[uClinux-dev] [PATCH 2/4] NOMMU: Avoiding duplicate icache flushes of shared maps

2009-12-22 Thread David Howells
From: Mike Frysinger When working with FDPIC, there are many shared mappings of read-only code regions between applications (the C library, applet packages like busybox, etc.), but the current do_mmap_pgoff() function will issue an icache flush whenever a VMA is added to an MM instead of only doi

[uClinux-dev] [PATCH 2/4] NOMMU: Avoiding duplicate icache flushes of shared maps

2010-01-06 Thread David Howells
From: Mike Frysinger When working with FDPIC, there are many shared mappings of read-only code regions between applications (the C library, applet packages like busybox, etc.), but the current do_mmap_pgoff() function will issue an icache flush whenever a VMA is added to an MM instead of only doi