From: Hongbo Li <lihongbo22@xxxxxxxxxx>
In handle_mount_opt, we use fs_parameter to parse each option.
However we're still using the old API to get the options string.
Using fsparams parse_options allows us to remove many of the Opt_
enums, so remove them.
The checkpoint disable cap (or percent) involves rather complex
parsing; we retain the old match_table mechanism for this, which
handles it well.
There are some changes about parsing options:
1. For `active_logs`, `inline_xattr_size` and `fault_injection`,
we use s32 type according the internal structure to record the
option's value.
Signed-off-by: Hongbo Li <lihongbo22@xxxxxxxxxx>
[sandeen: forward port, minor fixes and updates]
Signed-off-by: Eric Sandeen <sandeen@xxxxxxxxxx>
---
fs/f2fs/super.c | 1063 ++++++++++++++++++-----------------------------
1 file changed, 407 insertions(+), 656 deletions(-)
diff --git a/fs/f2fs/super.c b/fs/f2fs/super.c
index c3623e052cde..8343dc2a515d 100644
--- a/fs/f2fs/super.c
+++ b/fs/f2fs/super.c
@@ -27,6 +27,7 @@
#include <linux/part_stat.h>
#include <linux/zstd.h>
#include <linux/lz4.h>
+#include <linux/ctype.h>
#include <linux/fs_parser.h>
#include "f2fs.h"
@@ -122,29 +123,20 @@ enum {
Opt_disable_roll_forward,
Opt_norecovery,
Opt_discard,
- Opt_nodiscard,
Opt_noheap,
Opt_heap,
Opt_user_xattr,
- Opt_nouser_xattr,
Opt_acl,
- Opt_noacl,
Opt_active_logs,
Opt_disable_ext_identify,
Opt_inline_xattr,
- Opt_noinline_xattr,
Opt_inline_xattr_size,
Opt_inline_data,
Opt_inline_dentry,
- Opt_noinline_dentry,
Opt_flush_merge,
- Opt_noflush_merge,
Opt_barrier,
- Opt_nobarrier,
Opt_fastboot,
Opt_extent_cache,
- Opt_noextent_cache,
- Opt_noinline_data,
Opt_data_flush,
Opt_reserve_root,
Opt_resgid,
@@ -153,21 +145,13 @@ enum {
Opt_fault_injection,
Opt_fault_type,
Opt_lazytime,
- Opt_nolazytime,
Opt_quota,
- Opt_noquota,
Opt_usrquota,
Opt_grpquota,
Opt_prjquota,
Opt_usrjquota,
Opt_grpjquota,
Opt_prjjquota,
- Opt_offusrjquota,
- Opt_offgrpjquota,
- Opt_offprjjquota,
- Opt_jqfmt_vfsold,
- Opt_jqfmt_vfsv0,
- Opt_jqfmt_vfsv1,
Opt_alloc,
Opt_fsync,
Opt_test_dummy_encryption,
@@ -177,17 +161,15 @@ enum {
Opt_checkpoint_disable_cap_perc,
Opt_checkpoint_enable,
Opt_checkpoint_merge,
- Opt_nocheckpoint_merge,
Opt_compress_algorithm,
Opt_compress_log_size,
- Opt_compress_extension,
Opt_nocompress_extension,
+ Opt_compress_extension,
Opt_compress_chksum,
Opt_compress_mode,
Opt_compress_cache,
Opt_atgc,
Opt_gc_merge,
- Opt_nogc_merge,
Opt_discard_unit,
Opt_memory_mode,
Opt_age_extent_cache,
@@ -317,83 +299,12 @@ static const struct fs_parameter_spec f2fs_param_specs[] = {
{}
};
-static match_table_t f2fs_tokens = {
- {Opt_gc_background, "background_gc=%s"},
- {Opt_disable_roll_forward, "disable_roll_forward"},
- {Opt_norecovery, "norecovery"},
- {Opt_discard, "discard"},
- {Opt_nodiscard, "nodiscard"},
- {Opt_noheap, "no_heap"},
- {Opt_heap, "heap"},
- {Opt_user_xattr, "user_xattr"},
- {Opt_nouser_xattr, "nouser_xattr"},
- {Opt_acl, "acl"},
- {Opt_noacl, "noacl"},
- {Opt_active_logs, "active_logs=%u"},
- {Opt_disable_ext_identify, "disable_ext_identify"},
- {Opt_inline_xattr, "inline_xattr"},
- {Opt_noinline_xattr, "noinline_xattr"},
- {Opt_inline_xattr_size, "inline_xattr_size=%u"},
- {Opt_inline_data, "inline_data"},
- {Opt_inline_dentry, "inline_dentry"},
- {Opt_noinline_dentry, "noinline_dentry"},
- {Opt_flush_merge, "flush_merge"},
- {Opt_noflush_merge, "noflush_merge"},
- {Opt_barrier, "barrier"},
- {Opt_nobarrier, "nobarrier"},
- {Opt_fastboot, "fastboot"},
- {Opt_extent_cache, "extent_cache"},
- {Opt_noextent_cache, "noextent_cache"},
- {Opt_noinline_data, "noinline_data"},
- {Opt_data_flush, "data_flush"},
- {Opt_reserve_root, "reserve_root=%u"},
- {Opt_resgid, "resgid=%u"},
- {Opt_resuid, "resuid=%u"},
- {Opt_mode, "mode=%s"},
- {Opt_fault_injection, "fault_injection=%u"},
- {Opt_fault_type, "fault_type=%u"},
- {Opt_lazytime, "lazytime"},
- {Opt_nolazytime, "nolazytime"},
- {Opt_quota, "quota"},
- {Opt_noquota, "noquota"},
- {Opt_usrquota, "usrquota"},
- {Opt_grpquota, "grpquota"},
- {Opt_prjquota, "prjquota"},
- {Opt_usrjquota, "usrjquota=%s"},
- {Opt_grpjquota, "grpjquota=%s"},
- {Opt_prjjquota, "prjjquota=%s"},
- {Opt_offusrjquota, "usrjquota="},
- {Opt_offgrpjquota, "grpjquota="},
- {Opt_offprjjquota, "prjjquota="},
- {Opt_jqfmt_vfsold, "jqfmt=vfsold"},
- {Opt_jqfmt_vfsv0, "jqfmt=vfsv0"},
- {Opt_jqfmt_vfsv1, "jqfmt=vfsv1"},
- {Opt_alloc, "alloc_mode=%s"},
- {Opt_fsync, "fsync_mode=%s"},
- {Opt_test_dummy_encryption, "test_dummy_encryption=%s"},
- {Opt_test_dummy_encryption, "test_dummy_encryption"},
- {Opt_inlinecrypt, "inlinecrypt"},
- {Opt_checkpoint_disable, "checkpoint=disable"},
- {Opt_checkpoint_disable_cap, "checkpoint=disable:%u"},
- {Opt_checkpoint_disable_cap_perc, "checkpoint=disable:%u%%"},
- {Opt_checkpoint_enable, "checkpoint=enable"},
- {Opt_checkpoint_merge, "checkpoint_merge"},
- {Opt_nocheckpoint_merge, "nocheckpoint_merge"},
- {Opt_compress_algorithm, "compress_algorithm=%s"},
- {Opt_compress_log_size, "compress_log_size=%u"},
- {Opt_compress_extension, "compress_extension=%s"},
- {Opt_nocompress_extension, "nocompress_extension=%s"},
- {Opt_compress_chksum, "compress_chksum"},
- {Opt_compress_mode, "compress_mode=%s"},
- {Opt_compress_cache, "compress_cache"},
- {Opt_atgc, "atgc"},
- {Opt_gc_merge, "gc_merge"},
- {Opt_nogc_merge, "nogc_merge"},
- {Opt_discard_unit, "discard_unit=%s"},
- {Opt_memory_mode, "memory=%s"},
- {Opt_age_extent_cache, "age_extent_cache"},
- {Opt_errors, "errors=%s"},
- {Opt_nat_bits, "nat_bits"},
+/* Resort to a match_table for this interestingly formatted option */
+static match_table_t f2fs_checkpoint_tokens = {
+ {Opt_checkpoint_disable, "disable"},
+ {Opt_checkpoint_disable_cap, "disable:%u"},
+ {Opt_checkpoint_disable_cap_perc, "disable:%u%%"},
+ {Opt_checkpoint_enable, "enable"},
{Opt_err, NULL},
};
@@ -509,7 +420,7 @@ static void init_once(void *foo)
static const char * const quotatypes[] = INITQFNAMES;
#define QTYPE2NAME(t) (quotatypes[t])
static int f2fs_set_qf_name(struct f2fs_sb_info *sbi, int qtype,
- substring_t *args)
+ struct fs_parameter *param)
{
struct super_block *sb = sbi->sb;
char *qname;
@@ -524,7 +435,7 @@ static int f2fs_set_qf_name(struct f2fs_sb_info *sbi, int qtype,
return 0;
}
- qname = match_strdup(args);
+ qname = kmemdup_nul(param->string, param->size, GFP_KERNEL);
if (!qname) {
f2fs_err(sbi, "Not enough memory for storing quotafile name");
return -ENOMEM;
@@ -609,14 +520,9 @@ static int f2fs_check_quota_options(struct f2fs_sb_info *sbi)
#endif
static int f2fs_set_test_dummy_encryption(struct f2fs_sb_info *sbi,
- const char *opt,
- const substring_t *arg,
+ const struct fs_parameter *param,
bool is_remount)
{
- struct fs_parameter param = {
- .type = fs_value_is_string,
- .string = arg->from ? arg->from : "",
- };
struct fscrypt_dummy_policy *policy =
&F2FS_OPTION(sbi).dummy_enc_policy;
int err;
@@ -642,17 +548,17 @@ static int f2fs_set_test_dummy_encryption(struct f2fs_sb_info *sbi,
return -EINVAL;
}
- err = fscrypt_parse_test_dummy_encryption(¶m, policy);
+ err = fscrypt_parse_test_dummy_encryption(param, policy);
if (err) {
if (err == -EEXIST)
f2fs_warn(sbi,
"Can't change test_dummy_encryption on remount");
else if (err == -EINVAL)
f2fs_warn(sbi, "Value of option \"%s\" is unrecognized",
- opt);
+ param->key);
else
f2fs_warn(sbi, "Error processing option \"%s\" [%d]",
- opt, err);
+ param->key, err);
return -EINVAL;
}
f2fs_warn(sbi, "Test dummy encryption mode enabled");
@@ -795,373 +701,263 @@ static int f2fs_set_zstd_level(struct f2fs_sb_info *sbi, const char *str)
#endif
#endif
-static int parse_options(struct f2fs_sb_info *sbi, char *options, bool is_remount)
+static int handle_mount_opt(struct fs_context *fc, struct fs_parameter *param)
{
- substring_t args[MAX_OPT_ARGS];
+ struct f2fs_sb_info *sbi = fc->s_fs_info;
#ifdef CONFIG_F2FS_FS_COMPRESSION
unsigned char (*ext)[F2FS_EXTENSION_LEN];
unsigned char (*noext)[F2FS_EXTENSION_LEN];
int ext_cnt, noext_cnt;
#endif
- char *p, *name;
- int arg = 0;
- kuid_t uid;
- kgid_t gid;
- int ret;
+ substring_t args[MAX_OPT_ARGS];
+ struct fs_parse_result result;
+ int is_remount;
+ char *name;
+ int token, ret, arg;
- if (!options)
- return 0;
+ token = fs_parse(fc, f2fs_param_specs, param, &result);
+ if (token < 0)
+ return token;
- while ((p = strsep(&options, ",")) != NULL) {
- int token;
+ is_remount = fc->purpose == FS_CONTEXT_FOR_RECONFIGURE;
- if (!*p)
- continue;
- /*
- * Initialize args struct so we know whether arg was
- * found; some options take optional arguments.
- */
- args[0].to = args[0].from = NULL;
- token = match_token(p, f2fs_tokens, args);
-
- switch (token) {
- case Opt_gc_background:
- name = match_strdup(&args[0]);
-
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "on")) {
- F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_ON;
- } else if (!strcmp(name, "off")) {
- if (f2fs_sb_has_blkzoned(sbi)) {
- f2fs_warn(sbi, "zoned devices need bggc");
- kfree(name);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_OFF;
- } else if (!strcmp(name, "sync")) {
- F2FS_OPTION(sbi).bggc_mode = BGGC_MODE_SYNC;
- } else {
- kfree(name);
+ switch (token) {
+ case Opt_gc_background:
+ F2FS_OPTION(sbi).bggc_mode = result.uint_32;
+ break;
+ case Opt_disable_roll_forward:
+ set_opt(sbi, DISABLE_ROLL_FORWARD);
+ break;
+ case Opt_norecovery:
+ /* requires ro mount, checked in f2fs_validate_options */
+ set_opt(sbi, NORECOVERY);
+ break;
+ case Opt_discard:
+ if (result.negated) {
+ if (f2fs_hw_should_discard(sbi)) {
+ f2fs_warn(sbi, "discard is required for zoned block devices");
return -EINVAL;
}
- kfree(name);
- break;
- case Opt_disable_roll_forward:
- set_opt(sbi, DISABLE_ROLL_FORWARD);
- break;
- case Opt_norecovery:
- /* requires ro mount, checked in f2fs_default_check */
- set_opt(sbi, NORECOVERY);
- break;
- case Opt_discard:
+ clear_opt(sbi, DISCARD);
+ } else {
if (!f2fs_hw_support_discard(sbi)) {
f2fs_warn(sbi, "device does not support discard");
break;
}
set_opt(sbi, DISCARD);
- break;
- case Opt_nodiscard:
- if (f2fs_hw_should_discard(sbi)) {
- f2fs_warn(sbi, "discard is required for zoned block devices");
- return -EINVAL;
- }
- clear_opt(sbi, DISCARD);
- break;
- case Opt_noheap:
- case Opt_heap:
- f2fs_warn(sbi, "heap/no_heap options were deprecated");
- break;
+ }
+ break;
+ case Opt_noheap:
+ case Opt_heap:
+ f2fs_warn(sbi, "heap/no_heap options were deprecated");
+ break;
#ifdef CONFIG_F2FS_FS_XATTR
- case Opt_user_xattr:
- set_opt(sbi, XATTR_USER);
- break;
- case Opt_nouser_xattr:
+ case Opt_user_xattr:
+ if (result.negated)
clear_opt(sbi, XATTR_USER);
- break;
- case Opt_inline_xattr:
- set_opt(sbi, INLINE_XATTR);
- break;
- case Opt_noinline_xattr:
+ else
+ set_opt(sbi, XATTR_USER);
+ break;
+ case Opt_inline_xattr:
+ if (result.negated)
clear_opt(sbi, INLINE_XATTR);
- break;
- case Opt_inline_xattr_size:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- set_opt(sbi, INLINE_XATTR_SIZE);
- F2FS_OPTION(sbi).inline_xattr_size = arg;
- break;
+ else
+ set_opt(sbi, INLINE_XATTR);
+ break;
+ case Opt_inline_xattr_size:
+ set_opt(sbi, INLINE_XATTR_SIZE);
+ F2FS_OPTION(sbi).inline_xattr_size = result.int_32;
+ break;
#else
- case Opt_user_xattr:
- case Opt_nouser_xattr:
- case Opt_inline_xattr:
- case Opt_noinline_xattr:
- case Opt_inline_xattr_size:
- f2fs_info(sbi, "xattr options not supported");
- break;
+ case Opt_user_xattr:
+ case Opt_inline_xattr:
+ case Opt_inline_xattr_size:
+ f2fs_info(sbi, "%s options not supported", param->key);
+ break;
#endif
#ifdef CONFIG_F2FS_FS_POSIX_ACL
- case Opt_acl:
- set_opt(sbi, POSIX_ACL);
- break;
- case Opt_noacl:
+ case Opt_acl:
+ if (result.negated)
clear_opt(sbi, POSIX_ACL);
- break;
+ else
+ set_opt(sbi, POSIX_ACL);
+ break;
#else
- case Opt_acl:
- case Opt_noacl:
- f2fs_info(sbi, "acl options not supported");
- break;
+ case Opt_acl:
+ f2fs_info(sbi, "%s options not supported", param->key);
+ break;
#endif
- case Opt_active_logs:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- if (arg != 2 && arg != 4 &&
- arg != NR_CURSEG_PERSIST_TYPE)
- return -EINVAL;
- F2FS_OPTION(sbi).active_logs = arg;
- break;
- case Opt_disable_ext_identify:
- set_opt(sbi, DISABLE_EXT_IDENTIFY);
- break;
- case Opt_inline_data:
+ case Opt_active_logs:
+ if (result.int_32 != 2 && result.int_32 != 4 &&
+ result.int_32 != NR_CURSEG_PERSIST_TYPE)
+ return -EINVAL;
+ F2FS_OPTION(sbi).active_logs = result.int_32;
+ break;
+ case Opt_disable_ext_identify:
+ set_opt(sbi, DISABLE_EXT_IDENTIFY);
+ break;
+ case Opt_inline_data:
+ if (result.negated)
+ clear_opt(sbi, INLINE_DATA);
+ else
set_opt(sbi, INLINE_DATA);
- break;
- case Opt_inline_dentry:
- set_opt(sbi, INLINE_DENTRY);
- break;
- case Opt_noinline_dentry:
+ break;
+ case Opt_inline_dentry:
+ if (result.negated)
clear_opt(sbi, INLINE_DENTRY);
- break;
- case Opt_flush_merge:
- set_opt(sbi, FLUSH_MERGE);
- break;
- case Opt_noflush_merge:
+ else
+ set_opt(sbi, INLINE_DENTRY);
+ break;
+ case Opt_flush_merge:
+ if (result.negated)
clear_opt(sbi, FLUSH_MERGE);
- break;
- case Opt_nobarrier:
+ else
+ set_opt(sbi, FLUSH_MERGE);
+ break;
+ case Opt_barrier:
+ if (result.negated)
set_opt(sbi, NOBARRIER);
- break;
- case Opt_barrier:
+ else
clear_opt(sbi, NOBARRIER);
- break;
- case Opt_fastboot:
- set_opt(sbi, FASTBOOT);
- break;
- case Opt_extent_cache:
- set_opt(sbi, READ_EXTENT_CACHE);
- break;
- case Opt_noextent_cache:
+ break;
+ case Opt_fastboot:
+ set_opt(sbi, FASTBOOT);
+ break;
+ case Opt_extent_cache:
+ if (result.negated) {
if (f2fs_sb_has_device_alias(sbi)) {
f2fs_err(sbi, "device aliasing requires extent cache");
return -EINVAL;
}
clear_opt(sbi, READ_EXTENT_CACHE);
- break;
- case Opt_noinline_data:
- clear_opt(sbi, INLINE_DATA);
- break;
- case Opt_data_flush:
- set_opt(sbi, DATA_FLUSH);
- break;
- case Opt_reserve_root:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- if (test_opt(sbi, RESERVE_ROOT)) {
- f2fs_info(sbi, "Preserve previous reserve_root=%u",
- F2FS_OPTION(sbi).root_reserved_blocks);
- } else {
- F2FS_OPTION(sbi).root_reserved_blocks = arg;
- set_opt(sbi, RESERVE_ROOT);
- }
- break;
- case Opt_resuid:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- uid = make_kuid(current_user_ns(), arg);
- if (!uid_valid(uid)) {
- f2fs_err(sbi, "Invalid uid value %d", arg);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).s_resuid = uid;
- break;
- case Opt_resgid:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- gid = make_kgid(current_user_ns(), arg);
- if (!gid_valid(gid)) {
- f2fs_err(sbi, "Invalid gid value %d", arg);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).s_resgid = gid;
- break;
- case Opt_mode:
- name = match_strdup(&args[0]);
-
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "adaptive")) {
- F2FS_OPTION(sbi).fs_mode = FS_MODE_ADAPTIVE;
- } else if (!strcmp(name, "lfs")) {
- F2FS_OPTION(sbi).fs_mode = FS_MODE_LFS;
- } else if (!strcmp(name, "fragment:segment")) {
- F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_SEG;
- } else if (!strcmp(name, "fragment:block")) {
- F2FS_OPTION(sbi).fs_mode = FS_MODE_FRAGMENT_BLK;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
+ } else
+ set_opt(sbi, READ_EXTENT_CACHE);
+ break;
+ case Opt_data_flush:
+ set_opt(sbi, DATA_FLUSH);
+ break;
+ case Opt_reserve_root:
+ if (test_opt(sbi, RESERVE_ROOT)) {
+ f2fs_info(sbi, "Preserve previous reserve_root=%u",
+ F2FS_OPTION(sbi).root_reserved_blocks);
+ } else {
+ F2FS_OPTION(sbi).root_reserved_blocks = result.int_32;
+ set_opt(sbi, RESERVE_ROOT);
+ }
+ break;
+ case Opt_resuid:
+ F2FS_OPTION(sbi).s_resuid = result.uid;
+ break;
+ case Opt_resgid:
+ F2FS_OPTION(sbi).s_resgid = result.gid;
+ break;
+ case Opt_mode:
+ F2FS_OPTION(sbi).fs_mode = result.uint_32;
+ break;
#ifdef CONFIG_F2FS_FAULT_INJECTION
- case Opt_fault_injection:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- if (f2fs_build_fault_attr(sbi, arg,
- F2FS_ALL_FAULT_TYPE))
- return -EINVAL;
- set_opt(sbi, FAULT_INJECTION);
- break;
+ case Opt_fault_injection:
+ if (f2fs_build_fault_attr(sbi, result.int_32,
+ F2FS_ALL_FAULT_TYPE))
+ return -EINVAL;
+ set_opt(sbi, FAULT_INJECTION);
+ break;
- case Opt_fault_type:
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- if (f2fs_build_fault_attr(sbi, 0, arg))
- return -EINVAL;
- set_opt(sbi, FAULT_INJECTION);
- break;
+ case Opt_fault_type:
+ if (f2fs_build_fault_attr(sbi, 0, result.int_32))
+ return -EINVAL;
+ set_opt(sbi, FAULT_INJECTION);
+ break;
#else
- case Opt_fault_injection:
- case Opt_fault_type:
- f2fs_info(sbi, "fault injection options not supported");
- break;
+ case Opt_fault_injection:
+ case Opt_fault_type:
+ f2fs_info(sbi, "%s options not supported", param->key);
+ break;
#endif
- case Opt_lazytime:
- set_opt(sbi, LAZYTIME);
- break;
- case Opt_nolazytime:
+ case Opt_lazytime:
+ if (result.negated)
clear_opt(sbi, LAZYTIME);
- break;
+ else
+ set_opt(sbi, LAZYTIME);
+ break;
#ifdef CONFIG_QUOTA
- case Opt_quota:
- case Opt_usrquota:
- set_opt(sbi, USRQUOTA);
- break;
- case Opt_grpquota:
- set_opt(sbi, GRPQUOTA);
- break;
- case Opt_prjquota:
- set_opt(sbi, PRJQUOTA);
- break;
- case Opt_usrjquota:
- ret = f2fs_set_qf_name(sbi, USRQUOTA, &args[0]);
- if (ret)
- return ret;
- break;
- case Opt_grpjquota:
- ret = f2fs_set_qf_name(sbi, GRPQUOTA, &args[0]);
- if (ret)
- return ret;
- break;
- case Opt_prjjquota:
- ret = f2fs_set_qf_name(sbi, PRJQUOTA, &args[0]);
- if (ret)
- return ret;
- break;
- case Opt_offusrjquota:
- ret = f2fs_clear_qf_name(sbi, USRQUOTA);
- if (ret)
- return ret;
- break;
- case Opt_offgrpjquota:
- ret = f2fs_clear_qf_name(sbi, GRPQUOTA);
- if (ret)
- return ret;
- break;
- case Opt_offprjjquota:
- ret = f2fs_clear_qf_name(sbi, PRJQUOTA);
- if (ret)
- return ret;
- break;
- case Opt_jqfmt_vfsold:
- F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_OLD;
- break;
- case Opt_jqfmt_vfsv0:
- F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V0;
- break;
- case Opt_jqfmt_vfsv1:
- F2FS_OPTION(sbi).s_jquota_fmt = QFMT_VFS_V1;
- break;
- case Opt_noquota:
+ case Opt_quota:
+ if (result.negated) {
clear_opt(sbi, QUOTA);
clear_opt(sbi, USRQUOTA);
clear_opt(sbi, GRPQUOTA);
clear_opt(sbi, PRJQUOTA);
- break;
+ } else
+ set_opt(sbi, USRQUOTA);
+ break;
+ case Opt_usrquota:
+ set_opt(sbi, USRQUOTA);
+ break;
+ case Opt_grpquota:
+ set_opt(sbi, GRPQUOTA);
+ break;
+ case Opt_prjquota:
+ set_opt(sbi, PRJQUOTA);
+ break;
+ case Opt_usrjquota:
+ if (!*param->string)
+ ret = f2fs_clear_qf_name(sbi, USRQUOTA);
+ else
+ ret = f2fs_set_qf_name(sbi, USRQUOTA, param);
+ if (ret)
+ return ret;
+ break;
+ case Opt_grpjquota:
+ if (!*param->string)
+ ret = f2fs_clear_qf_name(sbi, GRPQUOTA);
+ else
+ ret = f2fs_set_qf_name(sbi, GRPQUOTA, param);
+ if (ret)
+ return ret;
+ break;
+ case Opt_prjjquota:
+ if (!*param->string)
+ ret = f2fs_clear_qf_name(sbi, PRJQUOTA);
+ else
+ ret = f2fs_set_qf_name(sbi, PRJQUOTA, param);
+ if (ret)
+ return ret;
+ break;
+ case Opt_jqfmt:
+ F2FS_OPTION(sbi).s_jquota_fmt = result.uint_32;
+ break;
#else
- case Opt_quota:
- case Opt_usrquota:
- case Opt_grpquota:
- case Opt_prjquota:
- case Opt_usrjquota:
- case Opt_grpjquota:
- case Opt_prjjquota:
- case Opt_offusrjquota:
- case Opt_offgrpjquota:
- case Opt_offprjjquota:
- case Opt_jqfmt_vfsold:
- case Opt_jqfmt_vfsv0:
- case Opt_jqfmt_vfsv1:
- case Opt_noquota:
- f2fs_info(sbi, "quota operations not supported");
- break;
+ case Opt_quota:
+ case Opt_usrquota:
+ case Opt_grpquota:
+ case Opt_prjquota:
+ case Opt_usrjquota:
+ case Opt_grpjquota:
+ case Opt_prjjquota:
+ f2fs_info(sbi, "quota operations not supported");
+ break;
#endif
- case Opt_alloc:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
-
- if (!strcmp(name, "default")) {
- F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_DEFAULT;
- } else if (!strcmp(name, "reuse")) {
- F2FS_OPTION(sbi).alloc_mode = ALLOC_MODE_REUSE;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_fsync:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "posix")) {
- F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_POSIX;
- } else if (!strcmp(name, "strict")) {
- F2FS_OPTION(sbi).fsync_mode = FSYNC_MODE_STRICT;
- } else if (!strcmp(name, "nobarrier")) {
- F2FS_OPTION(sbi).fsync_mode =
- FSYNC_MODE_NOBARRIER;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_test_dummy_encryption:
- ret = f2fs_set_test_dummy_encryption(sbi, p, &args[0],
- is_remount);
- if (ret)
- return ret;
- break;
- case Opt_inlinecrypt:
+ case Opt_alloc:
+ F2FS_OPTION(sbi).alloc_mode = result.uint_32;
+ break;
+ case Opt_fsync:
+ F2FS_OPTION(sbi).fsync_mode = result.uint_32;
+ break;
+ case Opt_test_dummy_encryption:
+ ret = f2fs_set_test_dummy_encryption(sbi, param, is_remount);
+ if (ret)
+ return ret;
+ break;
+ case Opt_inlinecrypt:
#ifdef CONFIG_FS_ENCRYPTION_INLINE_CRYPT
- set_opt(sbi, INLINECRYPT);
+ set_opt(sbi, INLINECRYPT);
#else
- f2fs_info(sbi, "inline encryption not supported");
+ f2fs_info(sbi, "inline encryption not supported");
#endif
- break;
+ break;
+ case Opt_checkpoint:
+ /* revert to match_table for checkpoint= options */
+ token = match_token(param->string, f2fs_checkpoint_tokens, args);
+ switch (token) {
case Opt_checkpoint_disable_cap_perc:
if (args->from && match_int(args, &arg))
return -EINVAL;
@@ -1182,270 +978,225 @@ static int parse_options(struct f2fs_sb_info *sbi, char *options, bool is_remoun
case Opt_checkpoint_enable:
clear_opt(sbi, DISABLE_CHECKPOINT);
break;
- case Opt_checkpoint_merge:
- set_opt(sbi, MERGE_CHECKPOINT);
- break;
- case Opt_nocheckpoint_merge:
+ default:
+ return -EINVAL;
+ }
+ break;
+ case Opt_checkpoint_merge:
+ if (result.negated)
clear_opt(sbi, MERGE_CHECKPOINT);
- break;
+ else
+ set_opt(sbi, MERGE_CHECKPOINT);
+ break;
#ifdef CONFIG_F2FS_FS_COMPRESSION
- case Opt_compress_algorithm:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "lzo")) {
+ case Opt_compress_algorithm:
+ if (!f2fs_sb_has_compression(sbi)) {
+ f2fs_info(sbi, "Image doesn't support compression");
+ break;
+ }
+ name = param->string;
+ if (!strcmp(name, "lzo")) {
#ifdef CONFIG_F2FS_FS_LZO
- F2FS_OPTION(sbi).compress_level = 0;
- F2FS_OPTION(sbi).compress_algorithm =
- COMPRESS_LZO;
+ F2FS_OPTION(sbi).compress_level = 0;
+ F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZO;
#else
- f2fs_info(sbi, "kernel doesn't support lzo compression");
+ f2fs_info(sbi, "kernel doesn't support lzo compression");
#endif
- } else if (!strncmp(name, "lz4", 3)) {
+ } else if (!strncmp(name, "lz4", 3)) {
#ifdef CONFIG_F2FS_FS_LZ4
- ret = f2fs_set_lz4hc_level(sbi, name);
- if (ret) {
- kfree(name);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).compress_algorithm =
- COMPRESS_LZ4;
+ ret = f2fs_set_lz4hc_level(sbi, name);
+ if (ret)
+ return -EINVAL;
+ F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZ4;
#else
- f2fs_info(sbi, "kernel doesn't support lz4 compression");
+ f2fs_info(sbi, "kernel doesn't support lz4 compression");
#endif
- } else if (!strncmp(name, "zstd", 4)) {
+ } else if (!strncmp(name, "zstd", 4)) {
#ifdef CONFIG_F2FS_FS_ZSTD
- ret = f2fs_set_zstd_level(sbi, name);
- if (ret) {
- kfree(name);
- return -EINVAL;
- }
- F2FS_OPTION(sbi).compress_algorithm =
- COMPRESS_ZSTD;
+ ret = f2fs_set_zstd_level(sbi, name);
+ if (ret)
+ return -EINVAL;
+ F2FS_OPTION(sbi).compress_algorithm = COMPRESS_ZSTD;
#else
- f2fs_info(sbi, "kernel doesn't support zstd compression");
+ f2fs_info(sbi, "kernel doesn't support zstd compression");
#endif
- } else if (!strcmp(name, "lzo-rle")) {
+ } else if (!strcmp(name, "lzo-rle")) {
#ifdef CONFIG_F2FS_FS_LZORLE
- F2FS_OPTION(sbi).compress_level = 0;
- F2FS_OPTION(sbi).compress_algorithm =
- COMPRESS_LZORLE;
+ F2FS_OPTION(sbi).compress_level = 0;
+ F2FS_OPTION(sbi).compress_algorithm = COMPRESS_LZORLE;
#else
- f2fs_info(sbi, "kernel doesn't support lzorle compression");
+ f2fs_info(sbi, "kernel doesn't support lzorle compression");
#endif
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
+ } else
+ return -EINVAL;
+ break;
+ case Opt_compress_log_size:
+ if (!f2fs_sb_has_compression(sbi)) {
+ f2fs_info(sbi, "Image doesn't support compression");
break;
- case Opt_compress_log_size:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- if (args->from && match_int(args, &arg))
- return -EINVAL;
- if (arg < MIN_COMPRESS_LOG_SIZE ||
- arg > MAX_COMPRESS_LOG_SIZE) {
- f2fs_err(sbi,
- "Compress cluster log size is out of range");
- return -EINVAL;
- }
- F2FS_OPTION(sbi).compress_log_size = arg;
+ }
+ if (result.uint_32 < MIN_COMPRESS_LOG_SIZE ||
+ result.uint_32 > MAX_COMPRESS_LOG_SIZE) {
+ f2fs_err(sbi,
+ "Compress cluster log size is out of range");
+ return -EINVAL;
+ }
+ F2FS_OPTION(sbi).compress_log_size = result.uint_32;
+ break;
+ case Opt_compress_extension:
+ if (!f2fs_sb_has_compression(sbi)) {
+ f2fs_info(sbi, "Image doesn't support compression");
break;
- case Opt_compress_extension:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
-
- ext = F2FS_OPTION(sbi).extensions;
- ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
-
- if (strlen(name) >= F2FS_EXTENSION_LEN ||
- ext_cnt >= COMPRESS_EXT_NUM) {
- f2fs_err(sbi,
- "invalid extension length/number");
- kfree(name);
- return -EINVAL;
- }
+ }
+ name = param->string;
+ ext = F2FS_OPTION(sbi).extensions;
+ ext_cnt = F2FS_OPTION(sbi).compress_ext_cnt;
- if (is_compress_extension_exist(sbi, name, true)) {
- kfree(name);
- break;
- }
+ if (strlen(name) >= F2FS_EXTENSION_LEN ||
+ ext_cnt >= COMPRESS_EXT_NUM) {
+ f2fs_err(sbi, "invalid extension length/number");
+ return -EINVAL;
+ }
- ret = strscpy(ext[ext_cnt], name);
- if (ret < 0) {
- kfree(name);
- return ret;
- }
- F2FS_OPTION(sbi).compress_ext_cnt++;
- kfree(name);
+ if (is_compress_extension_exist(sbi, name, true))
break;
- case Opt_nocompress_extension:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- noext = F2FS_OPTION(sbi).noextensions;
- noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
-
- if (strlen(name) >= F2FS_EXTENSION_LEN ||
- noext_cnt >= COMPRESS_EXT_NUM) {
- f2fs_err(sbi,
- "invalid extension length/number");
- kfree(name);
- return -EINVAL;
- }
+ ret = strscpy(ext[ext_cnt], name, F2FS_EXTENSION_LEN);
+ if (ret < 0)
+ return ret;
+ F2FS_OPTION(sbi).compress_ext_cnt++;
+ break;
+ case Opt_nocompress_extension:
+ if (!f2fs_sb_has_compression(sbi)) {
+ f2fs_info(sbi, "Image doesn't support compression");
+ break;
+ }
+ name = param->string;
+ noext = F2FS_OPTION(sbi).noextensions;
+ noext_cnt = F2FS_OPTION(sbi).nocompress_ext_cnt;
- if (is_compress_extension_exist(sbi, name, false)) {
- kfree(name);
- break;
- }
+ if (strlen(name) >= F2FS_EXTENSION_LEN ||
+ noext_cnt >= COMPRESS_EXT_NUM) {
+ f2fs_err(sbi, "invalid extension length/number");
+ return -EINVAL;
+ }
- ret = strscpy(noext[noext_cnt], name);
- if (ret < 0) {
- kfree(name);
- return ret;
- }
- F2FS_OPTION(sbi).nocompress_ext_cnt++;
- kfree(name);
+ if (is_compress_extension_exist(sbi, name, false))
break;
- case Opt_compress_chksum:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- F2FS_OPTION(sbi).compress_chksum = true;
+
+ ret = strscpy(noext[noext_cnt], name, F2FS_EXTENSION_LEN);
+ if (ret < 0)
+ return ret;
+ F2FS_OPTION(sbi).nocompress_ext_cnt++;
+ break;
+ case Opt_compress_chksum:
+ if (!f2fs_sb_has_compression(sbi)) {
+ f2fs_info(sbi, "Image doesn't support compression");
break;
- case Opt_compress_mode:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "fs")) {
- F2FS_OPTION(sbi).compress_mode = COMPR_MODE_FS;
- } else if (!strcmp(name, "user")) {
- F2FS_OPTION(sbi).compress_mode = COMPR_MODE_USER;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
+ }
+ F2FS_OPTION(sbi).compress_chksum = true;
+ break;
+ case Opt_compress_mode:
+ if (!f2fs_sb_has_compression(sbi)) {
+ f2fs_info(sbi, "Image doesn't support compression");
break;
- case Opt_compress_cache:
- if (!f2fs_sb_has_compression(sbi)) {
- f2fs_info(sbi, "Image doesn't support compression");
- break;
- }
- set_opt(sbi, COMPRESS_CACHE);
+ }
+ F2FS_OPTION(sbi).compress_mode = result.uint_32;
+ break;
+ case Opt_compress_cache:
+ if (!f2fs_sb_has_compression(sbi)) {
+ f2fs_info(sbi, "Image doesn't support compression");
break;
+ }
+ set_opt(sbi, COMPRESS_CACHE);
+ break;
#else
- case Opt_compress_algorithm:
- case Opt_compress_log_size:
- case Opt_compress_extension:
- case Opt_nocompress_extension:
- case Opt_compress_chksum:
- case Opt_compress_mode:
- case Opt_compress_cache:
- f2fs_info(sbi, "compression options not supported");
- break;
+ case Opt_compress_algorithm:
+ case Opt_compress_log_size:
+ case Opt_compress_extension:
+ case Opt_nocompress_extension:
+ case Opt_compress_chksum:
+ case Opt_compress_mode:
+ case Opt_compress_cache:
+ f2fs_info(sbi, "compression options not supported");
+ break;
#endif
- case Opt_atgc:
- set_opt(sbi, ATGC);
- break;
- case Opt_gc_merge:
- set_opt(sbi, GC_MERGE);
- break;
- case Opt_nogc_merge:
+ case Opt_atgc:
+ set_opt(sbi, ATGC);
+ break;
+ case Opt_gc_merge:
+ if (result.negated)
clear_opt(sbi, GC_MERGE);
- break;
- case Opt_discard_unit:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "block")) {
- F2FS_OPTION(sbi).discard_unit =
- DISCARD_UNIT_BLOCK;
- } else if (!strcmp(name, "segment")) {
- F2FS_OPTION(sbi).discard_unit =
- DISCARD_UNIT_SEGMENT;
- } else if (!strcmp(name, "section")) {
- F2FS_OPTION(sbi).discard_unit =
- DISCARD_UNIT_SECTION;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_memory_mode:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "normal")) {
- F2FS_OPTION(sbi).memory_mode =
- MEMORY_MODE_NORMAL;
- } else if (!strcmp(name, "low")) {
- F2FS_OPTION(sbi).memory_mode =
- MEMORY_MODE_LOW;
- } else {
- kfree(name);
- return -EINVAL;
- }
- kfree(name);
- break;
- case Opt_age_extent_cache:
- set_opt(sbi, AGE_EXTENT_CACHE);
- break;
- case Opt_errors:
- name = match_strdup(&args[0]);
- if (!name)
- return -ENOMEM;
- if (!strcmp(name, "remount-ro")) {
- F2FS_OPTION(sbi).errors =
- MOUNT_ERRORS_READONLY;
- } else if (!strcmp(name, "continue")) {
- F2FS_OPTION(sbi).errors =
- MOUNT_ERRORS_CONTINUE;
- } else if (!strcmp(name, "panic")) {
- F2FS_OPTION(sbi).errors =
- MOUNT_ERRORS_PANIC;
- } else {
- kfree(name);
- return -EINVAL;
+ else
+ set_opt(sbi, GC_MERGE);
+ break;
+ case Opt_discard_unit:
+ F2FS_OPTION(sbi).discard_unit = result.uint_32;
+ break;
+ case Opt_memory_mode:
+ F2FS_OPTION(sbi).memory_mode = result.uint_32;
+ break;
+ case Opt_age_extent_cache:
+ set_opt(sbi, AGE_EXTENT_CACHE);
+ break;
+ case Opt_errors:
+ F2FS_OPTION(sbi).errors = result.uint_32;
+ break;
+ case Opt_nat_bits:
+ set_opt(sbi, NAT_BITS);
+ break;
+ }
+ return 0;
+}
+
+static int parse_options(struct f2fs_sb_info *sbi, char *options, bool is_remount)
+{
+ struct fs_parameter param;
+ struct fs_context fc;
+ char *key;
+ int ret;
+
+ if (!options)
+ return 0;
+
+ memset(&fc, 0, sizeof(fc));
+ fc.s_fs_info = sbi;
+ if (is_remount)
+ fc.purpose = FS_CONTEXT_FOR_RECONFIGURE;
+
+ while ((key = strsep(&options, ",")) != NULL) {
+ if (*key) {
+ size_t v_len = 0;
+ char *value = strchr(key, '=');
+
+ param.type = fs_value_is_flag;
+ param.string = NULL;
+
+ if (value) {
+ if (value == key)
+ continue;
+
+ *value++ = 0;
+ v_len = strlen(value);
+ param.string = kmemdup_nul(value, v_len, GFP_KERNEL);
+ if (!param.string)
+ return -ENOMEM;
+ param.type = fs_value_is_string;
}
- kfree(name);
- break;
- case Opt_nat_bits:
- set_opt(sbi, NAT_BITS);
- break;
- default:
- f2fs_err(sbi, "Unrecognized mount option \"%s\" or missing value",
- p);
- return -EINVAL;
+
+ param.key = key;
+ param.size = v_len;
+
+ ret = handle_mount_opt(&fc, ¶m);
+ kfree(param.string);
+ if (ret < 0)
+ return ret;
}
}
return 0;
}
-static int f2fs_default_check(struct f2fs_sb_info *sbi)
+static int f2fs_validate_options(struct f2fs_sb_info *sbi)
{
#ifdef CONFIG_QUOTA
if (f2fs_check_quota_options(sbi))
@@ -2516,7 +2267,7 @@ static int f2fs_remount(struct super_block *sb, int *flags, char *data)
}
#endif
- err = f2fs_default_check(sbi);
+ err = f2fs_validate_options(sbi);
if (err)
goto restore_opts;
@@ -4675,7 +4426,7 @@ static int f2fs_fill_super(struct super_block *sb, void *data, int silent)
if (err)
goto free_options;
- err = f2fs_default_check(sbi);
+ err = f2fs_validate_options(sbi);
if (err)
goto free_options;
--
2.47.0
