fork of 9front i guess
f05b8af71e
Avoid calling sdgetdev() for every I/O. Instead, put the SDunit pointer for #S/sdXX/* files in Chan.aux and keep a reference to SDev between sdopen()/sdclose(). This avoids having to do the sdindex() lookup and qlock(),incref(),decref() on every read/write operation. Removal of SDev's is quite rare and only can happen with pcmcia ide controllers, and i assume that for that we can assume thet fileservers having been exited properly and closed their files before we attempt to remove a device. The rest is improving waserror() codepaths, making sure we release the locks for any of the interface callbacks (verify/online). Also get rid of tas() and instead only change the unit's rawopen flag while holding raw qlock. |
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| 386 | ||
| 68000 | ||
| 68020 | ||
| acme | ||
| adm/timezone | ||
| amd64 | ||
| arm | ||
| arm64 | ||
| lib | ||
| mips | ||
| power | ||
| power64 | ||
| rc | ||
| sparc | ||
| sparc64 | ||
| spim | ||
| sys | ||