John Baldwin 91d5354a2c Locking for the per-process resource limits structure. ... - struct plimit includes a mutex to protect a reference count. The plimit structure is treated similarly to struct ucred in that is is always copy on write, so having a reference to a structure is sufficient to read from it without needing a further lock. - The proc lock protects the p_limit pointer and must be held while reading limits from a process to keep the limit structure from changing out from under you while reading from it. - Various global limits that are ints are not protected by a lock since int writes are atomic on all the archs we support and thus a lock wouldn't buy us anything. - All accesses to individual resource limits from a process are abstracted behind a simple lim_rlimit(), lim_max(), and lim_cur() API that return either an rlimit, or the current or max individual limit of the specified resource from a process. - dosetrlimit() was renamed to kern_setrlimit() to match existing style of other similar syscall helper functions. - The alpha OSF/1 compat layer no longer calls getrlimit() and setrlimit() (it didn't used the stackgap when it should have) but uses lim_rlimit() and kern_setrlimit() instead. - The svr4 compat no longer uses the stackgap for resource limits calls, but uses lim_rlimit() and kern_setrlimit() instead. - The ibcs2 compat no longer uses the stackgap for resource limits. It also no longer uses the stackgap for accessing sysctl's for the ibcs2_sysconf() syscall but uses kernel_sysctl() instead. As a result, ibcs2_sysconf() no longer needs Giant. - The p_rlimit macro no longer exists. Submitted by: mtm (mostly, I only did a few cleanups and catchups) Tested on: i386 Compiled on: alpha, amd64		2004-02-04 21:52:57 +00:00
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bootp_subr.c	University of Michigan's Citi NFSv4 kernel client code.	2003-11-14 20:54:10 +00:00
krpc_subr.c	unbreak LINT.	2003-11-15 00:26:42 +00:00
krpc.h
nfs_bio.c	Locking for the per-process resource limits structure.	2004-02-04 21:52:57 +00:00
nfs_diskless.c	University of Michigan's Citi NFSv4 kernel client code.	2003-11-14 20:54:10 +00:00
nfs_lock.c	University of Michigan's Citi NFSv4 kernel client code.	2003-11-14 20:54:10 +00:00
nfs_lock.h	Remove a case of exposing 'struct ucred' to userspace. Use a struct xucred	2002-08-15 21:52:22 +00:00
nfs_nfsiod.c	University of Michigan's Citi NFSv4 kernel client code.	2003-11-14 20:54:10 +00:00
nfs_node.c	University of Michigan's Citi NFSv4 kernel client code.	2003-11-14 20:54:10 +00:00
nfs_socket.c	University of Michigan's Citi NFSv4 kernel client code.	2003-11-14 20:54:10 +00:00
nfs_subs.c	Use function pointers to remove the depenancy cross dependancy on nfs4	2003-11-22 02:21:49 +00:00
nfs_vfsops.c	Bump the NFCv3/TCP defaults for rsize and wsize from 8K to 32K to match	2004-01-31 10:40:15 +00:00
nfs_vnops.c	University of Michigan's Citi NFSv4 kernel client code.	2003-11-14 20:54:10 +00:00
nfs.h	Use function pointers to remove the depenancy cross dependancy on nfs4	2003-11-22 02:21:49 +00:00
nfsargs.h	University of Michigan's Citi NFSv4 kernel client code.	2003-11-14 20:54:10 +00:00
nfsdiskless.h	Remove the magic way of configuring NFS backed swap.	2003-08-15 12:04:02 +00:00
nfsm_subs.h	University of Michigan's Citi NFSv4 kernel client code.	2003-11-14 20:54:10 +00:00
nfsmount.h	Use function pointers to remove the depenancy cross dependancy on nfs4	2003-11-22 02:21:49 +00:00
nfsnode.h	Use function pointers to remove the depenancy cross dependancy on nfs4	2003-11-22 02:21:49 +00:00
nfsstats.h
nlminfo.h