- 29 Oct, 2002 40 commits
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Patrick Mochel authored
into osdl.org:/home/mochel/src/kernel/devel/linux-2.5-kobject
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Randy Dunlap authored
This removes a small thinko (2 of: n = *pos) in kernel/module.c's s_start() function.
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Alexander Viro authored
Ok, with this simple fix loop builds and loop works no worse than the old shm/loop approach (better - it does boot). However, both 2.4.44+ and this animal have the same and rather odd breakage in loop-over-device. Loop-over-file works fine, but loop over device gives random crap on reads. And no, it's not a problem with underlying device itself - something happens in loop.c. I'm going down right now, so I'll be back in several hours and will try to debug it. Hopefully by the morning I'll have a fix.
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John Levon authored
This ensures we deal properly with multiple perfctr overflow interrupts under high load.
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John Levon authored
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Brian Gerst authored
Make the test for supported GCC options into a macro, and add new checks for -march={winchip-c6,winchip2,c3}.
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Rusty Russell authored
The new resource interface foolishly replicated the (obsolete, racy) spirit of the check_region call as check_resource. You should use request_resource/release_resource instead.
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Alexander Viro authored
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Adam Kropelin authored
Fix an off-by-one error in the simplified SD_MAJOR macro which not only botches up the sd majors but also steals away the major used by my favorite slow-than-dirt SCSI RAID controller: cpqarray. Please, can I have it back?
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Alexander Viro authored
- add lo->lo_blocksize - kill lo_get_bs() - great name, but... - set ->lo_device only if we do have a block device - pull determination of ->lo_blocksize into both branches - bdev variant gets it from lo_device and file one uses ->i_blocksize. - switched the ioctl getting information about underlying object to lo->lo_device ? stat.rdev : stat.dev - i.e. st_rdev of underlying object if it's a device and st_dev - if it's a file. - reverted the bogosity in shmem.c
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Patrick Mochel authored
This works on obviating the need for a separate data type to describe a sysfs directory (which was renamed from struct driver_dir_entry to struct sysfs_dir). All sysfs creation and removal functions now take a struct kobject, instead of a struct sysfs_dir. This kobject is embedded in ->d_fsdata of the directory. sysfs_create_dir() takes only 1 parameter now: the object that we're creating the directory for. The parent dentry is derived by looking at the object's parent. sysfs_create_file() takes the object as the first parameter, and the attribute as the second, which makes more sense from an API perspective. sysfs_remove_file() now takes an attribute as a second parameter, to be consistent with the creation function. sysfs_remove_link() is created, which is basically the old sysfs_remove_file(). (symlinks don't have an attribute associated with them; only a name, which was prohibiting the previous change). open() and close() look for a kobject now, and do refcounting directly on the object. Because of that, we don't need the ->open() and ->close() callbacks in struct sysfs_ops, so they've been removed. read() and write() also now look for a kobject now. The comments have been updated, too.
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Neil Brown authored
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Patrick Mochel authored
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Patrick Mochel authored
This is not meant to be fancy; just something simple for which we can control the refcount and other common functionality using common code. The basic operations for registration and reference count manipulation are included.
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http://gkernel.bkbits.net/misc-2.5Linus Torvalds authored
into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux
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Jeff Garzik authored
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Jeff Garzik authored
into redhat.com:/home/jgarzik/repo/misc-2.5
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Andrew Morton authored
Patch from Hugh Dickins Added shmem_readpage and shmem_prepare_write so tmpfs files can be used by the loop driver (together with simple_commit_write). shmem_getpage extended to accept file page passed in, which may have to be copied over from swap page. Use bdget and sb_set_blocksize so loop can see our preferred blocksize PAGE_CACHE_SIZE. Use copy_highpage, removed from highmem.h in 2.4.17: restore it but with kmap_atomics. Restore (a simple) copy_page to asm-sparc64/page.h, which alone of all arches discarded it.
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Andrew Morton authored
Patch from Hugh Dickins From Matthew Wilcox <willy@debian.org>: shmem_getpage must flush_dcache_page after allocating and clearing a new page.
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Andrew Morton authored
Patch from Hugh Dickins Checked shmem_file_write against recent filemap source, and against 2.4 and 2.4-ac: folded in missing fixes, mostly related to far file positions. Plus the new kmap_atomic copying technique. But for now, as before, no mark_page_accessed or SetPageReferenced in shmem.c: add those, or whatever, later on when akpm has reviewed usage elsewhere.
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Andrew Morton authored
Patch from Hugh Dickins Added shmem_file_sendfile to allow sendfile from tmpfs. Checked do_shmem_file_read and shmem_file_read against filemap equivalents to add in any recent fixes (-EINVAL when count < 0 was missing).
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Andrew Morton authored
Patch from Hugh Dickins Remove obsolete shmem_fs_type: we were in some doubt whether safe yet to do so, then found 2.5.4 typo changed it from 2.4's "shm" to "shmem" ever since: nobody complained, delete it - we're "tmpfs" since 2.4.4. Use libfs' simple_empty and simple_sync_file instead of homegrown. Remove exit_shmem_fs, it fools people that this might be a module. Allow for faint possibility that shm_mnt could not be initialized.
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Andrew Morton authored
Patch from Hugh Dickins Here I intended a patch to remove the unsatisfactory shmem_recalc_inode (which tries to work out when vmscan has freed undirtied hole pages, to relax its blocks-in-use limit; but can only do so per-inode when it needs to be per-super). I had hoped to use the releasepage method, but it looks like it can't quite be bent to this task, the page might still be rebusied after release. 2.4-ac uses a removepage method dedicated to this, but I'm reluctant to ask for such a minor address_space_operation. So, leave shmem_recalc_inode as is, but avoid the issue as much as possible, by letting shmem_getpage use the empty_zero_page instead of allocating when a hole is read (but this cannot be done when it's being mapped, nowadays the nopage doesn't know if page will be copied or not). Whereupon shmem_getpage(,,,SGP_READ) can do partial trunc's holdpage.
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Andrew Morton authored
Patch from Hugh Dickins The last set of tmpfs patches left shmem_getpage with an inadequate next_index test to guard against races with truncation. Now remove that check and settle the issue with checks against i_size within shmem_swp_alloc, which needs to know whether reading or writing.
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Andrew Morton authored
Patch from Hugh Dickins shmem_getpage does need to lock its page (to secure it against shmem_writepage), but it's easier for its callers if it unlocks before returning. The only caller who appeared to be using the page lock was shmem_file_write, but it wasn't actually protecting against anything - i_sem prevents concurrent writes and truncates, and do_shmem_file_read was dropping the lock before copying anyway.
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Alexander Viro authored
- name_to_kdev_t() turned into name_to_dev_t(), callers updated. - table of names is gone, we use driverfs instead. - root name is converted to dev_t only at prepare_namespace() time - we use to do it in setup and we need it after driver initialization. So setup only stores the root name and leaves the work to prepare_namespace(). - disk names for rd and cm206 changed to match the old behaviour of root= parser: ramdisks have ram<n> in ->disk_name now (instead of rd<n>) and cm206 - cm206cd (instead of cm206).
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Pavel Machek authored
This uses better constraints that do not go through the register unneccessarily.
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Pavel Machek authored
Do not oops when no swapfile is available and make it compile on DISCONTIGMEM machines.
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Brian Gerst authored
This patch does a few cleanups/fixes with __verify_write: - Only compile it when needed. - Move test for KERNEL_DS out of line. - The mmap semaphore is needed to access the vma list. - Use fixmap for the WP test. - Removes an obsolete comment in fixmap.h
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Brian Gerst authored
It was copied from i386 and is unused.
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Christoph Hellwig authored
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Brian Gerst authored
This fixes PTRACE_GETFPREGS to initilize the fpu struct correctly on cpus with fxsr, as well as removing redundant code.
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Alexander Viro authored
- fixes an idiocy with floppy_find() et.al. - they forgot to set *part to 0. As the result, open() on anything other than fd0 had lead to interesting effects... - fixes off-by-1 in set_disk_ro().
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Linus Torvalds authored
implementation. The optimized versions only work for large areas, make sure we don't use them for anything else.
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Linus Torvalds authored
configuration system, and instead just cleanly show the dependency.
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Christoph Hellwig authored
The ifdef <actual cpu selection> is very bad style, we usually introduce feature CONFIG_ options in config.in instead.
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bk://linuxusb.bkbits.net/pci_hp-2.5Linus Torvalds authored
into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux
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bk://linuxusb.bkbits.net/pnp-2.5Linus Torvalds authored
into penguin.transmeta.com:/home/penguin/torvalds/repositories/kernel/linux
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Greg Kroah-Hartman authored
into kroah.com:/home/greg/linux/BK/pci_hp-2.5
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Linus Torvalds authored
into home.transmeta.com:/home/torvalds/v2.5/linux
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