Commit f2091cc1 authored by Hongbo Li's avatar Hongbo Li Committed by Jaegeuk Kim
Browse files

f2fs: Add fs parameter specifications for mount options 



Use an array of `fs_parameter_spec` called f2fs_param_specs to
hold the mount option specifications for the new mount api.

Add constant_table structures for several options to facilitate
parsing.

Signed-off-by: default avatarHongbo Li <lihongbo22@huawei.com>
[sandeen: forward port, minor fixes and updates, more fsparam_enum]
Signed-off-by: default avatarEric Sandeen <sandeen@redhat.com>
Reviewed-by: default avatarChao Yu <chao@kernel.org>
Signed-off-by: default avatarJaegeuk Kim <jaegeuk@kernel.org>
parent 56619985

fs/f2fs/super.c

+122 −0
Original line number Diff line number Diff line
@@ -27,6 +27,7 @@ 
#include <linux/part_stat.h>

#include <linux/zstd.h>

#include <linux/lz4.h>

#include <linux/fs_parser.h>



#include "f2fs.h"

#include "node.h"
@@ -196,9 +197,130 @@ enum { 
	Opt_age_extent_cache,

	Opt_errors,

	Opt_nat_bits,

	Opt_jqfmt,

	Opt_checkpoint,

	Opt_err,

};



static const struct constant_table f2fs_param_background_gc[] = {

	{"on",		BGGC_MODE_ON},

	{"off",		BGGC_MODE_OFF},

	{"sync",	BGGC_MODE_SYNC},

	{}

};



static const struct constant_table f2fs_param_mode[] = {

	{"adaptive",		FS_MODE_ADAPTIVE},

	{"lfs",			FS_MODE_LFS},

	{"fragment:segment",	FS_MODE_FRAGMENT_SEG},

	{"fragment:block",	FS_MODE_FRAGMENT_BLK},

	{}

};



static const struct constant_table f2fs_param_jqfmt[] = {

	{"vfsold",	QFMT_VFS_OLD},

	{"vfsv0",	QFMT_VFS_V0},

	{"vfsv1",	QFMT_VFS_V1},

	{}

};



static const struct constant_table f2fs_param_alloc_mode[] = {

	{"default",	ALLOC_MODE_DEFAULT},

	{"reuse",	ALLOC_MODE_REUSE},

	{}

};

static const struct constant_table f2fs_param_fsync_mode[] = {

	{"posix",	FSYNC_MODE_POSIX},

	{"strict",	FSYNC_MODE_STRICT},

	{"nobarrier",	FSYNC_MODE_NOBARRIER},

	{}

};



static const struct constant_table f2fs_param_compress_mode[] = {

	{"fs",		COMPR_MODE_FS},

	{"user",	COMPR_MODE_USER},

	{}

};



static const struct constant_table f2fs_param_discard_unit[] = {

	{"block",	DISCARD_UNIT_BLOCK},

	{"segment",	DISCARD_UNIT_SEGMENT},

	{"section",	DISCARD_UNIT_SECTION},

	{}

};



static const struct constant_table f2fs_param_memory_mode[] = {

	{"normal",	MEMORY_MODE_NORMAL},

	{"low",		MEMORY_MODE_LOW},

	{}

};



static const struct constant_table f2fs_param_errors[] = {

	{"remount-ro",	MOUNT_ERRORS_READONLY},

	{"continue",	MOUNT_ERRORS_CONTINUE},

	{"panic",	MOUNT_ERRORS_PANIC},

	{}

};



static const struct fs_parameter_spec f2fs_param_specs[] = {

	fsparam_enum("background_gc", Opt_gc_background, f2fs_param_background_gc),

	fsparam_flag("disable_roll_forward", Opt_disable_roll_forward),

	fsparam_flag("norecovery", Opt_norecovery),

	fsparam_flag_no("discard", Opt_discard),

	fsparam_flag("no_heap", Opt_noheap),

	fsparam_flag("heap", Opt_heap),

	fsparam_flag_no("user_xattr", Opt_user_xattr),

	fsparam_flag_no("acl", Opt_acl),

	fsparam_s32("active_logs", Opt_active_logs),

	fsparam_flag("disable_ext_identify", Opt_disable_ext_identify),

	fsparam_flag_no("inline_xattr", Opt_inline_xattr),

	fsparam_s32("inline_xattr_size", Opt_inline_xattr_size),

	fsparam_flag_no("inline_data", Opt_inline_data),

	fsparam_flag_no("inline_dentry", Opt_inline_dentry),

	fsparam_flag_no("flush_merge", Opt_flush_merge),

	fsparam_flag_no("barrier", Opt_barrier),

	fsparam_flag("fastboot", Opt_fastboot),

	fsparam_flag_no("extent_cache", Opt_extent_cache),

	fsparam_flag("data_flush", Opt_data_flush),

	fsparam_u32("reserve_root", Opt_reserve_root),

	fsparam_gid("resgid", Opt_resgid),

	fsparam_uid("resuid", Opt_resuid),

	fsparam_enum("mode", Opt_mode, f2fs_param_mode),

	fsparam_s32("fault_injection", Opt_fault_injection),

	fsparam_u32("fault_type", Opt_fault_type),

	fsparam_flag_no("lazytime", Opt_lazytime),

	fsparam_flag_no("quota", Opt_quota),

	fsparam_flag("usrquota", Opt_usrquota),

	fsparam_flag("grpquota", Opt_grpquota),

	fsparam_flag("prjquota", Opt_prjquota),

	fsparam_string_empty("usrjquota", Opt_usrjquota),

	fsparam_string_empty("grpjquota", Opt_grpjquota),

	fsparam_string_empty("prjjquota", Opt_prjjquota),

	fsparam_flag("nat_bits", Opt_nat_bits),

	fsparam_enum("jqfmt", Opt_jqfmt, f2fs_param_jqfmt),

	fsparam_enum("alloc_mode", Opt_alloc, f2fs_param_alloc_mode),

	fsparam_enum("fsync_mode", Opt_fsync, f2fs_param_fsync_mode),

	fsparam_string("test_dummy_encryption", Opt_test_dummy_encryption),

	fsparam_flag("test_dummy_encryption", Opt_test_dummy_encryption),

	fsparam_flag("inlinecrypt", Opt_inlinecrypt),

	fsparam_string("checkpoint", Opt_checkpoint),

	fsparam_flag_no("checkpoint_merge", Opt_checkpoint_merge),

	fsparam_string("compress_algorithm", Opt_compress_algorithm),

	fsparam_u32("compress_log_size", Opt_compress_log_size),

	fsparam_string("compress_extension", Opt_compress_extension),

	fsparam_string("nocompress_extension", Opt_nocompress_extension),

	fsparam_flag("compress_chksum", Opt_compress_chksum),

	fsparam_enum("compress_mode", Opt_compress_mode, f2fs_param_compress_mode),

	fsparam_flag("compress_cache", Opt_compress_cache),

	fsparam_flag("atgc", Opt_atgc),

	fsparam_flag_no("gc_merge", Opt_gc_merge),

	fsparam_enum("discard_unit", Opt_discard_unit, f2fs_param_discard_unit),

	fsparam_enum("memory", Opt_memory_mode, f2fs_param_memory_mode),

	fsparam_flag("age_extent_cache", Opt_age_extent_cache),

	fsparam_enum("errors", Opt_errors, f2fs_param_errors),

	{}

};



static match_table_t f2fs_tokens = {

	{Opt_gc_background, "background_gc=%s"},

	{Opt_disable_roll_forward, "disable_roll_forward"},