This is version 2 of the xattr inode operation removal patch series. The patches are available in git form at: https://git.kernel.org/cgit/linux/kernel/git/agruen/linux.git/log/?h=work.xattr The purpose of this series is to remove unnecessary differences between the xattr implementations on different filesystems and to simplify things. With the exception of redirectors like fuse, overlayfs, and ecryptfs, all filesystems perform some de-multiplexing based on the xattr name, so it makes sense to make that the default; filesystems that don't do any de-multiplexing can easily use a catch-all xattr handler. The patch series is structured as follows: * The initial patches convert the remaining filesystems over to use xattr handlers for implementing their de-multiplexing. * Next, a new IOP_XATTR inode operations flag is introduced: the flag is set when an inode supports xattrs. On most filesystems, the IOP_XATTR flag is automatically initialized correctly when the inode is allocated based on whether or not the s_xattr field in the inode's superblock is defined. Filesystems that support xattrs on some but not all inodes can clear the IOP_XATTR flag appropriately. * The IOP_XATTR flag is then used to get rid of the two remaining places where xattr inode operations other than the generic ones are used: bad inodes and libfs empty directories. * After that, we get rid of the remaining direct accesses to xattr inode operations. * Finally, we stop calling the xattr inode operations and remove them. Note that these patches only remove the getxattr, setxattr, and removexattr inode operations. The listxattr inode operation does not do any attribute name de-multiplexing, and remains unchanged except for checking the new IOP_XATTR flag as well now. Note that this patch series still breaks Lustre. I'm hoping that the Lustre developers will come up with a patch to switch lustre over to use xattr handlers. Thanks, Andreas Andreas Gruenbacher (18): xattr: Remove unnecessary NULL attribute name check jffs2: Remove jffs2_{get,set,remove}xattr macros hfs: Switch to generic xattr handlers kernfs: Switch to generic xattr handlers sockfs: getxattr: Fail with -EOPNOTSUPP for invalid attribute names sockfs: Get rid of getxattr iop ecryptfs: Switch to generic xattr handlers overlayfs: Switch to generic xattr handlers fuse: Switch to generic xattr handlers evm: Turn evm_update_evmxattr into void function vfs: Move xattr_resolve_name to the front of fs/xattr.c vfs: Add IOP_XATTR inode operations flag vfs: Use IOP_XATTR flag for bad-inode handling libfs: Use IOP_XATTR flag for empty directory handling xattr: Add __vfs_{get,set,remove}xattr helpers vfs: Check for the IOP_XATTR flag in listxattr xattr: Stop calling {get,set,remove}xattr inode operations vfs: Remove {get,set,remove}xattr inode operations Documentation/filesystems/Locking | 24 +++- Documentation/filesystems/vfs.txt | 45 ++++--- arch/ia64/kernel/perfmon.c | 4 +- drivers/gpu/drm/drm_drv.c | 1 + fs/9p/vfs_inode_dotl.c | 9 -- fs/aio.c | 2 +- fs/anon_inodes.c | 2 +- fs/bad_inode.c | 21 +-- fs/block_dev.c | 2 +- fs/btrfs/inode.c | 12 -- fs/btrfs/tests/btrfs-tests.c | 2 +- fs/cachefiles/bind.c | 4 +- fs/cachefiles/namei.c | 4 +- fs/ceph/dir.c | 3 - fs/ceph/inode.c | 6 - fs/cifs/cifsfs.c | 9 -- fs/ecryptfs/ecryptfs_kernel.h | 2 + fs/ecryptfs/inode.c | 57 +++++--- fs/ecryptfs/main.c | 1 + fs/ecryptfs/mmap.c | 11 +- fs/ext2/file.c | 3 - fs/ext2/namei.c | 6 - fs/ext2/symlink.c | 6 - fs/ext4/file.c | 3 - fs/ext4/namei.c | 6 - fs/ext4/symlink.c | 9 -- fs/f2fs/file.c | 3 - fs/f2fs/namei.c | 12 -- fs/fuse/dir.c | 40 ++++-- fs/fuse/fuse_i.h | 2 + fs/fuse/inode.c | 1 + fs/gfs2/inode.c | 9 -- fs/hfs/attr.c | 82 ++++++++---- fs/hfs/hfs_fs.h | 6 +- fs/hfs/inode.c | 5 +- fs/hfs/super.c | 1 + fs/hfsplus/dir.c | 3 - fs/hfsplus/inode.c | 3 - fs/inode.c | 2 + fs/jffs2/dir.c | 3 - fs/jffs2/file.c | 3 - fs/jffs2/symlink.c | 3 - fs/jffs2/xattr.h | 6 - fs/jfs/file.c | 3 - fs/jfs/namei.c | 3 - fs/jfs/symlink.c | 6 - fs/kernfs/dir.c | 3 - fs/kernfs/inode.c | 153 +++++++++++---------- fs/kernfs/kernfs-internal.h | 6 +- fs/kernfs/mount.c | 1 + fs/kernfs/symlink.c | 3 - fs/libfs.c | 24 +--- fs/nfs/nfs3proc.c | 6 - fs/nfs/nfs4proc.c | 6 - fs/nsfs.c | 2 +- fs/ocfs2/file.c | 3 - fs/ocfs2/namei.c | 3 - fs/ocfs2/symlink.c | 3 - fs/orangefs/inode.c | 3 - fs/orangefs/namei.c | 3 - fs/orangefs/symlink.c | 1 - fs/overlayfs/copy_up.c | 4 +- fs/overlayfs/dir.c | 3 - fs/overlayfs/inode.c | 46 +++++-- fs/overlayfs/overlayfs.h | 6 +- fs/overlayfs/super.c | 5 +- fs/pipe.c | 2 +- fs/reiserfs/file.c | 3 - fs/reiserfs/namei.c | 9 -- fs/squashfs/inode.c | 1 - fs/squashfs/namei.c | 1 - fs/squashfs/symlink.c | 1 - fs/squashfs/xattr.h | 1 - fs/ubifs/dir.c | 3 - fs/ubifs/file.c | 6 - fs/xattr.c | 245 +++++++++++++++++----------------- fs/xfs/xfs_iops.c | 12 -- include/linux/fs.h | 6 +- include/linux/xattr.h | 6 +- mm/shmem.c | 15 --- net/socket.c | 59 ++++---- security/commoncap.c | 25 ++-- security/integrity/evm/evm.h | 7 +- security/integrity/evm/evm_crypto.c | 20 ++- security/integrity/evm/evm_main.c | 4 +- security/integrity/ima/ima_appraise.c | 21 ++- security/selinux/hooks.c | 19 +-- security/smack/smack_lsm.c | 12 +- 88 files changed, 529 insertions(+), 683 deletions(-) -- 2.5.5 -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
