From c38c5a7f2e5056555c22e7603c2151b118f3a494 Mon Sep 17 00:00:00 2001 From: Richard Weinberger Date: Thu, 12 Jul 2018 13:01:59 +0200 Subject: ubifs: Allow setting assert action as mount parameter Expose our three options to userspace. Signed-off-by: Richard Weinberger --- fs/ubifs/super.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) (limited to 'fs/ubifs/super.c') diff --git a/fs/ubifs/super.c b/fs/ubifs/super.c index df73b0e1c2f7..c31e7b4f1e1c 100644 --- a/fs/ubifs/super.c +++ b/fs/ubifs/super.c @@ -445,6 +445,7 @@ static int ubifs_show_options(struct seq_file *s, struct dentry *root) ubifs_compr_name(c, c->mount_opts.compr_type)); } + seq_printf(s, ",assert=%s", ubifs_assert_action_name(c)); seq_printf(s, ",ubi=%d,vol=%d", c->vi.ubi_num, c->vi.vol_id); return 0; @@ -922,6 +923,7 @@ static int check_volume_empty(struct ubifs_info *c) * Opt_chk_data_crc: check CRCs when reading data nodes * Opt_no_chk_data_crc: do not check CRCs when reading data nodes * Opt_override_compr: override default compressor + * Opt_assert: set ubifs_assert() action * Opt_err: just end of array marker */ enum { @@ -932,6 +934,7 @@ enum { Opt_chk_data_crc, Opt_no_chk_data_crc, Opt_override_compr, + Opt_assert, Opt_ignore, Opt_err, }; @@ -946,6 +949,7 @@ static const match_table_t tokens = { {Opt_override_compr, "compr=%s"}, {Opt_ignore, "ubi=%s"}, {Opt_ignore, "vol=%s"}, + {Opt_assert, "assert=%s"}, {Opt_err, NULL}, }; @@ -1046,6 +1050,26 @@ static int ubifs_parse_options(struct ubifs_info *c, char *options, c->default_compr = c->mount_opts.compr_type; break; } + case Opt_assert: + { + char *act = match_strdup(&args[0]); + + if (!act) + return -ENOMEM; + if (!strcmp(act, "report")) + c->assert_action = ASSACT_REPORT; + else if (!strcmp(act, "read-only")) + c->assert_action = ASSACT_RO; + else if (!strcmp(act, "panic")) + c->assert_action = ASSACT_PANIC; + else { + ubifs_err(c, "unknown assert action \"%s\"", act); + kfree(act); + return -EINVAL; + } + kfree(act); + break; + } case Opt_ignore: break; default: -- cgit v1.2.3