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Improve the description of proc in file-ops

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Currently, the description of the proc_ops in the file operation section
will confuse the reader with registering the device. Add more hints to
avoid it.
This commit is contained in:
linD026 2022-09-08 08:24:47 +08:00
parent 637e707a1a
commit 9db8c92cf5
1 changed files with 2 additions and 1 deletions
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lkmpg.tex
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@ -954,7 +954,8 @@ An instance of \cpp|struct file_operations| containing pointers to functions tha
Since Linux v3.14, the read, write and seek operations are guaranteed for thread-safe by using the \cpp|f_pos| specific lock, which makes the file position update to become the mutual exclusion. Since Linux v3.14, the read, write and seek operations are guaranteed for thread-safe by using the \cpp|f_pos| specific lock, which makes the file position update to become the mutual exclusion.
So, we can safely implement those operations without unnecessary locking. So, we can safely implement those operations without unnecessary locking.
Since Linux v5.6, the \cpp|proc_ops| structure was introduced to replace the use of the \cpp|file_operations| structure when registering proc handlers. Additionally, since Linux v5.6, the \cpp|proc_ops| structure was introduced to replace the use of the \cpp|file_operations| structure when registering proc handlers.
See more information in the \ref{sec:proc_ops} section.
\subsection{The file structure} \subsection{The file structure}
\label{sec:file_struct} \label{sec:file_struct}