bcachefs: Don't use sha256 for siphash str hash key

With the refactoring that's coming to add fuse support, we want
bch2_hash_info_init() to be cheaper so we don't have to rely on anything
cached besides the inode in the btree.

Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>
This commit is contained in:
Kent Overstreet 2019-10-04 15:58:43 -04:00 • committed by Kent Overstreet
commit 73501ab82c
4 changed files with 41 additions and 20 deletions