Re: [PATCH 27/32] ext4: xattr inode deduplication

2017-06-22 Thread Theodore Ts'o
On Wed, Jun 21, 2017 at 06:49:34PM -0700, Tahsin Erdogan wrote: > Ext4 now supports xattr values that are up to 64k in size (vfs limit). > Large xattr values are stored in external inodes each one holding a > single value. Once written the data blocks of these inodes are immutable. > > The real wo

[PATCH 27/32] ext4: xattr inode deduplication

2017-06-21 Thread Tahsin Erdogan
Ext4 now supports xattr values that are up to 64k in size (vfs limit). Large xattr values are stored in external inodes each one holding a single value. Once written the data blocks of these inodes are immutable. The real world use cases are expected to have a lot of value duplication such as inhe

[PATCH 27/32] ext4: xattr inode deduplication

2017-06-21 Thread Tahsin Erdogan
Ext4 now supports xattr values that are up to 64k in size (vfs limit). Large xattr values are stored in external inodes each one holding a single value. Once written the data blocks of these inodes are immutable. The real world use cases are expected to have a lot of value duplication such as inhe