +713,7 @@ static inline void __range_close(struct files_struct *files, unsigned int fd,
}
/**
* __close_range() - Close all file descriptors in a given range.
* sys_close_range() - Close all file descriptors in a given range.
*
* @fd: starting file descriptor to close
* @max_fd: last file descriptor to close
@ -721,8 +721,10 @@ static inline void __range_close(struct files_struct *files, unsigned int fd,
*
* This closes a range of file descriptors. All file descriptors
* from @fd up to and including @max_fd are closed.
* Currently, errors to close a given file descriptor are ignored.
*/
int __close_range(unsigned fd, unsigned max_fd, unsigned int flags)
SYSCALL_DEFINE3(close_range, unsigned int, fd, unsigned int, max_fd,
unsigned int, flags)
{
struct task_struct *me = current;
struct files_struct *cur_fds = me->files, *fds = NULL;

17
fs/open.c
View File

@ -1574,23 +1574,6 @@ SYSCALL_DEFINE1(close, unsigned int, fd)
return retval;
}
/**
* sys_close_range() - Close all file descriptors in a given range.
*
* @fd: starting file descriptor to close
* @max_fd: last file descriptor to close
* @flags: reserved for future extensions
*
* This closes a range of file descriptors. All file descriptors
* from @fd up to and including @max_fd are closed.
* Currently, errors to close a given file descriptor are ignored.
*/
SYSCALL_DEFINE3(close_range, unsigned int, fd, unsigned int, max_fd,
unsigned int, flags)
{
return __close_range(fd, max_fd, flags);
}
/*
* This routine simulates a hangup on the tty, to arrange that users
* are given clean terminals at login time.

1
include/linux/fdtable.h
View File

@ -111,7 +111,6 @@ int iterate_fd(struct files_struct *, unsigned,
const void *);
extern int close_fd(unsigned int fd);
extern int __close_range(unsigned int fd, unsigned int max_fd, unsigned int flags);
extern struct file *file_close_fd(unsigned int fd);
extern struct kmem_cache *files_cachep;