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author | Bernd Schmidt <bernds_cb1@t-online.de> | 2008-04-23 19:06:15 (GMT) |
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committer | Bryan Wu <cooloney@kernel.org> | 2008-04-23 19:06:15 (GMT) |
commit | d5adb029efad3c51db376d620319abe65d1efc21 (patch) | |
tree | 660caff4c28e904f00a040c0ed4a17d5010c6f20 /arch/blackfin/Kconfig | |
parent | 1ebc723cf04b55e7aeeec2e758293575d29a9c2b (diff) | |
download | linux-fsl-qoriq-d5adb029efad3c51db376d620319abe65d1efc21.tar.xz |
[Blackfin] arch: This allows XIP to work with FD-PIC.
Previously, init failed to do anything meaningful;
it turns out that the reason is that FD-PIC has a readonly data
section which can be located in the XIP filesystem, and various address checks
in the kernel reject such addresses for syscall arguments. Hence, init's
execve ("/bin/sh", ...)
failed with error code EFAULT.
There's room for improvement here: in case people want to have filesystems
on flash rather than in main memory, _access_ok should be modified to
allow this.
This bug fix is also dedicated to Michael Hennerich.
Signed-off-by: Bernd Schmidt <bernds_cb1@t-online.de>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/Kconfig')
0 files changed, 0 insertions, 0 deletions