Storage
介紹
1.
存储硬件
1.1.
Nand Flash
1.2.
eMMC
1.3.
UFS
2.
Driver
2.1.
Nand Driver
2.2.
Nand Core Driver
2.3.
eMMC Driver
2.4.
MMC Core Driver
2.5.
UFS Driver
2.6.
SCSI Driver
3.
Filesystem
3.1.
VFS
3.2.
EXT4
3.3.
FAT32
3.4.
FUSE
3.5.
SDCARDFS
4.
Block Driver
5.
IO System Call
6.
Misc
6.1.
async io control
6.2.
some important points of ext4 write flow
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Storage
Async io cotronl
1. Background
async io被mark为dirty后，回由bdi负责写入。