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fs/file: more unsigned file descriptors

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Propagate unsignedness for grand total of 149 bytes:

	$ ./scripts/bloat-o-meter ../vmlinux-000 ../obj/vmlinux
	add/remove: 0/0 grow/shrink: 0/10 up/down: 0/-149 (-149)
	function                                     old     new   delta
	set_close_on_exec                             99      98      -1
	put_files_struct                             201     200      -1
	get_close_on_exec                             59      58      -1
	do_prlimit                                   498     497      -1
	do_execveat_common.isra                     1662    1661      -1
	__close_fd                                   178     173      -5
	do_dup2                                      219     204     -15
	seq_show                                     685     660     -25
	__alloc_fd                                   384     357     -27
	dup_fd                                       718     646     -72

It mostly comes from converting "unsigned int" to "long" for bit operations.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
This commit is contained in:
Alexey Dobriyan 2016-09-02 00:38:52 +03:00 • committed by Al Viro
parent 85e7340f21
commit 9b80a184ea
4 changed files with 23 additions and 23 deletions
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6
include/linux/fdtable.h
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@ -30,12 +30,12 @@ struct fdtable {
struct rcu_head rcu;
};
static inline bool close_on_exec(int fd, const struct fdtable *fdt)
static inline bool close_on_exec(unsigned int fd, const struct fdtable *fdt)
{
return test_bit(fd, fdt->close_on_exec);
}
static inline bool fd_is_open(int fd, const struct fdtable *fdt)
static inline bool fd_is_open(unsigned int fd, const struct fdtable *fdt)
{
return test_bit(fd, fdt->open_fds);
}
@ -57,7 +57,7 @@ struct files_struct {
* written part on a separate cache line in SMP
*/
spinlock_t file_lock ____cacheline_aligned_in_smp;
int next_fd;
unsigned int next_fd;
unsigned long close_on_exec_init[1];
unsigned long open_fds_init[1];
unsigned long full_fds_bits_init[1];