On Fri, Feb 03, 2006 at 10:50:38AM -0800, Krnl Newbee wrote: > Hi > > I have a question regarding seq_operations. Say, I > have a big linked list or some data structure that I > want to show with /proc interface. Since I don't want > the list to be modified while I walk, I take a > semaphore and start showing the list with, seq_open, > seq_next, seq_show calls. Say I'm showing this linked > list when user calls 'ls' on /proc/showlinkedlist. > What if a user presses Ctrl-S and pauses the output of Please read the Linux Device Drivers book, online if necessary. When you are called you will be given a buffer to write your data into. No-one will interrupt you then. When you're done you return. The caller will take care of returning the data the user is actually interested and dealing with blocking semantics... -- Martijn van Oosterhout <kleptog@xxxxxxxxx> http://svana.org/kleptog/ > Patent. n. Genius is 5% inspiration and 95% perspiration. A patent is a > tool for doing 5% of the work and then sitting around waiting for someone > else to do the other 95% so you can sue them.
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