Commit 16256648 authored by Jens Axboe's avatar Jens Axboe
Browse files

io_uring/fdinfo: get rid of dumping credentials 



It's a faily obscure feature, and registered credentials would for that
mostly be a static thing. Don't bother including code to dump the
personalities indices.

Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 9a109266

io_uring/fdinfo.c

+0 −38
Original line number Diff line number Diff line
@@ -15,36 +15,6 @@ 
#include "cancel.h"

#include "rsrc.h"



static __cold int io_uring_show_cred(struct seq_file *m, unsigned int id,

		const struct cred *cred)

{

	struct user_namespace *uns = seq_user_ns(m);

	struct group_info *gi;

	kernel_cap_t cap;

	int g;



	seq_printf(m, "%5d\n", id);

	seq_put_decimal_ull(m, "\tUid:\t", from_kuid_munged(uns, cred->uid));

	seq_put_decimal_ull(m, "\t\t", from_kuid_munged(uns, cred->euid));

	seq_put_decimal_ull(m, "\t\t", from_kuid_munged(uns, cred->suid));

	seq_put_decimal_ull(m, "\t\t", from_kuid_munged(uns, cred->fsuid));

	seq_put_decimal_ull(m, "\n\tGid:\t", from_kgid_munged(uns, cred->gid));

	seq_put_decimal_ull(m, "\t\t", from_kgid_munged(uns, cred->egid));

	seq_put_decimal_ull(m, "\t\t", from_kgid_munged(uns, cred->sgid));

	seq_put_decimal_ull(m, "\t\t", from_kgid_munged(uns, cred->fsgid));

	seq_puts(m, "\n\tGroups:\t");

	gi = cred->group_info;

	for (g = 0; g < gi->ngroups; g++) {

		seq_put_decimal_ull(m, g ? " " : "",

					from_kgid_munged(uns, gi->gid[g]));

	}

	seq_puts(m, "\n\tCapEff:\t");

	cap = cred->cap_effective;

	seq_put_hex_ll(m, NULL, cap.val, 16);

	seq_putc(m, '\n');

	return 0;

}



#ifdef CONFIG_NET_RX_BUSY_POLL

static __cold void common_tracking_show_fdinfo(struct io_ring_ctx *ctx,

					       struct seq_file *m,
@@ -213,14 +183,6 @@ static void __io_uring_show_fdinfo(struct io_ring_ctx *ctx, struct seq_file *m) 
		else

			seq_printf(m, "%5u: <none>\n", i);

	}

	if (!xa_empty(&ctx->personalities)) {

		unsigned long index;

		const struct cred *cred;



		seq_printf(m, "Personalities:\n");

		xa_for_each(&ctx->personalities, index, cred)

			io_uring_show_cred(m, index, cred);

	}



	seq_puts(m, "PollList:\n");

	for (i = 0; i < (1U << ctx->cancel_table.hash_bits); i++) {