file: Merge __alloc_fd into alloc_fd
The function __alloc_fd was added to support binder[1]. With binder
fixed[2] there are no more users.
As alloc_fd just calls __alloc_fd with "files=current->files",
merge them together by transforming the files parameter into a
local variable initialized to current->files.
[1] dcfadfa4ec5a ("new helper: __alloc_fd()")
[2] 44d8047f1d87 ("binder: use standard functions to allocate fds")
Acked-by: Christian Brauner <christian.brauner@ubuntu.com>
v1: https://lkml.kernel.org/r/20200817220425.9389-16-ebiederm@xmission.com
Link: https://lkml.kernel.org/r/20201120231441.29911-20-ebiederm@xmission.com
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
diff --git a/fs/file.c b/fs/file.c
index 07e25f1..6215637 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -480,9 +480,9 @@ static unsigned int find_next_fd(struct fdtable *fdt, unsigned int start)
/*
* allocate a file descriptor, mark it busy.
*/
-int __alloc_fd(struct files_struct *files,
- unsigned start, unsigned end, unsigned flags)
+static int alloc_fd(unsigned start, unsigned end, unsigned flags)
{
+ struct files_struct *files = current->files;
unsigned int fd;
int error;
struct fdtable *fdt;
@@ -538,14 +538,9 @@ int __alloc_fd(struct files_struct *files,
return error;
}
-static int alloc_fd(unsigned start, unsigned end, unsigned flags)
-{
- return __alloc_fd(current->files, start, end, flags);
-}
-
int __get_unused_fd_flags(unsigned flags, unsigned long nofile)
{
- return __alloc_fd(current->files, 0, nofile, flags);
+ return alloc_fd(0, nofile, flags);
}
int get_unused_fd_flags(unsigned flags)