[Apparently I forgot to cc list] On Tue, Feb 14, 2012 at 10:04 PM, Manish Katiyar <mkatiyar@xxxxxxxxx> wrote: > On Tue, Feb 14, 2012 at 7:43 PM, Ravishankar <cyberax82@xxxxxxxxx> wrote: >> Hello, >> >> When we unmount a file system with the umount command or the umount() system >> call, does the kernel sync the dirty buffers before the file system is >> unmounted?I am assuming that the file system is not 'busy' (i.e no open >> files etc) and no force options are specified. When I did a walk-through of >> do_umount() call in fs/namespace.c, I could not find calls to sync any dirty >> pages that might exist. > > yes, most of the filesystem have their own function to sync fs. Look > for the function pointer "sync_fs" > > For eg..for ext4 > > generic_shutdown_super -> sync_filesystem -> __sync_filesystem -> > sync_fs -> ext4_sync_fs > -- > Thanks - > Manish -- Thanks - Manish _______________________________________________ Kernelnewbies mailing list Kernelnewbies@xxxxxxxxxxxxxxxxx http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies
