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2008-10-23[patch] vfs: make security_inode_setattr() calling consistentMiklos Szeredi
Call security_inode_setattr() consistetly before inode_change_ok(). It doesn't make sense to try to "optimize" the i_op->setattr == NULL case, as most filesystem do define their own setattr function. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2008-10-23[patch 1/3] FS_MBCACHE: don't needlessly make it built-inAdrian Bunk
Assume you have: - one or more of ext2/3/4 statically built into your kernel - none of these with extended attributes enabled and - want to add onother one of ext2/3/4 modular and with extended attributes enabled then you currently have to reboot to use it since this results in CONFIG_FS_MBCACHE=y. That's not a common issue, but I just ran into it and since there's no reason to get a built-in mbcache in this case this patch fixes it. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Andreas Gruenbacher <agruen@suse.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2008-10-23[PATCH] move executable checking into ->permission()Miklos Szeredi
For execute permission on a regular files we need to check if file has any execute bits at all, regardless of capabilites. This check is normally performed by generic_permission() but was also added to the case when the filesystem defines its own ->permission() method. In the latter case the filesystem should be responsible for performing this check. Move the check from inode_permission() inside filesystems which are not calling generic_permission(). Create a helper function execute_ok() that returns true if the inode is a directory or if any execute bits are present in i_mode. Also fix up the following code: - coda control file is never executable - sysctl files are never executable - hfs_permission seems broken on MAY_EXEC, remove - hfsplus_permission is eqivalent to generic_permission(), remove Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2008-10-23[PATCH] fs/dcache.c: update comment of d_validate()Qinghuang Feng
Parameters @hash and @len have been removed since 2.4.3, now just to delete them. Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com>
2008-10-23[RFC PATCH] touch_mnt_namespace when the mount flags changeDan Williams
Daemons that need to be launched while the rootfs is read-only can now poll /proc/mounts to be notified when their O_RDWR requests may no longer end in EROFS. Cc: Kay Sievers <kay.sievers@vrfy.org> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Dan Williams <dan.j.williams@intel.com>
2008-10-23[PATCH] reiserfs: add missing llseek methodChristoph Hellwig
Reiserfs currently doesn't set a llseek method for regular files, which means it will fall back to default_llseek. This means no one can seek beyond 2 Gigabytes on reiserfs, and that there's not protection vs the i_size updates from writers. Signed-off-by: Christoph Hellwig <hch@lst.de>
2008-10-23[PATCH] fix ->llseek for more directoriesChristoph Hellwig
With this patch all directory fops instances that have a readdir that doesn't take the BKL are switched to generic_file_llseek. Signed-off-by: Christoph Hellwig <hch@lst.de>
2008-10-23[PATCH vfs-2.6 6/6] vfs: add LOOKUP_RENAME_TARGET intentOGAWA Hirofumi
This adds LOOKUP_RENAME_TARGET intent for lookup of rename destination. LOOKUP_RENAME_TARGET is going to be used like LOOKUP_CREATE. But since the destination of rename() can be existing directory entry, so it has a difference. Although that difference doesn't matter in my usage, this tells it to user of this intent. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23[PATCH vfs-2.6 5/6] vfs: remove LOOKUP_PARENT from non LOOKUP_PARENT lookupOGAWA Hirofumi
lookup_hash() with LOOKUP_PARENT is bogus. And this prepares to add new intent on those path. The user of LOOKUP_PARENT intent is nfs only, and it checks whether nd->flags has LOOKUP_CREATE or LOOKUP_OPEN, so the result is same. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23[PATCH vfs-2.6 4/6] vfs: remove unnecessary fsnotify_d_instantiate()OGAWA Hirofumi
This calls d_move(), so fsnotify_d_instantiate() is unnecessary like rename path. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23[PATCH vfs-2.6 3/6] vfs: add __d_instantiate() helperOGAWA Hirofumi
This adds __d_instantiate() for users which is already taking dcache_lock, and replace with it. The part of d_add_ci() isn't equivalent. But it should be needed fsnotify_d_instantiate() actually, because the path is to add the inode to negative dentry. fsnotify_d_instantiate() should be called after change from negative to positive. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23[PATCH vfs-2.6 2/6] vfs: add d_ancestor()OGAWA Hirofumi
This adds d_ancestor() instead of d_isparent(), then use it. If new_dentry == old_dentry, is_subdir() returns 1, looks strange. "new_dentry == old_dentry" is not subdir obviously. But I'm not checking callers for now, so this keeps current behavior. Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23[PATCH vfs-2.6 1/6] vfs: replace parent == dentry->d_parent by IS_ROOT()OGAWA Hirofumi
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
2008-10-23[PATCH] get rid of on-stack dentry in udfAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH 2/2] anondev: switch to IDAAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-10-23[PATCH 1/2] anondev: init IDR staticallyAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-10-23[JFFS2] Use d_splice_alias() not d_add() in jffs2_lookup()David Woodhouse
Now that JFFS2 can be exported by NFS, we need to get this right. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] Optimise NFS readdir hack slightly.David Woodhouse
Avoid calling the underlying ->readdir() again when we reached the end already; keep going round the loop only if we stopped due to our own buffer being full. [AV: tidy the things up a bit, while we are there] Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] prepare vfs_readdir() callers to returning filldir resultAl Viro
It's not the final state, but it allows moving ->readdir() instances to passing filldir return value to caller of vfs_readdir(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] get rid of on-stack dentry in ext2_get_parent()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] get rid of on-stack fake dentry in ext3_get_parent()Al Viro
Better pass parent and qstr to ext3_find_entry() explicitly than use such kludges, especially since the stack footprint is nasty enough and we have every chance to be deep in call chain. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[JFFS2] Reinstate NFS exportabilityDavid Woodhouse
Now that the readdir/lookup deadlock issues have been dealt with, we can export JFFS2 file systems again. (For now, you have to specify fsid manually; we should add a method to the export_ops to handle that too.) Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] Remove XFS buffered readdir hackDavid Woodhouse
Now that we've moved the readdir hack to the nfsd code, we can remove the local version from the XFS code. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] Copy XFS readdir hack into nfsd code.David Woodhouse
Some file systems with their own internal locking have problems with the way that nfsd calls the ->lookup() method from within a filldir function called from their ->readdir() method. The recursion back into the file system code can cause deadlock. XFS has a fairly hackish solution to this which involves doing the readdir() into a locally-allocated buffer, then going back through it calling the filldir function afterwards. It's not ideal, but it works. It's particularly suboptimal because XFS does this for local file systems too, where it's completely unnecessary. Copy this hack into the NFS code where it can be used only for NFS export. In response to feedback, use it unconditionally rather than only for the affected file systems. Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] Factor out nfsd_do_readdir() into its own functionDavid Woodhouse
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] reduce the stack footprint of exportfs_decode_fh()Al Viro
no need to have _two_ 256-byte arrays on stack... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] kill d_alloc_anonChristoph Hellwig
Remove d_alloc_anon now that no users are left. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] switch all filesystems over to d_obtain_aliasChristoph Hellwig
Switch all users of d_alloc_anon to d_obtain_alias. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] new helper: d_obtain_aliasChristoph Hellwig
The calling conventions of d_alloc_anon are rather unfortunate for all users, and it's name is not very descriptive either. Add d_obtain_alias as a new exported helper that drops the inode reference in the failure case, too and allows to pass-through NULL pointers and inodes to allow for tail-calls in the export operations. Incidentally this helper already existed as a private function in libfs.c as exportfs_d_alloc so kill that one and switch the callers to d_obtain_alias. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] generic_file_llseek tidyupsChristoph Hellwig
Add kerneldoc for generic_file_llseek and generic_file_llseek_unlocked, use sane variable names and unclutter the code. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] tidy up chrdev_openChristoph Hellwig
Use a single goto label for chrdev_put + return error cases. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] hpfs: cleanup ->setattrChristoph Hellwig
Reformat hpfs_notify_change to standard kernel style to make it readable and rename it to hpfs_setattr as that's what the method is called. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] make O_EXCL in nd->intent.flags visible in nd->flagsAl Viro
New flag: LOOKUP_EXCL. Set before doing the final step of pathname resolution on the paths that have LOOKUP_CREATE and O_EXCL. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] get rid of path_lookup_create()Al Viro
... and don't pass bogus flags when we are just looking for parent. Fold __path_lookup_intent_open() into path_lookup_open() while we are at it; that's the only remaining caller. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] assorted path_lookup() -> kern_path() conversionsAl Viro
more nameidata eviction Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] switch nfsd to kern_path()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] sanitize svc_export_parse()Al Viro
clean up the exit paths, get rid of nameidata Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] switch quota_on-related stuff to kern_path()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] no need for noinline stuff in fs/namespace.c anymoreAl Viro
Stack footprint from hell had been due to many struct nameidata in there. No more. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] finally get rid of nameidata in namespace.cAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-23[PATCH] new helper - kern_path()Al Viro
Analog of lookup_path(), takes struct path *. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-10-20binfmt_elf_fdpic: Update for cputime changes.Paul Mundt
Commit f06febc96ba8e0af80bcc3eaec0a109e88275fac ("timers: fix itimer/ many thread hang") introduced a new task_cputime interface and subsequently only converted binfmt_elf over to it. This results in the build for binfmt_elf_fdpic blowing up given that p->signal->{u,s}time have disappeared from underneath us. Apply the same trivial fix from binfmt_elf to binfmt_elf_fdpic. Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20Merge branch 'genirq-v28-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip This merges branches irq/genirq, irq/sparseirq-v4, timers/hpet-percpu and x86/uv. The sparseirq branch is just preliminary groundwork: no sparse IRQs are actually implemented by this tree anymore - just the new APIs are added while keeping the old way intact as well (the new APIs map 1:1 to irq_desc[]). The 'real' sparse IRQ support will then be a relatively small patch ontop of this - with a v2.6.29 merge target. * 'genirq-v28-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (178 commits) genirq: improve include files intr_remapping: fix typo io_apic: make irq_mis_count available on 64-bit too genirq: fix name space collisions of nr_irqs in arch/* genirq: fix name space collision of nr_irqs in autoprobe.c genirq: use iterators for irq_desc loops proc: fixup irq iterator genirq: add reverse iterator for irq_desc x86: move ack_bad_irq() to irq.c x86: unify show_interrupts() and proc helpers x86: cleanup show_interrupts genirq: cleanup the sparseirq modifications genirq: remove artifacts from sparseirq removal genirq: revert dynarray genirq: remove irq_to_desc_alloc genirq: remove sparse irq code genirq: use inline function for irq_to_desc genirq: consolidate nr_irqs and for_each_irq_desc() x86: remove sparse irq from Kconfig genirq: define nr_irqs for architectures with GENERIC_HARDIRQS=n ...
2008-10-20Merge branch 'v28-timers-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'v28-timers-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (36 commits) fix documentation of sysrq-q really Fix documentation of sysrq-q timer_list: add base address to clock base timer_list: print cpu number of clockevents device timer_list: print real timer address NOHZ: restart tick device from irq_enter() NOHZ: split tick_nohz_restart_sched_tick() NOHZ: unify the nohz function calls in irq_enter() timers: fix itimer/many thread hang, fix timers: fix itimer/many thread hang, v3 ntp: improve adjtimex frequency rounding timekeeping: fix rounding problem during clock update ntp: let update_persistent_clock() sleep hrtimer: reorder struct hrtimer to save 8 bytes on 64bit builds posix-timers: lock_timer: make it readable posix-timers: lock_timer: kill the bogus ->it_id check posix-timers: kill ->it_sigev_signo and ->it_sigev_value posix-timers: sys_timer_create: cleanup the error handling posix-timers: move the initialization of timer->sigq from send to create path posix-timers: sys_timer_create: simplify and s/tasklist/rcu/ ... Fix trivial conflicts due to sysrq-q description clahes in Documentation/sysrq.txt and drivers/char/sysrq.c
2008-10-20Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: fuse: implement nonseekable open fuse: add include protectors fuse: config description improvement fuse: add missing fuse_request_free fuse: fix SEEK_END incorrectness
2008-10-20fs/Kconfig: move ext2, ext3, ext4, JBD, JBD2 outAlexey Dobriyan
Use fs/*/Kconfig more, which is good because everything related to one filesystem is in one place and fs/Kconfig is quite fat. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-20Merge branch 'for-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: (26 commits) 9p: add more conservative locking 9p: fix oops in protocol stat parsing error path. 9p: fix device file handling 9p: Improve debug support 9p: eliminate depricated conv functions 9p: rework client code to use new protocol support functions 9p: remove unnecessary tag field from p9_req_t structure 9p: remove 9p fcall debug prints 9p: add new protocol support code 9p: encapsulate version function 9p: move dirread to fs layer 9p: adjust 9p vfs write operation 9p: move readn meta-function from client to fs layer 9p: consolidate read/write functions 9p: drop broken unused error path from p9_conn_create() 9p: make rpc code common and rework flush code 9p: use the rcall structure passed in the request in trans_fd read_work 9p: apply common request code to trans_fd 9p: apply common tagpool handling to trans_fd 9p: move request management to client code ...
2008-10-20Merge git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds
* git://git.linux-nfs.org/projects/trondmy/nfs-2.6: NFS: use correct fs type for v4 submounts and referrals Make nfs_file_cred more robust. NFS: Enable NFSv4 callback server to listen on AF_INET6 sockets
2008-10-20Merge branch 'linux-next' of git://git.infradead.org/ubifs-2.6Linus Torvalds
* 'linux-next' of git://git.infradead.org/ubifs-2.6: (25 commits) UBIFS: fix ubifs_compress commentary UBIFS: amend printk UBIFS: do not read unnecessary bytes when unpacking bits UBIFS: check buffer length when scanning for LPT nodes UBIFS: correct condition to eliminate unecessary assignment UBIFS: add more debugging messages for LPT UBIFS: fix bulk-read handling uptodate pages UBIFS: improve garbage collection UBIFS: allow for sync_fs when read-only UBIFS: commit on sync_fs UBIFS: correct comment for commit_on_unmount UBIFS: update dbg_dump_inode UBIFS: fix commentary UBIFS: fix races in bit-fields UBIFS: ensure data read beyond i_size is zeroed out correctly UBIFS: correct key comparison UBIFS: use bit-fields when possible UBIFS: check data CRC when in error state UBIFS: improve znode splitting rules UBIFS: add no_chk_data_crc mount option ...
2008-10-20Merge git://git.infradead.org/mtd-2.6Linus Torvalds
* git://git.infradead.org/mtd-2.6: (69 commits) Revert "[MTD] m25p80.c code cleanup" [MTD] [NAND] GPIO driver depends on ARM... for now. [MTD] [NAND] sh_flctl: fix compile error [MTD] [NOR] AT49BV6416 has swapped erase regions [MTD] [NAND] GPIO NAND flash driver [MTD] cmdlineparts documentation change - explain where mtd-id comes from [MTD] cfi_cmdset_0002.c: Add Macronix CFI V1.0 TopBottom detection [MTD] [NAND] Fix compilation warnings in drivers/mtd/nand/cs553x_nand.c [JFFS2] Write buffer offset adjustment for NOR-ECC (Sibley) flash [MTD] mtdoops: Fix a bug where block may not be erased [MTD] mtdoops: Add a magic number to logged kernel oops [MTD] mtdoops: Fix an off by one error [JFFS2] Correct parameter names of jffs2_compress() in comments [MTD] [NAND] sh_flctl: add support for Renesas SuperH FLCTL [MTD] [NAND] Bug on atmel_nand HW ECC : OOB info not correctly written [MTD] [MAPS] Remove unused variable after ROM API cleanup. [MTD] m25p80.c extended jedec support (v2) [MTD] remove unused mtd parameter in of_mtd_parse_partitions() [MTD] [NAND] remove dead Kconfig associated with !CONFIG_PPC_MERGE [MTD] [NAND] driver extension to support NAND on TQM85xx modules ...
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