mm: workingset: update description of the source file

The calculation of workingset size is the core logic of handling refault,
it had been updated several times[1][2] after workingset.c was created[3].
But the description hadn't been updated accordingly, this mismatch may
confuse the readers.  So we update the description to make it consistent
to the code.

[1] commit 34e58cac6d8f ("mm: workingset: let cache workingset challenge anon")
[2] commit aae466b0052e ("mm/swap: implement workingset detection for anonymous LRU")
[3] commit a528910e12ec ("mm: thrash detection-based file cache sizing")

Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Yang Yang <[email protected]>
Cc: Johannes Weiner <[email protected]>
Cc: Joonsoo Kim <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>

0 files changed, 0 insertions, 0 deletions