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2009-01-02CRED: Wrap task credential accesses in the devpts filesystemDavid Howells1-3/+3
Wrap access to task credentials so that they can be separated more easily from the task_struct during the introduction of COW creds. Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id(). Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more sense to use RCU directly rather than a convenient wrapper; these will be addressed by later patches. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02devpts: fix unused function warningAndrew Morton1-1/+1
fs/devpts/inode.c:324: warning: 'compare_init_pts_sb' defined but not used Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02devpts: Coding style clean upAlan Cox1-27/+26
Just nail the oddments now while this code is being touched Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Enable multiple instances of devptsSukadev Bhattiprolu1-7/+163
To support containers, allow multiple instances of devpts filesystem, such that indices of ptys allocated in one instance are independent of ptys allocated in other instances of devpts. But to preserve backward compatibility, enable this support for multiple instances only if: - CONFIG_DEVPTS_MULTIPLE_INSTANCES is set to Y, and - '-o newinstance' mount option is specified while mounting devpts To use multi-instance mount, a container startup script could: $ ns_exec -cm /bin/bash $ umount /dev/pts $ mount -t devpts -o newinstance lxcpts /dev/pts $ mount -o bind /dev/pts/ptmx /dev/ptmx $ /usr/sbin/sshd -p 1234 where 'ns_exec -cm /bin/bash' is calls clone() with CLONE_NEWNS flag and execs /bin/bash in the child process. A pty created by the sshd is not visible in the original mount of /dev/pts. USER-SPACE-IMPACT: - See Documentation/fs/devpts.txt (included in next patch) for user- space impact in multi-instance and mixed-mode operation. TODO: - Update mount(8), pts(4) man pages. Highlight impact of not redirecting /dev/ptmx to /dev/pts/ptmx after a multi-instance mount. Changelog[v6]: - [Dave Hansen] Use new get_init_pts_sb() interface - [Serge Hallyn] Don't bother displaying 'newinstance' in show_options - [Serge Hallyn] Use macros (PARSE_REMOUNT/PARSE_MOUNT) instead of 0/1. - [Serge Hallyn] Check error return from get_sb_single() (now get_init_pts_sb()) - devpts_pty_kill(): don't dput error dentries Changelog[v5]: - Move get_sb_ref() definition to earlier patch - Move usage info to Documentation/filesystems/devpts.txt (next patch) - Make ptmx node even in init_pts_ns, now that default mode is 0000 (defined in earlier patch, enabled here). - Cache ptmx dentry and use to update mode during remount (defined in earlier patch, enabled here). - Bugfix: explicitly ignore newinstance on remount (if newinstance was specified on remount of initial mount, it would be ignored but /proc/mounts would imply that the option was set) Changelog[v4]: - Update patch description to address H. Peter Anvin's comments - Consolidate multi-instance mode code under new config token, CONFIG_DEVPTS_MULTIPLE_INSTANCE. - Move usage-details from patch description to Documentation/fs/devpts.txt Changelog[v3]: - Rename new mount option to 'newinstance' - Create ptmx nodes only in 'newinstance' mounts - Bugfix: parse_mount_options() modifies @data but since we need to parse the @data twice (once in devpts_get_sb() and once during do_remount_sb()), parse a local copy of @data in devpts_get_sb(). (restructured code in devpts_get_sb() to fix this) Changelog[v2]: - Support both single-mount and multiple-mount semantics and provide '-onewmnt' option to select the semantics. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Define get_init_pts_sb()Sukadev Bhattiprolu1-1/+54
See comments in the function header for details. The new interface will be used in a follow-on patch. Changelog [v2]: [Dave Hansen] Replace get_sb_ref() in fs/super.c with get_init_pts_sb() and make the new interface private to devpts Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Define mknod_ptmx()Sukadev Bhattiprolu1-5/+110
/dev/ptmx is closely tied to the devpts filesystem. An open of /dev/ptmx, allocates the next pty index and the associated device shows up in the devpts fs as /dev/pts/n. Wih multiple instancs of devpts filesystem, during an open of /dev/ptmx we would be unable to determine which instance of the devpts is being accessed. So we move the 'ptmx' node into /dev/pts and use the inode of the 'ptmx' node to identify the superblock and hence the devpts instance. This patch adds ability for the kernel to internally create the [ptmx, c, 5:2] device when mounting devpts filesystem. Since the ptmx node in devpts is new and may surprise some userspace scripts, the default permissions for the new node is 0000. These permissions can be changed either using chmod or by remounting with the new '-o ptmxmode=0666' mount option. Changelog[v5]: - [Serge Hallyn bugfix]: Letting new_inode() assign inode number to ptmx can collide with hand-assigning inode numbers to ptys. So, hand-assign specific inode number to ptmx node also. - [Serge Hallyn]: Maybe safer to grab root dentry mutex while creating ptmx node - [Bugfix with Serge Hallyn] Replace lookup_one_len() in mknod_ptmx() wih d_alloc_name() (lookup during ->get_sb() locks up system). To simplify patchset, fold the ptmx_dentry patch into this. Changelog[v4]: - Change default permissions of pts/ptmx node to 0000. - Move code for ptmxmode under #ifdef CONFIG_DEVPTS_MULTIPLE_INSTANCES. Changelog[v3]: - Rename ptmx_mode to ptmxmode (for consistency with 'newinstance') Changelog[v2]: - [H. Peter Anvin] Remove mknod() system call support and create the ptmx node internally. Changelog[v1]: - Earlier version of this patch enabled creating /dev/pts/tty as well. As pointed out by Al Viro and H. Peter Anvin, that is not really necessary. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Extract option parsing to new functionSukadev Bhattiprolu1-3/+9
Move code to parse mount options into a separate function so it can (later) be shared between mount and remount operations. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Per-mount 'config' objectSukadev Bhattiprolu1-18/+27
With support for multiple mounts of devpts, the 'config' structure really represents per-mount options rather than config parameters. Rename 'config' structure to 'pts_mount_opts' and store it in the super-block. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Per-mount allocated_ptysSukadev Bhattiprolu1-7/+48
To enable multiple mounts of devpts, 'allocated_ptys' must be a per-mount variable rather than a global variable. Move 'allocated_ptys' into the super_block's s_fs_info. Changelog[v2]: Define and use DEVPTS_SB() wrapper. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2009-01-02Remove devpts_root globalSukadev Bhattiprolu1-9/+20
Remove the 'devpts_root' global variable and find the root dentry using the super_block. The super-block can be found from the device inode, using the new wrapper, pts_sb_from_inode(). Changelog: This patch is based on an earlier patchset from Serge Hallyn and Matt Helsley. Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com> Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-12-31Merge branch 'for-linus' of ↵Linus Torvalds44-292/+385
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (34 commits) nfsd race fixes: jfs nfsd race fixes: reiserfs nfsd race fixes: ext4 nfsd race fixes: ext3 nfsd race fixes: ext2 nfsd/create race fixes, infrastructure filesystem notification: create fs/notify to contain all fs notification fs/block_dev.c: __read_mostly improvement and sb_is_blkdev_sb utilization kill ->dir_notify() filp_cachep can be static in fs/file_table.c fix f_count description in Documentation/filesystems/files.txt make INIT_FS use the __RW_LOCK_UNLOCKED initialization take init_fs to saner place kill vfs_permission pass a struct path * to may_open kill walk_init_root remove incorrect comment in inode_permission expand some comments (d_path / seq_path) correct wrong function name of d_put in kernel document and source comment fix switch_names() breakage in short-to-short case ...
2008-12-31nfsd race fixes: jfsDave Kleikamp2-16/+37
jfs version of Al Viro's nfsd race patches Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31nfsd race fixes: reiserfsAl Viro2-5/+18
... and the same for reiserfs. The difference here is that we need insert_inode_locked4() to match iget5_locked(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31nfsd race fixes: ext4Al Viro2-2/+18
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31nfsd race fixes: ext3Al Viro2-2/+19
ext3 analog of the previous patch Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31nfsd race fixes: ext2Al Viro2-2/+19
* make ext2_new_inode() put the inode into icache in locked state * do not unlock until the inode is fully set up; otherwise nfsd might pick it in half-baked state. * make sure that ext2_new_inode() does *not* lead to two inodes with the same inumber hashed at the same time; otherwise a bogus fhandle coming from nfsd might race with inode creation: nfsd: iget_locked() creates inode nfsd: try to read from disk, block on that. ext2_new_inode(): allocate inode with that inumber ext2_new_inode(): insert it into icache, set it up and dirty ext2_write_inode(): get the relevant part of inode table in cache, set the entry for our inode (and start writing to disk) nfsd: get CPU again, look into inode table, see nice and sane on-disk inode, set the in-core inode from it oops - we have two in-core inodes with the same inumber live in icache, both used for IO. Welcome to fs corruption... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31nfsd/create race fixes, infrastructureAl Viro1-0/+59
new helpers - insert_inode_locked() and insert_inode_locked4(). Hash new inode, making sure that there's no such inode in icache already. If there is and it does not end up unhashed (as would happen if we have nfsd trying to resolve a bogus fhandle), fail. Otherwise insert our inode into hash and succeed. In either case have i_state set to new+locked; cleanup ends up being simpler with such calling conventions. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31filesystem notification: create fs/notify to contain all fs notificationEric Paris11-42/+46
Creating a generic filesystem notification interface, fsnotify, which will be used by inotify, dnotify, and eventually fanotify is really starting to clutter the fs directory. This patch simply moves inotify and dnotify into fs/notify/inotify and fs/notify/dnotify respectively to make both current fs/ and future notification tidier. Signed-off-by: Eric Paris <eparis@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31fs/block_dev.c: __read_mostly improvement and sb_is_blkdev_sb utilizationDenis ChengRq1-4/+5
- iget5_locked in bdget really needs blockdev_superblock, instead of bd_mnt, so bd_mnt could be just a local variable; - blockdev_superblock really needs __read_mostly, while local var bd_mnt not; - make use of sb_is_blkdev_sb in bd_forget, instead of direct reference to blockdev_superblock. Signed-off-by: Denis ChengRq <crquan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31kill ->dir_notify()Al Viro6-136/+1
Remove the hopelessly misguided ->dir_notify(). The only instance (cifs) has been broken by design from the very beginning; the objects it creates are never destroyed, keep references to struct file they can outlive, nothing that could possibly evict them exists on close(2) path *and* no locking whatsoever is done to prevent races with close(), should the previous, er, deficiencies someday be dealt with. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31filp_cachep can be static in fs/file_table.cEric Dumazet2-7/+9
Instead of creating the "filp" kmem_cache in vfs_caches_init(), we can do it a litle be later in files_init(), so that filp_cachep is static to fs/file_table.c Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31make INIT_FS use the __RW_LOCK_UNLOCKED initializationSteven Rostedt1-1/+1
[AV: rediffed on top of unification of init_fs] Initialization of init_fs still uses the deprecated RW_LOCK_UNLOCKED macro. This patch updates it to use the __RW_LOCK_UNLOCKED(lock) macro. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31take init_fs to saner placeAl Viro1-0/+7
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31kill vfs_permissionChristoph Hellwig2-20/+16
With all the nameidata removal there's no point anymore for this helper. Of the three callers left two will go away with the next lookup series anyway. Also add proper kerneldoc to inode_permission as this is the main permission check routine now. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31pass a struct path * to may_openChristoph Hellwig2-9/+10
No need for the nameidata in may_open - a struct path is enough. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31kill walk_init_rootChristoph Hellwig1-13/+8
walk_init_root is a tiny helper that is marked __always_inline, has just one caller and an unused argument. Just merge it into the caller. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31remove incorrect comment in inode_permissionChristoph Hellwig1-1/+0
We now pass on all MAY_ flags to the filesystems permission routines, so remove the comment stating the contrary. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31expand some comments (d_path / seq_path)Arjan van de Ven2-4/+14
Explain that you really need to use the return value of d_path rather than the buffer you passed into it. Also fix the comment for seq_path(), the function arguments changed recently but the comment hadn't been updated in sync. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31correct wrong function name of d_put in kernel document and source commentZhaolei1-1/+1
no function named d_put(), it should be dput(). Impact: fix document and comment, no functionality changed Signed-off-by: Zhao Lei <zhaolei@cn.fuijtsu.com> Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31fix switch_names() breakage in short-to-short caseAl Viro1-2/+3
We want ->name.len to match the resulting name on *both* source and target Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31befs: ensure fast symlinks are NUL-terminatedDuane Griffin1-1/+4
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Sergey S. Kostyliov <rathamahata@php4.ru> Signed-off-by: Duane Griffin <duaneg@dghda.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31freevxfs: ensure fast symlinks are NUL-terminatedDuane Griffin1-1/+3
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Duane Griffin <duaneg@dghda.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31sysv: ensure fast symlinks are NUL-terminatedDuane Griffin1-1/+5
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Christoph Hellwig <hch@infradead.org> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Duane Griffin <duaneg@dghda.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31ext4: ensure fast symlinks are NUL-terminatedDuane Griffin1-2/+5
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Theodore Ts'o <tytso@mit.edu> Cc: adilger@sun.com Cc: linux-ext4@vger.kernel.org Signed-off-by: Duane Griffin <duaneg@dghda.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31ext3: ensure fast symlinks are NUL-terminatedDuane Griffin1-2/+5
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Stephen Tweedie <sct@redhat.com> Cc: linux-ext4@vger.kernel.org Signed-off-by: Duane Griffin <duaneg@dghda.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31ext2: ensure fast symlinks are NUL-terminatedDuane Griffin1-2/+5
Ensure fast symlink targets are NUL-terminated, even if corrupted on-disk. Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Duane Griffin <duaneg@dghda.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31vfs: ensure page symlinks are NUL-terminatedDuane Griffin1-2/+5
On-disk data corruption could cause a page link to have its i_size set to PAGE_SIZE (or a multiple thereof) and its contents all non-NUL. NUL-terminate the link name to ensure this doesn't cause further problems for the kernel. Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Duane Griffin <duaneg@dghda.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31eCryptfs: check readlink result was not an error before using itDuane Griffin1-1/+2
The result from readlink is being used to index into the link name buffer without checking whether it is a valid length. If readlink returns an error this will fault or cause memory corruption. Cc: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Cc: Dustin Kirkland <kirkland@canonical.com> Cc: ecryptfs-devel@lists.launchpad.net Signed-off-by: Duane Griffin <duaneg@dghda.com> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Acked-by: Tyler Hicks <tyhicks@linux.vnet.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31fs/namespace.c: drop code after returnJulia Lawall1-1/+1
The extra semicolon serves no purpose. Signed-off-by: Julia Lawall <julia@diku.dk> Reviewed-by: Richard Genoud <richard.genoud@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31shrink struct dentryNick Piggin2-13/+19
struct dentry is one of the most critical structures in the kernel. So it's sad to see it going neglected. With CONFIG_PROFILING turned on (which is probably the common case at least for distros and kernel developers), sizeof(struct dcache) == 208 here (64-bit). This gives 19 objects per slab. I packed d_mounted into a hole, and took another 4 bytes off the inline name length to take the padding out from the end of the structure. This shinks it to 200 bytes. I could have gone the other way and increased the length to 40, but I'm aiming for a magic number, read on... I then got rid of the d_cookie pointer. This shrinks it to 192 bytes. Rant: why was this ever a good idea? The cookie system should increase its hash size or use a tree or something if lookups are a problem. Also the "fast dcookie lookups" in oprofile should be moved into the dcookie code -- how can oprofile possibly care about the dcookie_mutex? It gets dropped after get_dcookie() returns so it can't be providing any sort of protection. At 192 bytes, 21 objects fit into a 4K page, saving about 3MB on my system with ~140 000 entries allocated. 192 is also a multiple of 64, so we get nice cacheline alignment on 64 and 32 byte line systems -- any given dentry will now require 3 cachelines to touch all fields wheras previously it would require 4. I know the inline name size was chosen quite carefully, however with the reduction in cacheline footprint, it should actually be just about as fast to do a name lookup for a 36 character name as it was before the patch (and faster for other sizes). The memory footprint savings for names which are <= 32 or > 36 bytes long should more than make up for the memory cost for 33-36 byte names. Performance is a feature... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31fs: reorder struct inotify_device on 64bits to remove paddingRichard Kennedy1-1/+1
Reorder struct inotify_device to remove 8 bytes of padding on 64bit builds, reducing size to 128 bytes . Therefore allocating from a smaller slab & using one fewer cachelines. Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk> ---- Hi, patch against 2.6.28-rc7. built & tested on AMDX2 desktop. I've not been able to send this to the listed inotify maintainers, I just get mail failures. So I guessed filesystem was the best home for it, hope that's ok. regards Richard Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31introduce new LSM hooks where vfsmount is available.Kentaro Takeda2-0/+41
Add new LSM hooks for path-based checks. Call them on directory-modifying operations at the points where we still know the vfsmount involved. Signed-off-by: Kentaro Takeda <takedakn@nttdata.co.jp> Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Toshiharu Harada <haradats@nttdata.co.jp> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-12-31Merge branch 'irq-fixes-for-linus-4' of ↵Linus Torvalds1-10/+1
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-fixes-for-linus-4' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sparseirq: move __weak symbols into separate compilation unit sparseirq: work around __weak alias bug sparseirq: fix hang with !SPARSE_IRQ sparseirq: set lock_class for legacy irq when sparse_irq is selected sparseirq: work around compiler optimizing away __weak functions sparseirq: fix desc->lock init sparseirq: do not printk when migrating IRQ descriptors sparseirq: remove duplicated arch_early_irq_init() irq: simplify for_each_irq_desc() usage proc: remove ifdef CONFIG_SPARSE_IRQ from stat.c irq: for_each_irq_desc() move to irqnr.h hrtimer: remove #include <linux/irq.h>
2008-12-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6Linus Torvalds3-2/+3
* git://git.kernel.org/pub/scm/linux/kernel/git/hirofumi/fatfs-2.6: fat: make sure to set d_ops in fat_get_parent fat: fix duplicate addition of ->llseek handler fat: drop negative dentry on rename() path
2008-12-30Merge branch 'for-linus' of git://oss.sgi.com/xfs/xfsLinus Torvalds109-12845/+10486
* 'for-linus' of git://oss.sgi.com/xfs/xfs: (184 commits) [XFS] Fix race in xfs_write() between direct and buffered I/O with DMAPI [XFS] handle unaligned data in xfs_bmbt_disk_get_all [XFS] avoid memory allocations in xfs_fs_vcmn_err [XFS] Fix speculative allocation beyond eof [XFS] Remove XFS_BUF_SHUT() and friends [XFS] Use the incore inode size in xfs_file_readdir() [XFS] set b_error from bio error in xfs_buf_bio_end_io [XFS] use inode_change_ok for setattr permission checking [XFS] add a FMODE flag to make XFS invisible I/O less hacky [XFS] resync headers with libxfs [XFS] simplify projid check in xfs_rename [XFS] replace b_fspriv with b_mount [XFS] Remove unused tracing code [XFS] Remove unnecessary assertion [XFS] Remove unused variable in ktrace_free() [XFS] Check return value of xfs_buf_get_noaddr() [XFS] Fix hang after disallowed rename across directory quota domains [XFS] Fix compile with CONFIG_COMPAT enabled move inode tracing out of xfs_vnode. move vn_iowait / vn_iowake into xfs_aops.c ...
2008-12-30Merge git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds22-1293/+1492
* git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (70 commits) fs/nfs/nfs4proc.c: make nfs4_map_errors() static rpc: add service field to new upcall rpc: add target field to new upcall nfsd: support callbacks with gss flavors rpc: allow gss callbacks to client rpc: pass target name down to rpc level on callbacks nfsd: pass client principal name in rsc downcall rpc: implement new upcall rpc: store pointer to pipe inode in gss upcall message rpc: use count of pipe openers to wait for first open rpc: track number of users of the gss upcall pipe rpc: call release_pipe only on last close rpc: add an rpc_pipe_open method rpc: minor gss_alloc_msg cleanup rpc: factor out warning code from gss_pipe_destroy_msg rpc: remove unnecessary assignment NFS: remove unused status from encode routines NFS: increment number of operations in each encode routine NFS: fix comment placement in nfs4xdr.c NFS: fix tabs in nfs4xdr.c ...
2008-12-30Merge branch 'for-linus' of ↵Linus Torvalds1-1/+7
git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6: jfs: ensure symlinks are NUL-terminated
2008-12-30Merge branch 'for-2.6.29' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds5-130/+319
* 'for-2.6.29' of git://git.kernel.dk/linux-2.6-block: (43 commits) bio: get rid of bio_vec clearing bounce: don't rely on a zeroed bio_vec list cciss: simplify parameters to deregister_disk function cfq-iosched: fix race between exiting queue and exiting task loop: Do not call loop_unplug for not configured loop device. loop: Flush possible running bios when loop device is released. alpha: remove dead BIO_VMERGE_BOUNDARY Get rid of CONFIG_LSF block: make blk_softirq_init() static block: use min_not_zero in blk_queue_stack_limits block: add one-hit cache for disk partition lookup cfq-iosched: remove limit of dispatch depth of max 4 times quantum nbd: tell the block layer that it is not a rotational device block: get rid of elevator_t typedef aio: make the lookup_ioctx() lockless bio: add support for inlining a number of bio_vecs inside the bio bio: allow individual slabs in the bio_set bio: move the slab pointer inside the bio_set bio: only mempool back the largest bio_vec slab cache block: don't use plugging on SSD devices ...
2008-12-30Merge branch 'irq-core-for-linus' of ↵Linus Torvalds1-4/+12
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, sparseirq: clean up Kconfig entry x86: turn CONFIG_SPARSE_IRQ off by default sparseirq: fix numa_migrate_irq_desc dependency and comments sparseirq: add kernel-doc notation for new member in irq_desc, -v2 locking, irq: enclose irq_desc_lock_class in CONFIG_LOCKDEP sparseirq, xen: make sure irq_desc is allocated for interrupts sparseirq: fix !SMP building, #2 x86, sparseirq: move irq_desc according to smp_affinity, v7 proc: enclose desc variable of show_stat() in CONFIG_SPARSE_IRQ sparse irqs: add irqnr.h to the user headers list sparse irqs: handle !GENIRQ platforms sparseirq: fix !SMP && !PCI_MSI && !HT_IRQ build sparseirq: fix Alpha build failure sparseirq: fix typo in !CONFIG_IO_APIC case x86, MSI: pass irq_cfg and irq_desc x86: MSI start irq numbering from nr_irqs_gsi x86: use NR_IRQS_LEGACY sparse irq_desc[] array: core kernel and x86 changes genirq: record IRQ_LEVEL in irq_desc[] irq.h: remove padding from irq_desc on 64bits
2008-12-30Merge branch 'timers-core-for-linus' of ↵Linus Torvalds1-5/+3
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: hrtimers: fix warning in kernel/hrtimer.c x86: make sure we really have an hpet mapping before using it x86: enable HPET on Fujitsu u9200 linux/timex.h: cleanup for userspace posix-timers: simplify de_thread()->exit_itimers() path posix-timers: check ->it_signal instead of ->it_pid to validate the timer posix-timers: use "struct pid*" instead of "struct task_struct*" nohz: suppress needless timer reprogramming clocksource, acpi_pm.c: put acpi_pm_read_slow() under CONFIG_PCI nohz: no softirq pending warnings for offline cpus hrtimer: removing all ur callback modes, fix hrtimer: removing all ur callback modes, fix hotplug hrtimer: removing all ur callback modes x86: correct link to HPET timer specification rtc-cmos: export second NVRAM bank Fixed up conflicts in sound/drivers/pcsp/pcsp.c and sound/core/hrtimer.c manually.
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