One of the features of the file system Ext4 i开发者_如何学编程s its new scalability features documented here. I was wondering what changes at the source code level would enable Ext4 to support such fe
I am trying to squeeze the most performance out of a Linux block driver for a high-end storage device.One problem that has me a bit stumped at the moment is this: if a user task starts an I/O operatio
I work for a company which builds embedded systems using Linux. Historically we\'ve always used CVS to store our kernel work. Our kernels end up being a collection of:
I modified the block mapping in an inode and want to flush the page cache associated with the inode so that the new inode with new mapping will be loaded from disk. I tried below functions but it work
In a device driver for some PCI hardware, I have an ioctl call that waits for an incoming interrupt on the PCI bus. Using wait_queue_head开发者_运维问答_t, I put the task to sleep by calling schedule(
I have a kernel 2.6.31 booting from a USB stick using Intel 915 based KMS to get to graphics mode. It appears to be setting itself to the native resolution and its booting nic开发者_JAVA百科ely into f
I had a driver for linux kernel (2.6.18) in which I used kmalloc(sizeof(my_struct_t), GFP_ATOMIC) to allocate memory which was later used for data transfer using DMA controller of some device. Later I
I\'m porting an old version of a software that is partly a linux kernel module toEL5, after doing the relevant hacks, the horrible GNU autotools mess that is used to compile the thing (no, it does not
In Linux v0.11 task_struct had an executable member of type m_inode *. I am开发者_Go百科 looking for something similar.
In his 2005 email to the Linux Kernel mailing list, Linus Torvalds is very emphatic that tags in git should be private and not be automatically included when fetching from others:
加载中,请稍侯......