"Vladimir 'φ-coder/phcoder' Serbinenko" <phcoder@xxxxxxxxx> writes: > Hello, all. In GRUB we have tools to discover various parameters as to > how GRUB would see the disks on boot and for this we run the same code > as we have in boot time in userspace. So most natural for us would be > accessing whole disks like sda but unfortunately its cache isn't kept > synchronous with partitions (e.g. sda1), so if FS driver writes > something to sda1 it won't be visible through sda until pages are > dropped. Right now in Linux-specific code we try to find which partition > of sda starts at given sector (e.g. 2048) by trying all partition Linux > sees in order to read from sda1 rather than sda. The code is ugly and > sometimes create issues. So my questions are: > 1) Do we have to issue some ioctl to reload those caches? You can issue the BLKFLSBUF ioctl. > 2) Is it considered a bug and should I plunge forward, fix it and send a > patch? This is debatable. See this thread: http://thread.gmane.org/gmane.linux.kernel/1241227/focus=1244202 Cheers, Jeff -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
