[PATCH RFC 0/4] fs: Deferred inode reclaim

[Jan Kara <jack@suse.cz>]

Hello,

here are patches implementing deferred inode reclaim to deal with MM warnings
due to GFP_NOFAIL allocations from reclaim paths. The patches are only very
lightly tested and are meant mainly as a starting point of discussion we are
going to have at LSF/MM/BPF summit (yay for conference driven development).

The first patch dealing with lazy timestamp updates is kind of standalone
as I've decided to handle that in writeback infrastructure instead but it is
also a case where we happen to do GFP_NOFAIL allocations from reclaim path.
There are obviously other filesystems that need similar treatment as ext4
but let's handle that once the infrastructure is settled.

Comments are welcome.

								Honza