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https://github.com/FEX-Emu/linux.git
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btrfs: Cleanup the btrfs_parse_options for remount.
Since remount will pending the new mount options to the original mount options, which will make btrfs_parse_options check the old options then new options, causing some stupid output like "enabling XXX" following by "disable XXX". This patch will add extra check before every btrfs_info to skip the output from old options checking. Signed-off-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: Josef Bacik <jbacik@fb.com> Signed-off-by: Chris Mason <clm@fb.com>
This commit is contained in:
Qu Wenruo
Chris Mason
parent
3818aea275
commit
078025347c
137
fs/btrfs/super.c
137
fs/btrfs/super.c
@ -383,6 +383,20 @@ static match_table_t tokens = {
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{Opt_err, NULL},
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};
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#define btrfs_set_and_info(root, opt, fmt, args...) \
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{ \
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if (!btrfs_test_opt(root, opt)) \
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btrfs_info(root->fs_info, fmt, ##args); \
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btrfs_set_opt(root->fs_info->mount_opt, opt); \
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}
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#define btrfs_clear_and_info(root, opt, fmt, args...) \
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{ \
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if (btrfs_test_opt(root, opt)) \
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btrfs_info(root->fs_info, fmt, ##args); \
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btrfs_clear_opt(root->fs_info->mount_opt, opt); \
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}
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/*
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* Regular mount options parser. Everything that is needed only when
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* reading in a new superblock is parsed here.
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@ -398,6 +412,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
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int ret = 0;
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char *compress_type;
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bool compress_force = false;
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bool compress = false;
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cache_gen = btrfs_super_cache_generation(root->fs_info->super_copy);
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if (cache_gen)
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@ -437,24 +452,28 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
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*/
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break;
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case Opt_nodatasum:
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btrfs_info(root->fs_info, "setting nodatasum");
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btrfs_set_opt(info->mount_opt, NODATASUM);
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btrfs_set_and_info(root, NODATASUM,
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"setting nodatasum");
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break;
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case Opt_datasum:
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if (btrfs_test_opt(root, NODATACOW))
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btrfs_info(root->fs_info, "setting datasum, datacow enabled");
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else
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btrfs_info(root->fs_info, "setting datasum");
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if (btrfs_test_opt(root, NODATASUM)) {
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if (btrfs_test_opt(root, NODATACOW))
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btrfs_info(root->fs_info, "setting datasum, datacow enabled");
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else
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btrfs_info(root->fs_info, "setting datasum");
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}
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btrfs_clear_opt(info->mount_opt, NODATACOW);
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btrfs_clear_opt(info->mount_opt, NODATASUM);
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break;
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case Opt_nodatacow:
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if (!btrfs_test_opt(root, COMPRESS) ||
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!btrfs_test_opt(root, FORCE_COMPRESS)) {
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if (!btrfs_test_opt(root, NODATACOW)) {
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if (!btrfs_test_opt(root, COMPRESS) ||
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!btrfs_test_opt(root, FORCE_COMPRESS)) {
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btrfs_info(root->fs_info,
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"setting nodatacow, compression disabled");
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} else {
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btrfs_info(root->fs_info, "setting nodatacow");
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"setting nodatacow, compression disabled");
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} else {
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btrfs_info(root->fs_info, "setting nodatacow");
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}
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}
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btrfs_clear_opt(info->mount_opt, COMPRESS);
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btrfs_clear_opt(info->mount_opt, FORCE_COMPRESS);
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@ -462,9 +481,8 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
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btrfs_set_opt(info->mount_opt, NODATASUM);
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break;
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case Opt_datacow:
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if (btrfs_test_opt(root, NODATACOW))
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btrfs_info(root->fs_info, "setting datacow");
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btrfs_clear_opt(info->mount_opt, NODATACOW);
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btrfs_clear_and_info(root, NODATACOW,
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"setting datacow");
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break;
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case Opt_compress_force:
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case Opt_compress_force_type:
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@ -472,6 +490,7 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
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/* Fallthrough */
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case Opt_compress:
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case Opt_compress_type:
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compress = true;
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if (token == Opt_compress ||
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token == Opt_compress_force ||
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strcmp(args[0].from, "zlib") == 0) {
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@ -498,37 +517,36 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
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}
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if (compress_force) {
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btrfs_set_opt(info->mount_opt, FORCE_COMPRESS);
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btrfs_info(root->fs_info, "force %s compression",
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compress_type);
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} else if (btrfs_test_opt(root, COMPRESS)) {
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pr_info("btrfs: use %s compression\n",
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compress_type);
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btrfs_set_and_info(root, FORCE_COMPRESS,
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"force %s compression",
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compress_type);
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} else if (compress) {
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if (!btrfs_test_opt(root, COMPRESS))
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btrfs_info(root->fs_info,
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"btrfs: use %s compression\n",
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compress_type);
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}
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break;
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case Opt_ssd:
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btrfs_info(root->fs_info, "use ssd allocation scheme");
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btrfs_set_opt(info->mount_opt, SSD);
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btrfs_set_and_info(root, SSD,
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"use ssd allocation scheme");
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break;
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case Opt_ssd_spread:
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btrfs_info(root->fs_info, "use spread ssd allocation scheme");
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btrfs_set_opt(info->mount_opt, SSD);
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btrfs_set_opt(info->mount_opt, SSD_SPREAD);
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btrfs_set_and_info(root, SSD_SPREAD,
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"use spread ssd allocation scheme");
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break;
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case Opt_nossd:
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btrfs_info(root->fs_info, "not using ssd allocation scheme");
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btrfs_set_opt(info->mount_opt, NOSSD);
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btrfs_clear_and_info(root, NOSSD,
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"not using ssd allocation scheme");
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btrfs_clear_opt(info->mount_opt, SSD);
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btrfs_clear_opt(info->mount_opt, SSD_SPREAD);
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break;
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case Opt_barrier:
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if (btrfs_test_opt(root, NOBARRIER))
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btrfs_info(root->fs_info, "turning on barriers");
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btrfs_clear_opt(info->mount_opt, NOBARRIER);
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btrfs_clear_and_info(root, NOBARRIER,
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"turning on barriers");
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break;
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case Opt_nobarrier:
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btrfs_info(root->fs_info, "turning off barriers");
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btrfs_set_opt(info->mount_opt, NOBARRIER);
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btrfs_set_and_info(root, NOBARRIER,
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"turning off barriers");
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break;
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case Opt_thread_pool:
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ret = match_int(&args[0], &intarg);
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@ -580,22 +598,20 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
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root->fs_info->sb->s_flags &= ~MS_POSIXACL;
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break;
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case Opt_notreelog:
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btrfs_info(root->fs_info, "disabling tree log");
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btrfs_set_opt(info->mount_opt, NOTREELOG);
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btrfs_set_and_info(root, NOTREELOG,
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"disabling tree log");
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break;
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case Opt_treelog:
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if (btrfs_test_opt(root, NOTREELOG))
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btrfs_info(root->fs_info, "enabling tree log");
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btrfs_clear_opt(info->mount_opt, NOTREELOG);
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btrfs_clear_and_info(root, NOTREELOG,
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"enabling tree log");
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break;
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case Opt_flushoncommit:
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btrfs_info(root->fs_info, "turning on flush-on-commit");
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btrfs_set_opt(info->mount_opt, FLUSHONCOMMIT);
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btrfs_set_and_info(root, FLUSHONCOMMIT,
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"turning on flush-on-commit");
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break;
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case Opt_noflushoncommit:
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if (btrfs_test_opt(root, FLUSHONCOMMIT))
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btrfs_info(root->fs_info, "turning off flush-on-commit");
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btrfs_clear_opt(info->mount_opt, FLUSHONCOMMIT);
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btrfs_clear_and_info(root, FLUSHONCOMMIT,
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"turning off flush-on-commit");
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break;
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case Opt_ratio:
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ret = match_int(&args[0], &intarg);
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@ -611,33 +627,35 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
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}
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break;
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case Opt_discard:
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btrfs_set_opt(info->mount_opt, DISCARD);
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btrfs_set_and_info(root, DISCARD,
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"turning on discard");
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break;
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case Opt_nodiscard:
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btrfs_clear_opt(info->mount_opt, DISCARD);
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btrfs_clear_and_info(root, DISCARD,
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"turning off discard");
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break;
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case Opt_space_cache:
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btrfs_set_opt(info->mount_opt, SPACE_CACHE);
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btrfs_set_and_info(root, SPACE_CACHE,
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"enabling disk space caching");
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break;
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case Opt_rescan_uuid_tree:
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btrfs_set_opt(info->mount_opt, RESCAN_UUID_TREE);
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break;
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case Opt_no_space_cache:
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btrfs_info(root->fs_info, "disabling disk space caching");
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btrfs_clear_opt(info->mount_opt, SPACE_CACHE);
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btrfs_clear_and_info(root, SPACE_CACHE,
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"disabling disk space caching");
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break;
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case Opt_inode_cache:
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btrfs_info(root->fs_info, "enabling inode map caching");
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btrfs_set_opt(info->mount_opt, CHANGE_INODE_CACHE);
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btrfs_set_and_info(root, CHANGE_INODE_CACHE,
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"enabling inode map caching");
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break;
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case Opt_noinode_cache:
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if (btrfs_test_opt(root, CHANGE_INODE_CACHE))
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btrfs_info(root->fs_info, "disabling inode map caching");
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btrfs_clear_opt(info->mount_opt, CHANGE_INODE_CACHE);
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btrfs_clear_and_info(root, CHANGE_INODE_CACHE,
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"disabling inode map caching");
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break;
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case Opt_clear_cache:
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btrfs_info(root->fs_info, "force clearing of disk cache");
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btrfs_set_opt(info->mount_opt, CLEAR_CACHE);
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btrfs_set_and_info(root, CLEAR_CACHE,
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"force clearing of disk cache");
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break;
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case Opt_user_subvol_rm_allowed:
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btrfs_set_opt(info->mount_opt, USER_SUBVOL_RM_ALLOWED);
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@ -649,13 +667,12 @@ int btrfs_parse_options(struct btrfs_root *root, char *options)
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btrfs_clear_opt(info->mount_opt, ENOSPC_DEBUG);
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break;
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case Opt_defrag:
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btrfs_info(root->fs_info, "enabling auto defrag");
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btrfs_set_opt(info->mount_opt, AUTO_DEFRAG);
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btrfs_set_and_info(root, AUTO_DEFRAG,
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"enabling auto defrag");
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break;
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case Opt_nodefrag:
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if (btrfs_test_opt(root, AUTO_DEFRAG))
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btrfs_info(root->fs_info, "disabling auto defrag");
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btrfs_clear_opt(info->mount_opt, AUTO_DEFRAG);
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btrfs_clear_and_info(root, AUTO_DEFRAG,
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"disabling auto defrag");
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break;
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case Opt_recovery:
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btrfs_info(root->fs_info, "enabling auto recovery");
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