Konstantin Belousov 3407fefef6 Split the vm_page flags PG_WRITEABLE and PG_REFERENCED into atomic ... flags field. Updates to the atomic flags are performed using the atomic ops on the containing word, do not require any vm lock to be held, and are non-blocking. The vm_page_aflag_set(9) and vm_page_aflag_clear(9) functions are provided to modify afalgs. Document the changes to flags field to only require the page lock. Introduce vm_page_reference(9) function to provide a stable KPI and KBI for filesystems like tmpfs and zfs which need to mark a page as referenced. Reviewed by: alc, attilio Tested by: marius, flo (sparc64); andreast (powerpc, powerpc64) Approved by: re (bz)		2011-09-06 10:30:11 +00:00
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cd9660
coda	Second-to-last commit implementing Capsicum capabilities in the FreeBSD	2011-08-11 12:30:23 +00:00
deadfs
devfs	Add the fo_chown and fo_chmod methods to struct fileops and use them	2011-08-16 20:07:47 +00:00
ext2fs
fdescfs	Second-to-last commit implementing Capsicum capabilities in the FreeBSD	2011-08-11 12:30:23 +00:00
fifofs	Add the fo_chown and fo_chmod methods to struct fileops and use them	2011-08-16 20:07:47 +00:00
hpfs
msdosfs
nfs
nfsclient	Second-to-last commit implementing Capsicum capabilities in the FreeBSD	2011-08-11 12:30:23 +00:00
nfsserver	Fix the NFS servers so that they can do a Lookup of "..",	2011-09-03 00:28:53 +00:00
ntfs
nullfs
nwfs
portalfs	Second-to-last commit implementing Capsicum capabilities in the FreeBSD	2011-08-11 12:30:23 +00:00
procfs	Do not return success and a string "unknown" when vn_fullpath() was unable	2011-08-16 20:13:17 +00:00
pseudofs
smbfs
tmpfs	Split the vm_page flags PG_WRITEABLE and PG_REFERENCED into atomic	2011-09-06 10:30:11 +00:00
udf
unionfs