* A doubt regarding submit_bio() @ 2010-12-27 19:25 Gaurav Mahajan 2010-12-29 7:20 ` Durga Prasad 0 siblings, 1 reply; 2+ messages in thread From: Gaurav Mahajan @ 2010-12-27 19:25 UTC (permalink / raw) To: kernelnewbies Hello all, I am working on a operation in which I need to assure the order of bio_end_io() functions. Consider the scenario, If I submit two bio requests using submit_bio() function one after another, then is there any guarantee that the bio_end_io() for the bios will be invoked in the same order in which I submitted the bios? Basically I mean to say, would the generic block layer or I/O scheduler maintain the order of bios submitted to them? Hoping for some help. Regards, Gaurav. ^ permalink raw reply [flat|nested] 2+ messages in thread
* A doubt regarding submit_bio() 2010-12-27 19:25 A doubt regarding submit_bio() Gaurav Mahajan @ 2010-12-29 7:20 ` Durga Prasad 0 siblings, 0 replies; 2+ messages in thread From: Durga Prasad @ 2010-12-29 7:20 UTC (permalink / raw) To: kernelnewbies This works asynchronously. So you should __not__ expect the same ordering in execution of bio->bi_endio () ________________________________ From: Gaurav Mahajan <gauravmahajan2007@gmail.com> To: kernelnewbies <kernelnewbies@nl.linux.org> Sent: Tue, December 28, 2010 12:55:12 AM Subject: A doubt regarding submit_bio() Hello all, I am working on a operation in which I need to assure the order of bio_end_io() functions. Consider the scenario, If I submit two bio requests using submit_bio() function one after another, then is there any guarantee that the bio_end_io() for the bios will be invoked in the same order in which I submitted the bios? Basically I mean to say, would the generic block layer or I/O scheduler maintain the order of bios submitted to them? Hoping for some help. Regards, Gaurav. _______________________________________________ Kernelnewbies mailing list Kernelnewbies at kernelnewbies.org http://lists.kernelnewbies.org/mailman/listinfo/kernelnewbies -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.kernelnewbies.org/pipermail/kernelnewbies/attachments/20101228/c57c3dca/attachment.html ^ permalink raw reply [flat|nested] 2+ messages in thread
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