Kernel

[PATCH 06/18] spufs: use llseek in all file operations
The default for llseek is changing, so we need explicit operations everywhere. Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> Cc: Jeremy Kerr <jk(a)ozlabs.org> Cc: linuxppc-dev(a)ozlabs.org --- arch/powerpc/platforms/cell/spufs/file.c | 24 +++++++++++++++++++++--- 1 files changed, 21 insertions(+), 3 deletions(-... 7 Jul 2010 17:53

[PATCH 18/18] vfs: make no_llseek the default
All file operations now have an explicit .llseek operation pointer, so we can change the default action for future code. This makes changes the default from default_llseek to no_llseek, which always returns -ESPIPE if a user tries to seek on a file without a .llseek operation. The name of the default_llseek ... 7 Jul 2010 17:53

[PATCH 05/18] arm/omap: use generic_file_llseek in iommu_debug
In future kernels, debugfs files need to specify the llseek operation explicitly to allow seeking. This sets the llseek operation in the omap iommu debugfs files to generic_file_llseek, which is appropriate for files using simple_read_from_buffer. Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> Cc: Tony Lindgren <... 7 Jul 2010 17:53

[PATCH 15/18] viotape: use noop_llseek
Some applications try to seek on tape devices and fail if they return an error. Since we want to change the default llseek action to no_llseek, viotape needs to be changed to use noop_llseek explicitly. Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> --- drivers/char/viotape.c | 1 + 1 files changed, 1 inser... 7 Jul 2010 17:53

[PATCH 04/18] ib/qib: use generic_file_llseek
When the default llseek action gets changed to no_llseek, all file systems relying on the current behaviour need to set explicit .llseek operations. In case of qib_fs, we want the files to be seekable, so generic_file_llseek fits best. Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> Cc: Roland Dreier <rolandd@c... 7 Jul 2010 17:53

[PATCH 11/18] oprofile: make event buffer nonseekable
The event buffer cannot deal with seeks, so we should forbid that outright. Signed-off-by: Arnd Bergmann <arnd(a)arndb.de> Cc: Robert Richter <robert.richter(a)amd.com> Cc: oprofile-list(a)lists.sf.net --- drivers/oprofile/event_buffer.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/d... 7 Jul 2010 17:53

[PATCH 17/18] vfs: don't use BKL in default_llseek
There are currently 191 users of default_llseek. Nine of these are in device drivers that use the big kernel lock. None of these ever touch file->f_pos outside of llseek or file_pos_write. Consequently, we never rely on the BKL in the default_llseek function and can replace that with i_mutex, which is also use... 7 Jul 2010 17:53

[PATCH] x86, numa: fix boot without RAM on node0 again
|commit e534c7c5f8d6e9fc46f57fab067c7e48d8ceb172 |Author: Lee Schermerhorn <lee.schermerhorn(a)hp.com> |Date: Wed May 26 14:44:58 2010 -0700 | | numa: x86_64: use generic percpu var numa_node_id() implementation | | x86 arch specific changes to use generic numa_node_id() based on generic | percpu vari... 7 Jul 2010 17:53

[PATCH] x86: Fix vtime/file timestamp inconsistencies
Due to vtime calling vgettimeofday(), its possible that an application could call time();create("stuff",O_RDRW); only to see the file's creation timestamp to be before the value returned by time. A similar way to reproduce the issue is to compare the vsyscall time() with the syscall time(), and observe ordering... 7 Jul 2010 17:52

NFSD: Server implementation of MAC Labeling
On Wed, Jul 07, 2010 at 02:03:21PM -0400, David P. Quigley wrote: Comments inline On Wed, 2010-07-07 at 13:21 -0400, J. Bruce Fields wrote: On Wed, Jul 07, 2010 at 10:31:26AM -0400, David P. Quigley wrote: This patch adds the ability to encode and decode file labels on the server for stati... 8 Jul 2010 10:15