CVS commit: src/usr.bin/cmp

[David Laight <dsl%netbsd.org@localhost>]

Module Name:    src
Committed By:   dsl
Date:           Sun Feb  6 21:19:47 UTC 2005

Modified Files:
        src/usr.bin/cmp: regular.c

Log Message:
mmap normal files in 1MB chunks.
Due to a bug in mmap() the address space isn't counted against ulimit
until the page is faulted in - so mmapping a large file suceeds, but
cmp SIGSEGVs when it runs out of address space.
Also I don't believe that the madvise( MAP_SEQUENTIAL) has the desired
effect, and mmaping a large file is probably very bad for the UBC.


To generate a diff of this commit:
cvs rdiff -r1.13 -r1.14 src/usr.bin/cmp/regular.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.