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| author | Josef Bacik <josef@toxicpanda.com> | 2017-09-29 21:43:48 +0200 |
|---|---|---|
| committer | David Sterba <dsterba@suse.com> | 2017-10-30 12:28:00 +0100 |
| commit | fb592373cddeb4ed6c21eef4d6063f15176ab463 (patch) | |
| tree | dbfa3110091a813f04042206ec40fc7f06afe359 /fs/btrfs/super.c | |
| parent | btrfs: get rid of sector_t and use u64 offset in submit_extent_page (diff) | |
| download | linux-fb592373cddeb4ed6c21eef4d6063f15176ab463.tar.xz linux-fb592373cddeb4ed6c21eef4d6063f15176ab463.zip | |
btrfs: add ref-verify mount option
This adds the infrastructure for turning ref verify on and off for a
mount, to be used by a later patch.
Signed-off-by: Josef Bacik <jbacik@fb.com>
Reviewed-by: David Sterba <dsterba@suse.com>
[ enhnance btrfs_print_mod_info to print if ref-verify is compiled in ]
Signed-off-by: David Sterba <dsterba@suse.com>
Diffstat (limited to 'fs/btrfs/super.c')
| -rw-r--r-- | fs/btrfs/super.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/fs/btrfs/super.c b/fs/btrfs/super.c index 770ac088dd9c..880ab4949f69 100644 --- a/fs/btrfs/super.c +++ b/fs/btrfs/super.c @@ -326,6 +326,9 @@ enum { #ifdef CONFIG_BTRFS_DEBUG Opt_fragment_data, Opt_fragment_metadata, Opt_fragment_all, #endif +#ifdef CONFIG_BTRFS_FS_REF_VERIFY + Opt_ref_verify, +#endif Opt_err, }; @@ -387,6 +390,9 @@ static const match_table_t tokens = { {Opt_fragment_metadata, "fragment=metadata"}, {Opt_fragment_all, "fragment=all"}, #endif +#ifdef CONFIG_BTRFS_FS_REF_VERIFY + {Opt_ref_verify, "ref_verify"}, +#endif {Opt_err, NULL}, }; @@ -825,6 +831,12 @@ int btrfs_parse_options(struct btrfs_fs_info *info, char *options, btrfs_set_opt(info->mount_opt, FRAGMENT_DATA); break; #endif +#ifdef CONFIG_BTRFS_FS_REF_VERIFY + case Opt_ref_verify: + btrfs_info(info, "doing ref verification"); + btrfs_set_opt(info->mount_opt, REF_VERIFY); + break; +#endif case Opt_err: btrfs_info(info, "unrecognized mount option '%s'", p); ret = -EINVAL; @@ -1305,6 +1317,8 @@ static int btrfs_show_options(struct seq_file *seq, struct dentry *dentry) if (btrfs_test_opt(info, FRAGMENT_METADATA)) seq_puts(seq, ",fragment=metadata"); #endif + if (btrfs_test_opt(info, REF_VERIFY)) + seq_puts(seq, ",ref_verify"); seq_printf(seq, ",subvolid=%llu", BTRFS_I(d_inode(dentry))->root->root_key.objectid); seq_puts(seq, ",subvol="); @@ -2319,6 +2333,9 @@ static void btrfs_print_mod_info(void) #ifdef CONFIG_BTRFS_FS_CHECK_INTEGRITY ", integrity-checker=on" #endif +#ifdef CONFIG_BTRFS_FS_REF_VERIFY + ", ref-verify=on" +#endif "\n", btrfs_crc32c_impl()); } |