Hi,
I met a program error when I tried to modify UML kernel. What I did was:
1. added a variable "a" in struct task_struct.
2. I wrote a function that will update the value of "a" in task struct
"current", i.e.,
something like:
foo () {
current->a = xx.
}
3. foo is called at many places.
Formatting fixes ahead of renaming os_{read_write}_file_k to
os_{read_write}_file and fixing all the callers.
Signed-off-by: Jeff Dike <[EMAIL PROTECTED]>
--
arch/um/drivers/chan_user.c | 11 ---
arch/um/drivers/cow_sys.h | 17 +-
arch/um/drivers/ubd_kern.c | 124 +
These are 2.6.22 material.
The first three finish getting rid of the bogus host file I/O code.
It turns out that all callers of the old code could have just used the
new code. I don't know why I was unable to log in when I earlier just
did the quick and simple conversion.
Patch 4 removes some de
I accidentally left the remnants of some debugging in an earlier patch.
Signed-off-by: Jeff Dike <[EMAIL PROTECTED]>
--
arch/um/kernel/tlb.c |3 ---
1 file changed, 3 deletions(-)
Index: linux-2.6.21-mm/arch/um/kernel/tlb.c
===
Rename os_{read_write}_file_k back to os_{read_write}_file, delete
the originals and their bogus infrastructure, and fix all the callers.
Signed-off-by: Jeff Dike <[EMAIL PROTECTED]>
--
arch/um/drivers/chan_kern.c |4 +--
arch/um/drivers/chan_user.c | 10 +++
arch/um/drivers
Give the page fault code a specialized path. There is only one page
to look at, so there's no point in going into the general page table
walking code. There's only going to be one host operation, so there
are no opportunities for merging. So, we go straight to the pte we
want, figure out what ne
Convert all remaining os_{read_write}_file users to use the simple
{read,write} wrappers, os_{read_write}_file_k.
Signed-off-by: Jeff Dike <[EMAIL PROTECTED]>
--
arch/um/drivers/chan_kern.c |4 ++--
arch/um/drivers/cow_sys.h |2 +-
arch/um/drivers/net_user.c |6 +++---
arch/um/driv
Allow deadlocks to be avoided in the AIO code by setting the pipe to
the I/O thread non-blocking.
Signed-off-by: Jeff Dike <[EMAIL PROTECTED]>
--
arch/um/os-Linux/aio.c |5 +
1 file changed, 5 insertions(+)
Index: linux-2.6.21-mm/arch/um/os-Linux/aio.c
===
