This fixes a bug spotted by the iomem tester in the test suite. mmapper returns -EFAULT if the mmap length is greater than the iomem region size. If that size is less than one page, then mmap can never succeed because the minimum map length is one page. This fixes that by rounding the iomem file size up to the nearest page.

Fixed a couple of fencepost errors noticed by Blaisorblade. The end of range tests should be < rather than <=. Also reworded the comment to make it less misleading.

From Jim Pick - Fix a one byte buffer overflow in the umid allocation.

From the Trivial Patch Monkey - eliminate a couple of redundant includes.

Add CONFIG_NR_CPUS conditional on CONFIG_SMP. This fixes the SMP build.

This reverts part of the move-user-code patch. generic_console_write somehow behaves differently when inside chan_kern.c, causing UML to hang.

Protect against the host clock moving backwards. If delta goes negative, UML will see a very large number of ticks that need delivering. If that happens, this just sets delta to zero to minimize the damage.

This makes UML load at 0x8048000 rather than 0xa0000000 when CONFIG_MODE_SKAS is on and CONFIG_MODE_TT is off. This will make it more valgrind-friendly, and also allow much greater physical memory sizes without needing to use highmem.

This makes a couple of functions in mconsole static because they are not referenced from outside.

ifdef out log() for a rainy day. Also explain to the mystified what it is for.

This patch copies a bunch of cleanups that I made in the process of porting externfs, hostfs, and humfs to 2.6. Devices are split into major and minor numbers in the lower-level code, and put back together in externfs just before vfs sees them. This is necessary because the host may have a different idea of how a dev_t is organized than UML does. ubd_user is included here because it uses the uml_stat struct, and was affected by this change. inode.u.hostfs_i is no longer used. Instead, a pointer to the externfs data is hung off inode.u.generic_ip. This data is contained inside the lower-level data in the 2.6 way, and the lower level module used container-of to get its own data. Names were all changed to make sense and to eliminate functions with the same names in different files. So, externfs names contain "externfs" rather than "hostfs", and hostfs and humfs names begin with "hostfs" and "humfs" respectively. void * data items are now gone. externfs no longer knows anything about file handles. Those, if present, are contained in the lower-level data. Because of the 2.6 split between allocating inodes and initializing them, when externfs makes a new inode, it calls both the init and open or create routines in the underlying module.

This fixes a warning by moving new_mm from a userspace file, which can't know anything about file handles because they have embedded list_heads, to a kernelspace file, which can.

From "D. Bahi" @ enterasys.com - remove an unneeded line from the dynamic linker script.

On various places (mostly waitpid() calls) this patch makes sure that if errno == EINTR on return, then the syscall is endlessly retried. It also defines a simple generic way to do this. Signed-off-by: <blaisorblade_spam at yahoo.it>

Fixes raw() and uses it in check_one_sigio; also fixes a silly panic (EINTR returned by call). Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam at yahoo.it>

This patch cleans up the uses of raw since I was playing with that code anyway. All uses of raw and the associated uses of tcgetattr have their return values checked. raw now prints an error is something went wrong instead of relying on a flag passed in from the caller. The now argument was dropped, and all callers get TCSADRAIN rather than possibly TCSANOW.

Clean up the fork code, fixing a bogus return value, and adding some whitespace

This eliminates use of task.thread.kernel_stack. It was unnecessary, and was masking a bunch of kernel stack size assumptions.