On 1/23/06, Anton Altaparmakov <aia21@xxxxxxxxx> wrote: ... > Note that the buffers from the block device address space mapping are > COMPLETELY separate from the buffers from a file inode address space > mapping. So writes from one are NOT seen in the other and you NEVER can > mix the two forms of i/o and expect to have a working file system. You > will get random results and tons of weird data corruption that way. > Thanks a lot, this is clear for me several important things. > That depends entirely in which function you are / which call path you are > in at present. Taking minix as an example, tell me the call path where > you end up wanting to do the above and I will tell you where to get the bh > from... (-: > I told about 2.6.15. in fs/minix/bitmap.c there is minix_new_block we come in it from get_block in fs/minix/itree_common.c. After analizing blocks<->file I want move some blocks to another location and update page cache correspondingly, what should I do? -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
