^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * linux/fs/ufs/util.h
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 1998
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Daniel Pirkl <daniel.pirkl@email.cz>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Charles University, Faculty of Mathematics and Physics
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/buffer_head.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <linux/fs.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "swab.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * some useful macros
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #define in_range(b,first,len) ((b)>=(first)&&(b)<(first)+(len))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * functions used for retyping
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) static inline struct ufs_buffer_head *UCPI_UBH(struct ufs_cg_private_info *cpi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) return &cpi->c_ubh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) static inline struct ufs_buffer_head *USPI_UBH(struct ufs_sb_private_info *spi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) return &spi->s_ubh;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) * macros used for accessing structures
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) static inline s32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) ufs_get_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) struct ufs_super_block_third *usb3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) case UFS_ST_SUNOS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) if (fs32_to_cpu(sb, usb3->fs_postblformat) == UFS_42POSTBLFMT)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) return fs32_to_cpu(sb, usb1->fs_u0.fs_sun.fs_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) fallthrough; /* to UFS_ST_SUN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) case UFS_ST_SUN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) return fs32_to_cpu(sb, usb3->fs_un2.fs_sun.fs_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) case UFS_ST_SUNx86:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) return fs32_to_cpu(sb, usb1->fs_u1.fs_sunx86.fs_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) case UFS_ST_44BSD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) return fs32_to_cpu(sb, usb3->fs_un2.fs_44.fs_state);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) ufs_set_fs_state(struct super_block *sb, struct ufs_super_block_first *usb1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct ufs_super_block_third *usb3, s32 value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) case UFS_ST_SUNOS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) if (fs32_to_cpu(sb, usb3->fs_postblformat) == UFS_42POSTBLFMT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) usb1->fs_u0.fs_sun.fs_state = cpu_to_fs32(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) fallthrough; /* to UFS_ST_SUN */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) case UFS_ST_SUN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) usb3->fs_un2.fs_sun.fs_state = cpu_to_fs32(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) case UFS_ST_SUNx86:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) usb1->fs_u1.fs_sunx86.fs_state = cpu_to_fs32(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) case UFS_ST_44BSD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) usb3->fs_un2.fs_44.fs_state = cpu_to_fs32(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) static inline u32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) ufs_get_fs_npsect(struct super_block *sb, struct ufs_super_block_first *usb1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) struct ufs_super_block_third *usb3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) if ((UFS_SB(sb)->s_flags & UFS_ST_MASK) == UFS_ST_SUNx86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return fs32_to_cpu(sb, usb3->fs_un2.fs_sunx86.fs_npsect);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) return fs32_to_cpu(sb, usb1->fs_u1.fs_sun.fs_npsect);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) static inline u64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) ufs_get_fs_qbmask(struct super_block *sb, struct ufs_super_block_third *usb3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) __fs64 tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) case UFS_ST_SUNOS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) case UFS_ST_SUN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sun.fs_qbmask[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sun.fs_qbmask[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) case UFS_ST_SUNx86:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sunx86.fs_qbmask[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sunx86.fs_qbmask[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) case UFS_ST_44BSD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_44.fs_qbmask[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_44.fs_qbmask[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return fs64_to_cpu(sb, tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static inline u64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) ufs_get_fs_qfmask(struct super_block *sb, struct ufs_super_block_third *usb3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) __fs64 tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) switch (UFS_SB(sb)->s_flags & UFS_ST_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) case UFS_ST_SUNOS:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) case UFS_ST_SUN:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sun.fs_qfmask[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sun.fs_qfmask[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) case UFS_ST_SUNx86:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_sunx86.fs_qfmask[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_sunx86.fs_qfmask[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) case UFS_ST_44BSD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) ((__fs32 *)&tmp)[0] = usb3->fs_un2.fs_44.fs_qfmask[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) ((__fs32 *)&tmp)[1] = usb3->fs_un2.fs_44.fs_qfmask[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) return fs64_to_cpu(sb, tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) static inline u16
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) ufs_get_de_namlen(struct super_block *sb, struct ufs_dir_entry *de)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) if ((UFS_SB(sb)->s_flags & UFS_DE_MASK) == UFS_DE_OLD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) return fs16_to_cpu(sb, de->d_u.d_namlen);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) return de->d_u.d_44.d_namlen; /* XXX this seems wrong */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) ufs_set_de_namlen(struct super_block *sb, struct ufs_dir_entry *de, u16 value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if ((UFS_SB(sb)->s_flags & UFS_DE_MASK) == UFS_DE_OLD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) de->d_u.d_namlen = cpu_to_fs16(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) de->d_u.d_44.d_namlen = value; /* XXX this seems wrong */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) ufs_set_de_type(struct super_block *sb, struct ufs_dir_entry *de, int mode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) if ((UFS_SB(sb)->s_flags & UFS_DE_MASK) != UFS_DE_44BSD)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) * TODO turn this into a table lookup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) switch (mode & S_IFMT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) case S_IFSOCK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) de->d_u.d_44.d_type = DT_SOCK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) case S_IFLNK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) de->d_u.d_44.d_type = DT_LNK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) case S_IFREG:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) de->d_u.d_44.d_type = DT_REG;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) case S_IFBLK:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) de->d_u.d_44.d_type = DT_BLK;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) case S_IFDIR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) de->d_u.d_44.d_type = DT_DIR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) case S_IFCHR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) de->d_u.d_44.d_type = DT_CHR;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) case S_IFIFO:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) de->d_u.d_44.d_type = DT_FIFO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) de->d_u.d_44.d_type = DT_UNKNOWN;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) static inline u32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) ufs_get_inode_uid(struct super_block *sb, struct ufs_inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) switch (UFS_SB(sb)->s_flags & UFS_UID_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) case UFS_UID_44BSD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) return fs32_to_cpu(sb, inode->ui_u3.ui_44.ui_uid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) case UFS_UID_EFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) if (inode->ui_u1.oldids.ui_suid == 0xFFFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) return fs32_to_cpu(sb, inode->ui_u3.ui_sun.ui_uid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) return fs16_to_cpu(sb, inode->ui_u1.oldids.ui_suid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) ufs_set_inode_uid(struct super_block *sb, struct ufs_inode *inode, u32 value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) switch (UFS_SB(sb)->s_flags & UFS_UID_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) case UFS_UID_44BSD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) inode->ui_u3.ui_44.ui_uid = cpu_to_fs32(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) inode->ui_u1.oldids.ui_suid = cpu_to_fs16(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) case UFS_UID_EFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) inode->ui_u3.ui_sun.ui_uid = cpu_to_fs32(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) if (value > 0xFFFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) value = 0xFFFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) inode->ui_u1.oldids.ui_suid = cpu_to_fs16(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) static inline u32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) ufs_get_inode_gid(struct super_block *sb, struct ufs_inode *inode)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) switch (UFS_SB(sb)->s_flags & UFS_UID_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) case UFS_UID_44BSD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) return fs32_to_cpu(sb, inode->ui_u3.ui_44.ui_gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) case UFS_UID_EFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if (inode->ui_u1.oldids.ui_sgid == 0xFFFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) return fs32_to_cpu(sb, inode->ui_u3.ui_sun.ui_gid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) return fs16_to_cpu(sb, inode->ui_u1.oldids.ui_sgid);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) static inline void
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) ufs_set_inode_gid(struct super_block *sb, struct ufs_inode *inode, u32 value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) switch (UFS_SB(sb)->s_flags & UFS_UID_MASK) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) case UFS_UID_44BSD:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) inode->ui_u3.ui_44.ui_gid = cpu_to_fs32(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) inode->ui_u1.oldids.ui_sgid = cpu_to_fs16(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) case UFS_UID_EFT:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) inode->ui_u3.ui_sun.ui_gid = cpu_to_fs32(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) if (value > 0xFFFF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) value = 0xFFFF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) fallthrough;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) inode->ui_u1.oldids.ui_sgid = cpu_to_fs16(sb, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) extern dev_t ufs_get_inode_dev(struct super_block *, struct ufs_inode_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) extern void ufs_set_inode_dev(struct super_block *, struct ufs_inode_info *, dev_t);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) extern int ufs_prepare_chunk(struct page *page, loff_t pos, unsigned len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) * These functions manipulate ufs buffers
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) #define ubh_bread(sb,fragment,size) _ubh_bread_(uspi,sb,fragment,size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) extern struct ufs_buffer_head * _ubh_bread_(struct ufs_sb_private_info *, struct super_block *, u64 , u64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) extern struct ufs_buffer_head * ubh_bread_uspi(struct ufs_sb_private_info *, struct super_block *, u64, u64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) extern void ubh_brelse (struct ufs_buffer_head *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) extern void ubh_brelse_uspi (struct ufs_sb_private_info *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) extern void ubh_mark_buffer_dirty (struct ufs_buffer_head *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) extern void ubh_mark_buffer_uptodate (struct ufs_buffer_head *, int);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) extern void ubh_sync_block(struct ufs_buffer_head *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) extern void ubh_bforget (struct ufs_buffer_head *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) extern int ubh_buffer_dirty (struct ufs_buffer_head *);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) #define ubh_ubhcpymem(mem,ubh,size) _ubh_ubhcpymem_(uspi,mem,ubh,size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) extern void _ubh_ubhcpymem_(struct ufs_sb_private_info *, unsigned char *, struct ufs_buffer_head *, unsigned);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) #define ubh_memcpyubh(ubh,mem,size) _ubh_memcpyubh_(uspi,ubh,mem,size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) extern void _ubh_memcpyubh_(struct ufs_sb_private_info *, struct ufs_buffer_head *, unsigned char *, unsigned);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) /* This functions works with cache pages*/
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) extern struct page *ufs_get_locked_page(struct address_space *mapping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) pgoff_t index);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) static inline void ufs_put_locked_page(struct page *page)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) unlock_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) put_page(page);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) * macros and inline function to get important structures from ufs_sb_private_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) static inline void *get_usb_offset(struct ufs_sb_private_info *uspi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) unsigned int offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) unsigned int index;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) index = offset >> uspi->s_fshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) offset &= ~uspi->s_fmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) return uspi->s_ubh.bh[index]->b_data + offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) #define ubh_get_usb_first(uspi) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) ((struct ufs_super_block_first *)get_usb_offset((uspi), 0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) #define ubh_get_usb_second(uspi) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) ((struct ufs_super_block_second *)get_usb_offset((uspi), UFS_SECTOR_SIZE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) #define ubh_get_usb_third(uspi) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) ((struct ufs_super_block_third *)get_usb_offset((uspi), 2*UFS_SECTOR_SIZE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) #define ubh_get_ucg(ubh) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) ((struct ufs_cylinder_group *)((ubh)->bh[0]->b_data))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) * Extract byte from ufs_buffer_head
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) * Extract the bits for a block from a map inside ufs_buffer_head
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) #define ubh_get_addr8(ubh,begin) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) ((u8*)(ubh)->bh[(begin) >> uspi->s_fshift]->b_data + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) ((begin) & ~uspi->s_fmask))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) #define ubh_get_addr16(ubh,begin) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) (((__fs16*)((ubh)->bh[(begin) >> (uspi->s_fshift-1)]->b_data)) + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) ((begin) & ((uspi->fsize>>1) - 1)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) #define ubh_get_addr32(ubh,begin) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) (((__fs32*)((ubh)->bh[(begin) >> (uspi->s_fshift-2)]->b_data)) + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) ((begin) & ((uspi->s_fsize>>2) - 1)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) #define ubh_get_addr64(ubh,begin) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) (((__fs64*)((ubh)->bh[(begin) >> (uspi->s_fshift-3)]->b_data)) + \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) ((begin) & ((uspi->s_fsize>>3) - 1)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) #define ubh_get_addr ubh_get_addr8
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) static inline void *ubh_get_data_ptr(struct ufs_sb_private_info *uspi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) struct ufs_buffer_head *ubh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) u64 blk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) if (uspi->fs_magic == UFS2_MAGIC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) return ubh_get_addr64(ubh, blk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) return ubh_get_addr32(ubh, blk);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) #define ubh_blkmap(ubh,begin,bit) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) ((*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) >> ((bit) & 7)) & (0xff >> (UFS_MAXFRAG - uspi->s_fpb)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) static inline u64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) ufs_freefrags(struct ufs_sb_private_info *uspi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) return ufs_blkstofrags(uspi->cs_total.cs_nbfree) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) uspi->cs_total.cs_nffree;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) * Macros to access cylinder group array structures
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) #define ubh_cg_blktot(ucpi,cylno) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) (*((__fs32*)ubh_get_addr(UCPI_UBH(ucpi), (ucpi)->c_btotoff + ((cylno) << 2))))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) #define ubh_cg_blks(ucpi,cylno,rpos) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) (*((__fs16*)ubh_get_addr(UCPI_UBH(ucpi), \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) (ucpi)->c_boff + (((cylno) * uspi->s_nrpos + (rpos)) << 1 ))))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) * Bitmap operations
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) * These functions work like classical bitmap operations.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) * The difference is that we don't have the whole bitmap
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) * in one contiguous chunk of memory, but in several buffers.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) * The parameters of each function are super_block, ufs_buffer_head and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) * position of the beginning of the bitmap.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) #define ubh_setbit(ubh,begin,bit) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) (*ubh_get_addr(ubh, (begin) + ((bit) >> 3)) |= (1 << ((bit) & 7)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) #define ubh_clrbit(ubh,begin,bit) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) (*ubh_get_addr (ubh, (begin) + ((bit) >> 3)) &= ~(1 << ((bit) & 7)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) #define ubh_isset(ubh,begin,bit) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) (*ubh_get_addr (ubh, (begin) + ((bit) >> 3)) & (1 << ((bit) & 7)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) #define ubh_isclr(ubh,begin,bit) (!ubh_isset(ubh,begin,bit))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) #define ubh_find_first_zero_bit(ubh,begin,size) _ubh_find_next_zero_bit_(uspi,ubh,begin,size,0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) #define ubh_find_next_zero_bit(ubh,begin,size,offset) _ubh_find_next_zero_bit_(uspi,ubh,begin,size,offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) static inline unsigned _ubh_find_next_zero_bit_(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) struct ufs_sb_private_info * uspi, struct ufs_buffer_head * ubh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) unsigned begin, unsigned size, unsigned offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) unsigned base, count, pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) size -= offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) begin <<= 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) offset += begin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) base = offset >> uspi->s_bpfshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) offset &= uspi->s_bpfmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) count = min_t(unsigned int, size + offset, uspi->s_bpf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) size -= count - offset;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) pos = find_next_zero_bit_le(ubh->bh[base]->b_data, count, offset);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) if (pos < count || !size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) base++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) offset = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) return (base << uspi->s_bpfshift) + pos - begin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) static inline unsigned find_last_zero_bit (unsigned char * bitmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) unsigned size, unsigned offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) unsigned bit, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) unsigned char * mapp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) unsigned char map;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) mapp = bitmap + (size >> 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) map = *mapp--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) bit = 1 << (size & 7);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) for (i = size; i > offset; i--) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) if ((map & bit) == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) if ((i & 7) != 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) bit >>= 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) map = *mapp--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) bit = 1 << 7;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) return i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) #define ubh_find_last_zero_bit(ubh,begin,size,offset) _ubh_find_last_zero_bit_(uspi,ubh,begin,size,offset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) static inline unsigned _ubh_find_last_zero_bit_(
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) struct ufs_sb_private_info * uspi, struct ufs_buffer_head * ubh,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) unsigned begin, unsigned start, unsigned end)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) unsigned base, count, pos, size;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) size = start - end;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) begin <<= 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) start += begin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) base = start >> uspi->s_bpfshift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) start &= uspi->s_bpfmask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) for (;;) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) count = min_t(unsigned int,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) size + (uspi->s_bpf - start), uspi->s_bpf)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) - (uspi->s_bpf - start);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) size -= count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) pos = find_last_zero_bit (ubh->bh[base]->b_data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) start, start - count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) if (pos > start - count || !size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) base--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) start = uspi->s_bpf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) return (base << uspi->s_bpfshift) + pos - begin;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) #define ubh_isblockclear(ubh,begin,block) (!_ubh_isblockset_(uspi,ubh,begin,block))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468) #define ubh_isblockset(ubh,begin,block) _ubh_isblockset_(uspi,ubh,begin,block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) static inline int _ubh_isblockset_(struct ufs_sb_private_info * uspi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) u8 mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473) switch (uspi->s_fpb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) case 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) return (*ubh_get_addr (ubh, begin + block) == 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) case 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) mask = 0x0f << ((block & 0x01) << 2);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) return (*ubh_get_addr (ubh, begin + (block >> 1)) & mask) == mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) mask = 0x03 << ((block & 0x03) << 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) return (*ubh_get_addr (ubh, begin + (block >> 2)) & mask) == mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) mask = 0x01 << (block & 0x07);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) return (*ubh_get_addr (ubh, begin + (block >> 3)) & mask) == mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) #define ubh_clrblock(ubh,begin,block) _ubh_clrblock_(uspi,ubh,begin,block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490) static inline void _ubh_clrblock_(struct ufs_sb_private_info * uspi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) switch (uspi->s_fpb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) case 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) *ubh_get_addr (ubh, begin + block) = 0x00;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) case 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) *ubh_get_addr (ubh, begin + (block >> 1)) &= ~(0x0f << ((block & 0x01) << 2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) *ubh_get_addr (ubh, begin + (block >> 2)) &= ~(0x03 << ((block & 0x03) << 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) *ubh_get_addr (ubh, begin + (block >> 3)) &= ~(0x01 << ((block & 0x07)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) #define ubh_setblock(ubh,begin,block) _ubh_setblock_(uspi,ubh,begin,block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510) static inline void _ubh_setblock_(struct ufs_sb_private_info * uspi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) struct ufs_buffer_head * ubh, unsigned begin, unsigned block)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) switch (uspi->s_fpb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) case 8:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515) *ubh_get_addr(ubh, begin + block) = 0xff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) case 4:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) *ubh_get_addr(ubh, begin + (block >> 1)) |= (0x0f << ((block & 0x01) << 2));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) *ubh_get_addr(ubh, begin + (block >> 2)) |= (0x03 << ((block & 0x03) << 1));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523) case 1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) *ubh_get_addr(ubh, begin + (block >> 3)) |= (0x01 << ((block & 0x07)));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529) static inline void ufs_fragacct (struct super_block * sb, unsigned blockmap,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) __fs32 * fraglist, int cnt)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) struct ufs_sb_private_info * uspi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) unsigned fragsize, pos;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) uspi = UFS_SB(sb)->s_uspi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) fragsize = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) for (pos = 0; pos < uspi->s_fpb; pos++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) if (blockmap & (1 << pos)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) fragsize++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542) else if (fragsize > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) fs32_add(sb, &fraglist[fragsize], cnt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) fragsize = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547) if (fragsize > 0 && fragsize < uspi->s_fpb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) fs32_add(sb, &fraglist[fragsize], cnt);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) static inline void *ufs_get_direct_data_ptr(struct ufs_sb_private_info *uspi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) struct ufs_inode_info *ufsi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553) unsigned blk)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) BUG_ON(blk > UFS_TIND_BLOCK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) return uspi->fs_magic == UFS2_MAGIC ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) (void *)&ufsi->i_u1.u2_i_data[blk] :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) (void *)&ufsi->i_u1.i_data[blk];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) static inline u64 ufs_data_ptr_to_cpu(struct super_block *sb, void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) return UFS_SB(sb)->s_uspi->fs_magic == UFS2_MAGIC ?
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) fs64_to_cpu(sb, *(__fs64 *)p) :
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) fs32_to_cpu(sb, *(__fs32 *)p);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) static inline void ufs_cpu_to_data_ptr(struct super_block *sb, void *p, u64 val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) if (UFS_SB(sb)->s_uspi->fs_magic == UFS2_MAGIC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) *(__fs64 *)p = cpu_to_fs64(sb, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) *(__fs32 *)p = cpu_to_fs32(sb, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) static inline void ufs_data_ptr_clear(struct ufs_sb_private_info *uspi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577) void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) if (uspi->fs_magic == UFS2_MAGIC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580) *(__fs64 *)p = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) *(__fs32 *)p = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) static inline int ufs_is_data_ptr_zero(struct ufs_sb_private_info *uspi,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586) void *p)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) if (uspi->fs_magic == UFS2_MAGIC)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) return *(__fs64 *)p == 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) return *(__fs32 *)p == 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) static inline __fs32 ufs_get_seconds(struct super_block *sbp)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) time64_t now = ktime_get_real_seconds();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) /* Signed 32-bit interpretation wraps around in 2038, which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) * happens in ufs1 inode stamps but not ufs2 using 64-bits
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) * stamps. For superblock and blockgroup, let's assume
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601) * unsigned 32-bit stamps, which are good until y2106.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) * Wrap around rather than clamp here to make the dirty
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) * file system detection work in the superblock stamp.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) return cpu_to_fs32(sbp, lower_32_bits(now));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) }
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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