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* [PATCH] fix rescan_partitions to return errors properlysuzuki2007-03-161-1/+1
| | | | | | | | | | | | | | The only error code which comes from the partition checkers is -1, when they finds an EIO. As per the discussion, ENOMEM values were ignored, as they might scare the users. So, with the current code, we end up returning -1 and not EIO for the ioctl() calls. Which doesn't give any clue to the user of what went wrong. Signed-off-by: Suzuki K P <suzuki@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] check_partition(): fix error checksuzuki2007-03-081-1/+1
| | | | | | | | | Fix inverted check introduced in 57881dd9df40b76dc7fc6a0d13fd75f337accb32 "Fix check_partition routines". Signed-off-by: Suzuki K P <suzuki@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Driver: remove redundant kobject_unregister checksMariusz Kozlowski2007-02-161-6/+3
| | | | | | | | Here is a patch that removes all redundant kobject_unregister argument checks. Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PARTITION]: Add whole_disk attribute.Fabio Massimo Di Nitto2007-02-101-3/+12
| | | | | | | | | | | | | | | | | | Some partitioning systems create special partitions that span the entire disk. One example are Sun partitions, and this whole-disk partition exists to tell the firmware the extent of the entire device so it can load the boot block and do other things. Such partitions should not be treated as normal partitions, because all the other partitions overlap this whole-disk one. So we'd see multiple instances of the same UUID etc. which we do not want. udev and friends can thus search for this 'whole_disk' attribute and use it to decide to ignore the partition. Signed-off-by: Fabio Massimo Di Nitto <fabbione@ubuntu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* [PATCH] fault-injection capability for disk IOAkinobu Mita2006-12-081-0/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch provides fault-injection capability for disk IO. Boot option: fail_make_request=<probability>,<interval>,<space>,<times> <interval> -- specifies the interval of failures. <probability> -- specifies how often it should fail in percent. <space> -- specifies the size of free space where disk IO can be issued safely in bytes. <times> -- specifies how many times failures may happen at most. Debugfs: /debug/fail_make_request/interval /debug/fail_make_request/probability /debug/fail_make_request/specifies /debug/fail_make_request/times Example: fail_make_request=10,100,0,-1 echo 1 > /sys/blocks/hda/hda1/make-it-fail generic_make_request() on /dev/hda1 fails once per 10 times. Cc: Jens Axboe <axboe@suse.de> Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix check_partition routinesSuzuki K P2006-12-071-2/+13
| | | | | | | | | | | | | | | | | check_partition() stops its probe once it hits an I/O error from the partition checkers. This would prevent the actual partition checker getting a chance to verify the partition. So this patch lets check_partition() continue probing untill it hits a success while recording the I/O error which might have been reported by the checking routines. Also, it does some cleanup of the partition methods for ibm, atari and amiga to return -1 upon hitting an I/O error. Signed-off-by: Suzuki K P <suzuki@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fix rescan_partitions to return errors properlySuzuki Kp2006-12-071-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | The current rescan_partition implementation ignores the errors that comes from the lower layer. It reports success for unknown partitions as well as I/O error cases while reading the partition information. The unknown partition is not (and will not be) considered as an error in the kernel, since there are legal users of it (e.g, members of a RAID5 MD Device or a new disk which is not partitioned at all ). Changing this behaviour would scare the user about a serious problem with their disk and is not recommended. Thus for both "unknown partitions" to the Linux (eg., DEC VMS,Novell Netware) and the legal users of NULL partition, would still be reported as "SUCCESS". The patch attached here, scares the user about something which he does need to worry about. i.e, returning -EIO on disk I/O errors while reading the partition information. Signed-off-by: Suzuki K P <suzuki@in.ibm.com> Cc: Erik Mouw <erik@harddisk-recovery.com> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] fs/partitions/check: add sysfs error handlingJeff Garzik2006-10-171-8/+42
| | | | | | | | | | | | | | Handle errors thrown in disk_sysfs_symlinks(), and propagate back to caller. The callers and associated functions don't do a real good job of handling kobject errors anyway (add_partition, register_disk, rescan_partitions), so this should do until something better comes along. Signed-off-by: Jeff Garzik <jeff@garzik.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] partitions: let partitions inherit policy from diskPeter Oberparleiter2006-07-101-0/+1
| | | | | | | | | | | | | | | | | | | | Change the partition code in fs/partitions/check.c to initialize a newly detected partition's policy field with that of the containing block device (see patch below). My reasoning is that function set_disk_ro() in block/genhd.c modifies the policy field (read-only indicator) of a disk and all contained partitions. When a partition is detected after the call to set_disk_ro(), the policy field of this partition will currently not inherit the disk's policy field. This behavior poses a problem in cases where a block device can be 'logically de- and reactivated' like e.g. the s390 DASD driver because partition detection may run after the policy field has been modified. Signed-off-by: Peter Oberparleiter <peter.oberparleiter@de.ibm.com> Acked-by: Al Viro <viro@ftp.linux.org.uk> Makes-sense-to: Jens Axboe <axboe@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] devfs: Remove the devfs_fs_kernel.h file from the treeGreg Kroah-Hartman2006-06-261-1/+0
| | | | | | Also fixes up all files that #include it. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] devfs: Remove devfs_remove() function from the kernel treeGreg Kroah-Hartman2006-06-261-1/+0
| | | | | | Removes the devfs_remove() function and all callers of it. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel treeGreg Kroah-Hartman2006-06-261-4/+0
| | | | | | Removes the devfs_mk_bdev() function and all callers of it. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] devfs: Remove devfs from the partition codeGreg Kroah-Hartman2006-06-261-21/+5
| | | | | | This patch removes the devfs code from the fs/partitions/ directory. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] make kernel warn about incorrectly sized partitionsMike Miller2006-06-231-0/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Sometimes partitions claim to be larger than the reported capacity of a disk device. This patch makes the kernel warn about those partitions. We still permit these patitions to be used. Quoting Andries Brouwer <Andries.Brouwer@cwi.nl>: Case 1: The kernel is mistaken about the size of the disk. (There are commands to clip a disk to a certain capacity, there are jumpers to tell a disk that it should report a certain capacity etc. Usually this is because of BIOS bugs. In bad cases the machine will crash in the BIOS and hence fail to boot if the disk reports full capacity.) In such cases actually accessing the blocks of the partition may work fine, or may work fine after running an unclip utility. I wrote "setmax" some years ago precisely for this reason. Case 2: There was a messy partition table (maybe just a rounding error) but the actual filesystem on the partition is contained in the physical disk. Now using the filesystem goes without problem. Case 3: Both partition and filesystem extend beyond the end of the disk. In forensic or debugging situations one often uses a copy of the start of a disk. Now access beyond the end gives an expected I/O error. Signed-off-by: Mike Miller <mike.miller@hp.com> Signed-off-by: Stephen Cameron <steve.cameron@hp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] read_mapping_page for address spacePekka Enberg2006-06-231-2/+2
| | | | | | | | | | Add read_mapping_page() which is used for callers that pass mapping->a_ops->readpage as the filler for read_cache_page. This removes some duplication from filesystem code. Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Driver core: add generic "subsystem" link to all devicesKay Sievers2006-06-211-0/+4
| | | | | | | | | | | Like the SUBSYTEM= key we find in the environment of the uevent, this creates a generic "subsystem" link in sysfs for every device. Userspace usually doesn't care at all if its a "class" or a "bus" device. This provides an unified way to determine the subsytem of a device, regardless of the way the driver core has created it. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Alternative fix for MMC oops on unmount after removalLinus Torvalds2006-05-121-1/+2
| | | | | | | | | | | | | | | | | | | | | | | Make sure to clear the driverfs_dev pointer when we do del_gendisk() (on disk removal), so that other users that may still have a ref to the disk won't try to use the stale pointer. Also move the KOBJ_REMOVE uevent handler up, so that the uevent still has access to the driverfs_dev data. This all should hopefully fix the problems with MMC umounts after device removals that caused commit 56cf6504fc1c0c221b82cebc16a444b684140fb7 and its reversal (1a2acc9e9214699a99389e323e6686e9e0e2ca67). Original problem reported by Todd Blumer and others. Acked-by: Greg KH <gregkh@suse.de> Cc: Russell King <rmk+lkml@arm.linux.org.uk> Cc: James Bottomley <James.Bottomley@SteelEye.com> Cc: Erik Mouw <erik@harddisk-recovery.com> Cc: Andrew Vasquez <andrew.vasquez@qlogic.com> Cc: Todd Blumer <todd@sdgsystems.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Fix block device symlink nameStephen Rothwell2006-04-171-0/+5
| | | | | | | | | | | As noted further on the this file, some block devices have a / in their name, so fix the "block:..." symlink name the same as the /sys/block name. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] BLOCK: delay all uevents until partition table is scannedKay Sievers2006-04-141-8/+30
| | | | | | | | | | | | | | | | | | | | [BLOCK] delay all uevents until partition table is scanned Here we delay the annoucement of all block device events until the disk's partition table is scanned and all partition devices are already created and sysfs is populated. We have a bunch of old bugs for removable storage handling where we probe successfully for a filesystem on the raw disk, but at the same time the kernel recognizes a partition table and creates partition devices. Currently there is no sane way to tell if partitions will show up or not at the time the disk device is announced to userspace. With the delayed events we can simply skip any probe for a filesystem on the raw disk when we find already present partitions. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] dm-md-dependency-tree-in-sysfs-holders-slaves-subdirectory-tidyAndrew Morton2006-03-271-9/+0
| | | | | | | | | | | | | Remove all the CONFIG_SYSFS stuff. That's supposed to all be implemented up in header files. Yes, the CONFIG_SYSFS=n data structures will be a little larger than necessary, but that's a tradeoff we can decide to make. Cc: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] dm/md dependency tree in sysfs: holders/slaves subdirectoryJun'ichi Nomura2006-03-271-0/+36
| | | | | | | | | | Creating "slaves" and "holders" directories in /sys/block/<disk> and creating "holders" directory under /sys/block/<disk>/<partition> Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com> Cc: Alasdair G Kergon <agk@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] partitions: Read Rio Karma partition tableBob Copeland2006-01-161-0/+4
| | | | | | | | | | | | The Rio Karma portable MP3 player has its own proprietary partition table. The partition layout is similar to a DOS boot sector but it begins at a different offset and uses a different magic number (0xAB56 instead of 0xAA55). Add support for it to enable mounting the device. Signed-off-by: Bob Copeland <me@bobcopeland.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Driver core: Make block devices create the proper symlink nameGreg Kroah-Hartman2006-01-041-2/+25
| | | | | | | | | | Block devices need to add the block device name to the symlink they put in the device directory, otherwise multiple symlinks of the same name can be created. This matches the class system, which works the same way, we just forgot to convert block at the same time. Cc: Pete Zaitcev <zaitcev@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] driver core: replace "hotplug" by "uevent"Kay Sievers2006-01-041-3/+3
| | | | | | | | | Leave the overloaded "hotplug" word to susbsystems which are handling real devices. The driver core does not "plug" anything, it just exports the state to userspace and generates events. Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [BLOCK] Unify the seperate read/write io stat fields into arraysJens Axboe2005-11-011-3/+4
| | | | | | | | | | Instead of having ->read_sectors and ->write_sectors, combine the two into ->sectors[2] and similar for the other fields. This saves a branch several places in the io path, since we don't have to care for what the actual io direction is. On my x86-64 box, that's 200 bytes less text in just the core (not counting the various drivers). Signed-off-by: Jens Axboe <axboe@suse.de>
* Merge ../bleed-2.6Greg KH2005-10-281-1/+1
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| * [patch] remove gendisk->stamp_idle fieldChen, Kenneth W2005-10-281-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | struct gendisk has these two fields: stamp, stamp_idle. Update to stamp_idle is always in sync with stamp and they are always the same. Therefore, it does not add any value in having two fields tracking same timestamp. Suggest to remove it. Also, we should only update gendisk stats with non-zero value. Advantage is that we don't have to needlessly calculate memory address, and then add zero to the content. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Jens Axboe <axboe@suse.de>
* | [PATCH] add sysfs attr to re-emit device hotplug eventKay Sievers2005-10-281-1/+26
|/ | | | | | | | | | A "coldplug + udevstart" can be simple like this: for i in /sys/block/*/*/uevent; do echo 1 > $i; done for i in /sys/class/*/*/uevent; do echo 1 > $i; done for i in /sys/bus/*/devices/*/uevent; do echo 1 > $i; done Signed-off-by: Kay Sievers <kay.sievers@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* [PATCH] small partitions/msdos cleanupsAdrian Bunk2005-06-251-3/+0
| | | | | | | | | | | | This patch makes the following changes to the msdos partition code: - remove CONFIG_NEC98_PARTITION leftovers - make parse_bsd static This patch was already ACK'ed by Andries Brouwer. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] kobject/hotplug split - block corekay.sievers@vrfy.org2005-04-181-0/+2
| | | | | | | | | | kobject_add() and kobject_del() don't emit hotplug events anymore. Do it ourselves if we are finished populating the device directory. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* Linux-2.6.12-rc2Linus Torvalds2005-04-161-0/+445
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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