On Mon, 2012-06-11 at 21:09 +0200, Oleg Nesterov wrote: > Stupid question. I'm afraid the answer is "no" but I'll ask anyway. > Is it safe to pass filp == NULL to mapping->readpage()? In fact > I do not understand why it needs "struct file*" and I do not see > any example of actual usage.
Looking at afs_readpage it looks like its OK to pass in NULL. Same for nfs_readpage. They use the file, if provided, to avoid some lookups, but seem to deal with not having it. This answer by example is of course not authorative nor complete. _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
