2 * Copyright (c) 2013 Grzegorz Kostka (kostka.grzegorz@gmail.com)
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
9 * - Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * - Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * - The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 /** @addtogroup lwext4
34 * @brief Configuration file.
37 #ifndef EXT4_CONFIG_H_
38 #define EXT4_CONFIG_H_
44 #if !CONFIG_USE_DEFAULT_CFG
45 #include "generated/ext4_config.h"
48 /*****************************************************************************/
54 #ifndef CONFIG_EXT_FEATURE_SET_LVL
55 #define CONFIG_EXT_FEATURE_SET_LVL F_SET_EXT4
58 /*****************************************************************************/
60 #if CONFIG_EXT_FEATURE_SET_LVL == F_SET_EXT2
61 /*Superblock features flag EXT2*/
62 #define CONFIG_SUPPORTED_FCOM EXT2_SUPPORTED_FCOM
63 #define CONFIG_SUPPORTED_FINCOM (EXT2_SUPPORTED_FINCOM | EXT_FINCOM_IGNORED)
64 #define CONFIG_SUPPORTED_FRO_COM EXT2_SUPPORTED_FRO_COM
66 #elif CONFIG_EXT_FEATURE_SET_LVL == F_SET_EXT3
67 /*Superblock features flag EXT3*/
68 #define CONFIG_SUPPORTED_FCOM EXT3_SUPPORTED_FCOM
69 #define CONFIG_SUPPORTED_FINCOM (EXT3_SUPPORTED_FINCOM | EXT_FINCOM_IGNORED)
70 #define CONFIG_SUPPORTED_FRO_COM EXT3_SUPPORTED_FRO_COM
71 #elif CONFIG_EXT_FEATURE_SET_LVL == F_SET_EXT4
72 /*Superblock features flag EXT4*/
73 #define CONFIG_SUPPORTED_FCOM EXT4_SUPPORTED_FCOM
74 #define CONFIG_SUPPORTED_FINCOM (EXT4_SUPPORTED_FINCOM | EXT_FINCOM_IGNORED)
75 #define CONFIG_SUPPORTED_FRO_COM EXT4_SUPPORTED_FRO_COM
77 #define "Unsupported CONFIG_EXT_FEATURE_SET_LVL"
80 #define CONFIG_DIR_INDEX_ENABLE (CONFIG_SUPPORTED_FCOM & EXT4_FCOM_DIR_INDEX)
81 #define CONFIG_EXTENT_ENABLE (CONFIG_SUPPORTED_FINCOM & EXT4_FINCOM_EXTENTS)
82 #define CONFIG_META_CSUM_ENABLE (CONFIG_SUPPORTED_FRO_COM & EXT4_FRO_COM_METADATA_CSUM)
84 /*****************************************************************************/
86 /**@brief Enable/disable journaling*/
87 #ifndef CONFIG_JOURNALING_ENABLE
88 #define CONFIG_JOURNALING_ENABLE 1
91 /**@brief Enable/disable xattr*/
92 #ifndef CONFIG_XATTR_ENABLE
93 #define CONFIG_XATTR_ENABLE 1
96 /**@brief Enable/disable extents*/
97 #ifndef CONFIG_EXTENTS_ENABLE
98 #define CONFIG_EXTENTS_ENABLE 1
101 /**@brief Include error codes from ext4_errno or standard library.*/
102 #ifndef CONFIG_HAVE_OWN_ERRNO
103 #define CONFIG_HAVE_OWN_ERRNO 0
106 /**@brief Debug printf enable (stdout)*/
107 #ifndef CONFIG_DEBUG_PRINTF
108 #define CONFIG_DEBUG_PRINTF 1
111 /**@brief Assert printf enable (stdout)*/
112 #ifndef CONFIG_DEBUG_ASSERT
113 #define CONFIG_DEBUG_ASSERT 1
116 /**@brief Include assert codes from ext4_debug or standard library.*/
117 #ifndef CONFIG_HAVE_OWN_ASSERT
118 #define CONFIG_HAVE_OWN_ASSERT 1
121 /**@brief Statistics of block device*/
122 #ifndef CONFIG_BLOCK_DEV_ENABLE_STATS
123 #define CONFIG_BLOCK_DEV_ENABLE_STATS 1
126 /**@brief Cache size of block device.*/
127 #ifndef CONFIG_BLOCK_DEV_CACHE_SIZE
128 #define CONFIG_BLOCK_DEV_CACHE_SIZE 8
132 /**@brief Maximum block device name*/
133 #ifndef CONFIG_EXT4_MAX_BLOCKDEV_NAME
134 #define CONFIG_EXT4_MAX_BLOCKDEV_NAME 32
138 /**@brief Maximum block device count*/
139 #ifndef CONFIG_EXT4_BLOCKDEVS_COUNT
140 #define CONFIG_EXT4_BLOCKDEVS_COUNT 2
143 /**@brief Maximum mountpoint name*/
144 #ifndef CONFIG_EXT4_MAX_MP_NAME
145 #define CONFIG_EXT4_MAX_MP_NAME 32
148 /**@brief Maximum mountpoint count*/
149 #ifndef CONFIG_EXT4_MOUNTPOINTS_COUNT
150 #define CONFIG_EXT4_MOUNTPOINTS_COUNT 2
153 /**@brief Include open flags from ext4_errno or standard library.*/
154 #ifndef CONFIG_HAVE_OWN_OFLAGS
155 #define CONFIG_HAVE_OWN_OFLAGS 1
158 /**@brief Maximum single truncate size. Transactions must be limited to reduce
159 * number of allocetions for single transaction*/
160 #ifndef CONFIG_MAX_TRUNCATE_SIZE
161 #define CONFIG_MAX_TRUNCATE_SIZE (16ul * 1024ul * 1024ul)
165 /**@brief Unaligned access switch on/off*/
166 #ifndef CONFIG_UNALIGNED_ACCESS
167 #define CONFIG_UNALIGNED_ACCESS 0
170 /**@brief Switches use of malloc/free functions family
171 * from standard library to user provided*/
172 #ifndef CONFIG_USE_USER_MALLOC
173 #define CONFIG_USE_USER_MALLOC 0
180 #endif /* EXT4_CONFIG_H_ */