| author | asas1asas200 <asas1asas200@gmail.com> | |
| Fri, 6 Aug 2021 10:08:05 +0000 (18:08 +0800) | ||
| committer | GitHub <noreply@github.com> | |
| Fri, 6 Aug 2021 10:08:05 +0000 (18:08 +0800) | ||
| commit | 92b646ed64b8f08347f36b1e393431d94e204667 | |
| tree | 7d719088a47c330f2cc73a7d3356a648bd471044 | tree | snapshot |
| parent | a411938b73947026f9747634ab6fa9025a061b6d | commit | diff |
proc_ops: Be aware of kernel API changes (#13)
The proc_ops structure is defined in <include/linux/proc_fs.h> since
Linux v5.6+.
In older kernels, file_operations structure is used for custom hooks in
/proc file system. However, it contains some members that are unnecessary
in VFS, and every time VFS expands file_operations set, /proc code comes
bloated.
On the other hand, not only the space, but also some operations were
saved by this structure to improve its performance.
The proc_ops structure is defined in <include/linux/proc_fs.h> since
Linux v5.6+.
In older kernels, file_operations structure is used for custom hooks in
/proc file system. However, it contains some members that are unnecessary
in VFS, and every time VFS expands file_operations set, /proc code comes
bloated.
On the other hand, not only the space, but also some operations were
saved by this structure to improve its performance.
| lkmpg.tex | diff | blob | blame | history |