i just noticed that, while those are two separate macros, they are
currently equivalent, not to mention:

$ grep -rw PAGE_SIZE * | grep PAGE_CACHE_SIZE
fs/ntfs/compress.c:              * PAGE_CACHE_SIZE != PAGE_SIZE but for now 
there is no problem.
fs/ntfs/compress.c:                              * when we get PAGE_CACHE_SIZE 
!= PAGE_SIZE but
include/linux/pagemap.h:#define PAGE_CACHE_SIZE         PAGE_SIZE
include/linux/pagemap.h: * not true if PAGE_CACHE_SIZE > PAGE_SIZE.
mm/shmem.c:              * Will need changing if PAGE_CACHE_SIZE != PAGE_SIZE

  ok, so if they were different, that would be an issue, but what are
the chances of that ever happening?  just curious.

rday

-- 
========================================================================
Robert P. J. Day
Linux Consulting, Training and Annoying Kernel Pedantry
Waterloo, Ontario, CANADA

http://fsdev.net/wiki/index.php?title=Main_Page
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