1036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim/** 240b9f96587c191269a41b20bd2bd5000fc9db259Jaegeuk Kim * f2fs_fs.h 3036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim * 4036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim * Copyright (c) 2012 Samsung Electronics Co., Ltd. 5036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim * http://www.samsung.com/ 6036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim * 70fbdf6cbd4dfc633454eba2f841c123789e297adJaegeuk Kim * Dual licensed under the GPL or LGPL version 2 licenses. 87b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * 97b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * The byteswap codes are copied from: 107b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * samba_3_master/lib/ccan/endian/endian.h under LGPL 2.1 11036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim */ 1240b9f96587c191269a41b20bd2bd5000fc9db259Jaegeuk Kim#ifndef __F2FS_FS_H__ 1340b9f96587c191269a41b20bd2bd5000fc9db259Jaegeuk Kim#define __F2FS_FS_H__ 14036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 15e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim#include <inttypes.h> 16036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#include <linux/types.h> 17e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim#include <sys/types.h> 18036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 19dd1ba078fae270c4174a221a873026fea85aae32Sven-Göran Bergh#ifdef HAVE_CONFIG_H 20dd1ba078fae270c4174a221a873026fea85aae32Sven-Göran Bergh#include <config.h> 21dd1ba078fae270c4174a221a873026fea85aae32Sven-Göran Bergh#endif 22dd1ba078fae270c4174a221a873026fea85aae32Sven-Göran Bergh 237f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leetypedef u_int64_t u64; 247f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leetypedef u_int32_t u32; 257f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leetypedef u_int16_t u16; 267f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leetypedef u_int8_t u8; 27858c4039c85f7c00c57925902985701b1e083555Jaegeuk Kimtypedef u32 block_t; 287f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leetypedef u32 nid_t; 297f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leetypedef u8 bool; 307f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leetypedef unsigned long pgoff_t; 317f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee 327b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim#if HAVE_BYTESWAP_H 337b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim#include <byteswap.h> 347b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim#else 357b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim/** 367b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * bswap_16 - reverse bytes in a uint16_t value. 377b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * @val: value whose bytes to swap. 387b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * 397b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * Example: 407b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * // Output contains "1024 is 4 as two bytes reversed" 417b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * printf("1024 is %u as two bytes reversed\n", bswap_16(1024)); 427b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim */ 437b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kimstatic inline uint16_t bswap_16(uint16_t val) 447b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim{ 457b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim return ((val & (uint16_t)0x00ffU) << 8) 467b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint16_t)0xff00U) >> 8); 477b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim} 487b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim 497b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim/** 507b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * bswap_32 - reverse bytes in a uint32_t value. 517b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * @val: value whose bytes to swap. 527b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * 537b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * Example: 547b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * // Output contains "1024 is 262144 as four bytes reversed" 557b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * printf("1024 is %u as four bytes reversed\n", bswap_32(1024)); 567b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim */ 577b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kimstatic inline uint32_t bswap_32(uint32_t val) 587b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim{ 597b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim return ((val & (uint32_t)0x000000ffUL) << 24) 607b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint32_t)0x0000ff00UL) << 8) 617b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint32_t)0x00ff0000UL) >> 8) 627b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint32_t)0xff000000UL) >> 24); 637b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim} 647b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim#endif /* !HAVE_BYTESWAP_H */ 657b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim 667b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim#if !HAVE_BSWAP_64 677b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim/** 687b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * bswap_64 - reverse bytes in a uint64_t value. 697b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * @val: value whose bytes to swap. 707b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * 717b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * Example: 727b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * // Output contains "1024 is 1125899906842624 as eight bytes reversed" 737b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * printf("1024 is %llu as eight bytes reversed\n", 747b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim * (unsigned long long)bswap_64(1024)); 757b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim */ 767b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kimstatic inline uint64_t bswap_64(uint64_t val) 777b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim{ 787b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim return ((val & (uint64_t)0x00000000000000ffULL) << 56) 797b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint64_t)0x000000000000ff00ULL) << 40) 807b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint64_t)0x0000000000ff0000ULL) << 24) 817b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint64_t)0x00000000ff000000ULL) << 8) 827b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint64_t)0x000000ff00000000ULL) >> 8) 837b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint64_t)0x0000ff0000000000ULL) >> 24) 847b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint64_t)0x00ff000000000000ULL) >> 40) 857b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim | ((val & (uint64_t)0xff00000000000000ULL) >> 56); 867b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim} 877b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim#endif 887b74ed3d7cc84c3bb7e85b825cf17540baa3bbfaJaegeuk Kim 89036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#if __BYTE_ORDER == __LITTLE_ENDIAN 90036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define le16_to_cpu(x) ((__u16)(x)) 91036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define le32_to_cpu(x) ((__u32)(x)) 92036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define le64_to_cpu(x) ((__u64)(x)) 93036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define cpu_to_le16(x) ((__u16)(x)) 94036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define cpu_to_le32(x) ((__u32)(x)) 95036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define cpu_to_le64(x) ((__u64)(x)) 96036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#elif __BYTE_ORDER == __BIG_ENDIAN 97036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define le16_to_cpu(x) bswap_16(x) 98036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define le32_to_cpu(x) bswap_32(x) 99036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define le64_to_cpu(x) bswap_64(x) 100036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define cpu_to_le16(x) bswap_16(x) 101036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define cpu_to_le32(x) bswap_32(x) 102036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define cpu_to_le64(x) bswap_64(x) 103036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#endif 104036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 1057f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee#define typecheck(type,x) \ 1067f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee ({ type __dummy; \ 1077f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee typeof(x) __dummy2; \ 1087f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee (void)(&__dummy == &__dummy2); \ 1097f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee 1; \ 1107f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee }) 1117f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee 1127f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee#define NULL_SEGNO ((unsigned int)~0) 1137f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee 114e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim/* 115e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim * Debugging interfaces 116e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim */ 117269eac2e0346e92fa1428bbfbc3fa50233f8c4efJaegeuk Kim#define FIX_MSG(fmt, ...) \ 118269eac2e0346e92fa1428bbfbc3fa50233f8c4efJaegeuk Kim do { \ 119269eac2e0346e92fa1428bbfbc3fa50233f8c4efJaegeuk Kim printf("[FIX] (%s:%4d) ", __func__, __LINE__); \ 120269eac2e0346e92fa1428bbfbc3fa50233f8c4efJaegeuk Kim printf(" --> "fmt"\n", ##__VA_ARGS__); \ 121269eac2e0346e92fa1428bbfbc3fa50233f8c4efJaegeuk Kim } while (0) 122269eac2e0346e92fa1428bbfbc3fa50233f8c4efJaegeuk Kim 123b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim#define ASSERT_MSG(fmt, ...) \ 124e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim do { \ 125b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim printf("[ASSERT] (%s:%4d) ", __func__, __LINE__); \ 126b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim printf(" --> "fmt"\n", ##__VA_ARGS__); \ 127b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim config.bug_on = 1; \ 128b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 129e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 130e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim#define ASSERT(exp) \ 131e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim do { \ 132e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim if (!(exp)) { \ 133b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim printf("[ASSERT] (%s:%4d) " #exp"\n", \ 134b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim __func__, __LINE__); \ 135e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim exit(-1); \ 136e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim } \ 137b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 138e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 1397f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee#define ERR_MSG(fmt, ...) \ 1407f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee do { \ 141b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim printf("[%s:%d] " fmt, __func__, __LINE__, ##__VA_ARGS__); \ 142b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 1437f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee 144e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim#define MSG(n, fmt, ...) \ 145e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim do { \ 146e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim if (config.dbg_lv >= n) { \ 147e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim printf(fmt, ##__VA_ARGS__); \ 148e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim } \ 149b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 150e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 151e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim#define DBG(n, fmt, ...) \ 152e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim do { \ 153e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim if (config.dbg_lv >= n) { \ 154e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim printf("[%s:%4d] " fmt, \ 155e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim __func__, __LINE__, ##__VA_ARGS__); \ 156e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim } \ 157b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 158e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 159e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim/* Display on console */ 160e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim#define DISP(fmt, ptr, member) \ 161e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim do { \ 162e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim printf("%-30s" fmt, #member, ((ptr)->member)); \ 163b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 164e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 165e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim#define DISP_u32(ptr, member) \ 166e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim do { \ 167e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim assert(sizeof((ptr)->member) <= 4); \ 168e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim printf("%-30s" "\t\t[0x%8x : %u]\n", \ 169b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim #member, ((ptr)->member), ((ptr)->member)); \ 170b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 171e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 172e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim#define DISP_u64(ptr, member) \ 173e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim do { \ 174e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim assert(sizeof((ptr)->member) == 8); \ 175e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim printf("%-30s" "\t\t[0x%8llx : %llu]\n", \ 176b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim #member, ((ptr)->member), ((ptr)->member)); \ 177b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 178e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 179e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim#define DISP_utf(ptr, member) \ 180e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim do { \ 181b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim printf("%-30s" "\t\t[%s]\n", #member, ((ptr)->member)); \ 182b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 183e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 184e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim/* Display to buffer */ 185b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim#define BUF_DISP_u32(buf, data, len, ptr, member) \ 186b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim do { \ 187b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim assert(sizeof((ptr)->member) <= 4); \ 188b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim snprintf(buf, len, #member); \ 189b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim snprintf(data, len, "0x%x : %u", ((ptr)->member), \ 190b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim ((ptr)->member)); \ 191b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 192b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim 193b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim#define BUF_DISP_u64(buf, data, len, ptr, member) \ 194b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim do { \ 195b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim assert(sizeof((ptr)->member) == 8); \ 196b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim snprintf(buf, len, #member); \ 197b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim snprintf(data, len, "0x%llx : %llu", ((ptr)->member), \ 198b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim ((ptr)->member)); \ 199b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim } while (0) 200b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim 201b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim#define BUF_DISP_utf(buf, data, len, ptr, member) \ 202b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim snprintf(buf, len, #member) 203e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 204036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim/* these are defined in kernel */ 205036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define PAGE_SIZE 4096 206036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define PAGE_CACHE_SIZE 4096 207036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define BITS_PER_BYTE 8 2082784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_SUPER_MAGIC 0xF2F52010 /* F2FS Magic Number */ 209cc9d9caeb6853d38297d97d3dd4731c452418f02Jaegeuk Kim#define CHECKSUM_OFFSET 4092 210036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 211036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim/* for mkfs */ 212036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define F2FS_MIN_VOLUME_SIZE 104857600 213036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define F2FS_NUMBER_OF_CHECKPOINT_PACK 2 214036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define DEFAULT_SECTOR_SIZE 512 215036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define DEFAULT_SECTORS_PER_BLOCK 8 216036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define DEFAULT_BLOCKS_PER_SEGMENT 512 217036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define DEFAULT_SEGMENTS_PER_SECTION 1 218036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 2197f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeenum f2fs_config_func { 2207f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee FSCK, 2217f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee DUMP, 2227f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee}; 2237f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee 224e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kimstruct f2fs_configuration { 2252784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim u_int32_t sector_size; 2262784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim u_int32_t reserved_segments; 2272784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim u_int32_t overprovision; 2282784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim u_int32_t cur_seg[6]; 2292784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim u_int32_t segs_per_sec; 2302784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim u_int32_t secs_per_zone; 2312784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim u_int32_t start_sector; 2322784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim u_int64_t total_sectors; 2332784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim u_int32_t sectors_per_blk; 2342784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim u_int32_t blks_per_seg; 2359799d6364dc93e1fd259d812d4a50ed984a6456bMike Fleetwood char *vol_label; 2362784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim int heap; 2372784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim int32_t fd; 238f70644c5047f9f912836724a994ccab18b5b5dd1Jaegeuk Kim int32_t dump_fd; 2392784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim char *device_name; 2402784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim char *extension_list; 241e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim int dbg_lv; 242fef98ebdf3a7728017cb3d0ae4ffedc5405e531dChangman Lee int trim; 2437f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee int func; 2447f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee void *private; 245f4ef4a14e978e7328037b43a8a6ec9d2a2d4bb5aJaegeuk Kim int fix_on; 246f4ef4a14e978e7328037b43a8a6ec9d2a2d4bb5aJaegeuk Kim int bug_on; 247de6c1c7ce25841547813c71ca3b6d067300f0530Jaegeuk Kim int auto_fix; 248036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 249036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 250cb54e79739672366d849e02a3068f857c6bb544cJP Abgrall#ifdef CONFIG_64BIT 251036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define BITS_PER_LONG 64 252036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#else 253036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define BITS_PER_LONG 32 254036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#endif 255036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 2562784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define BIT_MASK(nr) (1 << (nr % BITS_PER_LONG)) 2572784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define BIT_WORD(nr) (nr / BITS_PER_LONG) 258036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 259036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim/* 2602784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim * Copied from fs/f2fs/f2fs.h 261036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim */ 2622784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define NR_CURSEG_DATA_TYPE (3) 2632784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define NR_CURSEG_NODE_TYPE (3) 2642784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define NR_CURSEG_TYPE (NR_CURSEG_DATA_TYPE + NR_CURSEG_NODE_TYPE) 2652784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 2662784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kimenum { 2672784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim CURSEG_HOT_DATA = 0, /* directory entry blocks */ 2682784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim CURSEG_WARM_DATA, /* data blocks */ 2692784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim CURSEG_COLD_DATA, /* multimedia or GCed data blocks */ 2702784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim CURSEG_HOT_NODE, /* direct node blocks of directory files */ 2712784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim CURSEG_WARM_NODE, /* direct node blocks of normal files */ 2722784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim CURSEG_COLD_NODE, /* indirect node blocks */ 2732784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim NO_CHECK_TYPE 2742784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim}; 2752784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 2762784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim/* 2772784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim * Copied from fs/f2fs/segment.h 2782784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim */ 2792784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define GET_SUM_TYPE(footer) ((footer)->entry_type) 2802784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define SET_SUM_TYPE(footer, type) ((footer)->entry_type = type) 2812784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 2822784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim/* 2832784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim * Copied from include/linux/f2fs_sb.h 2842784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim */ 2852784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_SUPER_OFFSET 1024 /* byte-size offset */ 2862784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_LOG_SECTOR_SIZE 9 /* 9 bits for 512 byte */ 2872784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_LOG_SECTORS_PER_BLOCK 3 /* 4KB: F2FS_BLKSIZE */ 2882784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_BLKSIZE 4096 /* support only 4KB block */ 2892784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_MAX_EXTENSION 64 /* # of extension entries */ 2902794728f818c72541be052d1b54559d79d8a3aa7Changman Lee#define F2FS_BLK_ALIGN(x) (((x) + F2FS_BLKSIZE - 1) / F2FS_BLKSIZE) 2912784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 2922784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define NULL_ADDR 0x0U 2932784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define NEW_ADDR -1U 2942784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 2952784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_ROOT_INO(sbi) (sbi->root_ino_num) 2962784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_NODE_INO(sbi) (sbi->node_ino_num) 2972784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_META_INO(sbi) (sbi->meta_ino_num) 2982784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 2992784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim/* This flag is used by node and meta inodes, and by recovery */ 3002784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define GFP_F2FS_ZERO (GFP_NOFS | __GFP_ZERO) 301036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 3022784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim/* 3032784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim * For further optimization on multi-head logs, on-disk layout supports maximum 3042784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim * 16 logs by default. The number, 16, is expected to cover all the cases 3052784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim * enoughly. The implementaion currently uses no more than 6 logs. 3062784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim * Half the logs are used for nodes, and the other half are used for data. 3072784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim */ 3082784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define MAX_ACTIVE_LOGS 16 3092784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define MAX_ACTIVE_NODE_LOGS 8 3102784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define MAX_ACTIVE_DATA_LOGS 8 3112784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 3122784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim/* 3132784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim * For superblock 3142784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim */ 315036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_super_block { 316bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 magic; /* Magic Number */ 317bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le16 major_ver; /* Major Version */ 318bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le16 minor_ver; /* Minor Version */ 319bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 log_sectorsize; /* log2 sector size in bytes */ 320bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 log_sectors_per_block; /* log2 # of sectors per block */ 321bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 log_blocksize; /* log2 block size in bytes */ 322bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 log_blocks_per_seg; /* log2 # of blocks per segment */ 323bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 segs_per_sec; /* # of segments per section */ 324bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 secs_per_zone; /* # of sections per zone */ 325bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 checksum_offset; /* checksum offset inside super block */ 326bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le64 block_count; /* total # of user blocks */ 327bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 section_count; /* total # of sections */ 328bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 segment_count; /* total # of segments */ 329bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 segment_count_ckpt; /* # of segments for checkpoint */ 330bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 segment_count_sit; /* # of segments for SIT */ 331bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 segment_count_nat; /* # of segments for NAT */ 332bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 segment_count_ssa; /* # of segments for SSA */ 333bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 segment_count_main; /* # of segments for main area */ 334bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 segment0_blkaddr; /* start block address of segment 0 */ 335bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 cp_blkaddr; /* start block address of checkpoint */ 336bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 sit_blkaddr; /* start block address of SIT */ 337bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 nat_blkaddr; /* start block address of NAT */ 338bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 ssa_blkaddr; /* start block address of SSA */ 339bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 main_blkaddr; /* start block address of main area */ 340bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 root_ino; /* root inode number */ 341bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 node_ino; /* node inode number */ 342bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 meta_ino; /* meta inode number */ 343bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __u8 uuid[16]; /* 128-bit uuid for volume */ 344bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le16 volume_name[512]; /* volume name */ 345bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 extension_count; /* # of extensions below */ 346bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __u8 extension_list[F2FS_MAX_EXTENSION][8]; /* extension array */ 347fd9816f31e5cd668962f00511d7a91d055d76048Changman Lee __le32 cp_payload; 348036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 349036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 350036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim/* 351036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim * For checkpoint 352036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim */ 353de6c1c7ce25841547813c71ca3b6d067300f0530Jaegeuk Kim#define CP_FSCK_FLAG 0x00000010 35422a75edd47adea7d466ecd245c62b75fd1866628Jaegeuk Kim#define CP_ERROR_FLAG 0x00000008 35522a75edd47adea7d466ecd245c62b75fd1866628Jaegeuk Kim#define CP_COMPACT_SUM_FLAG 0x00000004 35622a75edd47adea7d466ecd245c62b75fd1866628Jaegeuk Kim#define CP_ORPHAN_PRESENT_FLAG 0x00000002 35722a75edd47adea7d466ecd245c62b75fd1866628Jaegeuk Kim#define CP_UMOUNT_FLAG 0x00000001 35822a75edd47adea7d466ecd245c62b75fd1866628Jaegeuk Kim 359036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_checkpoint { 360bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le64 checkpoint_ver; /* checkpoint block version number */ 361036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le64 user_block_count; /* # of user blocks */ 362bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le64 valid_block_count; /* # of valid blocks in main area */ 363036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 rsvd_segment_count; /* # of reserved segments for gc */ 364036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 overprov_segment_count; /* # of overprovision segments */ 365bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 free_segment_count; /* # of free segments in main area */ 366036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 367036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim /* information of current node segments */ 368036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 cur_node_segno[MAX_ACTIVE_NODE_LOGS]; 369036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le16 cur_node_blkoff[MAX_ACTIVE_NODE_LOGS]; 370036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim /* information of current data segments */ 371036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 cur_data_segno[MAX_ACTIVE_DATA_LOGS]; 372036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le16 cur_data_blkoff[MAX_ACTIVE_DATA_LOGS]; 373036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 ckpt_flags; /* Flags : umount and journal_present */ 374bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 cp_pack_total_block_count; /* total # of one cp pack */ 375036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 cp_pack_start_sum; /* start block number of data summary */ 376036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 valid_node_count; /* Total number of valid nodes */ 377036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 valid_inode_count; /* Total number of valid inodes */ 378036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 next_free_nid; /* Next free node number */ 379036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 sit_ver_bitmap_bytesize; /* Default value 64 */ 380036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 nat_ver_bitmap_bytesize; /* Default value 256 */ 381bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 checksum_offset; /* checksum offset inside cp block */ 382bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le64 elapsed_time; /* mounted time */ 383036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim /* allocation type of current segment */ 384036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim unsigned char alloc_type[MAX_ACTIVE_LOGS]; 385036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 386bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim /* SIT and NAT version bitmap */ 387036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim unsigned char sit_nat_version_bitmap[1]; 388036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 389036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 390036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim/* 3912784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim * For orphan inode management 3922784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim */ 3932784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_ORPHANS_PER_BLOCK 1020 3942784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 3952784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kimstruct f2fs_orphan_block { 3962784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim __le32 ino[F2FS_ORPHANS_PER_BLOCK]; /* inode numbers */ 3972784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim __le32 reserved; /* reserved */ 3982784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim __le16 blk_addr; /* block index in current CP */ 3992784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim __le16 blk_count; /* Number of orphan inode blocks in CP */ 4002784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim __le32 entry_count; /* Total number of orphan nodes in current CP */ 4012784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim __le32 check_sum; /* CRC32 for orphan inode block */ 4022784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim} __attribute__((packed)); 4032784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 4042784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim/* 405036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim * For NODE structure 406036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim */ 407036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_extent { 408bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 fofs; /* start file offset of the extent */ 409bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 blk_addr; /* start block address of the extent */ 410bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 len; /* lengh of the extent */ 411036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 412036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 413f5f440f08643f6b35ad0dd70a54805a5383c4a62Jaegeuk Kim#define F2FS_NAME_LEN 255 414cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim#define F2FS_INLINE_XATTR_ADDRS 50 /* 200 bytes for inline xattrs */ 415cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim#define DEF_ADDRS_PER_INODE 923 /* Address Pointers in an Inode */ 416cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim#define ADDRS_PER_INODE(fi) addrs_per_inode(fi) 417036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define ADDRS_PER_BLOCK 1018 /* Address Pointers in a Direct Block */ 418036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define NIDS_PER_BLOCK 1018 /* Node IDs in an Indirect Block */ 419036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 420cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim#define NODE_DIR1_BLOCK (DEF_ADDRS_PER_INODE + 1) 421cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim#define NODE_DIR2_BLOCK (DEF_ADDRS_PER_INODE + 2) 422cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim#define NODE_IND1_BLOCK (DEF_ADDRS_PER_INODE + 3) 423cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim#define NODE_IND2_BLOCK (DEF_ADDRS_PER_INODE + 4) 424cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim#define NODE_DIND_BLOCK (DEF_ADDRS_PER_INODE + 5) 425cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim 426cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim#define F2FS_INLINE_XATTR 0x01 /* file inline xattr flag */ 427cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim#define F2FS_INLINE_DATA 0x02 /* file inline data flag */ 4283a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim#define F2FS_INLINE_DENTRY 0x04 /* file inline dentry flag */ 4299464be283ebdbb17c8940bea6c8a4f7acb75299aJaegeuk Kim#define F2FS_DATA_EXIST 0x08 /* file inline data exist flag */ 4303a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim 431061ee67915ba3e8c86bde89a2efb1b8a9aadfb37Huajun Li#define MAX_INLINE_DATA (sizeof(__le32) * (DEF_ADDRS_PER_INODE - \ 432061ee67915ba3e8c86bde89a2efb1b8a9aadfb37Huajun Li F2FS_INLINE_XATTR_ADDRS - 1)) 433061ee67915ba3e8c86bde89a2efb1b8a9aadfb37Huajun Li 434061ee67915ba3e8c86bde89a2efb1b8a9aadfb37Huajun Li#define INLINE_DATA_OFFSET (PAGE_CACHE_SIZE - sizeof(struct node_footer) \ 435061ee67915ba3e8c86bde89a2efb1b8a9aadfb37Huajun Li - sizeof(__le32)*(DEF_ADDRS_PER_INODE + 5 - 1)) 436cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim 43799250ec1aa15ea329fb090fd8f4c1e7e7b50bba3Jaegeuk Kim#define DEF_DIR_LEVEL 0 43899250ec1aa15ea329fb090fd8f4c1e7e7b50bba3Jaegeuk Kim 439036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_inode { 440bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le16 i_mode; /* file mode */ 441bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __u8 i_advise; /* file hints */ 442cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim __u8 i_inline; /* file inline flags */ 443bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 i_uid; /* user ID */ 444bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 i_gid; /* group ID */ 445bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 i_links; /* links count */ 446bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le64 i_size; /* file size in bytes */ 447bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le64 i_blocks; /* file size in blocks */ 448bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le64 i_atime; /* access time */ 449bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le64 i_ctime; /* change time */ 450bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le64 i_mtime; /* modification time */ 451bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 i_atime_nsec; /* access time in nano scale */ 452bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 i_ctime_nsec; /* change time in nano scale */ 453bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 i_mtime_nsec; /* modification time in nano scale */ 454bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 i_generation; /* file version (for NFS) */ 455b5af7953f81018c9edd844bd1bc9f4f6752a756aJaegeuk Kim __le32 i_current_depth; /* only for directory depth */ 456bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 i_xattr_nid; /* nid to save xattr */ 457036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 i_flags; /* file attributes */ 458036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 i_pino; /* parent inode number */ 459036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 i_namelen; /* file name length */ 460f5f440f08643f6b35ad0dd70a54805a5383c4a62Jaegeuk Kim __u8 i_name[F2FS_NAME_LEN]; /* file name for SPOR */ 46199250ec1aa15ea329fb090fd8f4c1e7e7b50bba3Jaegeuk Kim __u8 i_dir_level; /* dentry_level for large dir */ 462036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 463036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct f2fs_extent i_ext; /* caching a largest extent */ 464036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 465cd1e4704d0cbf1cbb49b3f33c576566b4b1e296eJaegeuk Kim __le32 i_addr[DEF_ADDRS_PER_INODE]; /* Pointers to data blocks */ 466036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 467036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 i_nid[5]; /* direct(2), indirect(2), 468036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim double_indirect(1) node id */ 469036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 470036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 471036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct direct_node { 4722784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim __le32 addr[ADDRS_PER_BLOCK]; /* array of data block address */ 473036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 474036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 475036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct indirect_node { 4762784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim __le32 nid[NIDS_PER_BLOCK]; /* array of data block address */ 477036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 478036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 4792784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kimenum { 4802784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim COLD_BIT_SHIFT = 0, 4812784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim FSYNC_BIT_SHIFT, 4822784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim DENT_BIT_SHIFT, 4832784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim OFFSET_BIT_SHIFT 4842784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim}; 4852784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 4863b4b82634489b2f9d367b1f897d51a341208d163Jaegeuk Kim#define XATTR_NODE_OFFSET ((((unsigned int)-1) << OFFSET_BIT_SHIFT) \ 4873b4b82634489b2f9d367b1f897d51a341208d163Jaegeuk Kim >> OFFSET_BIT_SHIFT) 4883b4b82634489b2f9d367b1f897d51a341208d163Jaegeuk Kim 489036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct node_footer { 490bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 nid; /* node id */ 491bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 ino; /* inode nunmber */ 492036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 flag; /* include cold/fsync/dentry marks and offset */ 493036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le64 cp_ver; /* checkpoint version */ 494036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 next_blkaddr; /* next node page block address */ 495036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 496036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 497036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_node { 498bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim /* can be one of three types: inode, direct, and indirect types */ 499036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim union { 500036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct f2fs_inode i; 501036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct direct_node dn; 502036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct indirect_node in; 503036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim }; 504036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct node_footer footer; 505036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 506036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 507036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim/* 508036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim * For NAT entries 509036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim */ 5102784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define NAT_ENTRY_PER_BLOCK (PAGE_CACHE_SIZE / sizeof(struct f2fs_nat_entry)) 511036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 512036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_nat_entry { 513bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __u8 version; /* latest version of cached nat entry */ 514bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 ino; /* inode number */ 515bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 block_addr; /* block address */ 516036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 517036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 518036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_nat_block { 519036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct f2fs_nat_entry entries[NAT_ENTRY_PER_BLOCK]; 520036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 521036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 522036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim/* 523036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim * For SIT entries 524bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim * 525bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim * Each segment is 2MB in size by default so that a bitmap for validity of 526bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim * there-in blocks should occupy 64 bytes, 512 bits. 527bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim * Not allow to change this. 528036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim */ 5292784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define SIT_VBLOCK_MAP_SIZE 64 530036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define SIT_ENTRY_PER_BLOCK (PAGE_CACHE_SIZE / sizeof(struct f2fs_sit_entry)) 531036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 53299b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim/* 5332794728f818c72541be052d1b54559d79d8a3aa7Changman Lee * F2FS uses 4 bytes to represent block address. As a result, supported size of 5342794728f818c72541be052d1b54559d79d8a3aa7Changman Lee * disk is 16 TB and it equals to 16 * 1024 * 1024 / 2 segments. 5352794728f818c72541be052d1b54559d79d8a3aa7Changman Lee */ 5362794728f818c72541be052d1b54559d79d8a3aa7Changman Lee#define F2FS_MAX_SEGMENT ((16 * 1024 * 1024) / 2) 5372794728f818c72541be052d1b54559d79d8a3aa7Changman Lee#define MAX_SIT_BITMAP_SIZE ((F2FS_MAX_SEGMENT / SIT_ENTRY_PER_BLOCK) / 8) 5382794728f818c72541be052d1b54559d79d8a3aa7Changman Lee 5392794728f818c72541be052d1b54559d79d8a3aa7Changman Lee/* 54099b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * Note that f2fs_sit_entry->vblocks has the following bit-field information. 54199b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * [15:10] : allocation type such as CURSEG_XXXX_TYPE 54299b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * [9:0] : valid block count 54399b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim */ 5442784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define SIT_VBLOCKS_SHIFT 10 5452784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define SIT_VBLOCKS_MASK ((1 << SIT_VBLOCKS_SHIFT) - 1) 5462784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define GET_SIT_VBLOCKS(raw_sit) \ 5472784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim (le16_to_cpu((raw_sit)->vblocks) & SIT_VBLOCKS_MASK) 5482784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define GET_SIT_TYPE(raw_sit) \ 5492784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim ((le16_to_cpu((raw_sit)->vblocks) & ~SIT_VBLOCKS_MASK) \ 5502784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim >> SIT_VBLOCKS_SHIFT) 551bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim 552036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_sit_entry { 553bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le16 vblocks; /* reference above */ 554bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __u8 valid_map[SIT_VBLOCK_MAP_SIZE]; /* bitmap for valid blocks */ 555bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le64 mtime; /* segment age for cleaning */ 556036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 557036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 558036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_sit_block { 559036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct f2fs_sit_entry entries[SIT_ENTRY_PER_BLOCK]; 560036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 561036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 5622784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim/* 56399b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * For segment summary 56499b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * 565bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim * One summary block contains exactly 512 summary entries, which represents 566bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim * exactly 2MB segment by default. Not allow to change the basic units. 567bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim * 5682784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim * NOTE: For initializing fields, you must use set_summary 56999b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * 57099b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * - If data page, nid represents dnode's nid 57199b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * - If node page, nid represents the node page's nid. 57299b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * 57399b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * The ofs_in_node is used by only data page. It represents offset 57499b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * from node's page's beginning to get a data block address. 57599b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim * ex) data_blkaddr = (block_t)(nodepage_start_address + ofs_in_node) 57699b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim */ 577bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim#define ENTRIES_IN_SUM 512 5782784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define SUMMARY_SIZE (7) /* sizeof(struct summary) */ 5792784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define SUM_FOOTER_SIZE (5) /* sizeof(struct summary_footer) */ 5807f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee#define SUM_ENTRIES_SIZE (SUMMARY_SIZE * ENTRIES_IN_SUM) 581bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim 582bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim/* a summary entry for a 4KB-sized block in a segment */ 583036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_summary { 584036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 nid; /* parent node id */ 585036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim union { 586036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __u8 reserved[3]; 587036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct { 588036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __u8 version; /* node version number */ 58999b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim __le16 ofs_in_node; /* block index in parent node */ 590036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim } __attribute__((packed)); 591036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim }; 592036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 593036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 594bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim/* summary block type, node or data, is stored to the summary_footer */ 595bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim#define SUM_TYPE_NODE (1) 596bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim#define SUM_TYPE_DATA (0) 597036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 598bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kimstruct summary_footer { 599bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim unsigned char entry_type; /* SUM_TYPE_XXX */ 600bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __u32 check_sum; /* summary checksum */ 601036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 602036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 6032784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define SUM_JOURNAL_SIZE (F2FS_BLKSIZE - SUM_FOOTER_SIZE -\ 6047f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee SUM_ENTRIES_SIZE) 605036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define NAT_JOURNAL_ENTRIES ((SUM_JOURNAL_SIZE - 2) /\ 606036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim sizeof(struct nat_journal_entry)) 607036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define NAT_JOURNAL_RESERVED ((SUM_JOURNAL_SIZE - 2) %\ 608036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim sizeof(struct nat_journal_entry)) 609036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define SIT_JOURNAL_ENTRIES ((SUM_JOURNAL_SIZE - 2) /\ 610036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim sizeof(struct sit_journal_entry)) 611036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define SIT_JOURNAL_RESERVED ((SUM_JOURNAL_SIZE - 2) %\ 612036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim sizeof(struct sit_journal_entry)) 613bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim/* 614bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim * frequently updated NAT/SIT entries can be stored in the spare area in 615bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim * summary blocks 616bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim */ 617036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimenum { 618036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim NAT_JOURNAL = 0, 619036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim SIT_JOURNAL 620036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim}; 621036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 622bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kimstruct nat_journal_entry { 623bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 nid; 624bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim struct f2fs_nat_entry ne; 625bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim} __attribute__((packed)); 626bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim 627036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct nat_journal { 628036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct nat_journal_entry entries[NAT_JOURNAL_ENTRIES]; 629036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __u8 reserved[NAT_JOURNAL_RESERVED]; 630036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 631036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 632bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kimstruct sit_journal_entry { 633bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 segno; 634bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim struct f2fs_sit_entry se; 635bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim} __attribute__((packed)); 636bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim 637036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct sit_journal { 638036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct sit_journal_entry entries[SIT_JOURNAL_ENTRIES]; 639036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __u8 reserved[SIT_JOURNAL_RESERVED]; 640036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 641036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 642bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim/* 4KB-sized summary block structure */ 643036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_summary_block { 644036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct f2fs_summary entries[ENTRIES_IN_SUM]; 645036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim union { 646036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le16 n_nats; 647036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le16 n_sits; 648036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim }; 649bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim /* spare area is used by NAT or SIT journals */ 650036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim union { 651036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct nat_journal nat_j; 652036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct sit_journal sit_j; 653036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim }; 654036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct summary_footer footer; 655036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 656036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 657036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim/* 658036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim * For directory operations 659036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim */ 6602784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_DOT_HASH 0 6612784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_DDOT_HASH F2FS_DOT_HASH 6622784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_MAX_HASH (~((0x3ULL) << 62)) 6632784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim#define F2FS_HASH_COL_BIT ((0x1ULL) << 63) 6642784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 6652784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kimtypedef __le32 f2fs_hash_t; 6662784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 66799b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim/* One directory entry slot covers 8bytes-long file name */ 668f5f440f08643f6b35ad0dd70a54805a5383c4a62Jaegeuk Kim#define F2FS_SLOT_LEN 8 669f5f440f08643f6b35ad0dd70a54805a5383c4a62Jaegeuk Kim#define F2FS_SLOT_LEN_BITS 3 6702784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim 671f5f440f08643f6b35ad0dd70a54805a5383c4a62Jaegeuk Kim#define GET_DENTRY_SLOTS(x) ((x + F2FS_SLOT_LEN - 1) >> F2FS_SLOT_LEN_BITS) 67299b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim 67399b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim/* the number of dentry in a block */ 67499b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim#define NR_DENTRY_IN_BLOCK 214 67599b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim 67699b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim/* MAX level for dir lookup */ 67799b74393403aab847587d6c37cd1aaf1d935a81dJaegeuk Kim#define MAX_DIR_HASH_DEPTH 63 678036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 679036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define SIZE_OF_DIR_ENTRY 11 /* by byte */ 680036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define SIZE_OF_DENTRY_BITMAP ((NR_DENTRY_IN_BLOCK + BITS_PER_BYTE - 1) / \ 6812784bd55dd9730f3a5d2126c82094990fad053c1Jaegeuk Kim BITS_PER_BYTE) 682036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim#define SIZE_OF_RESERVED (PAGE_SIZE - ((SIZE_OF_DIR_ENTRY + \ 683f5f440f08643f6b35ad0dd70a54805a5383c4a62Jaegeuk Kim F2FS_SLOT_LEN) * \ 684036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim NR_DENTRY_IN_BLOCK + SIZE_OF_DENTRY_BITMAP)) 685036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 686f5f440f08643f6b35ad0dd70a54805a5383c4a62Jaegeuk Kim/* One directory entry slot representing F2FS_SLOT_LEN-sized file name */ 687036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_dir_entry { 688036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __le32 hash_code; /* hash code of file name */ 689bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le32 ino; /* inode number */ 690bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __le16 name_len; /* lengh of file name */ 691bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim __u8 file_type; /* file type */ 692036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 693036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 694bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim/* 4KB-sized directory entry block */ 695036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kimstruct f2fs_dentry_block { 696bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim /* validity bitmap for directory entries in each block */ 697036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __u8 dentry_bitmap[SIZE_OF_DENTRY_BITMAP]; 698036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim __u8 reserved[SIZE_OF_RESERVED]; 699036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim struct f2fs_dir_entry dentry[NR_DENTRY_IN_BLOCK]; 700f5f440f08643f6b35ad0dd70a54805a5383c4a62Jaegeuk Kim __u8 filename[NR_DENTRY_IN_BLOCK][F2FS_SLOT_LEN]; 701036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim} __attribute__((packed)); 702036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 7033a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim/* for inline dir */ 7043a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim#define NR_INLINE_DENTRY (MAX_INLINE_DATA * BITS_PER_BYTE / \ 7053a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 7063a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim BITS_PER_BYTE + 1)) 7073a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim#define INLINE_DENTRY_BITMAP_SIZE ((NR_INLINE_DENTRY + \ 7083a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim BITS_PER_BYTE - 1) / BITS_PER_BYTE) 7093a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim#define INLINE_RESERVED_SIZE (MAX_INLINE_DATA - \ 7103a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim ((SIZE_OF_DIR_ENTRY + F2FS_SLOT_LEN) * \ 7113a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim NR_INLINE_DENTRY + INLINE_DENTRY_BITMAP_SIZE)) 7123a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim 7133a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim/* inline directory entry structure */ 7143a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kimstruct f2fs_inline_dentry { 7153a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim __u8 dentry_bitmap[INLINE_DENTRY_BITMAP_SIZE]; 7163a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim __u8 reserved[INLINE_RESERVED_SIZE]; 7173a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim struct f2fs_dir_entry dentry[NR_INLINE_DENTRY]; 7183a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim __u8 filename[NR_INLINE_DENTRY][F2FS_SLOT_LEN]; 7193a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim} __packed; 7203a8c9a69525f75a6c59bee0eb3d882ddc341b3f1Jaegeuk Kim 721bbf6e62360d8eae415dc7d19325b7d70079db0e1Jaegeuk Kim/* file types used in inode_info->flags */ 7227f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeenum FILE_TYPE { 723036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim F2FS_FT_UNKNOWN, 72476a069430a295a27bf478d4a5d2fd71112a11a54Jaegeuk Kim F2FS_FT_REG_FILE, 72576a069430a295a27bf478d4a5d2fd71112a11a54Jaegeuk Kim F2FS_FT_DIR, 72676a069430a295a27bf478d4a5d2fd71112a11a54Jaegeuk Kim F2FS_FT_CHRDEV, 72776a069430a295a27bf478d4a5d2fd71112a11a54Jaegeuk Kim F2FS_FT_BLKDEV, 72876a069430a295a27bf478d4a5d2fd71112a11a54Jaegeuk Kim F2FS_FT_FIFO, 72976a069430a295a27bf478d4a5d2fd71112a11a54Jaegeuk Kim F2FS_FT_SOCK, 73076a069430a295a27bf478d4a5d2fd71112a11a54Jaegeuk Kim F2FS_FT_SYMLINK, 73176a069430a295a27bf478d4a5d2fd71112a11a54Jaegeuk Kim F2FS_FT_MAX, 7327f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee /* added for fsck */ 73376a069430a295a27bf478d4a5d2fd71112a11a54Jaegeuk Kim F2FS_FT_ORPHAN, 7343b4b82634489b2f9d367b1f897d51a341208d163Jaegeuk Kim F2FS_FT_XATTR, 7352c82eafaa38922a370545dc56d6210bf94b929e9JP Abgrall F2FS_FT_LAST_FILE_TYPE = F2FS_FT_XATTR, 736036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim}; 737036d45e551ca5405c726f8ccb51f446620cd4afJaegeuk Kim 7387f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee/* from f2fs/segment.h */ 7397f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeenum { 7407f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee LFS = 0, 7417f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee SSR 7427f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee}; 7437f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee 7447f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern void ASCIIToUNICODE(u_int16_t *, u_int8_t *); 7457f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int log_base_2(u_int32_t); 746465e4e7f10f59efba184fdd0788e92ea1488011cJaegeuk Kimextern unsigned int addrs_per_inode(struct f2fs_inode *); 7477f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee 7487f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int get_bits_in_byte(unsigned char n); 7497f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int set_bit(unsigned int nr,void * addr); 7507f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int clear_bit(unsigned int nr, void * addr); 7517f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int test_bit(unsigned int nr, const void * addr); 7527f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int f2fs_test_bit(unsigned int, const char *); 7537f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int f2fs_set_bit(unsigned int, char *); 7547f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int f2fs_clear_bit(unsigned int, char *); 755b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kimextern unsigned long find_next_bit(const unsigned long *, 756b3a4f9457718eb1aecb85d082f9e6f737ce3af86Jaegeuk Kim unsigned long, unsigned long); 7577f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Lee 7587f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern u_int32_t f2fs_cal_crc32(u_int32_t, void *, int); 7597f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int f2fs_crc_valid(u_int32_t blk_crc, void *buf, int len); 760e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 7617f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern void f2fs_init_configuration(struct f2fs_configuration *); 7622c877a862d6d22ff5324e90b726c7d6a26febfb7Jaegeuk Kimextern int f2fs_dev_is_umounted(struct f2fs_configuration *); 7637f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int f2fs_get_device_info(struct f2fs_configuration *); 764c5786963aef93bb7747cb04454e1041738b3255fJaegeuk Kimextern void f2fs_finalize_device(struct f2fs_configuration *); 765e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 7667f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int dev_read(void *, __u64, size_t); 7677f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int dev_write(void *, __u64, size_t); 768dc530859c5e422b10ab70bc3b9d4b7ff0d004d57Jaegeuk Kimextern int dev_write_block(void *, __u64); 769f70644c5047f9f912836724a994ccab18b5b5dd1Jaegeuk Kimextern int dev_write_dump(void *, __u64, size_t); 770a35529fce0c5171562ec0ebebcc6120d1604924bJP Abgrall/* All bytes in the buffer must be 0 use dev_fill(). */ 771a35529fce0c5171562ec0ebebcc6120d1604924bJP Abgrallextern int dev_fill(void *, __u64, size_t); 772e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 7737f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int dev_read_block(void *, __u64); 7747f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern int dev_read_blocks(void *, __u64, __u32 ); 775e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 776347fe81d8e860d29a254ac066d87c5efe87d717bJaegeuk Kimf2fs_hash_t f2fs_dentry_hash(const unsigned char *, int); 777e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 7787f35b548d4b0e3c8577ad7a09433e589a0ab3f2aChangman Leeextern struct f2fs_configuration config; 779e69e4378500b836863dfb7f6e88e39935f23ae80Jaegeuk Kim 7805043dffbd1d2b89c71966dde31780b0ca313b5c9Jaegeuk Kim#endif /*__F2FS_FS_H */ 781