[PATCH] Documentation: virt: clean up paravirt_ops doc.

[Randy Dunlap <rdunlap@infradead.org>]

Clarify language. Clean up grammar. Hyphenate some words.

Change "low-ops" to "low-level" since "low-ops" isn't defined or even
mentioned anywhere else in the kernel source tree.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Juergen Gross <jgross@suse.com>
Cc: Ajay Kaher <akaher@vmware.com>
Cc: Alexey Makhalov <amakhalov@vmware.com>
Cc: VMware PV-Drivers Reviewers <pv-drivers@vmware.com>
Cc: virtualization@lists.linux-foundation.org
Cc: x86@kernel.org
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Luke Nowakowski-Krijger" <lnowakow@eng.ucsd.edu>
Cc: Luis Chamberlain <mcgrof@kernel.org>
---
 Documentation/virt/paravirt_ops.rst |   16 ++++++++--------
 1 file changed, 8 insertions(+), 8 deletions(-)

diff -- a/Documentation/virt/paravirt_ops.rst b/Documentation/virt/paravirt_ops.rst
--- a/Documentation/virt/paravirt_ops.rst
+++ b/Documentation/virt/paravirt_ops.rst
@@ -5,31 +5,31 @@ Paravirt_ops
 ============
 
 Linux provides support for different hypervisor virtualization technologies.
-Historically different binary kernels would be required in order to support
-different hypervisors, this restriction was removed with pv_ops.
+Historically, different binary kernels would be required in order to support
+different hypervisors; this restriction was removed with pv_ops.
 Linux pv_ops is a virtualization API which enables support for different
 hypervisors. It allows each hypervisor to override critical operations and
 allows a single kernel binary to run on all supported execution environments
 including native machine -- without any hypervisors.
 
 pv_ops provides a set of function pointers which represent operations
-corresponding to low level critical instructions and high level
-functionalities in various areas. pv-ops allows for optimizations at run
-time by enabling binary patching of the low-ops critical operations
+corresponding to low-level critical instructions and high-level
+functionalities in various areas. pv_ops allows for optimizations at run
+time by enabling binary patching of the low-level critical operations
 at boot time.
 
 pv_ops operations are classified into three categories:
 
 - simple indirect call
-   These operations correspond to high level functionality where it is
+   These operations correspond to high-level functionality where it is
    known that the overhead of indirect call isn't very important.
 
 - indirect call which allows optimization with binary patch
-   Usually these operations correspond to low level critical instructions. They
+   Usually these operations correspond to low-level critical instructions. They
    are called frequently and are performance critical. The overhead is
    very important.
 
 - a set of macros for hand written assembly code
    Hand written assembly codes (.S files) also need paravirtualization
-   because they include sensitive instructions or some of code paths in
+   because they include sensitive instructions or some code paths in
    them are very performance critical.