proc_flush_task(9) [centos man page]

PROC_FLUSH_TASK(9)						The proc filesystem						PROC_FLUSH_TASK(9)

NAME

       proc_flush_task - Remove dcache entries for task from the /proc dcache.

SYNOPSIS

       void proc_flush_task(struct task_struct * task);

ARGUMENTS

       task
	   task that should be flushed.

DESCRIPTION

       When flushing dentries from proc, one needs to flush them from global proc (proc_mnt) and from all the namespaces' procs this task was seen
       in. This call is supposed to do all of this job.

       Looks in the dcache for /proc/pid /proc/tgid/task/pid if either directory is present flushes it and all of it'ts children from the dcache.

       It is safe and reasonable to cache /proc entries for a task until that task exits. After that they just clog up the dcache with useless
       entries, possibly causing useful dcache entries to be flushed instead. This routine is proved to flush those useless dcache entries at
       process exit time.

NOTE

       This routine is just an optimization so it does not guarantee that no dcache entries will exist at process exit time it just makes it very
       unlikely that any will persist.

COPYRIGHT

Kernel Hackers Manual 3.10					     June 2014							PROC_FLUSH_TASK(9)

tapset::nfs_proc(3stap) 												   tapset::nfs_proc(3stap)

NAME

       tapset::nfs_proc - systemtap nfs_proc tapset

DESCRIPTION

       nfs.proc.lookup
	      NFS client opens/searches a file on server

	       See probe::nfs.proc.lookup(3stap)
	       for details.

       nfs.proc.read
	      NFS client synchronously reads file from server

	       See probe::nfs.proc.read(3stap)
	       for details.

       nfs.proc.write
	      NFS client synchronously writes file to server

	       See probe::nfs.proc.write(3stap)
	       for details.

       nfs.proc.commit
	      NFS client committing data on server

	       See probe::nfs.proc.commit(3stap)
	       for details.

       nfs.proc.read_setup
	      NFS client setting up a read RPC task

	       See probe::nfs.proc.read_setup(3stap)
	       for details.

       nfs.proc.read_done
	      NFS client response to a read RPC task

	       See probe::nfs.proc.read_done(3stap)
	       for details.

       nfs.proc.write_setup
	      NFS client setting up a write RPC task

	       See probe::nfs.proc.write_setup(3stap)
	       for details.

       nfs.proc.write_done
	      NFS client response to a write RPC task

	       See probe::nfs.proc.write_done(3stap)
	       for details.

       nfs.proc.commit_setup
	      NFS client setting up a commit RPC task

	       See probe::nfs.proc.commit_setup(3stap)
	       for details.

       nfs.proc.commit_done
	      NFS client response to a commit RPC task

	       See probe::nfs.proc.commit_done(3stap)
	       for details.

       nfs.proc.open
	      NFS client allocates file read/write context information

	       See probe::nfs.proc.open(3stap)
	       for details.

       nfs.proc.release
	       NFS client releases file read/write context information

	       See probe::nfs.proc.release(3stap)
	       for details.

       nfs.proc.handle_exception
	      NFS client handling an NFSv4 exception

	       See probe::nfs.proc.handle_exception(3stap)
	       for details.

       nfs.proc.create
	      NFS client creating file on server

	       See probe::nfs.proc.create(3stap)
	       for details.

       nfs.proc.remove
	      NFS client removes a file on server

	       See probe::nfs.proc.remove(3stap)
	       for details.

       nfs.proc.rename
	      NFS client renames a file on server

	       See probe::nfs.proc.rename(3stap)
	       for details.

SEE ALSO

	  probe::nfs.proc.lookup(3stap),      probe::nfs.proc.read(3stap),	probe::nfs.proc.write(3stap),	  probe::nfs.proc.commit(3stap),
       probe::nfs.proc.read_setup(3stap),	       probe::nfs.proc.read_done(3stap),	       probe::nfs.proc.write_setup(3stap),
       probe::nfs.proc.write_done(3stap),  probe::nfs.proc.commit_setup(3stap),  probe::nfs.proc.commit_done(3stap),  probe::nfs.proc.open(3stap),
	probe::nfs.proc.release(3stap),  probe::nfs.proc.handle_exception(3stap),  probe::nfs.proc.create(3stap),  probe::nfs.proc.remove(3stap),
       probe::nfs.proc.rename(3stap),  stap(1), stapprobes(3stap)

IBM
									---						   tapset::nfs_proc(3stap)