[PATCH 4/4] fs/ext4,jbd2: add support for passing write-hint with journal.

2019-01-09 Thread Kanchan Joshi
For NAND based SSDs, mixing of data with different life-time reduces efficiency of internal garbage-collection. During FS operations, series of journal updates will follow/precede series of data/meta updates, causing intermixing inside SSD. By passing a write-hint with journal, its write can be iso

Re: [PATCH 4/4] fs/ext4,jbd2: add support for passing write-hint with journal.

2019-01-24 Thread Jan Kara
On Wed 09-01-19 21:01:01, Kanchan Joshi wrote: > For NAND based SSDs, mixing of data with different life-time reduces > efficiency of internal garbage-collection. During FS operations, series > of journal updates will follow/precede series of data/meta updates, causing > intermixing inside SSD. By