diff options
Diffstat (limited to 'documentation/content/en/articles/geom-class/_index.adoc')
| -rw-r--r-- | documentation/content/en/articles/geom-class/_index.adoc | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/documentation/content/en/articles/geom-class/_index.adoc b/documentation/content/en/articles/geom-class/_index.adoc index cf10202e74..7613cb780a 100644 --- a/documentation/content/en/articles/geom-class/_index.adoc +++ b/documentation/content/en/articles/geom-class/_index.adoc @@ -152,7 +152,7 @@ This is controlled with two [.filename]#/etc/rc.conf# variables: [.programlisting] .... dumpdev="/dev/ad0s4b" -dumpdir="/usr/core +dumpdir="/usr/core" .... The `dumpdev` variable specifies the swap partition and `dumpdir` tells the system where in the filesystem to relocate the core dump on reboot. @@ -241,7 +241,7 @@ Structure `bio` is used for any and all Input/Output operations concerning GEOM. It basically contains information about what device ('provider') should satisfy the request, request type, offset, length, pointer to a buffer, and a bunch of "user-specific" flags and fields that can help implement various hacks. The important thing here is that ``bio``s are handled asynchronously. -That means that, in most parts of the code, there is no analogue to userland's man:read[2] and man:write[2] calls that do not return until a request is done. +That means that, in most parts of the code, there is no analogue to userland's man:read[2] and man:write[2] calls that do not return until a request is done. Rather, a developer-supplied function is called as a notification when the request gets completed (or results in error). The asynchronous programming model (also called "event-driven") is somewhat harder than the much more used imperative one used in userland (at least it takes a while to get used to it). |