BLK_LLD_BUSY - Online Linux Manual PageSection : 9
Updated : June 2018
Source : Kernel Hackers Manual 2​.6​.
Note : Block Devices

---

NAMEblk_lld_busy − Check if underlying low−level drivers of a device are busy

---

SYNOPSISint blk_lld_busy(struct request_queue * q);

---

ARGUMENTSq the queue of the device being checked

---

DESCRIPTIONCheck if underlying low−level drivers of a device are busy​. If the drivers want to export their busy state, they must set own exporting function using blk_queue_lld_busy first​. Basically, this function is used only by request stacking drivers to stop dispatching requests to underlying devices when underlying devices are busy​. This behavior helps more I/O merging on the queue of the request stacking driver and prevents I/O throughput regression on burst I/O load​.

---

RETURN0 − Not busy (The request stacking driver should dispatch request) 1 − Busy (The request stacking driver should stop dispatching request)

---

COPYRIGHT
0

---

Johanes Gumabo

---

Data Size   :   3,870 byte
man-blk_lld_busy.9Build   :   2024-12-05, 20:55   :  
Visitor Screen   :   x
Visitor Counter ( page / site )   :   3 / 193,901
Visitor ID   :     :  
Visitor IP   :   3.21.244.34   :  
Visitor Provider   :   AMAZON-02   :  
Provider Position ( lat x lon )   :   39.962500 x -83.006100   :   x
Provider Accuracy Radius ( km )   :   1000   :  
Provider City   :   Columbus   :  
Provider Province   :   Ohio ,   :   ,
Provider Country   :   United States   :  
Provider Continent   :   North America   :  
Visitor Recorder   :   Version   :  
Visitor Recorder   :   Library   :  
Online Linux Manual Page   :   Version   :   Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
Online Linux Manual Page   :   Library   :   lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Online Linux Manual Page   :   Library   :   lib_m - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Data Base   :   Version   :   Online Linux Manual Page Database - 24.04.13 - march=x86-64 - mtune=generic - fedora-38
Data Base   :   Library   :   lib_c - 23.02.07 - march=x86-64 - mtune=generic - fedora.36

---

Very long time ago, I have the best tutor, Wenzel Svojanovsky . If someone knows the email address of Wenzel Svojanovsky , please send an email to johanes_gumabo@yahoo.co.id .

---

If error, please print screen and send to johanes_gumabo@yahoo.co.id
Under development. Support me via PayPal.

---