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Brian Behlendorf
5915791096
When replaying an unlink/remove operation via zfs_rmdir() the object being removed will be instantiated by a call to zfs_dirent_lock(). This means that there is a single reference protecting the object. Right before the call to zfs_inode_update() this reference is dropped which may cause the object to be destroyed. This will result in a NULL dereference as shown by the stack trace is issue #782. This likely isn't an issue during normal operation because there is always an additional reference held on the object by the VFS. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #782
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