how ext2/3/4 communicates with disk/flash device to write data and read.

vinayak099 · 01-28-2014, 06:08 AM

Hi,

I am trying to understand ext2/3/4 code. But I am confused how the data is read/written to disk. Not able to understand which call it is making to read/write to the disk.

Can anyone please explain/guide me the same (where the files or present etc)

I am not able to understand what operations it is doing.

unSpawn · 01-28-2014, 12:45 PM

I think you would benefit quite a bit from reading "Understanding The Linux Kernel" (version 3 or up?) as it explains everything from gory block level details up to optimized, combined read / write ops by the kernels VFS layer.