d3aa3ea96e
When updating a file via mmap()'ed I/O preserve the mtime/ctime which were updated when the page was made writable by the generic callback filemap_page_mkwrite(). But more importantly than preserving the exact time add the missing call to sa_bulk_update(). This ensures that the znode modifications are written to disk as part of the transaction. Without this the inode may mistaken rollback to the previous on-disk znode state. Additionally, for mmap()'ed znodes explicitly set the atime, mtime, and ctime on close using the up to date values in the inode. This is critical because writepage() may occur after close and on close we need to ensure the values are correct. Original-patch-by: Richard Yao <ryao@cs.stonybrook.edu> Signed-off-by: Richard Yao <ryao@cs.stonybrook.edu> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #764
Native ZFS for Linux! ZFS is an advanced file system and volume manager which was originally developed for Solaris. It has been successfully ported to FreeBSD and now there is a functional Linux ZFS kernel port too. The port currently includes a fully functional and stable SPA, DMU, and ZVOL with a ZFS Posix Layer (ZPL) on the way!
$ ./configure
$ make pkg
To copy the kernel code inside your kernel source tree for builtin compilation:
$ ./configure --enable-linux-builtin --with-linux=/usr/src/linux-...
$ ./copy-builtin /usr/src/linux-...
Full documentation for building, configuring, and using ZFS can be found at: http://zfsonlinux.org