Date: Wed, 2 Apr 1997 18:20:42 -0500 (EST) From: "Peter M. Chen" <pmchen@eecs.umich.edu> To: freebsd-hackers@freebsd.org Subject: VOP_PUTPAGES Message-ID: <199704022320.SAA19709@life.eecs.umich.edu>
next in thread | raw e-mail | index | archive | help
I feel stupid for asking this, but what does VOP_PUTPAGES call? I tried
tracing through the maze of macros but ended up at vp->v_op[0], which I
think is an error function.
VOP_PUTPAGES (kern/vnode_if.h) calls
VCALL(vp, VOFFSET(vop_putpages), &a)
which becomes
VOCALL(vp->v_op, VOFFSET(vop_putpages),&a)
which becomes
( *(vp->v_op[VOFFSET(vop_putpages)])) (&a)
which becomes
( *(vp->v_op[((&vop_putpages_desc)->vdesc_offset) ])) (&a)
which becomes
( *(vp->v_op[0])) (&a)
I'm interested in the paging out behavior of files. E.g. a file block that
has been mmap'ed and dirtied needs to be written back to its file.
Thanks,
Pete
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199704022320.SAA19709>