diff options
Diffstat (limited to 'fs/f2fs/sysfs.c')
| -rw-r--r-- | fs/f2fs/sysfs.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/fs/f2fs/sysfs.c b/fs/f2fs/sysfs.c index 0cd64f994068..b558b64a4c9c 100644 --- a/fs/f2fs/sysfs.c +++ b/fs/f2fs/sysfs.c @@ -10,6 +10,7 @@ #include <linux/proc_fs.h> #include <linux/f2fs_fs.h> #include <linux/seq_file.h> +#include <linux/unicode.h> #include "f2fs.h" #include "segment.h" @@ -81,6 +82,19 @@ static ssize_t unusable_show(struct f2fs_attr *a, (unsigned long long)unusable); } +static ssize_t encoding_show(struct f2fs_attr *a, + struct f2fs_sb_info *sbi, char *buf) +{ +#ifdef CONFIG_UNICODE + if (f2fs_sb_has_casefold(sbi)) + return snprintf(buf, PAGE_SIZE, "%s (%d.%d.%d)\n", + sbi->s_encoding->charset, + (sbi->s_encoding->version >> 16) & 0xff, + (sbi->s_encoding->version >> 8) & 0xff, + sbi->s_encoding->version & 0xff); +#endif + return snprintf(buf, PAGE_SIZE, "(none)"); +} static ssize_t lifetime_write_kbytes_show(struct f2fs_attr *a, struct f2fs_sb_info *sbi, char *buf) @@ -137,6 +151,9 @@ static ssize_t features_show(struct f2fs_attr *a, if (f2fs_sb_has_sb_chksum(sbi)) len += snprintf(buf + len, PAGE_SIZE - len, "%s%s", len ? ", " : "", "sb_checksum"); + if (f2fs_sb_has_casefold(sbi)) + len += snprintf(buf + len, PAGE_SIZE - len, "%s%s", + len ? ", " : "", "casefold"); len += snprintf(buf + len, PAGE_SIZE - len, "\n"); return len; } @@ -369,6 +386,7 @@ enum feat_id { FEAT_LOST_FOUND, FEAT_VERITY, FEAT_SB_CHECKSUM, + FEAT_CASEFOLD, }; static ssize_t f2fs_feature_show(struct f2fs_attr *a, @@ -387,6 +405,7 @@ static ssize_t f2fs_feature_show(struct f2fs_attr *a, case FEAT_LOST_FOUND: case FEAT_VERITY: case FEAT_SB_CHECKSUM: + case FEAT_CASEFOLD: return snprintf(buf, PAGE_SIZE, "supported\n"); } return 0; @@ -460,6 +479,7 @@ F2FS_GENERAL_RO_ATTR(lifetime_write_kbytes); F2FS_GENERAL_RO_ATTR(features); F2FS_GENERAL_RO_ATTR(current_reserved_blocks); F2FS_GENERAL_RO_ATTR(unusable); +F2FS_GENERAL_RO_ATTR(encoding); #ifdef CONFIG_FS_ENCRYPTION F2FS_FEATURE_RO_ATTR(encryption, FEAT_CRYPTO); @@ -479,6 +499,7 @@ F2FS_FEATURE_RO_ATTR(lost_found, FEAT_LOST_FOUND); F2FS_FEATURE_RO_ATTR(verity, FEAT_VERITY); #endif F2FS_FEATURE_RO_ATTR(sb_checksum, FEAT_SB_CHECKSUM); +F2FS_FEATURE_RO_ATTR(casefold, FEAT_CASEFOLD); #define ATTR_LIST(name) (&f2fs_attr_##name.attr) static struct attribute *f2fs_attrs[] = { @@ -523,6 +544,7 @@ static struct attribute *f2fs_attrs[] = { ATTR_LIST(features), ATTR_LIST(reserved_blocks), ATTR_LIST(current_reserved_blocks), + ATTR_LIST(encoding), NULL, }; ATTRIBUTE_GROUPS(f2fs); @@ -546,6 +568,7 @@ static struct attribute *f2fs_feat_attrs[] = { ATTR_LIST(verity), #endif ATTR_LIST(sb_checksum), + ATTR_LIST(casefold), NULL, }; ATTRIBUTE_GROUPS(f2fs_feat); |