WarlockFish/linux-insides-zh
1
0
Fork 0
mirror of https://github.com/MintCN/linux-insides-zh.git synced 2026-04-25 19:20:28 +08:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #118 from douliyang/patch-1

Browse Source 
Update interrupts-8.md
This commit is contained in:
xinqiu
2017-01-11 07:51:08 +08:00
committed by GitHub
parent 49b6a0399f 63f4fc33ba
commit eb61a2b05c
1 changed files with 1 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
Interrupts/interrupts-8.md
View File

@@ -241,7 +241,7 @@ do { \
} while (0)
```
As we can see, first of all it expands to the call of the `alloc_system_vector` function that checks the given vector number in the `user_vectors` bitmap (read previous [part](http://0xax.gitbooks.io/linux-insides/content/Interrupts/interrupts-7.html) about it) and if it is not set in the `user_vectors` bitmap we set it. After this we test that the `first_system_vector` is greater than given interrupt vector number and if it is greater we assign it:
As we can see, first of all it expands to the call of the `alloc_system_vector` function that checks the given vector number in the `used_vectors` bitmap (read previous [part](http://0xax.gitbooks.io/linux-insides/content/Interrupts/interrupts-7.html) about it) and if it is not set in the `used_vectors` bitmap we set it. After this we test that the `first_system_vector` is greater than given interrupt vector number and if it is greater we assign it:
```C
if (!test_bit(vector, used_vectors)) {