REQ_HARDBARRIER and REQ_SOFTBARRIER

Hi, I'm trying to modify the ordering of I/O requests in Linux kernel, and came across the barrier flags REQ_HARDBARRIER and REQ_SOFTBARRIER. One thing I noticed (which might be wrong) is that all the requests have both these flags set. What is the significance of these flags? Is it a must for

REQ_HARDBARRIER and REQ_SOFTBARRIER

Hi, I'm trying to modify the ordering of I/O requests in Linux kernel, and came across the barrier flags REQ_HARDBARRIER and REQ_SOFTBARRIER. One thing I noticed (which might be wrong) is that all the requests have both these flags set. What is the significance of these flags? Is it a must for

Re: I/O error propagation

to the filesystem from the driver and let the file system handle them as it thinks appropriate ? thanks, On Thu, 3 Mar 2005 15:20:55 -0500 (EST), linux-os <[EMAIL PROTECTED]> wrote: > On Thu, 3 Mar 2005, V P wrote: > > > Hi, > > > > I have a question on how disk errors get prop

I/O error propagation

Hi, I have a question on how disk errors get propagated to the file systems. >From looking at the SCSI/IDE drivers, it looks like there could be many reasons for an I/O to fail. It could be bus timeout, media errors, and so on. Does all these errors get reported to the file system ? It looks

I/O error propagation

Hi, I have a question on how disk errors get propagated to the file systems. From looking at the SCSI/IDE drivers, it looks like there could be many reasons for an I/O to fail. It could be bus timeout, media errors, and so on. Does all these errors get reported to the file system ? It looks

Re: I/O error propagation

to the filesystem from the driver and let the file system handle them as it thinks appropriate ? thanks, On Thu, 3 Mar 2005 15:20:55 -0500 (EST), linux-os [EMAIL PROTECTED] wrote: On Thu, 3 Mar 2005, V P wrote: Hi, I have a question on how disk errors get propagated to the file systems. From