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* compat_ioctl: Supress "unknown cmd" message on serial /dev/consoleAtsushi Nemoto2010-01-201-0/+3
| | | | | | | | | | | | | | | | | | | After the commit fb07a5f8 ("compat_ioctl: remove all VT ioctl handling"), I got this error message on 64-bit mips kernel with 32-bit busybox userland: ioctl32(init:1): Unknown cmd fd(0) cmd(00005600){t:'V';sz:0} arg(7fd76480) on /dev/console The cmd 5600 is VT_OPENQRY. The busybox's init issues this ioctl to know vt-console or serial-console. If the console was serial console, VT ioctls are not handled by the serial driver. And by quick search, I found some programs using VT_GETMODE to check vt-console is available or not. Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* fs/compat_ioctl.c: fix build error when !BLOCKArnd Bergmann2009-12-221-2/+0
| | | | | | | | | | No driver uses SG_SET_TRANSFORM any more in Linux, since the ide-scsi driver was removed in 2.6.29. The compat-ioctl cleanup series moved the handling for this around, which broke building without CONFIG_BLOCK. Just remove the code handling it for compat mode. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* md: move compat_ioctl handling into md.cArnd Bergmann2009-12-141-18/+0
| | | | | | | | | | | | The RAID ioctls are only implemented in md.c, so the handling for them should also be moved there from fs/compat_ioctl.c. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Neil Brown <neilb@suse.de> Cc: Andre Noll <maan@systemlinux.org> Cc: linux-raid@vger.kernel.org Signed-off-by: NeilBrown <neilb@suse.de>
* usbdevfs: move compat_ioctl handling to devio.cArnd Bergmann2009-12-101-112/+0
| | | | | | | | | | | | | | | | | Half the compat_ioctl handling is in devio.c, the other half is in fs/compat_ioctl.c. This moves everything into one place for consistency. As a positive side-effect, push down the BKL into the ioctl methods. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Cc: Alan Stern <stern@rowland.harvard.edu> Cc: Oliver Neukum <oliver@neukum.org> Cc: Alon Bar-Lev <alon.barlev@gmail.com> Cc: David Vrabel <david.vrabel@csr.com> Cc: linux-usb@vger.kernel.org
* lp: move compat_ioctl handling into lp.cArnd Bergmann2009-12-101-33/+0
| | | | | | | | | Handling for LPSETTIMEOUT can easily be done in lp_ioctl, which is the only user. As a positive side-effect, push the BKL into the ioctl methods. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
* compat_ioctl: pass compat pointer directly to handlersArnd Bergmann2009-12-101-128/+83
| | | | | | | | Instead of having each handler call compat_ptr, we can now convert the pointer once and pass that to each handler. This saves a little bit of both source and object code size. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* compat_ioctl: simplify lookup tableArnd Bergmann2009-12-101-46/+44
| | | | | | | | | | | | | | | | | | | | | | The compat_ioctl table now only contains entries for COMPATIBLE_IOCTL, so we only need to know if a number is listed in it or now. As an optimization, we hash the table entries with a reversible transformation to get a more uniform distribution over it, sort the table at startup and then guess the position in the table when an ioctl number gets called to do a linear search from there. With the current set of ioctl numbers and the chosen transformation function, we need an average of four steps to find if a number is in the set, all of the accesses within one or two cache lines. This at least as good as the previous hash table approach but saves 8.5 kb of kernel memory. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* compat_ioctl: simplify calling of handlersArnd Bergmann2009-12-101-47/+39
| | | | | | | | | | | | | The compat_ioctl array now contains only entries for ioctl numbers that do not require a separate handler. By special-casing the ULONG_IOCTL case in the do_ioctl_trans function, we can kill the final use of a function pointer in the array. text data bss dec hex filename 7539 13352 2080 22971 59bb before/fs/compat_ioctl.o 7910 8552 2080 18542 486e after/fs/compat_ioctl.o Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* compat_ioctl: inline all conversion handlersArnd Bergmann2009-12-101-54/+81
| | | | | | | | | | | | | | | | This makes all ioctl conversion handlers called from a single switch statement, leaving only COMPATIBLE_IOCTL and ULONG_IOCTL statements in the table. This is somewhat more space efficient and also lets us simplify the handling of the lookup table significantly. before: text data bss dec hex filename 7619 14024 2080 23723 5cab obj/fs/compat_ioctl.o after: 7567 13352 2080 22999 59d7 obj/fs/compat_ioctl.o Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* compat_ioctl: Remove BKLArnd Bergmann2009-12-101-2/+0
| | | | | | | | | | | | | | | | We have always called ioctl conversion handlers under the big kernel lock, although that is generally not necessary. In particular it is not needed for conversion of data structures and for calling sys_ioctl or do_vfs_ioctl, which will get the BKL again if needed. Handlers doing more than those two have been moved out, so we can kill off the BKL from compat_sys_ioctl. This may significantly improve latencies with 32 bit applications, and it avoids a common scenario where a thread acquires the BKL twice. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Cc: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* compat_ioctl: remove all VT ioctl handlingArnd Bergmann2009-12-101-187/+1
| | | | | | | | | | | | | | The VT driver now handles all of these ioctls directly, so we can remove the handlers from common code. These are the only handlers that require the BKL because they directly perform the ioctl action rather than just converting the data structures. Once they are gone, we can remove the BKL from the remaining ioctl conversion handlers. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-12-091-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (42 commits) tree-wide: fix misspelling of "definition" in comments reiserfs: fix misspelling of "journaled" doc: Fix a typo in slub.txt. inotify: remove superfluous return code check hdlc: spelling fix in find_pvc() comment doc: fix regulator docs cut-and-pasteism mtd: Fix comment in Kconfig doc: Fix IRQ chip docs tree-wide: fix assorted typos all over the place drivers/ata/libata-sff.c: comment spelling fixes fix typos/grammos in Documentation/edac.txt sysctl: add missing comments fs/debugfs/inode.c: fix comment typos sgivwfb: Make use of ARRAY_SIZE. sky2: fix sky2_link_down copy/paste comment error tree-wide: fix typos "couter" -> "counter" tree-wide: fix typos "offest" -> "offset" fix kerneldoc for set_irq_msi() spidev: fix double "of of" in comment comment typo fix: sybsystem -> subsystem ...
| * Merge branch 'for-next' into for-linusJiri Kosina2009-12-071-1/+1
| |\ | | | | | | | | | | | | | | | Conflicts: kernel/irq/chip.c
| | * tree-wide: fix misspelling of "definition" in commentsAdam Buchbinder2009-12-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | "Definition" is misspelled "defintion" in several comments; this patch fixes them. No code changes. Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | Merge branch 'master' of ↵David S. Miller2009-11-181-2/+2
|\ \ \ | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/sfc/sfe4001.c drivers/net/wireless/libertas/cmd.c drivers/staging/Kconfig drivers/staging/Makefile drivers/staging/rtl8187se/Kconfig drivers/staging/rtl8192e/Kconfig
| * | fs: add missing compat_ptr handling for FS_IOC_RESVSP ioctlHeiko Carstens2009-11-121-2/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For FS_IOC_RESVSP and FS_IOC_RESVSP64 compat_sys_ioctl() uses its arg argument as a pointer to userspace. However it is missing a a call to compat_ptr() which will do a proper pointer conversion. This was introduced with 3e63cbb1 "fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ioctls". Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Ankit Jain <me@ankitjain.org> Acked-by: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Arnd Bergmann <arndbergmann@googlemail.com> Acked-by: David S. Miller <davem@davemloft.net> Cc: <stable@kernel.org> [2.6.31.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | compat: move sockios handling to net/socket.cArnd Bergmann2009-11-061-722/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This removes the original socket compat_ioctl code from fs/compat_ioctl.c and converts the code from the copy in net/socket.c into a single function. We add a few cycles of runtime to compat_sock_ioctl() with the long switch() statement, but gain some cycles in return by simplifying the call chain to get there. Due to better inlining, save 1.5kb of object size in the process, and enable further savings: before: text data bss dec hex filename 13540 18008 2080 33628 835c obj/fs/compat_ioctl.o 14565 636 40 15241 3b89 obj/net/socket.o after: text data bss dec hex filename 8916 15176 2080 26172 663c obj/fs/compat_ioctl.o 20725 636 40 21401 5399 obj/net/socket.o Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | appletalk: handle SIOCATALKDIFADDR compat ioctlArnd Bergmann2009-11-061-1/+0
| | | | | | | | | | | | | | | | | | We must not have a compat ioctl handler for SIOCATALKDIFADDR in common code, because the same number is used in other protocols with different data structures. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net, compat_ioctl: handle socket ioctl abuses in tty driversArnd Bergmann2009-11-061-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Slip and a few other drivers use the same ioctl numbers on tty devices that are normally meant for sockets. This causes problems with our compat_ioctl handling that tries to convert the data structures in a different format. Fortunately, these five drivers all use 32 bit compatible data structures in the ioctl numbers, so we can just add a trivial compat_ioctl conversion function to each of them. SIOCSIFENCAP and SIOCGIFENCAP do not need to live in fs/compat_ioctl.c after this any more, and they are not used on any sockets. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net/tun: handle compat_ioctl directlyArnd Bergmann2009-11-061-20/+0
|/ | | | | | | | | | | | | | | | | | The tun driver is the only code in the kernel that operates on a character device with struct ifreq. Change the driver to handle the conversion itself so we can contain the remaining ifreq handling in the socket layer. This also fixes a bug in the handling of invalid ioctl numbers on an unbound tun device. The driver treats this as a TUNSETIFF in native mode, but there is no way for the generic compat_ioctl() function to emulate this behaviour. Possibly the driver was only doing this accidentally anyway, but if any code relies on this misfeature, it now also works in compat mode. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: David S. Miller <davem@davemloft.net>
* compat_ioctl: hook up compat handler for FIEMAP ioctlEric Sandeen2009-08-071-0/+1
| | | | | | | | | | | | | | | | | | | | | The FIEMAP_IOC_FIEMAP mapping ioctl was missing a 32-bit compat handler, which means that 32-bit suerspace on 64-bit kernels cannot use this ioctl command. The structure is nicely aligned, padded, and sized, so it is just this simple. Tested w/ 32-bit ioctl tester (from Josef) on a 64-bit kernel on ext4. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Cc: <linux-ext4@vger.kernel.org> Cc: Mark Lord <lkml@rtr.ca> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Josef Bacik <josef@redhat.com> Cc: Jan Kara <jack@suse.cz> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* headers: smp_lock.h reduxAlexey Dobriyan2009-07-121-0/+1
| | | | | | | | | | | | | * Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fs: Add new pre-allocation ioctls to vfs for compatibility with legacy xfs ↵Ankit Jain2009-06-241-0/+48
| | | | | | | | | | | | | | | | ioctls This patch adds ioctls to vfs for compatibility with legacy XFS pre-allocation ioctls (XFS_IOC_*RESVP*). The implementation effectively invokes sys_fallocate for the new ioctls. Also handles the compat_ioctl case. Note: These legacy ioctls are also implemented by OCFS2. [AV: folded fixes from hch] Signed-off-by: Ankit Jain <me@ankitjain.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge git://git.infradead.org/mtd-2.6Linus Torvalds2009-06-221-52/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/mtd-2.6: (63 commits) mtd: OneNAND: Allow setting of boundary information when built as module jffs2: leaking jffs2_summary in function jffs2_scan_medium mtd: nand: Fix memory leak on txx9ndfmc probe failure. mtd: orion_nand: use burst reads with double word accesses mtd/nand: s3c6400 support for s3c2410 driver [MTD] [NAND] S3C2410: Use DIV_ROUND_UP [MTD] [NAND] S3C2410: Deal with unaligned lengths in S3C2440 buffer read/write [MTD] [NAND] S3C2410: Allow the machine code to get the BBT table from NAND [MTD] [NAND] S3C2410: Added a kerneldoc for s3c2410_nand_set mtd: physmap_of: Add multiple regions and concatenation support mtd: nand: max_retries off by one in mxc_nand mtd: nand: s3c2410_nand_setrate(): use correct macros for 2412/2440 mtd: onenand: add bbt_wait & unlock_all as replaceable for some platform mtd: Flex-OneNAND support mtd: nand: add OMAP2/OMAP3 NAND driver mtd: maps: Blackfin async: fix memory leaks in probe/remove funcs mtd: uclinux: mark local stuff static mtd: uclinux: do not allow to be built as a module mtd: uclinux: allow systems to override map addr/size mtd: blackfin NFC: fix hang when using NAND on BF527-EZKITs ...
| * mtd: Handle compat ioctls directly; remove all trace from compat_ioctl.cKevin Cernekee2009-05-291-22/+0
| | | | | | | | | | | | | | | | | | Remove all references to MTD ioctls from fs/compat_ioctl.c and let them all be handled by mtd_compat_ioctl(). Signed-off-by: Kevin Cernekee <kpc.mtd@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * mtd: add OOB ioctls for >4GiB devicesKevin Cernekee2009-05-291-0/+2
| | | | | | | | | | | | Signed-off-by: Kevin Cernekee <kpc.mtd@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * mtd: compat_ioctl cleanupKevin Cernekee2009-05-291-42/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1) Move the MEMREADOOB/MEMWRITEOOB compat_ioctl wrappers from fs/compat_ioctl.c into mtdchar.c . Original request was here: http://lkml.org/lkml/2009/4/1/295 2) Add missing COMPATIBLE_IOCTL lines, so that mtd-utils does not error out when running in 64/32 compatibility mode. LKML-Reference: <200904011650.22928.arnd@arndb.de> Signed-off-by: Kevin Cernekee <kpc.mtd@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
| * mtd: add MEMERASE64 ioctl for >4GiB devicesKevin Cernekee2009-05-291-0/+1
| | | | | | | | | | | | | | | | | | New MEMERASE/MEMREADOOB/MEMWRITEOOB ioctls are needed in order to support 64-bit offsets into large NAND flash devices. Signed-off-by: Kevin Cernekee <kpc.mtd@gmail.com> Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2009-06-171-6/+0
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: [SCSI] aic79xx: make driver respect nvram for IU and QAS settings [SCSI] don't attach ULD to Dell Universal Xport [SCSI] lpfc 8.3.3 : Update driver version to 8.3.3 [SCSI] lpfc 8.3.3 : Add support for Target Reset handler entrypoint [SCSI] lpfc 8.3.3 : Fix a couple of spin_lock and memory issues and a crash [SCSI] lpfc 8.3.3 : FC/FCOE discovery fixes [SCSI] lpfc 8.3.3 : Fix various SLI-3 vs SLI-4 differences [SCSI] qla2xxx: Resolve a performance issue in interrupt [SCSI] cnic, bnx2i: Fix build failure when CONFIG_PCI is not set. [SCSI] nsp_cs: time_out reaches -1 [SCSI] qla2xxx: fix printk format warnings [SCSI] ncr53c8xx: div reaches -1 [SCSI] compat: don't perform unneeded copy in sg_io code [SCSI] zfcp: Update FC pass-through support [SCSI] zfcp: Add FC pass-through support [SCSI] FC Pass Thru support
| * | [SCSI] compat: don't perform unneeded copy in sg_io codeAlexey Zaytsev2009-06-151-6/+0
| |/ | | | | | | | | | | | | | | | | | | | | | | The members from 'status' in struct sg_io_hdr to the last are used to transfer information from kernel to user space. The values that user space sets are just ignored. Signed-off-by: Alexey Zaytsev <alexey.zaytsev@gmail.com> Acked-by: Jens Axboe <jens.axboe@oracle.com> Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* | trivial: fix typo compatiable/compatiability has extra 'a'.Thadeu Lima de Souza Cascardo2009-06-121-1/+1
|/ | | | Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* fs/compat_ioctl: fix build when !BLOCKAlexander Beregalov2009-04-201-4/+3
| | | | | | | | In file included from fs/compat_ioctl.c:61: include/linux/loop.h:59: error: field 'lo_bio_list' has incomplete type Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for-linus' of git://neil.brown.name/mdLinus Torvalds2009-04-031-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://neil.brown.name/md: (53 commits) md/raid5 revise rules for when to update metadata during reshape md/raid5: minor code cleanups in make_request. md: remove CONFIG_MD_RAID_RESHAPE config option. md/raid5: be more careful about write ordering when reshaping. md: don't display meaningless values in sysfs files resync_start and sync_speed md/raid5: allow layout and chunksize to be changed on active array. md/raid5: reshape using largest of old and new chunk size md/raid5: prepare for allowing reshape to change layout md/raid5: prepare for allowing reshape to change chunksize. md/raid5: clearly differentiate 'before' and 'after' stripes during reshape. Documentation/md.txt update md: allow number of drives in raid5 to be reduced md/raid5: change reshape-progress measurement to cope with reshaping backwards. md: add explicit method to signal the end of a reshape. md/raid5: enhance raid5_size to work correctly with negative delta_disks md/raid5: drop qd_idx from r6_state md/raid6: move raid6 data processing to raid6_pq.ko md: raid5 run(): Fix max_degraded for raid level 4. md: 'array_size' sysfs attribute md: centralize ->array_sectors modifications ...
| * md: move lots of #include lines out of .h files and into .cNeilBrown2009-03-311-1/+1
| | | | | | | | | | | | | | | | | | | | This makes the includes more explicit, and is preparation for moving md_k.h to drivers/md/md.h Remove include/raid/md.h as its only remaining use was to #include other files. Signed-off-by: NeilBrown <neilb@suse.de>
* | Merge branch 'master' of ↵David S. Miller2009-03-011-0/+3
|\ \ | |/ | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 Conflicts: drivers/net/wireless/iwlwifi/iwl-tx.c net/8021q/vlan_core.c net/core/dev.c
| * Fix FREEZE/THAW compat_ioctl regressionChristoph Hellwig2009-02-271-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | Commit 8e961870bb9804110d5c8211d5d9d500451c4518 removed the FREEZE/THAW handling in xfs_compat_ioctl but never added any compat handler back, so now any freeze/thaw request from a 32-bit binary ond 64-bit userspace will fail. As these ioctls are 32/64-bit compatible two simple COMPATIBLE_IOCTL entries in fs/compat_ioctl.c will do the job. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller2009-02-241-0/+2
|\ \ | |/
| * vt: Declare PIO_CMAP/GIO_CMAP as compatbile ioctls.Bill Nottingham2009-02-181-0/+2
| | | | | | | | | | | | | | | | | | | | | | Otherwise, these don't work when called from 32-bit userspace on 64-bit kernels. Cc: Jiri Kosina <jkosina@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: <stable@kernel.org> [2.6.25.x, 2.6.26.x, 2.6.27.x, 2.6.28.x] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | net: pass new SIOCSHWTSTAMP through to device driversPatrick Ohly2009-02-151-0/+6
| | | | | | | | | | Signed-off-by: Patrick Ohly <patrick.ohly@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | Merge branch 'master' of /home/davem/src/GIT/linux-2.6/David S. Miller2009-02-141-1/+1
|\ \ | |/ | | | | | | | | Conflicts: drivers/net/wireless/iwlwifi/iwl-agn.c drivers/net/wireless/iwlwifi/iwl3945-base.c
| * braino in sg_ioctl_trans()Al Viro2009-02-051-1/+1
| | | | | | | | | | | | | | | | ... and yes, gcc is insane enough to eat that without complaint. We probably want sparse to scream on those... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | tun: Limit amount of queued packets per deviceHerbert Xu2009-02-051-0/+2
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Unlike a normal socket path, the tuntap device send path does not have any accounting. This means that the user-space sender may be able to pin down arbitrary amounts of kernel memory by continuing to send data to an end-point that is congested. Even when this isn't an issue because of limited queueing at most end points, this can also be a problem because its only response to congestion is packet loss. That is, when those local queues at the end-point fills up, the tuntap device will start wasting system time because it will continue to send data there which simply gets dropped straight away. Of course one could argue that everybody should do congestion control end-to-end, unfortunately there are people in this world still hooked on UDP, and they don't appear to be going away anywhere fast. In fact, we've always helped them by performing accounting in our UDP code, the sole purpose of which is to provide congestion feedback other than through packet loss. This patch attempts to apply the same bandaid to the tuntap device. It creates a pseudo-socket object which is used to account our packets just as a normal socket does for UDP. Of course things are a little complex because we're actually reinjecting traffic back into the stack rather than out of the stack. The stack complexities however should have been resolved by preceding patches. So this one can simply start using skb_set_owner_w. For now the accounting is essentially disabled by default for backwards compatibility. In particular, we set the cap to INT_MAX. This is so that existing applications don't get confused by the sudden arrival EAGAIN errors. In future we may wish (or be forced to) do this by default. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* tun: Add some missing TUN compat ioctl translations.David S. Miller2009-01-291-0/+7
| | | | | | | | | | Based upon a report from Michael Tokarev <mjt@tls.msk.ru>: Just saw in dmesg: ioctl32(kvm:4408): Unknown cmd fd(9) cmd(800454cf){t:'T';sz:4} arg(ffc668e4) on /dev/net/tun Signed-off-by: David S. Miller <davem@davemloft.net>
* remove unused #include <linux/dirent.h>'sAdrian Bunk2008-07-251-1/+0
| | | | | | | | | Remove some unused #include <linux/dirent.h>'s. Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* autofs4: remove unused ioctlsIan Kent2008-07-241-2/+0
| | | | | | | | | | | The ioctls AUTOFS_IOC_TOGGLEREGHOST and AUTOFS_IOC_ASKREGHOST were added several years ago but what they were intended for has never been implemented (as far as I'm aware noone uses them) so remove them. Signed-off-by: Ian Kent <raven@themaw.net> Reviewed-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'master' of ↵David S. Miller2008-07-191-0/+1
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/holtmann/bluetooth-2.6
| * [Bluetooth] Export details about authentication requirementsMarcel Holtmann2008-07-141-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | With the Simple Pairing support, the authentication requirements are an explicit setting during the bonding process. Track and enforce the requirements and allow higher layers like L2CAP and RFCOMM to increase them if needed. This patch introduces a new IOCTL that allows to query the current authentication requirements. It is also possible to detect Simple Pairing support in the kernel this way. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
* | Merge branch 'master' of ↵David S. Miller2008-07-181-0/+6
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6 Conflicts: Documentation/powerpc/booting-without-of.txt drivers/atm/Makefile drivers/net/fs_enet/fs_enet-main.c drivers/pci/pci-acpi.c net/8021q/vlan.c net/iucv/iucv.c
| * | Fix compile issues in fs/compat_ioctl.c when CONFIG_BLOCK is disabledRandy Dunlap2008-07-161-0/+6
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix fs/compat_ioctl.c to handle CONFIG_BLOCK=n, CONFIG_SCSI=n to avoid build errors: In file included from include/scsi/scsi.h:12, from fs/compat_ioctl.c:71: include/scsi/scsi_cmnd.h:27:25: warning: "BLK_MAX_CDB" is not defined include/scsi/scsi_cmnd.h:28:3: error: #error MAX_COMMAND_SIZE can not be bigger than BLK_MAX_CDB In file included from include/scsi/scsi.h:12, from fs/compat_ioctl.c:71: include/scsi/scsi_cmnd.h: In function 'scsi_bidi_cmnd': include/scsi/scsi_cmnd.h:182: error: implicit declaration of function 'blk_bidi_rq' include/scsi/scsi_cmnd.h:183: error: dereferencing pointer to incomplete type include/scsi/scsi_cmnd.h: In function 'scsi_in': include/scsi/scsi_cmnd.h:189: error: dereferencing pointer to incomplete type Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | wext: Remove compat handling from fs/compat_ioctl.cDavid S. Miller2008-06-161-106/+1
| | | | | | | | | | | | No longer used. Signed-off-by: David S. Miller <davem@davemloft.net>
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