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4c837f0d93
Gunnar Beutner did all the hard work on this one by correctly identifying that this issue is a race between dmu_sync() and dbuf_dirty(). Now in all cases the caller is responsible for preventing this race by making sure the zfs_range_lock() is held when dirtying a buffer which may be referenced in a log record. The mmap case which relies on zfs_putpage() was not taking the range lock. This code was accidentally dropped when the function was rewritten for the Linux VFS. This patch adds the required range locking to zfs_putpage(). It also adds the missing ZFS_ENTER()/ZFS_EXIT() macros which aren't strictly required due to the VFS holding a reference. However, this makes the code more consistent with the upsteam code and there's no harm in being extra careful here. Original-patch-by: Gunnar Beutner <gunnar@beutner.name> Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov> Closes #541 |
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| PKGBUILD-zfs-modules.in | ||
| PKGBUILD-zfs.in | ||
| README.markdown | ||
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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