Re: [PATCH 27/28] ext4: xattr inode deduplication

2017-05-31 Thread Darrick J. Wong
On Wed, May 31, 2017 at 01:15:16AM -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

Re: [PATCH 27/28] ext4: xattr inode deduplication

2017-05-31 Thread kbuild test robot
Hi Tahsin, [auto build test ERROR on ext4/dev] [also build test ERROR on next-20170531] [cannot apply to v4.12-rc3] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Tahsin-Erdogan/ext4-xattr-in-in

Re: [PATCH 27/28] ext4: xattr inode deduplication

2017-05-31 Thread kbuild test robot
Hi Tahsin, [auto build test ERROR on ext4/dev] [also build test ERROR on next-20170531] [cannot apply to v4.12-rc3] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Tahsin-Erdogan/ext4-xattr-in-in

[PATCH 27/28] ext4: xattr inode deduplication

2017-05-31 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