- 25 Oct, 2004 40 commits
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Antonino Daplas authored
The current cursor interface is confusing. Some fields are taken from the cursor structure in struct fb_info (enable, mask, rop fields) and the rest are taken from the passed cursor structure. These lead to a lot of confusion, making it hard for developers to write their own implementation. Also, the cursor code has several 'short-circuits', occassionally leading to undefined cursor behavior. These are the changes brought about by the patch: - Removed struct fb_cursor and related fields from struct fb_info, and instead, placed them in a struct not visible to fbdev. - The struct fb_cursor passed to fb_cursor() will _always_ contain valid data with various bitflags indicating which fields have changed - The struct fb_pixmap sprite in struct fb_info is used only by drivers with hardware cursor implementation. Initializing and allocating memory for this structure is not needed. Remove initialization and memory allocation. - The FBIO_CURSOR ioctl is broken (because fb_cursor() is broken). For now, remove fb_cursor code and make the FBIO_CURSOR ioctl always return -ENODEV. - The flag FB_CUR_SETCUR is changed to FB_CUR_SETIMAGE, indicating that the cursor sprite has changed. The image change is now checked by fbcon so drivers will not unnecessarily load the sprite image everytime. This causes hardware cursors to flicker, especially in rivafb. - Remove fb_load_cursor_image(). This is unused, and should not be implemented generically. - Documented the usage of the cursor interface in skeletonfb.c Signed-off-by:
Antonino Daplas <adaplas@pol.net> Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Antonino Daplas authored
Alexander Kern <alex.kern@gmx.de> [PATCH] port Daniel Mantione 2.4 driver to 2.6 [PATCH] add more pci_id number [PATCH] add accelerated imgblit [PATCH] revert SDRAM_MAGIC_PLL to old behaviour [PATCH] do a "from BIOS" initialisation only by __i386__ Arnaud FONTAINE <arnaud.fontaine@free.fr> [PATCH atyfb] correction for 3D Rage Mobility L Geert Uytterhoeven <geert@linux-m68k.org> [PATCH atyfb] Atari Atyfb fixes [PATCH atyfb] Atyfb on Mach64 GX or Atari [PATCH 468] m68k sparse floating point James Simmons <jsimmons@infradead.org> [PATCH add] port to framebuffer_alloc api Nicolas Souchu <nsouch@free.fr> [PATCH] I do not found a copy, but it was incorporated too Ville Syrjälä <syrjala@sci.fi> [PATCH] fix pan with doublescan [PATCH] another double scan fix [PATCH] disable linear aperture register access [PATCH] Memory type correction [PATCH] atyfb (2.6): Fix mmio_start [PATCH] atyfb (2.6): Fix mem_refresh_rate for Mobility [PATCH] atyfb (2.6): Add RGB565 support [PATCH] atyfb: Blank LCD by turning off backlight voltage [PATCH] atyfb: Rage LT LCD register access [PATCH] atyfb: vblank irq support [PATCH] atyfb: MTRR support Antonino Daplas <adaplas@pol.net> remove/modify all references to info->cursor Signed-off-by:
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Antonino Daplas authored
The function inter_module_get/put is to be deprecated. Remove. Signed-off-by:
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Antonino Daplas authored
- Reduce pixmap size allocated by fbmem, i810fb and rivafb from 16-64K to 8K. This size is sufficient that a single putcs call can be accomodated by a single imageblit - Replace NR_FB_DRIVERS with FB_MAX - Trivial code, Kconfig and Documentation cleanup Signed-off-by:
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Werner Almesberger authored
This patch updates my entry. (Long overdue ...) Signed-off-by:
Werner Almesberger <werner@almesberger.net> Signed-off-by:
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Alasdair G. Kergon authored
Remove duplicate kfree in dm_register_target error path. Signed-Off-By:
Alasdair G Kergon <agk@redhat.com> Signed-off-by:
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Alasdair G. Kergon authored
Remove stray semicolon. Signed-Off-By:
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Alasdair G. Kergon authored
This patch adds a new IV mode ''encrypted sector|salt IV'' described in http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/472 To use ESSIV, set the ivmode (using the new syntax) to "essiv:<hash>". "hash" should be a valid cryptoapi hash. This, for example, is a valid dm-target line: 0 200 crypt aes-cbc-essiv:sha256 00000000000000000000000000000000 0 /dev/loop/5 0 Signed-Off-By:
Christophe Saout <christophe@saout.de> Signed-Off-By:
Fruhwirth Clemens <clemens@endorphin.org> Signed-off-by:
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Alasdair G. Kergon authored
Create crypt_iv_operations structure with generator method and move the plain iv generator into this structure. Optionally accept an extended <sector format> syntax: <cipher>-<chaining mode>-<iv mode> This also makes it ready to support chaining modes other than CBC mode, such as CMC (not implemented in cryptoapi yet), The problems outlined by Adam J. Richter in http://article.gmane.org/gmane.linux.kernel.device-mapper.dm-crypt/454 would be fixed by switching to CMC chaining mode. Example of a valid target line: 0 200 crypt aes-cbc-plain 00000000000000000000000000000000 0 /dev/loop/5 0 Signed-Off-By:
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Alasdair G. Kergon authored
Small dm-crypt tidy-ups: - Use unsigned consistently - Simplify crypt_iv_plain memset - Use DMEMIT macro Signed-Off-By:
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Alex Kiernan authored
Fix handling of device inodes on Solaris x86 filesystems, add support for large dev_t against Solaris UFS filesystems. Signed-off-by:
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Marcelo Tosatti authored
Change pagevec "nr" and "cold" back to "unsigned long", because <4 byte accesses can be slow on architectures < Pentium III (additional "data16" operand on instruction). This still honours the cacheline alignment, making the size of "pagevec" structure a power of two (either 64 or 128 bytes). Haven't been able to see any significant change on performance on my limited testing. Signed-off-by:
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Peter Pregler authored
Newer versions of module-init-tools do some locking now which leads to a dead-lock if cpia.c does a request_module("cpia_usb/pp"). The attached patch against 2.6.8 removes the request_module. The problem is actually the same as is documented in debian bug #259056 which was caused by alsa autoloading some oss-modules. So I guess there might be more places in the kernel where this new locking in the module-init-tools might lead to dead-locks. Signed-off-by:Peter Pregler <Peter_Pregler@email.com> Acked-by:
Gerd Knorr <kraxel@bytesex.org> Signed-off-by:
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Petr Vandrovec authored
Weak symbol may be unavailable in kernel, but if it is available, its signature should be same as was at the build time. If we do not attach signatures to weak symbols, kernel is tainted when such module is loaded. vmmon: no version for "sys_ioctl" found: kernel tainted. I also believe that it is safer to add & check signatures here - module wants either sys_ioctl with right signature, or no sys_ioctl at all, not sys_ioctl with different signature (which signals that there is some misbuild occuring). Signed-off-by:
Petr Vandrovec <vandrove@vc.cvut.cz> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (forwarded) Signed-off-by:
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James Morris authored
This patch consolidates several occurrences of duplicated code into a new libfs function d_alloc_name(). Signed-off-by:
James Morris <jmorris@redhat.com> Signed-off-by:
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Mingming Cao authored
Currently the ext2 preallocation is discarded on every iput() (via ext2_put_inode()). We should only discard the preallocation on the last iput() (via ext2_clear_inode()). Signed-off-by:
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Neil Brown authored
Add some missing data_offset additions and some le_to_cpu convertions and fix a few other little mistakes. Signed-off-by:
Neil Brown <neilb@cse.unsw.edu.au> Signed-off-by:
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Neil Brown authored
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Neil Brown authored
If one md array is waiting for another to finish resyncing, then it holds a reference to the array, so the array cannot be stopped. With this patch, we drop the reference before waiting. Signed-off-by:
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Neil Brown authored
csum_fold should always have been used on the result of csum_partial. calc_sb_csum_common therefore isn't needed. Signed-off-by:
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Neil Brown authored
When retrying a read request, we need to "Reset" the bio. It is easiest to get this right if we discard the bio we have and re-clone it. Signed-off-by:
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Neil Brown authored
Each md personality keeps a list of devices that are currently active in the array (mdk_rdev_t). As these can potentially be removed at any time, some locking is needed when accessing entries in the list. Currently this involves a spinlock, but all the spinlocking this imposed in unplug_slaves bothered me. So, I have changed it to use rcu locking. This is more appropriate as objects are removed only very rarely, and there is no cost in waiting a little while for a remove to succeed. Also, all changes to the list of devices are performed by the per-array thread (calling md_check_recovery) and so are completely single threaded, so no locking between writers is needed at all. Finally, devices are never added or removed while resync is happening, so resync doesn't need to worry about locking at all. So with this patch, the spinlocking is replaced with rcu read locking and synchronize_kernel. The rcu_read_lock is held while dereferencing a possible device, and the nr_pending count is atomically incremented if the device is to be held outside of the rcu_read_lock. When removing a device, if the nr_pending count appears to be zero, we set the list entry to NULL and call synchronize_kernel(). If the count is still zero after this, we have a safe removal. If it is non-zero, then someone has just started using it so we put the pointer back and fail the removal. When the new user finally drops it's reference, that will cause the per-array thread to wake up again and retry the removal. Signed-off-by:
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Neil Brown authored
These can cause resync to spin when there is a faulty drive. Signed-off-by:
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Neil Brown authored
The ->nr_pending counted should always be decremented with rdev_dec_pending, as this need to do things when the count hits zero. There were a few places where it was being decremented directly. Signed-off-by:
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Neil Brown authored
There are currently subtle differences in the different personalities concerning when subdevices are unplugged (faulty? nr_pending?). This patch makes them sll uniform. Signed-off-by:
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Neil Brown authored
The functions are all subtly different. This patch makes them all much the same. In particular, EOPNOTSUPP gets returned by all is appropriate. Signed-off-by:
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Neil Brown authored
Both raid1 and multipath have a "retry_list" which is global, so all raid1 arrays (for example) us the same list. This is rather ugly, and it is simple enough to make it per-array, so this patch does that. It also changes to multipath code to use list.h lists instead of roll-your-own. Signed-off-by:
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Neil Brown authored
Following are 7 patches for md They all grew out of a desire to redo the locking in unplug_slave. Getting and dropping a spinlock so often for very little gain (it would be nearly impossible to lose the relevant race) really bothered me. I finally figured that I could reply it with rcu locking which is very light wait, and quite up to the task. One the way I found an number of inconsistencies that needed cleaning up and even a few bugs to fix. The first 6 patches deal with these inconsistencies and bugs. The last redoes the locking for adding/removing/accessing devices within md personalities. This patch: md_flush_all() isn't needed as each personality defines its own issue_flush_fn. Signed-off-by:
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Darren Hart authored
The following patch against the latest mm fixes several problems with active_load_balance(). Rather than starting with the highest allowable domain (SD_LOAD_BALANCE is still set) and depending on the order of the cpu groups, we start at the lowest domain and work up until we find a suitable CPU or run out of options (SD_LOAD_BALANCE is no longer set). This is a more robust approach as it is more explicit and not subject to the construction order of the cpu groups. We move the test for busiest_rq->nr_running <=1 into the domain loop so we don't continue to try and move tasks when there are none left to move. This new logic (testing for nr_running in the domain loop) should make the busiest_rq==target_rq condition really impossible, so we have replaced the graceful continue on fail with a BUG_ON. (Bjorn Helgaas, please confirm) We eliminate the exclusion of the busiest_cpu's group from the pool of available groups to push to as it is the ideal group to push to, even if not very likely to be available. Note that by removing the test for group==busy_group and allowing it to also be tested for suitability, the running time is nearly the same. We no longer force the destination CPU to be in a group of completely idle CPUs, nor to be the last in that group. Signed-off-by:
Darren Hart <dvhltc@us.ibm.com> Signed-off-by:
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Akinobu Mita authored
The number of times schedule() left the processor idle in the /proc/schedstat (runqueue.sched_goidle) seems to be wrong. The schedule() statistics should satisfy the equation: sched_cnt == sched_noswitch + sched_switch + sched_goidle (http://eaglet.rain.com/rick/linux/schedstat/v10/format-10.html) The below patch fix this, and I have confirmed to be fixed with: # grep ^cpu /proc/schedstat | awk '{print $6+$7+$9, $8}' Acked-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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John Hawkes authored
A large number of processes that are pinned to a single CPU results in every other CPU's load_balance() seeing this overloaded CPU as "busiest", yet move_tasks() never finds a task to pull-migrate. This condition occurs during module unload, but can also occur as a denial-of-service using sys_sched_setaffinity(). Several hundred CPUs performing this fruitless load_balance() will livelock on the busiest CPU's runqueue lock. A smaller number of CPUs will livelock if the pinned task count gets high. This simple patch remedies the more common first problem: after a move_tasks() failure to migrate anything, the balance_interval increments. Using a simple increment, vs. the more dramatic doubling of the balance_interval, is conservative and yet also effective. Signed-off-by:
John Hawkes <hawkes@sgi.com> Acked-by:
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Jesse Barnes authored
Small bug fix for domains that don't load balance (like those that only balance on exec for example). Signed-off-by:
Jesse Barnes <jbarnes@sgi.com> Acked-by:
Nick Piggin <nickpiggin@yahoo.com.au> Acked-by:
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Martin Schwidefsky authored
From: Frank Pavlic <pavlic@de.ibm.com> From: Thomas Spatzier <tspat@de.ibm.com> s390 network driver changes: - ctc/iucv: Use DECLARE_PER_CPU instead of extern DEFINE_PER_CPU. - lcs: Always set channel state to CH_STATE_INIT when stopping channels. - qeth: vlan fixes. Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Martin Schwidefsky authored
From: Utz Bacher <utz.bacher@de.ibm.com> qdio changes: - Rename iqdio_is_inbound_q_done to tiqdio_is_inbound_q_done to keep function naming consistent. - Allocate qdio structures below 2GB. Signed-off-by:
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Martin Schwidefsky authored
From: Christian Borntraeger <cborntra@de.ibm.com> Debug feature changes: - Add system control to stop the debug feature. Signed-off-by:
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Martin Schwidefsky authored
From: Carsten Otte <cotte@de.ibm.com> From: Gerald Schaefer <geraldsc@de.ibm.com> Cleanup segment load/unload infrastructure. Signed-off-by:
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Martin Schwidefsky authored
s390 core changes: - Load pid to cr4 on context switch. - Correct and check buffer length of cpcmd. Fix cpcmd inline assembly. - Add missing cc clobber to do_softirq insline assembly. - Regenerate default configuration. Signed-off-by:
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Martin Schwidefsky authored
s390 core changes: - Force user process back to home space mode in space switch event exception handler. Signed-off-by:
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Paolo \'Blaisorblade\' Giarrusso authored
Signed-off-by:
Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it> Signed-off-by:
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Paolo \'Blaisorblade\' Giarrusso authored
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