- 07 Feb, 2008 40 commits
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Balbir Singh authored
Allow tasks to migrate from one cgroup to the other. We migrate mm_struct's mem_cgroup only when the thread group id migrates. Signed-off-by:
Balbir Singh <balbir@linux.vnet.ibm.com> Cc: Pavel Emelianov <xemul@openvz.org> Cc: Paul Menage <menage@google.com> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: Kirill Korotaev <dev@sw.ru> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: David Rientjes <rientjes@google.com> Cc: Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Balbir Singh authored
Add the accounting hooks. The accounting is carried out for RSS and Page Cache (unmapped) pages. There is now a common limit and accounting for both. The RSS accounting is accounted at page_add_*_rmap() and page_remove_rmap() time. Page cache is accounted at add_to_page_cache(), __delete_from_page_cache(). Swap cache is also accounted for. Each page's page_cgroup is protected with the last bit of the page_cgroup pointer, this makes handling of race conditions involving simultaneous mappings of a page easier. A reference count is kept in the page_cgroup to deal with cases where a page might be unmapped from the RSS of all tasks, but still lives in the page cache. Credits go to Vaidyanathan Srinivasan for helping with reference counting work of the page cgroup. Almost all of the page cache accounting code has help from Vaidyanathan Srinivasan. [hugh@veritas.com: fix swapoff breakage] [akpm@linux-foundation.org: fix locking] Signed-off-by:
Vaidyanathan Srinivasan <svaidy@linux.vnet.ibm.com> Signed-off-by:
Hugh Dickins <hugh@veritas.com> Signed-off-by:
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Pavel Emelianov authored
Basic setup routines, the mm_struct has a pointer to the cgroup that it belongs to and the the page has a page_cgroup associated with it. Signed-off-by:
Pavel Emelianov <xemul@openvz.org> Signed-off-by:
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Balbir Singh authored
Setup the memory cgroup and add basic hooks and controls to integrate and work with the cgroup. Signed-off-by:
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Pavel Emelianov authored
With fixes from David Rientjes <rientjes@google.com> Introduce generic structures and routines for resource accounting. Each resource accounting cgroup is supposed to aggregate it, cgroup_subsystem_state and its resource-specific members within. Signed-off-by:
David Rientjes <rientjes@google.com> Cc: Pavel Emelianov <xemul@openvz.org> Signed-off-by:
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Hugh Dickins authored
This patch precisely reverts the "swapoff: scan ptes preemptibly" patch just presented. It's a temporary measure to allow existing memory controller patches to apply without rejects: in due course they should be rendered down into one sensible patch, and this reversion disappear. Signed-off-by:
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Balbir Singh authored
Signed-off-by:
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Adrian Bunk authored
cgroup_is_releasable() and notify_on_release() should be static, not global inline. Signed-off-by:
Adrian Bunk <bunk@kernel.org> Acked-by:
Paul Menage <menage@google.com> Signed-off-by:
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Paul Menage authored
Move the calls to the cgroup subsystem destroy() methods from cgroup_rmdir() to cgroup_diput(). This allows control file reads and writes to access their subsystem state without having to be concerned with locking against cgroup destruction - the control file dentry will keep the cgroup and its subsystem state objects alive until the file is closed. The documentation is updated to reflect the changed semantics of destroy(); additionally the locking comments for destroy() and some other methods were clarified and decrustified. Signed-off-by:
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Paul Jackson authored
Simplify the space stripping code in cgroup file write. [akpm@linux-foundation.org: s/BUG_ON/BUILD_BUG_ON/] Signed-off-by:
Paul Jackson <pj@sgi.com> Acked-by:
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Paul Jackson authored
Coding style fix - one line conditionals don't get braces. Signed-off-by:
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Adrian Bunk authored
This patch removes dead code spotted by the Coverity checker (look at the "(nbytes >= PATH_MAX)" check). Signed-off-by:
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Randy Dunlap authored
This comment is not helpful (no reason given) and is incorrect. Just stick to facts that are useful regarding working on Linux. (akpm: I've used sylpheed+imap for years) Signed-off-by:
Randy Dunlap <randy.dunlap@oracle.com> Acked-by:
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Randy Dunlap authored
Make kernel-doc warn when a function/struct/union/typedef does not contain a properly formatted short description, such as: * scsi_devinfo: set up the dynamic device list or * scsi_devinfo - This warning is only generated when verbose (-v) mode is used. Also explain the -v command line option in the -h output. Signed-off-by:
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Randy Dunlap authored
Prevent duplicate output of a Description: section when there is a "blank" ("*") line between the initial function name/description line and the "Description:" header. Test case: drivers/scsi/scsi_devinfo.c::scsi_init_devinfo(). Rob Landley hit this while he was producing SCSI kernel-doc. Signed-off-by: -
J. Bruce Fields authored
People should also cc relevant mailing lists when reporting bugs. Signed-off-by:
J. Bruce Fields <bfields@citi.umich.edu> Acked-by:
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J. Bruce Fields authored
The top-level Documentation/ directory is unmanageably large, so we should take any obvious opportunities to move stuff into subdirectories. These sched-*.txt files seem an obvious easy case. Signed-off-by:
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J. Bruce Fields authored
This documentation is also vfs-related. Signed-off-by:
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J. Bruce Fields authored
I'm inclined to think dnotify belongs in filesystems/. Signed-off-by:
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Adrian Bunk authored
There's no reason for edac.txt for being at this unusual place. Signed-off-by:
Alan Cox <alan@redhat.com> Cc: Doug Thompson <norsk5@yahoo.com> Signed-off-by:
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Rob Landley authored
Add chapter IDs to z8530book.tmpl Signed-off-by:
Rob Landley <rob@landley.net> Cc: "Randy.Dunlap" <rdunlap@xenotime.net> Signed-off-by:
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Rob Landley authored
Add table IDs to videobook.tmpl Signed-off-by:
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Rob Landley authored
Add section IDs to rapidio.tmpl Signed-off-by:
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Rob Landley authored
Add missing IDs to procfs-guide.tmpl Signed-off-by:
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Rob Landley authored
Add section IDs to mtdnand.tmpl Signed-off-by:
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Rob Landley authored
Add missing section ID to lsm.tmpl Signed-off-by:
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Rob Landley authored
Add missing section IDs to genericirq.tmpl Signed-off-by:
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Alan Cox authored
This legacy define from the old buffer code is now only used in a single power pc driver than doesn't compile anyway. Signed-off-by:
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Dave Miller authored
And to go with it Dave's type checking x86 termios headers. I've updated these as the original sent by Dave had some wrong types in it. Signed-off-by:
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Randy Dunlap authored
Fix kernel-doc function prototype parsing which was exposed by vunmap() by allowing more than one '*' before the function name. Error(linux-2.6.24-mm1//mm/vmalloc.c:438): cannot understand prototype: 'struct page **vunmap(const void *addr) ' Signed-off-by:
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Erez Zadok authored
Factor out file-specific ioctl code into smaller helper functions, away from file_ioctl(). This helps code readability and also reduces indentation inside case statements. Signed-off-by:
Erez Zadok <ezk@cs.sunysb.edu> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by:
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Erez Zadok authored
Rename old vfs_ioctl to do_ioctl, because the comment above it clearly indicates that it is an internal function not to be exported to modules; therefore it should have a more traditional do_XXX name. The new do_ioctl is exported in fs.h but not to modules. Rename the old do_ioctl to vfs_ioctl because the names vfs_XXX should preferably be reserved to callable VFS functions which modules may call, as many other vfs_XXX functions already do. Export the new vfs_ioctl to GPL modules so others can use it (including Unionfs and eCryptfs). Add DocBook for new vfs_ioctl. [akpm@linux-foundation.org: fix build] Signed-off-by:
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Erez Zadok authored
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Philipp Zabel authored
The DS1WM driver incorrectly infers the IAS bit (1-wire interrupt active high) from IRQ settings. There are devices that have IAS=0 but still need the IRQ to trigger on a rising edge. With this patch, machines with DS1WM that need IAS=1 have to set .active_high=1 in the ds1wm_platform_data. Signed-off-by:
Philipp Zabel <philipp.zabel@gmail.com> Acked-by:
Evgeniy Polyakov <johnpol@2ka.mipt.ru> Acked-by:
Matt Reimer <mreimer@vpop.net> Signed-off-by:
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Pavel Emelyanov authored
The gl_owner_pid field is used to get the lock owning task by its pid, so make it in a proper manner, i.e. by using the struct pid pointer and pid_task() function. The pid_task() becomes exported for the gfs2 module. Signed-off-by:
Steven Whitehouse <swhiteho@redhat.com> Signed-off-by:
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Thadeu Lima de Souza Cascardo authored
This commit: commit 8efe4440 Author: Andres Salomon <dilinger@queued.net> Date: Wed Dec 12 14:12:56 2007 -0500 power: remove POWER_SUPPLY_PROP_CAPACITY_LEVEL Removed CAPACITY_LEVEL from every other code, leaving the array with sysfs attributes with one more entry than the number of enums in power_supply.h. This leads to some attributes containing the value of the attribute right after it. For example, temp_ambient would have the value of time_to_empty_now. In my case, I had time_to_full_avg have the value which should be in model_name, when the former was usually empty. Cc: Andres Salomon <dilinger@debian.org> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by:
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Pavel Emelyanov authored
The gl_owner_pid field is used to get the holder task by its pid and check whether the current is a holder, so make it in a proper manner, i.e. via the struct pid * manipulations. Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fsLinus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: fix p9_printfcall export 9p: transport API reorganization 9p: add remove function to trans_virtio 9p: Convert semaphore to spinlock for p9_idpool 9p: fix mmap to be read-only 9p: add support for sticky bit 9p: Fix soft lockup in virtio transport 9p: fix bug in attach-per-user 9p: block-based virtio client 9p: create transport rpc cut-thru 9p: fix bug in p9_clone_stat
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Andrew Morton authored
ERROR: "p9_printfcall" [net/9p/9pnet_virtio.ko] undefined! Signed-off-by:
Eric Van Hensbergen <ericvh@gmail.com>
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Eric Van Hensbergen authored
This merges the mux.c (including the connection interface) with trans_fd in preparation for transport API changes. Ultimately, trans_fd will need to be rewritten to clean it up and simplify the implementation, but this reorganization is viewed as the first step. Signed-off-by:
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