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The .Fn function

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This commit is contained in:
Philippe Charnier 2003-02-05 14:00:46 +00:00
parent c74076852f
commit 60dca836a7
2 changed files with 14 additions and 9 deletions
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11
share/man/man9/malloc.9
View file

@ -65,8 +65,9 @@ function allocates uninitialized memory in kernel address space for an
object whose size is specified by
.Fa size .
.Pp
The
.Fn free
releases memory at address
function releases memory at address
.Fa addr
that was previously allocated by
.Fn malloc
@ -156,11 +157,12 @@ rather than block.
Note that
.Dv M_NOWAIT
is required when running in an interrupt context.
The
.Fn malloc ,
.Fn realloc ,
and
.Fn reallocf
can only return
functions can only return
.Dv NULL
if
.Dv M_NOWAIT
@ -205,12 +207,13 @@ MALLOC(buf, struct foo_buf *, sizeof *buf, M_FOOBUF, M_NOWAIT);
.Ed
.Sh RETURN VALUES
The
.Fn malloc ,
.Fn realloc ,
and
.Fn reallocf
return a kernel virtual address that is suitably aligned for storage of
any type of object, or
functions return a kernel virtual address that is suitably aligned for
storage of any type of object, or
.Dv NULL
if the request could not be satisfied (implying that
.Dv M_NOWAIT

12
share/man/man9/namei.9
View file

@ -50,8 +50,9 @@
.Ft void
.Fn NDFREE "struct nameidata *ndp" "u_int operflags"
.Sh DESCRIPTION
The
.Fn namei
is used to get from a pathname to a vnode for the object.
function is used to get from a pathname to a vnode for the object.
This is a necessity to start doing VFS operations. The vnode
returned will have its reference count increased; when you're through
with it, you have to release it using either
@ -66,7 +67,7 @@ It takes the following arguments:
.Pp
.Bl -tag -width nameidatap
.It Ar nameidatap
pointer to the struct nameidata to initialize
Pointer to the struct nameidata to initialize.
.It Ar operation
The operation to have
.Fn namei
@ -89,15 +90,16 @@ Segment indicator. This tells if the name of the object is in
userspace (UIO_USERSPACE) or in the kernel address space (UIO_SYSSPACE).
.It Ar path
Pointer to pathname buffer (the file or directory name that will be
looked up)
looked up).
.It Ar td
Which thread context to use for the
.Fn namei
locks.
.El
.Sh NAMEI OPERATION FLAGS
The
.Fn namei
takes the following set of 'operation flags' that influence
function takes the following set of 'operation flags' that influence
how it operates:
.Bl -tag -width WANTPARENT
.It Dv LOCKLEAF
@ -144,7 +146,7 @@ for whatever the link points at, instead for the link itself).
Do not call
.Fn vfs_object_create
for the returned vnode even if it is
just a VREG and we're able to (ie, it is locked).
just a VREG and we're able to (i.e., it is locked).
.It Dv NOFOLLOW
Do not follow symbolic links (pseudo).
This flag is not looked for by the actual code, which looks for