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[xfs] Support XFS bigtime feature bit

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Current version of mkfs.xfs enables this feature by default.
Now KolibriOS can read such partitions too.

git-svn-id: svn://kolibrios.org@9888 a494cfbc-eb01-0410-851d-a64ba20cac60
This commit is contained in:
Ivan B
2023-01-02 00:53:31 +00:00
parent 3e0d321fe1
commit df7f78788c
3 changed files with 68 additions and 41 deletions
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76
kernel/trunk/fs/xfs.asm
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@@ -1,6 +1,6 @@
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;; ;;
;; Copyright (C) KolibriOS team 2013-2020. All rights reserved. ;;
;; Copyright (C) KolibriOS team 2013-2022. All rights reserved. ;;
;; Distributed under terms of the GNU General Public License ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
@@ -161,6 +161,8 @@ proc xfs_create_partition uses ebx esi edi
and eax, XFS_SB_VERSION_NUMBITS
mov [edi+XFS.version], eax
mov [edi+XFS.conv_time_to_kos_epoch], xfs._.conv_time_to_kos_epoch
movbe eax, [ebx+xfs_sb.sb_features2]
mov [edi+XFS.features2], eax
cmp [edi+XFS.version], 5
@@ -198,6 +200,10 @@ proc xfs_create_partition uses ebx esi edi
mov [edi+XFS.dir_block_size], sizeof.xfs_dir3_data_hdr
mov [edi+XFS.bmbt_block_size], sizeof.xfs_bmbt3_block
mov [edi+XFS.da_blkinfo_size], sizeof.xfs_da3_blkinfo
test [edi+XFS.features_incompat], XFS_SB_FEAT_INCOMPAT_BIGTIME
jz @f ; no bigtime
mov [edi+XFS.conv_time_to_kos_epoch], xfs._.conv_bigtime_to_kos_epoch
@@:
.vcommon:
movzx eax, [ebx+xfs_sb.sb_inodesize]
@@ -1373,14 +1379,45 @@ proc xfs._.get_inode_number_sf
ret
endp
proc xfs._.conv_time_to_kos_epoch
movbe eax, [ecx+DQ.hi_be]
call fsTime2bdfe
ret
endp
proc xfs_get_inode_info uses ebx, _src, _dst
proc xfs._.conv_bigtime_to_kos_epoch
NANOSEC_PER_SEC = 1_000_000_000
BIGTIME_TO_UNIX_OFFSET = 0x80000000 ; int32 min
UNIXTIME_TO_KOS_OFFSET = (365*31+8)*24*60*60 ; 01.01.1970--01.01.2001
BIGTIME_TO_KOS_OFFSET = BIGTIME_TO_UNIX_OFFSET + UNIXTIME_TO_KOS_OFFSET
BIGTIME_TO_KOS_OFFSET_NS = BIGTIME_TO_KOS_OFFSET * NANOSEC_PER_SEC
movbe edx, [ecx+DQ.hi_be]
movbe eax, [ecx+DQ.lo_be]
sub eax, BIGTIME_TO_KOS_OFFSET_NS AND 0xffffffff
sbb edx, BIGTIME_TO_KOS_OFFSET_NS SHR 32
jnc .after_kos_epoch_begin
xor eax, eax ; set to very begin of kolibrios epoch
xor edx, edx
jmp .time_to_bdfe
.after_kos_epoch_begin:
cmp edx, NANOSEC_PER_SEC
jb .time_to_bdfe
mov edx, NANOSEC_PER_SEC - 1
mov eax, -1 ; very end of kolibrios epoch
.time_to_bdfe:
mov ecx, NANOSEC_PER_SEC
div ecx
call fsTime2bdfe
ret
endp
proc xfs_get_inode_info uses ebx esi edi, _src, _dst
; get access time and other file properties
; useful for browsing directories
; called for each dir entry
xor eax, eax
mov edx, [_src]
movzx ecx, [edx+xfs_inode.di_core.di_mode]
mov esi, [_src]
movzx ecx, [esi+xfs_inode.di_core.di_mode]
xchg cl, ch
test ecx, S_IFDIR
jz @f
@@ -1388,29 +1425,18 @@ proc xfs_get_inode_info uses ebx, _src, _dst
@@:
mov edi, [_dst]
mov [edi+bdfe.attr], eax
movbe eax, [edx+xfs_inode.di_core.di_size.lo]
mov [edi+bdfe.size.hi], eax
movbe eax, [edx+xfs_inode.di_core.di_size.hi]
movbe edx, [esi+xfs_inode.di_core.di_size.hi_be]
movbe eax, [esi+xfs_inode.di_core.di_size.lo_be]
mov [edi+bdfe.size.hi], edx
mov [edi+bdfe.size.lo], eax
add edi, 8
movbe eax, [edx+xfs_inode.di_core.di_ctime.t_sec]
push edx
sub eax, 978307200 ; 01.01.1970-01.01.2001 = (365*31+8)*24*60*60
call fsTime2bdfe
pop edx
movbe eax, [edx+xfs_inode.di_core.di_atime.t_sec]
push edx
sub eax, 978307200 ; 01.01.1970-01.01.2001 = (365*31+8)*24*60*60
call fsTime2bdfe
pop edx
movbe eax, [edx+xfs_inode.di_core.di_mtime.t_sec]
push edx
sub eax, 978307200 ; 01.01.1970-01.01.2001 = (365*31+8)*24*60*60
call fsTime2bdfe
pop edx
add edi, bdfe.ctime
lea ecx, [esi+xfs_inode.di_core.di_ctime]
call [ebp+XFS.conv_time_to_kos_epoch]
lea ecx, [esi+xfs_inode.di_core.di_atime]
call [ebp+XFS.conv_time_to_kos_epoch]
lea ecx, [esi+xfs_inode.di_core.di_mtime]
call [ebp+XFS.conv_time_to_kos_epoch]
movi eax, ERROR_SUCCESS
cmp esp, esp