- 07 May, 2003 27 commits
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Andrew Morton authored
From: Manfred Spraul <manfred@colorfullife.com> Real 80386 cpus ignore the write protected bit in the page tables when running in supervisory mode. Thus the write protected bit must be checked by software. The current implementation does that check during access_ok(). This can result in data corruptions, if kswapd starts a swap-out between the access_ok and the actual write operation. To fix this, the patch moves the check from access_ok() into __copy_to_user_ll(), and redirects all user space writes into __copy_to_user_ll(). The patch only affects kernels build for 80386 cpus. Additionally, the patch removes the dead prototypes for __put_user_{1,2,4,8}. Due to the uninlining of access_ok, the .text segment is now ~ 8 kB shorter.
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Andrew Morton authored
From: Monchi Abbad <kernel@axion.demon.nl> I found a mistake in the dvbdev.c file when creating the dvb /devfs files, it created /dev/dvb/adapter0device0 instead of /dev/dvb/adapter0/device0. But here is a simple fix.
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Andrew Morton authored
From: Christoph Hellwig <hch@lst.de> This is a pretty huge patch, but splitting it doesn't make a lot of sense.. (USB may still need work)
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Andrew Morton authored
From: Christoph Hellwig <hch@lst.de> partition_name() is a variant of __bdevname() that caches results and returns a pointrer to kmalloc()ed data instead of printing into a buffer. Due to it's caching it gets utterly confused when the name for a dev_t changes (can happen easily now with device mapper and probably in the future with dynamic dev_t users). It's only used by the raid code and most calls are through a wrapper, bdev_partition_name() which takes a struct block_device * that maybe be NULL. The patch below changes the bdev_partition_name() to call bdevname() if possible and the other calls where we really have nothing more than a dev_t to __bdevname. Btw, it would be nice if someone who knows the md code a bit better than me could remove bdev_partition_name() in favour of direct calls to bdevname() where possible - that would also get rid of the returns pointer to string on stack issue that this patch can't fix yet.
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Andrew Morton authored
From: Christoph Hellwig <hch@lst.de> Some people may already have noticed that I've been revamping the devfs API recently. The worst offender still left is devfs_register, it's prototype is: devfs_handle_t devfs_register(devfs_handle_t dir, const char *name, unsigned int flags, unsigned int major, unsigned int minor, umode_t mode, void *ops, void *info) Of these: - dir and flags are always zero - the return value is never used - info is only used in one driver which doesn't even need it for operation - umode_t always describes a character device - name very often comes from a stack buffer we sprintf'ed into so obviously we really want a much simpler API instead. My first draft for this was: int devfs_mk_cdev(dev_t dev, umode_t mode, struct file_operations *fops, void *info, const char *fmt, ...) this removes the unused argumens, switches to a proper dev_t for the device number and allows to directly use a printf-like expression as name, getting rid of the temporary buffers. Now Al has reappeared and put the first steps of his CIDR for charater device on public ftp and we'll soon have a similar lookup object + fops mechanism in generic code as we already habe for blockdevices, i.e. the devfs code to assign fops from an entry will become superflous as generic code already does it. That means the fops and info arguments are obsolete before they were introduced, so I'd like to propose the following API instead: int devfs_mk_cdev(dev_t dev, umode_t mode, const char *fmt, ...) which is much nicer anyway. The educated reader will notice that this is exactly the same prototype devfs_mk_bdev has so I'll probably get suggestions to merge those two into some kind of devfs_mk_node soon. Personally I don't like that as character and blockdevices are two really separate entinities and I'll like to keep them as separate as possible. Example patch that introduces the API and converts drivers/input attached. Every driver which calls devfs_mk_cdev (about 50) needs conversion. Note that the transition can happen in pieces - devfs_register continues to work after this patch, it's just the plan to get rid of it in the end.
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Andrew Morton authored
From: Christoph Hellwig <hch@lst.de> disk_name() (and hence bdevname()) are now returning devfs-style device names when devfs is enabled. This is nice, but these names are very long, and they overflow the 32-char buffers which these functions use. The choices are: a) Use a bigger buffer (increase BDEVNAME_SIZE). This might be practical. But how big? b) return the name in kmalloced memory, make caller free it up. Yuk. c) Add a print_bdevname() thing and intersperse that amongst the printk's. This would work. d) Just print the non-devfs device name. That's what this patch does.
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Andrew Morton authored
From: Chris Heath <chris@heathens.co.nz> This patch fixes the PrintScreen key when CONFIG_MAGIC_SYSRQ is enabled. It allows you to use that key normally when Alt is not being pressed. Patch is against kernel 2.5.68.
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Andrew Morton authored
From: Zwane Mwaikambo <zwane@linuxpower.ca> update pcmcia drivers for new IRQ API
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Andrew Morton authored
From: Stewart Smith <stewartsmith@mac.com> Remove the UPDATE_ATIME() macro, use update_atime() directly.
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Andrew Morton authored
From: Christoph Hellwig <hch@lst.de> Change sysrq sync/remount from a magic bdflush hook to proper pdflush operations. The sync operation reuses most of the regular sys_sync path now instead of implementing it's own superblock walking and (broken) local disk detection, the remount implementation has been moved to super.c, cleaned up and updated for the last two years locking changes. It also shares some code with the regular remount path now.
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Andrew Morton authored
From: Manfred Spraul <manfred@colorfullife.com> attached is the promised cleanup/bugfix patch for the slab bootstrap: - kmem_cache_init & kmem_cache_sizes_init merged into one function, called after mem_init(). It's impossible to bring slab to an operational state without working gfp, thus the early partial initialization is not necessary. - g_cpucache_up set to FULL at the end of kmem_cache_init instead of the module init call. This is a bugfix: slab was completely initialized, just the update of the state was missing. - some documentation for the bootstrap added. The minimal fix for the bug is a two-liner: move g_cpucache_up=FULL from cpucache_init to kmem_cache_sizes_init, but I want to get rid of kmem_cache_sizes_init, too.
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Andrew Morton authored
The timer is being initialised too late (in ->open()). If modprobe fails we get an uninitialised timer warning.
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Andrew Morton authored
From: Michael Buesch <fsdeveloper@yahoo.de> and Paul Schroeder. mwavedd.h needs <linux/wait.h> and smapi.h
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Andrew Morton authored
- ifdef fix in kmap_types.h (Oleg Drokin) - remove redundant ext3 inclusions (Burton Windle) - Fix misidentified warning printk in vmalloc.c - radeon_cp printk warning fix (Randy Dunlap) - Update minimum binutils version for the ".incbin" thing in vsyscall.S - update raw driver to recent module API. - update my email address
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Andrew Morton authored
From: Zwane Mwaikambo <zwane@linuxpower.ca> There was a 2.4 merge from Alan Cox, but a few #ifdef's got shuffled around in the process, resulting in a broken build for !CONFIG_PM
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Andrew Morton authored
From: Andi Kleen <ak@muc.de> This driver was bogusly relying on the dropping of the __exit section at link time. cpia_exit() is calling proc_cpia_destroy(), which doesn't even exist if !CONFIG_MODULE.
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Andrew Morton authored
From: Andi Kleen <ak@muc.de> Some configs didn't link anymore because they got references from .altinstructions to __exit functions. Fixing it at the linker level is not easily possible. This patch just discards .text.exit at runtime instead of link time to avoid this. It will also fix a related problem with .eh_frame in modern gcc (so far only observed on x86-64, but could happen on i386 too)
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Andrew Morton authored
From: Andi Kleen <ak@muc.de> This patch adds an generic x86 subarchitecture. It is intended to provide an dynamic interface for APIC drivers. There are already three subarchitectures (bigsmp, summit, default) that only differ in how they drive the local APIC. A fourth - Unisys ES7000 - is scheduled to be merged soon. The subarchitecture concept separated this nicely, but it has the big drawback that they are compile time options. A Linux vendor cannot ship own binary kernel rpms for all of these machines. Runtime probing is needed instead. This patch adds a new "generic" subarchitecture that just acts as a dynamic switching layer for APIC drivers. It only tries to virtualize the APICs, no attempt is made to cover further incompatiblities. This means machines like the Visual Workstation, pc9800 or Voyager are not covered; but these are unlikely to be supported by binary distributions anyways. The generic arch reuses the existing interface in mach_ipi / mach_mpparse.h / mach_apic.h and just pulls it using some macros into an "struct genapic" object. The main APIC code does not recognize it, it is all hidden in the mach-generic include files. Auto detection of APIC types is supported in the usual way used by existing ports like Summit - checking ACPI or mptables for specific signatures - or it can be specified by the user using a new "apic=" boot option. I also moved the DMI scan to before the generic subarchitecture probe, so DMI could be used in future too to probe specific machines. Some minor hacks were needed to avoid circular declaration of a few symbols, but overall it's fairly clean. The patch has been tested on a Summit machine, an generic 4 virtual CPUs Xeon and on an ES7000.
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Linus Torvalds authored
user-supplied source checker on all C files before compiling them. I'll release the actual checker once I've cleaned it up a bit more (yay, all the copyright paperwork completed!)
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Linus Torvalds authored
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Linus Torvalds authored
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Linus Torvalds authored
"defined()" rather than using it as a value.
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Linus Torvalds authored
properly checked with the rest of the kernel.
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bk://kernel.bkbits.net/gregkh/linux/linus-2.5Linus Torvalds authored
into penguin.transmeta.com:/home/torvalds/v2.5/linux
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Greg Kroah-Hartman authored
into kroah.com:/home/greg/linux/BK/gregkh-2.5
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bk://kernel.bkbits.net/davem/net-2.5Linus Torvalds authored
into penguin.transmeta.com:/home/torvalds/v2.5/linux
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Linus Torvalds authored
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- 06 May, 2003 13 commits
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David S. Miller authored
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Olof Johansson authored
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Randy Dunlap authored
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Randy Dunlap authored
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Chas Williams authored
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Chas Williams authored
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Chas Williams authored
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Andrew Morton authored
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Stephen Hemminger authored
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Bart De Schuymer authored
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Randy Dunlap authored
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Randy Dunlap authored
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Greg Kroah-Hartman authored
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