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freebsd-dev/sys/fs
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Alan Cox 5a32489377 Make vm_page's PG_ZERO flag immutable between the time of the page's 
allocation and deallocation.  This flag's principal use is shortly after
allocation.  For such cases, clearing the flag is pointless.  The only
unusual use of PG_ZERO is in vfs_bio_clrbuf().  However, allocbuf() never
requests a prezeroed page.  So, vfs_bio_clrbuf() never sees a prezeroed
page.

Reviewed by:	tegge@
2004-05-06 05:03:23 +00:00
..
cd9660 Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
coda Device megapatch 5/6: 2004-02-21 21:32:15 +00:00
deadfs Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
devfs Report the correct length for symlink entries. 2004-02-19 19:09:52 +00:00
fdescfs Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
fifofs Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
hpfs Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
msdosfs Don't reject FAT file systems with a number of "Heads" greater than 2004-03-14 23:28:12 +00:00
ntfs Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
nullfs Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
nwfs Make vm_page's PG_ZERO flag immutable between the time of the page's 2004-05-06 05:03:23 +00:00
portalfs Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
procfs Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
pseudofs When taking event callbacks (like process_exit) out from under Giant, those 2004-03-14 15:57:45 +00:00
smbfs Make vm_page's PG_ZERO flag immutable between the time of the page's 2004-05-06 05:03:23 +00:00
specfs Make vm_page's PG_ZERO flag immutable between the time of the page's 2004-05-06 05:03:23 +00:00
udf Catch all cases where bread() returns an error and a valid *bp, and release 2004-03-30 05:01:48 +00:00
umapfs Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00
unionfs Remove advertising clause from University of California Regent's 2004-04-07 20:46:16 +00:00