21 Jun, 2006

1 commit

  • * 'audit.b21' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current: (25 commits)
    [PATCH] make set_loginuid obey audit_enabled
    [PATCH] log more info for directory entry change events
    [PATCH] fix AUDIT_FILTER_PREPEND handling
    [PATCH] validate rule fields' types
    [PATCH] audit: path-based rules
    [PATCH] Audit of POSIX Message Queue Syscalls v.2
    [PATCH] fix se_sen audit filter
    [PATCH] deprecate AUDIT_POSSBILE
    [PATCH] inline more audit helpers
    [PATCH] proc_loginuid_write() uses simple_strtoul() on non-terminated array
    [PATCH] update of IPC audit record cleanup
    [PATCH] minor audit updates
    [PATCH] fix audit_krule_to_{rule,data} return values
    [PATCH] add filtering by ppid
    [PATCH] log ppid
    [PATCH] collect sid of those who send signals to auditd
    [PATCH] execve argument logging
    [PATCH] fix deadlocks in AUDIT_LIST/AUDIT_LIST_RULES
    [PATCH] audit_panic() is audit-internal
    [PATCH] inotify (5/5): update kernel documentation
    ...

    Manual fixup of conflict in unclude/linux/inotify.h

    Linus Torvalds
     

20 Jun, 2006

1 commit

  • In this implementation, audit registers inotify watches on the parent
    directories of paths specified in audit rules. When audit's inotify
    event handler is called, it updates any affected rules based on the
    filesystem event. If the parent directory is renamed, removed, or its
    filesystem is unmounted, audit removes all rules referencing that
    inotify watch.

    To keep things simple, this implementation limits location-based
    auditing to the directory entries in an existing directory. Given
    a path-based rule for /foo/bar/passwd, the following table applies:

    passwd modified -- audit event logged
    passwd replaced -- audit event logged, rules list updated
    bar renamed -- rule removed
    foo renamed -- untracked, meaning that the rule now applies to
    the new location

    Audit users typically want to have many rules referencing filesystem
    objects, which can significantly impact filtering performance. This
    patch also adds an inode-number-based rule hash to mitigate this
    situation.

    The patch is relative to the audit git tree:
    http://kernel.org/git/?p=linux/kernel/git/viro/audit-current.git;a=summary
    and uses the inotify kernel API:
    http://lkml.org/lkml/2006/6/1/145

    Signed-off-by: Amy Griffis
    Signed-off-by: Al Viro

    Amy Griffis
     

30 May, 2006

1 commit


16 May, 2006

3 commits

  • Signed-off-by: David Woodhouse

    David Woodhouse
     
  • When we fail to mount from a valid root device list out the filesystems we
    have tried to mount it with. This gives the user vital diagnostics as to
    what is missing from their kernel.

    For example in the fragment below the kernel does not have CRAMFS compiled
    into the kernel and yet appears to recognise it at the RAMDISK detect
    stage. Later the mount fails as we don't have the filesystem.

    RAMDISK: cramfs filesystem found at block 0
    RAMDISK: Loading 1604KiB [1 disk] into ram disk... done.
    XFS: bad magic number
    XFS: SB validate failed
    No filesystem could mount root, tried: reiserfs ext3 ext2 msdos vfat
    iso9660 jfs xfs
    Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(8,1)

    Signed-off-by: Andy Whitcroft
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andy Whitcroft
     
  • Copy the filenames of hardlinks when inserting them into the hash, since
    the "name" pointer may point to scratch space (name_buf). Not doing so
    results in corruption if the scratch space is later overwritten: the wrong
    file may be hardlinked, or, if the scratch space contains garbage, the link
    will fail and a 0-byte file will be created instead.

    Signed-off-by: Mark Huang
    Acked-by: Al Viro
    Cc: "H. Peter Anvin"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mark Huang
     

09 May, 2006

1 commit


02 May, 2006

1 commit

  • Suppress the initcall-return-value warnings unless initcall_debug was
    specified.

    They do find bugs, but they're extremely small ones and as Andi points out,
    people get distressed.

    Cc: Andi Kleen
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     

19 Apr, 2006

1 commit


11 Apr, 2006

1 commit


29 Mar, 2006

1 commit


27 Mar, 2006

4 commits

  • * git://git.kernel.org/pub/scm/linux/kernel/git/bunk/trivial:
    drivers/char/ftape/lowlevel/fdc-io.c: Correct a comment
    Kconfig help: MTD_JEDECPROBE already supports Intel
    Remove ugly debugging stuff
    do_mounts.c: Minor ROOT_DEV comment cleanup
    BUG_ON() Conversion in drivers/s390/block/dasd_devmap.c
    BUG_ON() Conversion in mm/mempool.c
    BUG_ON() Conversion in mm/memory.c
    BUG_ON() Conversion in kernel/fork.c
    BUG_ON() Conversion in ipc/sem.c
    BUG_ON() Conversion in fs/ext2/
    BUG_ON() Conversion in fs/hfs/
    BUG_ON() Conversion in fs/dcache.c
    BUG_ON() Conversion in fs/buffer.c
    BUG_ON() Conversion in input/serio/hp_sdc_mlc.c
    BUG_ON() Conversion in md/dm-table.c
    BUG_ON() Conversion in md/dm-path-selector.c
    BUG_ON() Conversion in drivers/isdn
    BUG_ON() Conversion in drivers/char
    BUG_ON() Conversion in drivers/mtd/

    Linus Torvalds
     
  • I noticed that after boot with an initrd in 2.6.16 the rootfs had:

    --w-r-xr-T 1 root root 6241141 Jan 1 1970 initrd.image

    Which is caused by a small typo:

    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jason Gunthorpe
     
  • Since the addition of boot_cpu_init(), fixup_cpu_present_map() has been a
    no-op. That's because fixup_cpu_present_map() won't touch cpu_present_map if
    it has any bits set, and boot_cpu_init() sets a bit.

    So remove fixup_cpu_present_map().

    A consequence of this (actually of the boot_cpu_init() change) is that the
    architecture _must_ populate cpu_present_map itself (probably in
    smp_prepare_cpus()). fixup_cpu_present_map() won't do it any more.

    If the architecture doesn't do this, it'll only bring up a single CPU.

    The other side effect (though less serious) is that smp_prepare_boot_cpu() no
    longer needs to mark the boot cpu in the online and present maps -
    boot_cpu_init() does that for everyone (to make early printks work).

    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     
  • The ROOT_DEV comment is no longer accurate, it now seems to be
    initialized in init/do_mounts.c.

    Signed-off-by: Florin Malita
    Signed-off-by: Adrian Bunk

    Florin Malita
     

26 Mar, 2006

5 commits

  • * master.kernel.org:/pub/scm/linux/kernel/git/sam/kbuild: (46 commits)
    kbuild: remove obsoleted scripts/reference_* files
    kbuild: fix make help & make *pkg
    kconfig: fix time ordering of writes to .kconfig.d and include/linux/autoconf.h
    Kconfig: remove the CONFIG_CC_ALIGN_* options
    kbuild: add -fverbose-asm to i386 Makefile
    kbuild: clean-up genksyms
    kbuild: Lindent genksyms.c
    kbuild: fix genksyms build error
    kbuild: in makefile.txt note that Makefile is preferred name for kbuild files
    kbuild: replace PHONY with FORCE
    kbuild: Fix bug in crc symbol generating of kernel and modules
    kbuild: change kbuild to not rely on incorrect GNU make behavior
    kbuild: when warning symbols exported twice now tell user this is the problem
    kbuild: fix make dir/file.xx when asm symlink is missing
    kbuild: in the section mismatch check try harder to find symbols
    kbuild: fix section mismatch check for unwind on IA64
    kbuild: kill false positives from section mismatch warnings for powerpc
    kbuild: kill trailing whitespace in modpost & friends
    kbuild: small update of allnoconfig description
    kbuild: make namespace.pl CROSS_COMPILE happy
    ...

    Trivial conflict in arch/ppc/boot/Makefile manually fixed up

    Linus Torvalds
     
  • Initramfs initrd images do not need a ramdisk device, so remove this
    restriction in Kconfig. BLK_DEV_RAM=n saves about 13k on i386. Also
    without ramdisk device there's no need for "dry run", so initramfs unpacks
    much faster.

    People using cramfs, squashfs, or gzipped ext2/minix initrd images are
    probably smart enough not to turn off ramdisk support by accident.

    Cc: Al Viro
    Cc: Christoph Hellwig
    Cc: "H. Peter Anvin"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Zdenek Pavlas
     
  • This patch adds a proper prototype for setup_arch() in init.h.

    This patch is based on a patch by Ben Dooks .

    Signed-off-by: Adrian Bunk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     
  • We presently ignore the return values from initcalls. But that can carry
    useful debugging information. So print it out if it's non-zero.

    It turns out the -ENODEV happens quite a lot, due to built-in drivers which
    have no hardware to drive. So suppress that unless initcall_debug was
    specified.

    Also make the warning message more friendly by printing the name of the
    initcall function.

    Also drop the KERN_DEBUG from the initcall_debug message. If we specified
    inticall_debug then we obviously want to see the messages.

    Acked-by: Paul Jackson
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     
  • MODULE_PARM was actually breaking: recent gcc version optimize them out as
    unused. It's time to replace the last users, which are generally in the
    most unloved drivers anyway.

    Signed-off-by: Rusty Russell
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Rusty Russell
     

24 Mar, 2006

2 commits

  • The meaning of MS_VERBOSE is backwards; if the bit is set, it really means,
    "don't be verbose". This is confusing and counter-intuitive.

    In addition, there is also no way to set the MS_VERBOSE flag in the
    mount(8) program in util-linux, but interesting, it does define options
    which would do the right thing if MS_SILENT were defined, which
    unfortunately we do not:

    #ifdef MS_SILENT
    { "quiet", 0, 0, MS_SILENT }, /* be quiet */
    { "loud", 0, 1, MS_SILENT }, /* print out messages. */
    #endif

    So the obvious fix is to deprecate the use of MS_VERBOSE and replace it
    with MS_SILENT.

    Signed-off-by: "Theodore Ts'o"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Theodore Ts'o
     
  • Original patch from Paul Mundt, sysfs parts removed by me since they
    were broken.

    Signed-off-by: Jens Axboe

    Jens Axboe
     

23 Mar, 2006

4 commits

  • Now CONFIG_DEBUG_INITDATA is in, initial percpu data
    [__per_cpu_start,__per_cpu_end] can be declared as a redzone, and invalid
    accesses after boot can be detected, at least for i386.

    We can let non possible cpus percpu data point to this 'redzone' instead of
    NULL .

    NULL was not a good choice because part of [0..32768] memory may be
    readable and invalid accesses may happen unnoticed.

    If CONFIG_DEBUG_INITDATA is not defined, each non possible cpu points to
    the initial percpu data (__per_cpu_offset[cpu] == 0), thus invalid accesses
    wont be detected/crash.

    This patch also moves __per_cpu_offset[] to read_mostly area to avoid false
    sharing.

    Signed-off-by: Eric Dumazet
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Eric Dumazet
     
  • percpu_data blindly allocates bootmem memory to store NR_CPUS instances of
    cpudata, instead of allocating memory only for possible cpus.

    This patch saves ram, allocating num_possible_cpus() (instead of NR_CPUS)
    instances.

    Signed-off-by: Eric Dumazet
    Acked-by: "David S. Miller"
    Cc: James Bottomley
    Cc: Jens Axboe
    Acked-by: Ingo Molnar
    Cc: Jens Axboe
    Cc: Anton Blanchard
    Acked-by: William Irwin
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Eric Dumazet
     
  • This patch introduces a user space interface for swsusp.

    The interface is based on a special character device, called the snapshot
    device, that allows user space processes to perform suspend and resume-related
    operations with the help of some ioctls and the read()/write() functions.
     Additionally it allows these processes to allocate free swap pages from a
    selected swap partition, called the resume partition, so that they know which
    sectors of the resume partition are available to them.

    The interface uses the same low-level system memory snapshot-handling
    functions that are used by the built-it swap-writing/reading code of swsusp.

    The interface documentation is included in the patch.

    The patch assumes that the major and minor numbers of the snapshot device will
    be 10 (ie. misc device) and 231, the registration of which has already been
    requested.

    Signed-off-by: Rafael J. Wysocki
    Acked-by: Pavel Machek
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Rafael J. Wysocki
     
  • Register the boot-cpu in the cpu maps earlier to allow the early printk to
    work, and to fix an obscure deadlock at boot.

    Signed-off-by: Stas Sergeev
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Stas Sergeev
     

13 Mar, 2006

1 commit

  • I don't see any use case for the CONFIG_CC_ALIGN_* options:
    - they are only available if EMBEDDED
    - people using EMBEDDED will most likely also enable
    CC_OPTIMIZE_FOR_SIZE
    - the default for -Os is to disable alignment

    In case someone is doing performance comparisons and discovers that the
    default settings gcc chooses aren't good, the only sane thing is to discuss
    whether it makes sense to change this, not through offering options to change
    this locally.

    Signed-off-by: Adrian Bunk
    Signed-off-by: Andrew Morton
    Signed-off-by: Sam Ravnborg

    Adrian Bunk
     

11 Feb, 2006

2 commits

  • Remove bogus comment from init function which could lead to the assumption
    that cpu_possible_map is setup in smp_prepare_cpus().

    Signed-off-by: Heiko Carstens
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Heiko Carstens
     
  • It is possible that the reserved crashkernel region can be overlapped with
    initrd since the bootloader sets the initrd location. When the initrd
    region is freed, the second kernel memory will not be contiguous. The
    Kexec_load can cause an oops since there is no contiguous memory to write
    the second kernel or this memory could be used in the first kernel itself
    and may not be part of the dump. For example, on powerpc, the initrd is
    located at 36MB and the crashkernel starts at 32MB. The kexec_load caused
    panic since writing into non-allocated memory (after 36MB). We could see
    the similar issue even on other archs.

    One possibility is to move the initrd outside of crashkernel region. But,
    the initrd region will be freed anyway before the system is up. This patch
    fixes this issue and frees only regions that are not part of crashkernel
    memory in case overlaps.

    Signed-off-by: Haren Myneni
    Acked-by: "Eric W. Biederman"
    Cc: Vivek Goyal
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Haren Myneni
     

08 Feb, 2006

1 commit

  • Make SELinux depend on AUDIT as it requires the basic audit support to log
    permission denials at all. Note that AUDITSYSCALL remains optional for
    SELinux, although it can be useful in providing further information upon
    denials.

    Signed-off-by: Stephen Smalley
    Acked-by: James Morris
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Stephen Smalley
     

04 Feb, 2006

1 commit

  • Do not allow people to create configurations with CONFIG_BROKEN=y.

    The sole reason for CONFIG_BROKEN=y would be if you are working on fixing a
    broken driver, but in this case editing the Kconfig file is trivial.

    Never ever should a user enable CONFIG_BROKEN.

    Signed-off-by: Adrian Bunk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

17 Jan, 2006

1 commit


16 Jan, 2006

1 commit


15 Jan, 2006

2 commits


12 Jan, 2006

1 commit


11 Jan, 2006

2 commits

  • hrtimer subsystem core. It is initialized at bootup and expired by the timer
    interrupt, but is otherwise not utilized by any other subsystem yet.

    Signed-off-by: Thomas Gleixner
    Signed-off-by: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Thomas Gleixner
     
  • It seems the "make UID16 support optional" patch was checked when it
    edited the -tiny tree some time ago, but it wasn't checked whether it
    still matches the current situation when it was submitted for inclusion
    in -mm. This patch fixes the following bugs:
    - ARCH_S390X does no longer exist, nowadays this has to be expressed
    through (S390 && 64BIT)
    - in five architecture specific Kconfig files the UID16 options
    weren't removed

    Additionally, it changes the fragile negative dependencies of UID16 to
    positive dependencies (new architectures are more likely to not require
    UID16 support).

    Signed-off-by: Adrian Bunk
    Acked-by: Matt Mackall
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Adrian Bunk
     

09 Jan, 2006

2 commits

  • This adds an option to remove vm86 support under CONFIG_EMBEDDED. Saves
    about 5k.

    This version eliminates most of the #ifdefs of the previous version and
    instead uses function stubs in vm86.h. Also, release_vm86_irqs is moved
    from asm-i386/irq.h to a more appropriate home in vm86.h so that the stubs
    can live together.

    $ size vmlinux-baseline vmlinux-novm86
    text data bss dec hex filename
    2920821 523232 190652 3634705 377611 vmlinux-baseline
    2916268 523100 190492 3629860 376324 vmlinux-novm86

    Signed-off-by: Matt Mackall
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Mackall
     
  • configurable support for ELF core dumps

    text data bss dec hex filename
    3330172 529036 190556 4049764 3dcb64 vmlinux-baseline
    3325552 528912 190556 4045020 3db8dc vmlinux-no-elf

    add/remove: 0/8 grow/shrink: 0/0 up/down: 0/-4424 (-4424)
    function old new delta
    fill_note 32 - -32
    maydump 58 - -58
    dump_seek 67 - -67
    writenote 180 - -180
    elf_dump_thread_status 274 - -274
    fill_psinfo 308 - -308
    fill_prstatus 466 - -466
    elf_core_dump 3039 - -3039

    Signed-off-by: Matt Mackall
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matt Mackall