At the moment, static_prio_timeslice() is only used in sys_sched_rr_get_interval() and only gives the correct result for SCHED_FIFO and SCHED_RR tasks as the time slice for normal tasks is unrelated to the values returned by static_prio_timeslice(). This patch addresses this problem and in the process moves all the code associated with static_prio_timeslice() to sched_rt.c which is the only place where it now has relevance. Signed-off-by: Peter Williams <pwil3058@bigpond.net.au> Pet...

Hi Linus, (previous email including the whole patch set is too big for the LKML, then here is the new one) This set of commits are for Blackfin architecture updates for 2.6.24 merge window, only thing related with Blackfin arch and some drivers will be sent out later for LKML review - Blackfin arch anomaly updates - GPIO pinmux updates - hardware tracing - rewrite reboot code - add earlyprintk support - bug fixing and code cleanup Please pull from 'for-linus' branch of master.kern...

This patch implements the functionality of jumping between the kexeced kernel and the original kernel. A new flag for sys_kexec_load named KEXEC_JUMP_BACK is added to indicate that the loaded kernel image is used for jumping back. To support jumping between two kernels, before jumping to (executing) the new kernel and jumping back to the original kernel, the devices are put into quiescent state, and the state of devices and CPU is saved. After jumping back from kexeced kernel and jumping to the n...

Kexec base hibernation has some potential advantages over uswsusp and TuxOnIce (suspend2). Some most obvious advantages are: 1. The hibernation image size can exceed half of memory size easily. 2. The hibernation image can be written to and read from almost anywhere, such as USB disk, NFS. 3. It is possible to eliminate freezer from kexec based hibernation implementation. 4. Based on kexec/kdump implementation, the kernel code needed is less. The hibernation procedure with the ...

subscribe linux-kernel end -

Crap, sorry, accidentally sent a version I had laying around demonstrating how one *would* get the answer he expects. The correct line is of course: prof_len = (unsigned long) &_etext - (unsigned long) &_stext; -

I've been having a back and forth going for a while with my TA and OS professor on the meaning of profile=3 and have been unable to convince either of them. The basic question is if profile=3 is passed to kernel with an 8MB text section, how big is the allocated profile buffer. His answer is 1MB.... if (prof_shift) { unsigned int size; /* only text is profiled */ prof_len = (unsigned *) &_etext - (unsigned *) &_stext; ...

Please have a look at my followup, I accidentally sent out code that I had used to produce an answer as my prof thought it works. The actual code casts to (unsigned long). Sigh, I've shot myself in the foot... Anyway, the book (and the class covers 2.4.1) and the associated code has since moved from init/main.c. Here's how the 2.4.1ish code looks: http://tldp.org/HOWTO/Linux-i386-Boot-Code-HOWTO/init_main.html -

From: Rob Landley <rob@landley.net> Rip out hardwired cross compiler name assumption that only m68k makes. Signed-off-by: Rob Landley <rob@landley.net> --- When you cross compile, you have to set the prefix CROSS_COMPILE to your cross compiler prefix. You need to do this for all targets (arm, mips, ppc, x86-64 on x86, etc). This is not specific to m68k, and this value is supplied _to_ the build, not supplied _by_ the build. The build shouldn't unconditionally overwrite the existi...

Linus, Please pull from: ssh://master.kernel.org/pub/scm/linux/kernel/git/mchehab/v4l-dvb.git master We have 300+ patches this time, covering lots of drivers improvements and fixes. Also, there are several core changes: - Unified support for Hybrid tuners on both V4L and DVB core; - videobuf split into PCI DMA S/G specific and a generic module; - added a videobuf handler for drivers that need vmalloc'ed memory like USB devices). And some driver additions: - cx23885 driver; ...

Well, I've talked to various people, and none of the main kernel people end up being at all interested in a kernel that has external dependencies on binary blobs for tuners. So right now it seems like while I would personally want to have more vendors supprt their own drivers, if that in this case means that we'd have to have user-space and unmaintainable binaries to tune the cards, everybody seems to hate that idea. As such, the old and decrepit em28xx driver seems more useful to peo...

To point to more changes within the available driver which hasn't been merged within the last 1 1/2 years: * it supports non usbaudio based video devices. * has support for dvb-t/atsc * allows multiple device node access in case of analogue TV * has teletext/VBI support for PAL. * it supports modules which are now in userspace instead of kernelspace due disagreements with some developers for 1 1/2 years. * I do not agree with certain developers who do not have any experience with certain parts of...

Hi Christoph, Al, Here's a set of patches that remove all calls to iget() and all read_inode() functions. They should be removed for two reasons: firstly they don't lend themselves to good error handling, and secondly their presence is a temptation for code outside a filesystem to call iget() to access inodes within that filesystem. There are a few benefits to this: (1) Error handling gets simpler as you can return an error code rather than having to call is_bad_inode(). (2) You...

Stop the HOSTFS filesystem from using iget() and read_inode(). Provide hostfs_iget(), and call that instead of iget(). hostfs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. hostfs_fill_sb_common() returns any error incurred when getting the root inode instead of EINVAL. Note that the contents of hostfs_kern.c need to be examined: (*) hostfs_iget() should perhaps subsume init_inode() and hostfs_read_inode(). (*) It wou...

Stop the HPPFS filesystem from using iget() and read_inode(). Provide an hppfs_iget(), and call that instead of iget(). hppfs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. hppfs_fill_sb_common() returns any error incurred when getting the root inode instead of EINVAL. Note that the contents of hppfs_kern.c need to be examined: (*) The HPPFS inode retains a pointer to the proc dentry it is shadowing, but whilst it d...

Stop the UFS filesystem from using iget() and read_inode(). Replace ufs_read_inode() with ufs_iget(), and call that instead of iget(). ufs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. ufs_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/ufs/inode.c | 34 ++++++++++++++++++++-------------- fs/ufs/namei.c ...

Stop the PROCFS filesystem from using iget() and read_inode(). Merge procfs_read_inode() into procfs_get_inode(), and have that call iget_locked() instead of iget(). Signed-off-by: David Howells <dhowells@redhat.com> --- fs/proc/inode.c | 60 ++++++++++++++++++++++++++----------------------------- 1 files changed, 28 insertions(+), 32 deletions(-) diff --git a/fs/proc/inode.c b/fs/proc/inode.c index 0e4d37c..7a563c5 100644 --- a/fs/proc/inode.c +++ b/fs/proc/inode.c @@ -78,11 +78,...

Stop the MINIX filesystem from using iget() and read_inode(). Replace minix_read_inode() with minix_iget(), and call that instead of iget(). minix_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. minix_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/minix/inode.c | 43 +++++++++++++++++++++++++++++-------------- fs/mini...

Stop the ISOFS filesystem from using read_inode(). Make isofs_read_inode() return an error code, and make isofs_iget() pass it on. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/isofs/inode.c | 25 +++++++++++++++++-------- 1 files changed, 17 insertions(+), 8 deletions(-) diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c index 043b470..28d990b 100644 --- a/fs/isofs/inode.c +++ b/fs/isofs/inode.c @@ -54,7 +54,7 @@ static void isofs_put_super(struct super_block *sb) ret...

Stop the HFSPLUS filesystem from using iget() and read_inode(). Replace hfsplus_read_inode() with hfsplus_iget(), and call that instead of iget(). hfsplus_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. hfsplus_fill_super() returns any error incurred when getting the root inode. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/hfsplus/btree.c | 6 ++++-- fs/hfsplus/dir.c | 6 +++--- fs/hfs...

Stop the FreeVXFS filesystem from using iget() and read_inode(). Replace vxfs_read_inode() with vxfs_iget(), and call that instead of iget(). vxfs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. vxfs_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/freevxfs/vxfs_extern.h | 2 +- fs/freevxfs/vxfs_inode.c | 45 +++++++...

Stop the EXT4 filesystem from using iget() and read_inode(). Replace ext4_read_inode() with ext4_iget(), and call that instead of iget(). ext4_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. ext4_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: "Theodore Ts'o" <tytso@mit.edu> Acked-by: Jan Kara <jack@suse.cz> ...

Stop the EFS filesystem from using iget() and read_inode(). Replace efs_read_inode() with efs_iget(), and call that instead of iget(). efs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. efs_fill_super() returns any error incurred when getting the root inode instead of EACCES. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/efs/inode.c | 25 +++++++++++++++++-------- fs/efs/namei.c | 23...

Stop the BFS filesystem from using iget() and read_inode(). Replace bfs_read_inode() with bfs_iget(), and call that instead of iget(). bfs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. bfs_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> --- fs/bfs/bfs.h | 2 ++ fs/bfs/dir.c | 6 +++--- fs/bfs/inode.c | 32 +++++++...

Stop the BEFS filesystem from using iget() and read_inode(). Replace befs_read_inode() with befs_iget(), and call that instead of iget(). befs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. befs_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Will Dyson <will_dyson@pobox.com> --- fs/befs/linuxvfs.c | 39 +++++...