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
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cd9660	Remove advertising clause from University of California Regent's	2004-04-07 20:46:16 +00:00
coda
deadfs	Remove advertising clause from University of California Regent's	2004-04-07 20:46:16 +00:00
devfs
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