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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-asyncLinus Torvalds2009-01-072-7/+23
|\ | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/arjan/linux-2.6-async: async: don't do the initcall stuff post boot bootchart: improve output based on Dave Jones' feedback async: make the final inode deletion an asynchronous event fastboot: Make libata initialization even more async fastboot: make the libata port scan asynchronous fastboot: make scsi probes asynchronous async: Asynchronous function calls to speed up kernel boot
| * async: make the final inode deletion an asynchronous eventArjan van de Ven2009-01-072-7/+23
| | | | | | | | | | | | | | this makes "rm -rf" on a (names cached) kernel tree go from 11.6 to 8.6 seconds on an ext3 filesystem Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
* | Merge branch 'proc-linus' of ↵Linus Torvalds2009-01-075-118/+134
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc * 'proc-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc: proc: remove write-only variable in proc_pident_lookup() proc: fix sparse warning proc: add /proc/*/stack proc: remove '##' usage proc: remove useless WARN_ONs proc: stop using BKL
| * | proc: remove write-only variable in proc_pident_lookup()WANG Cong2009-01-051-2/+0
| | | | | | | | | | | | | | | Signed-off-by: WANG Cong <wangcong@zeuux.org> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
| * | proc: fix sparse warningHannes Eder2009-01-051-2/+2
| | | | | | | | | | | | | | | | | | | | | fs/proc/base.c:312:4: warning: do-while statement is not a compound statement Signed-off-by: Hannes Eder <hannes@hanneseder.net> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
| * | proc: add /proc/*/stackKen Chen2009-01-051-0/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | /proc/*/stack adds the ability to query a task's stack trace. It is more useful than /proc/*/wchan as it provides full stack trace instead of single depth. Example output: $ cat /proc/self/stack [<c010a271>] save_stack_trace_tsk+0x17/0x35 [<c01827b4>] proc_pid_stack+0x4a/0x76 [<c018312d>] proc_single_show+0x4a/0x5e [<c016bdec>] seq_read+0xf3/0x29f [<c015a004>] vfs_read+0x6d/0x91 [<c015a0c1>] sys_read+0x3b/0x60 [<c0102eda>] syscall_call+0x7/0xb [<ffffffff>] 0xffffffff [add save_stack_trace_tsk() on mips, ACK Ralf --adobriyan] Signed-off-by: Ken Chen <kenchen@google.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
| * | proc: remove '##' usageAlexey Dobriyan2009-01-051-93/+90
| | | | | | | | | | | | | | | | | | Inability to jump to /proc/*/foo handlers with ctags is annoying. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
| * | proc: remove useless WARN_ONsAlexey Dobriyan2009-01-051-4/+0
| | | | | | | | | | | | | | | | | | NULL "struct inode *" means VFS passed NULL inode to ->open. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
| * | proc: stop using BKLAlexey Dobriyan2009-01-054-17/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are four BKL users in proc: de_put(), proc_lookup_de(), proc_readdir_de(), proc_root_readdir(), 1) de_put() ----------- de_put() is classic atomic_dec_and_test() refcount wrapper -- no BKL needed. BKL doesn't matter to possible refcount leak as well. 2) proc_lookup_de() ------------------- Walking PDE list is protected by proc_subdir_lock(), proc_get_inode() is potentially blocking, all callers of proc_lookup_de() eventually end up from ->lookup hooks which is protected by directory's ->i_mutex -- BKL doesn't protect anything. 3) proc_readdir_de() -------------------- "." and ".." part doesn't need BKL, walking PDE list is under proc_subdir_lock, calling filldir callback is potentially blocking because it writes to luserspace. All proc_readdir_de() callers eventually come from ->readdir hook which is under directory's ->i_mutex -- BKL doesn't protect anything. 4) proc_root_readdir_de() ------------------------- proc_root_readdir_de is ->readdir hook, see (3). Since readdir hooks doesn't use BKL anymore, switch to generic_file_llseek, since it also takes directory's i_mutex. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixesLinus Torvalds2009-01-073-2/+3
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: GFS2: Fix typo in gfs_page_mkwrite() GFS2: LSF and LBD are now one and the same GFS2: Set GFP_NOFS when allocating page on write
| * | | GFS2: Fix typo in gfs_page_mkwrite()Benjamin Marzinski2009-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a typo in gfs2_page_mkwrite() gfs2_write_alloc_required() expects pos to be the offset in bytes. However, instead of the page index being shifted by by PAGE_CACHE_SHIFT, it was shifted by (PAGE_CACHE_SIZE - inode->i_blkbits). This patch simply shifts the page index by the proper amount. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: LSF and LBD are now one and the sameSteven Whitehouse2009-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As a result of this recent patch: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=b3a6ffe16b5cc48abe7db8d04882dc45280eb693 We only need to depend on LBD. Reported-by: Fabio M. Di Nitto <fdinitto@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Set GFP_NOFS when allocating page on writeSteven Whitehouse2009-01-071-0/+1
| | |/ | |/| | | | | | | | | | | | | | | | | | | We need to ensure that we always set GFP_NOFS in this one particular case when allocating pages for write. Reported-by: Fabio M. Di Nitto <fdinitto@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2009-01-079-10/+10
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (24 commits) trivial: chack -> check typo fix in main Makefile trivial: Add a space (and a comma) to a printk in 8250 driver trivial: Fix misspelling of "firmware" in docs for ncr53c8xx/sym53c8xx trivial: Fix misspelling of "firmware" in powerpc Makefile trivial: Fix misspelling of "firmware" in usb.c trivial: Fix misspelling of "firmware" in qla1280.c trivial: Fix misspelling of "firmware" in a100u2w.c trivial: Fix misspelling of "firmware" in megaraid.c trivial: Fix misspelling of "firmware" in ql4_mbx.c trivial: Fix misspelling of "firmware" in acpi_memhotplug.c trivial: Fix misspelling of "firmware" in ipw2100.c trivial: Fix misspelling of "firmware" in atmel.c trivial: Fix misspelled firmware in Kconfig trivial: fix an -> a typos in documentation and comments trivial: fix then -> than typos in comments and documentation trivial: update Jesper Juhl CREDITS entry with new email trivial: fix singal -> signal typo trivial: Fix incorrect use of "loose" in event.c trivial: printk: fix indentation of new_text_line declaration trivial: rtc-stk17ta8: fix sparse warning ...
| * | trivial: fix an -> a typos in documentation and commentsFrederik Schwarzer2009-01-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is always "an" if there is a vowel _spoken_ (not written). So it is: "an hour" (spoken vowel) but "a uniform" (spoken 'j') Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
| * | trivial: fix then -> than typos in comments and documentationFrederik Schwarzer2009-01-068-9/+9
| | | | | | | | | | | | | | | | | | | | | - (better, more, bigger ...) then -> (...) than Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6Linus Torvalds2009-01-061-8/+3
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6: (60 commits) uio: make uio_info's name and version const UIO: Documentation for UIO ioport info handling UIO: Pass information about ioports to userspace (V2) UIO: uio_pdrv_genirq: allow custom irq_flags UIO: use pci_ioremap_bar() in drivers/uio arm: struct device - replace bus_id with dev_name(), dev_set_name() libata: struct device - replace bus_id with dev_name(), dev_set_name() avr: struct device - replace bus_id with dev_name(), dev_set_name() block: struct device - replace bus_id with dev_name(), dev_set_name() chris: struct device - replace bus_id with dev_name(), dev_set_name() dmi: struct device - replace bus_id with dev_name(), dev_set_name() gadget: struct device - replace bus_id with dev_name(), dev_set_name() gpio: struct device - replace bus_id with dev_name(), dev_set_name() gpu: struct device - replace bus_id with dev_name(), dev_set_name() hwmon: struct device - replace bus_id with dev_name(), dev_set_name() i2o: struct device - replace bus_id with dev_name(), dev_set_name() IA64: struct device - replace bus_id with dev_name(), dev_set_name() i7300_idle: struct device - replace bus_id with dev_name(), dev_set_name() infiniband: struct device - replace bus_id with dev_name(), dev_set_name() ISDN: struct device - replace bus_id with dev_name(), dev_set_name() ...
| * | | block: struct device - replace bus_id with dev_name(), dev_set_name()Kay Sievers2009-01-061-8/+3
| |/ / | | | | | | | | | | | | | | | Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | Merge branch 'for-linus' of ↵Linus Torvalds2009-01-066-171/+693
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: clean up annotations of fc->lock fuse: fix sparse warning in ioctl fuse: update interface version fuse: add fuse_conn->release() fuse: separate out fuse_conn_init() from new_conn() fuse: add fuse_ prefix to several functions fuse: implement poll support fuse: implement unsolicited notification fuse: add file kernel handle fuse: implement ioctl support fuse: don't let fuse_req->end() put the base reference fuse: move FUSE_MINOR to miscdevice.h fuse: style fixes
| * | | fuse: clean up annotations of fc->lockHarvey Harrison2008-12-022-5/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Makes the existing annotations match the more common one per line style and adds a few missing annotations. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| * | | fuse: fix sparse warning in ioctlMiklos Szeredi2008-12-021-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix sparse warning: CHECK fs/fuse/file.c fs/fuse/file.c:1615:17: warning: incorrect type in assignment (different address spaces) fs/fuse/file.c:1615:17: expected void [noderef] <asn:1>*iov_base fs/fuse/file.c:1615:17: got void *<noident> This was introduced by "fuse: implement ioctl support". Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| * | | fuse: add fuse_conn->release()Tejun Heo2008-11-262-1/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add fuse_conn->release() so that fuse_conn can be embedded in other structures. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| * | | fuse: separate out fuse_conn_init() from new_conn()Tejun Heo2008-11-262-57/+67
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Separate out fuse_conn_init() from new_conn() and while at it initialize fuse_conn->entry during conn initialization. This will be used by CUSE. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| * | | fuse: add fuse_ prefix to several functionsTejun Heo2008-11-265-52/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add fuse_ prefix to request_send*() and get_root_inode() as some of those functions will be exported for CUSE. With or without CUSE export, having the function names scoped is a good idea for debuggability. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| * | | fuse: implement poll supportTejun Heo2008-11-264-0/+172
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Implement poll support. Polled files are indexed using kh in a RB tree rooted at fuse_conn->polled_files. Client should send FUSE_NOTIFY_POLL notification once after processing FUSE_POLL which has FUSE_POLL_SCHEDULE_NOTIFY set. Sending notification unconditionally after the latest poll or everytime file content might have changed is inefficient but won't cause malfunction. fuse_file_poll() can sleep and requires patches from the following thread which allows f_op->poll() to sleep. http://thread.gmane.org/gmane.linux.kernel/726176 Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| * | | fuse: implement unsolicited notificationTejun Heo2008-11-261-2/+25
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clients always used to write only in response to read requests. To implement poll efficiently, clients should be able to issue unsolicited notifications. This patch implements basic notification support. Zero fuse_out_header.unique is now accepted and considered unsolicited notification and the error field contains notification code. This patch doesn't implement any actual notification. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| * | | fuse: add file kernel handleTejun Heo2008-11-264-4/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The file handle, fuse_file->fh, is opaque value supplied by userland FUSE server and uniqueness is not guaranteed. Add file kernel handle, fuse_file->kh, which is allocated by the kernel on file allocation and guaranteed to be unique. This will be used by poll to match notification to the respective file but can be used for other purposes where unique file handle is necessary. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| * | | fuse: implement ioctl supportTejun Heo2008-11-261-0/+280
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Generic ioctl support is tricky to implement because only the ioctl implementation itself knows which memory regions need to be read and/or written. To support this, fuse client can request retry of ioctl specifying memory regions to read and write. Deep copying (nested pointers) can be implemented by retrying multiple times resolving one depth of dereference at a time. For security and cleanliness considerations, ioctl implementation has restricted mode where the kernel determines data transfer directions and sizes using the _IOC_*() macros on the ioctl command. In this mode, retry is not allowed. For all FUSE servers, restricted mode is enforced. Unrestricted ioctl will be used by CUSE. Plese read the comment on top of fs/fuse/file.c::fuse_file_do_ioctl() for more information. Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| * | | fuse: don't let fuse_req->end() put the base referenceTejun Heo2008-11-263-7/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | fuse_req->end() was supposed to be put the base reference but there's no reason why it should. It only makes things more complex. Move it out of ->end() and make it the responsibility of request_end(). Signed-off-by: Tejun Heo <tj@kernel.org> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
| * | | fuse: style fixesMiklos Szeredi2008-11-266-47/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix coding style errors reported by checkpatch and others. Uptdate copyright date to 2008. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
* | | | bfs: check that filesystem fits on the blockdeviceEric Sesterhenn2009-01-061-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since all sanity checks rely on the validity of s_start which gets only checked to be smaller than s_end, we should also check if s_end is sane. Now we also try to retrieve the last block of the filesystem, which is computed by s_end. If this fails, something is bogus. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Acked-by: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | bfs: add some basic sanity checksEric Sesterhenn2009-01-061-0/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | bfs_fill_super() already touches all inodes, so we can easily add some cheap sanity checks and check if the inode start and end blocks are smaller than the maximum number of blocks, the inode start block lies behind the end block or the file end offset is behind the end of the filesystem. Also check if the start of data offset in the super block fits the filesystem. The added sanity checks catch softlockup issues early when we try to sb_bread() lots of blocks in a loop in bfs_readdir() and bfs_find_entry(). In addition an oom issue in bfs_fill_super() is prevented by this when s_start is corrupted, which influences imap_len and we try to allocate a huge info->si_imap. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Acked-by: Tigran Aivazian <tigran@aivazian.fsnet.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | fs/exec.c: make do_coredump() voidWANG Cong2009-01-061-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | No one cares do_coredump()'s return value, and also it seems that it is also not necessary. So make it void. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: WANG Cong <wangcong@zeuux.org> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | minix: fix add link's wrong position calculationEvgeniy Dushistov2009-01-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the add link method. The oosition in the directory was calculated in wrong way - it had the incorrect shift direction. [akpm@linux-foundation.org: coding-style fixes] Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: <stable@kernel.org> [2.6.lots] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | autofs4: fix string validation check orderIan Kent2009-01-061-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In function validate_dev_ioctl() we check that the string we've been sent is a valid path. The function that does this check assumes the string is NULL terminated but our NULL termination check isn't done until after this call. This patch changes the order of the check. Signed-off-by: Ian Kent <raven@themaw.net> Acked-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | autofs4: make autofs type usage explicitIan Kent2009-01-065-17/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - the type assigned at mount when no type is given is changed from 0 to AUTOFS_TYPE_INDIRECT. This was done because 0 and AUTOFS_TYPE_INDIRECT were being treated implicitly as the same type. - previously, an offset mount had it's type set to AUTOFS_TYPE_DIRECT|AUTOFS_TYPE_OFFSET but the mount control re-implementation needs to be able distinguish all three types. So this was changed to make the type setting explicit. - a type AUTOFS_TYPE_ANY was added for use by the re-implementation when checking if a given path is a mountpoint. It's not really a type as we use this to ask if a given path is a mountpoint in the autofs_dev_ioctl_ismountpoint() function. - functions to set and test the autofs mount types have been added to improve readability and make the type usage explicit. - the mount type is used from user space for the mount control re-implementtion so, for consistency, all the definitions have been moved to the user space include file include/linux/auto_fs4.h. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | autofs4: fix var shadowed by local delarationIan Kent2009-01-061-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | A local definition of devid in autofs_dev_ioctl_ismountpoint() shadows the fuction wide definition. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | autofs4: improve parameter usageIan Kent2009-01-061-25/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The parameter usage in the device node ioctl code uses arg1 and arg2 as parameter names. This patch redefines the parameter names to reflect what they actually are in an effort to make the code more readable. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | fs/ecryptfs/inode.c: cleanup kerneldocQinghuang Feng2009-01-061-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Arguments lower_dentry and ecryptfs_dentry in ecryptfs_create_underlying_file() have been merged into dentry, now fix it. Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | eCryptfs: Clean up ecryptfs_decode_from_filename()Michael Halcrow2009-01-061-27/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Flesh out the comments for ecryptfs_decode_from_filename(). Remove the return condition, since it is always 0. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | eCryptfs: kerneldoc for ecryptfs_parse_tag_70_packet()Michael Halcrow2009-01-061-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Kerneldoc updates for ecryptfs_parse_tag_70_packet(). Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | eCryptfs: Fix data types (int/size_t)Michael Halcrow2009-01-064-16/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Correct several format string data type specifiers. Correct filename size data types; they should be size_t rather than int when passed as parameters to some other functions (although note that the filenames will never be larger than int). Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | eCryptfs: Replace %Z with %zMichael Halcrow2009-01-064-24/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | %Z is a gcc-ism. Using %z instead. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | eCryptfs: Filename Encryption: mount optionMichael Halcrow2009-01-061-27/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Enable mount-wide filename encryption by providing the Filename Encryption Key (FNEK) signature as a mount option. Note that the ecryptfs-utils userspace package versions 61 or later support this option. When mounting with ecryptfs-utils version 61 or later, the mount helper will detect the availability of the passphrase-based filename encryption in the kernel (via the eCryptfs sysfs handle) and query the user interactively as to whether or not he wants to enable the feature for the mount. If the user enables filename encryption, the mount helper will then prompt for the FNEK signature that the user wishes to use, suggesting by default the signature for the mount passphrase that the user has already entered for encrypting the file contents. When not using the mount helper, the user can specify the signature for the passphrase key with the ecryptfs_fnek_sig= mount option. This key must be available in the user's keyring. The mount helper usually takes care of this step. If, however, the user is not mounting with the mount helper, then he will need to enter the passphrase key into his keyring with some other utility prior to mounting, such as ecryptfs-manager. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | eCryptfs: Filename Encryption: filldir, lookup, and readlinkMichael Halcrow2009-01-064-242/+195
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make the requisite modifications to ecryptfs_filldir(), ecryptfs_lookup(), and ecryptfs_readlink() to call out to filename encryption functions. Propagate filename encryption policy flags from mount-wide crypt_stat to inode crypt_stat. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | eCryptfs: Filename Encryption: Encoding and encryption functionsMichael Halcrow2009-01-061-0/+433
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These functions support encrypting and encoding the filename contents. The encrypted filename contents may consist of any ASCII characters. This patch includes a custom encoding mechanism to map the ASCII characters to a reduced character set that is appropriate for filenames. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | eCryptfs: Filename Encryption: Header updatesMichael Halcrow2009-01-062-14/+51
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Extensions to the header file to support filename encryption. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | eCryptfs: Filename Encryption: Tag 70 packetsMichael Halcrow2009-01-063-70/+613
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patchset implements filename encryption via a passphrase-derived mount-wide Filename Encryption Key (FNEK) specified as a mount parameter. Each encrypted filename has a fixed prefix indicating that eCryptfs should try to decrypt the filename. When eCryptfs encounters this prefix, it decodes the filename into a tag 70 packet and then decrypts the packet contents using the FNEK, setting the filename to the decrypted filename. Both unencrypted and encrypted filenames can reside in the same lower filesystem. Because filename encryption expands the length of the filename during the encoding stage, eCryptfs will not properly handle filenames that are already near the maximum filename length. In the present implementation, eCryptfs must be able to produce a match against the lower encrypted and encoded filename representation when given a plaintext filename. Therefore, two files having the same plaintext name will encrypt and encode into the same lower filename if they are both encrypted using the same FNEK. This can be changed by finding a way to replace the prepended bytes in the blocked-aligned filename with random characters; they are hashes of the FNEK right now, so that it is possible to deterministically map from a plaintext filename to an encrypted and encoded filename in the lower filesystem. An implementation using random characters will have to decode and decrypt every single directory entry in any given directory any time an event occurs wherein the VFS needs to determine whether a particular file exists in the lower directory and the decrypted and decoded filenames have not yet been extracted for that directory. Thanks to Tyler Hicks and David Kleikamp for assistance in the development of this patchset. This patch: A tag 70 packet contains a filename encrypted with a Filename Encryption Key (FNEK). This patch implements functions for writing and parsing tag 70 packets. This patch also adds definitions and extends structures to support filename encryption. Signed-off-by: Michael Halcrow <mhalcrow@us.ibm.com> Cc: Dustin Kirkland <dustin.kirkland@gmail.com> Cc: Eric Sandeen <sandeen@redhat.com> Cc: Tyler Hicks <tchicks@us.ibm.com> Cc: David Kleikamp <shaggy@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | fs/ncpfs/getopt.c: cleanup keneldocQinghuang Feng2009-01-061-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There are no argument named @flag in ncp_getopt(), remove it. Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Petr Vandrovec <VANDROVE@vc.cvut.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | | fs/binfmt_misc.c: add terminating newline to /proc/sys/fs/binfmt_misc/statusQinghuang Feng2009-01-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The following is what it looks like before patching. It is not much readable. user@ubuntu:/proc/sys/fs/binfmt_misc$ cat status enableduser@ubuntu:/proc/sys/fs/binfmt_misc$ Signed-off-by: Qinghuang Feng <qhfeng.kernel@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 16:25:29 +0000