Writing Stackable Filesystems

Wenghezhong

Writing filesystems, or any kernel code, is hard. The kernel is a complex environment to master, and small
0 x4 h  Z$ c* X8 s1 D8 L1 Dmistakes can cause severe data corruption. Filesystems, however, offer a clean data access mechanism that is
+ l7 s. ^3 j- j/ t3 g- W7 Y% _- Z! Btransparent to user applications, which is why developers always desire to add new features to filesystems. In
* E8 m2 l% C% Q1 Ythis article, we provide a quick introduction so you can add new functionality to existing filesystems without
4 t3 U+ b' Q* Khaving to become a kernel or filesystems expert.

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