1. 26 Mar, 2009 12 commits
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6 · 928a726b
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (96 commits)
        sh: add support for SMSC Polaris platform
        sh: fix the HD64461 level-triggered interrupts handling
        sh: sh-rtc wakeup support
        sh: sh-rtc invalid time rework
        sh: sh-rtc carry interrupt rework
        sh: disallow kexec virtual entry
        sh: kexec jump: fix for ftrace.
        sh: kexec: Drop SR.BL bit toggling.
        sh: add kexec jump support
        sh: rework kexec segment code
        sh: simplify kexec vbr code
        sh: Flush only the needed range when unmapping a VMA.
        sh: Update debugfs ASID dumping for 16-bit ASID support.
        sh: tlb-pteaex: Kill off legacy PTEA updates.
        sh: Support for extended ASIDs on PTEAEX-capable SH-X3 cores.
        sh: sh7763rdp: Change IRQ number for sh_eth of sh7763rdp
        sh: espt-giga board support
        sh: dma: Make G2 DMA configurable.
        sh: dma: Make PVR2 DMA configurable.
        sh: Move IRQ multi definition of DMAC to defconfig
        ...
      928a726b
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw · 8ff64b53
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw:
        GFS2: Fix freeze issue
        Fix a minor bug in the previous patch
        GFS2: Clean up of glops.c
        GFS2: Fix locking bug in failed shared to exclusive conversion
        GFS2: Pagecache usage optimization on GFS2
        GFS2: fix sparse warning: Should it be static?
        GFS2: fix sparse warnings: constant is so big it is ...
        GFS2: Support quota/noquota mount arguments
        GFS2: Fix alignment issue and tidy gfs2_bitfit
        GFS2: Add a "demote a glock" interface to sysfs
        GFS2: Expose UUID via sysfs/uevent
        GFS2: Support generation of discard requests
        GFS2: Fix deadlock on journal flush
        GFS2: Fix error path ref counting for root inode
        GFS2: Remove unused field from glock
        GFS2: Merge lock_dlm module into GFS2
        GFS2: Remove "double" locking in quota
        GFS2: change gfs2_quota_scan into a shrinker
        GFS2: Bring back lvb-related stuff to lock_nolock to support quotas
        GFS2: Fix remount argument parsing
      8ff64b53
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6 · 61a9dc26
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
        avr32: remove duplicated #include
        avr32: fix out-of-range rjmp instruction on large kernels
        avr32: Fix out-of-range rcalls in large kernels
      61a9dc26
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 · 50201253
      Linus Torvalds authored
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (430 commits)
        ALSA: hda - Add quirk for Acer Ferrari 5000
        ALSA: hda - Use cached calls to get widget caps and pin caps
        ALSA: hda - Don't create empty/single-item input source
        ALSA: hda - Fix the wrong pin-cap check in patch_realtek.c
        ALSA: hda - Cache pin-cap values
        ALSA: hda - Avoid output amp manipulation to digital mic pins
        ALSA: hda - Add function id to proc output
        ALSA: pcm - Safer boundary checks
        ALSA: hda - Detect digital-mic inputs on ALC663 / ALC272
        ALSA: sound/ali5451: typo: s/resouces/resources/
        ALSA: hda - Don't show the current connection for power widgets
        ALSA: Fix wrong pointer to dev_err() in arm/pxa2xx-ac97-lib.c
        ASoC: Declare Headset as Mic and Headphone widgets for SDP3430
        ASoC: OMAP: N810: Add more jack functions
        ASoC: OMAP: N810: Mark not connected input pins
        ASoC: Add FLL support for WM8400
        ALSA: hda - Don't reset stream at each prepare callback
        ALSA: hda - Don't reset BDL unnecessarily
        ALSA: pcm - Fix delta calculation at boundary overlap
        ALSA: pcm - Reset invalid position even without debug option
        ...
      50201253
    • Linus Torvalds's avatar
      Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 · 562f477a
      Linus Torvalds authored
      * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (29 commits)
        crypto: sha512-s390 - Add missing block size
        hwrng: timeriomem - Breaks an allyesconfig build on s390:
        nlattr: Fix build error with NET off
        crypto: testmgr - add zlib test
        crypto: zlib - New zlib crypto module, using pcomp
        crypto: testmgr - Add support for the pcomp interface
        crypto: compress - Add pcomp interface
        netlink: Move netlink attribute parsing support to lib
        crypto: Fix dead links
        hwrng: timeriomem - New driver
        crypto: chainiv - Use kcrypto_wq instead of keventd_wq
        crypto: cryptd - Per-CPU thread implementation based on kcrypto_wq
        crypto: api - Use dedicated workqueue for crypto subsystem
        crypto: testmgr - Test skciphers with no IVs
        crypto: aead - Avoid infinite loop when nivaead fails selftest
        crypto: skcipher - Avoid infinite loop when cipher fails selftest
        crypto: api - Fix crypto_alloc_tfm/create_create_tfm return convention
        crypto: api - crypto_alg_mod_lookup either tested or untested
        crypto: amcc - Add crypt4xx driver
        crypto: ansi_cprng - Add maintainer
        ...
      562f477a
    • Linus Torvalds's avatar
      Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq · ada19a31
      Linus Torvalds authored
      * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: (35 commits)
        [CPUFREQ] Prevent p4-clockmod from auto-binding to the ondemand governor.
        [CPUFREQ] Make cpufreq-nforce2 less obnoxious
        [CPUFREQ] p4-clockmod reports wrong frequency.
        [CPUFREQ] powernow-k8: Use a common exit path.
        [CPUFREQ] Change link order of x86 cpufreq modules
        [CPUFREQ] conservative: remove 10x from def_sampling_rate
        [CPUFREQ] conservative: fixup governor to function more like ondemand logic
        [CPUFREQ] conservative: fix dbs_cpufreq_notifier so freq is not locked
        [CPUFREQ] conservative: amend author's email address
        [CPUFREQ] Use swap() in longhaul.c
        [CPUFREQ] checkpatch cleanups for acpi-cpufreq
        [CPUFREQ] powernow-k8: Only print error message once, not per core.
        [CPUFREQ] ondemand/conservative: sanitize sampling_rate restrictions
        [CPUFREQ] ondemand/conservative: deprecate sampling_rate{min,max}
        [CPUFREQ] powernow-k8: Always compile powernow-k8 driver with ACPI support
        [CPUFREQ] Introduce /sys/devices/system/cpu/cpu*/cpufreq/cpuinfo_transition_latency
        [CPUFREQ] checkpatch cleanups for powernow-k8
        [CPUFREQ] checkpatch cleanups for ondemand governor.
        [CPUFREQ] checkpatch cleanups for powernow-k7
        [CPUFREQ] checkpatch cleanups for speedstep related drivers.
        ...
      ada19a31
    • Linus Torvalds's avatar
      Merge branch 'for-linus' of... · 8d80ce80
      Linus Torvalds authored
      Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6
      
      * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: (71 commits)
        SELinux: inode_doinit_with_dentry drop no dentry printk
        SELinux: new permission between tty audit and audit socket
        SELinux: open perm for sock files
        smack: fixes for unlabeled host support
        keys: make procfiles per-user-namespace
        keys: skip keys from another user namespace
        keys: consider user namespace in key_permission
        keys: distinguish per-uid keys in different namespaces
        integrity: ima iint radix_tree_lookup locking fix
        TOMOYO: Do not call tomoyo_realpath_init unless registered.
        integrity: ima scatterlist bug fix
        smack: fix lots of kernel-doc notation
        TOMOYO: Don't create securityfs entries unless registered.
        TOMOYO: Fix exception policy read failure.
        SELinux: convert the avc cache hash list to an hlist
        SELinux: code readability with avc_cache
        SELinux: remove unused av.decided field
        SELinux: more careful use of avd in avc_has_perm_noaudit
        SELinux: remove the unused ae.used
        SELinux: check seqno when updating an avc_node
        ...
      8d80ce80
    • Linus Torvalds's avatar
      Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus · 1646df40
      Linus Torvalds authored
      * 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus:
        MIPS: R2: Fix problem with code that incorrectly modifies ebase.
        MIPS: Change {set,clear,change}_c0_<foo> to return old value.
        MIPS: compat: Remove duplicated #include
        MIPS: VR5500: Enable prefetch
        MIPS: Fix oops in dma_unmap_page on not coherent mips platforms
      1646df40
    • Wu Fengguang's avatar
      writeback: double the dirty thresholds · 1b5e62b4
      Wu Fengguang authored
      Enlarge default dirty ratios from 5/10 to 10/20.  This fixes [Bug
      #12809] iozone regression with 2.6.29-rc6.
      
      The iozone benchmarks are performed on a 1200M file, with 8GB ram.
      
        iozone -i 0 -i 1 -i 2 -i 3 -i 4 -r 4k -s 64k -s 512m -s 1200m -b tmp.xls
        iozone -B -r 4k -s 64k -s 512m -s 1200m -b tmp.xls
      
      The performance regression is triggered by commit 1cf6e7d8(mm: task
      dirty accounting fix), which makes more correct/thorough dirty
      accounting.
      
      The default 5/10 dirty ratios were picked (a) with the old dirty logic
      and (b) largely at random and (c) designed to be aggressive.  In
      particular, that (a) means that having fixed some of the dirty
      accounting, maybe the real bug is now that it was always too aggressive,
      just hidden by an accounting issue.
      
      The enlarged 10/20 dirty ratios are just about enough to fix the regression.
      
      [ We will have to look at how this affects the old fsync() latency issue,
        but that probably will need independent work.  - Linus ]
      
      Cc: Nick Piggin <npiggin@suse.de>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Reported-by: default avatar"Lin, Ming M" <ming.m.lin@intel.com>
      Tested-by: default avatar"Lin, Ming M" <ming.m.lin@intel.com>
      Signed-off-by: default avatarWu Fengguang <fengguang.wu@intel.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      1b5e62b4
    • Matthew Garrett's avatar
      Make relatime default · 0a1c01c9
      Matthew Garrett authored
      Change the default behaviour of the kernel to use relatime for all
      filesystems. This can be overridden with the "strictatime" mount
      option.
      Signed-off-by: default avatarMatthew Garrett <mjg@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      0a1c01c9
    • Matthew Garrett's avatar
      Add a strictatime mount option · d0adde57
      Matthew Garrett authored
      Add support for explicitly requesting full atime updates. This makes it
      possible for kernels to default to relatime but still allow userspace to
      override it.
      Signed-off-by: default avatarMatthew Garrett <mjg@redhat.com>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      d0adde57
    • Matthew Garrett's avatar
      Allow relatime to update atime once a day · 11ff6f05
      Matthew Garrett authored
      Allow atime to be updated once per day even with relatime. This lets
      utilities like tmpreaper (which delete files based on last access time)
      continue working, making relatime a plausible default for distributions.
      Signed-off-by: default avatarMatthew Garrett <mjg@redhat.com>
      Reviewed-by: default avatarMatthew Wilcox <willy@linux.intel.com>
      Acked-by: default avatarValerie Aurora Henson <vaurora@redhat.com>
      Acked-by: default avatarAlan Cox <alan@redhat.com>
      Acked-by: default avatarIngo Molnar <mingo@elte.hu>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      11ff6f05
  2. 24 Mar, 2009 21 commits
    • Steven Whitehouse's avatar
      GFS2: Fix freeze issue · df3647b2
      Steven Whitehouse authored
      This removes some old code that was causing issues during
      filesystem freeze.
      Reported-by: Andrew Price's avatarAndrew Price <andy@andrewprice.me.uk>
      Tested-by: Andrew Price's avatarAndrew Price <andy@andrewprice.me.uk>
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      df3647b2
    • Steven Whitehouse's avatar
      Fix a minor bug in the previous patch · 9c538837
      Steven Whitehouse authored
      The logic requires that we mark the glock dirty in page_mkwrite
      otherwise we might not flush correctly in the case that no
      allocation was required in the process of dirying the page.
      Also we need to set the shared write flag early for the same
      reason.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      9c538837
    • Steven Whitehouse's avatar
      GFS2: Clean up of glops.c · 6bac243f
      Steven Whitehouse authored
      This cleans up a number of bits of code mostly based in glops.c.
      A couple of simple functions have been merged into the callers
      to make it more obvious what is going on, the mysterious raising
      of i_writecount around the truncate_inode_pages() call has been
      removed. The meta_go_* operations have been renamed rgrp_go_*
      since that is the only lock type that they are used with.
      
      The unused argument of gfs2_read_sb has been removed. Also
      a bug has been fixed where a check for the rindex inode was
      in the wrong callback. More comments are added, and the
      debugging code is improved too.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      6bac243f
    • Benjamin Marzinski's avatar
      GFS2: Fix locking bug in failed shared to exclusive conversion · 02ffad08
      Benjamin Marzinski authored
      After calling out to the dlm, GFS2 sets the new state of a glock to
      gl_target in gdlm_ast().  However, gl_target is not always the lock
      state that was requested. If a conversion from shared to exclusive
      fails, finish_xmote() will call do_xmote() with LM_ST_UNLOCKED, instead
      of gl->gl_target, so that it can reacquire the lock in exlusive the next
      time around.  In this case, setting the lock to gl_target in gdlm_ast()
      will make GFS2 think that it has the glock in exclusive mode, when
      really, it doesn't have the glock locked at all.  This patch adds a new
      field to the gfs2_glock structure, gl_req, to track the mode that was
      requested.
      Signed-off-by: default avatarBenjamin Marzinski <bmarzins@redhat.com>
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      02ffad08
    • Hisashi Hifumi's avatar
      GFS2: Pagecache usage optimization on GFS2 · 229615de
      Hisashi Hifumi authored
      I introduced "is_partially_uptodate" aops for GFS2.
      
      A page can have multiple buffers and even if a page is not uptodate, some buffers
      can be uptodate on pagesize != blocksize environment.
      This aops checks that all buffers which correspond to a part of a file
      that we want to read are uptodate. If so, we do not have to issue actual
      read IO to HDD even if a page is not uptodate because the portion we
      want to read are uptodate.
      "block_is_partially_uptodate" function is already used by ext2/3/4.
      With the following patch random read/write mixed workloads or random read after
      random write workloads can be optimized and we can get performance improvement.
      
      I did a performance test using the sysbench.
      
      #sysbench --num-threads=16 --max-requests=200000 --test=fileio --file-num=1
      --file-block-size=8K --file-total-size=2G --file-test-mode=rndrw --file-fsync-freq=0
      --file-rw-ratio=1 run
      
      -2.6.29-rc6
      Test execution summary:
          total time:                          202.6389s
          total number of events:              200000
          total time taken by event execution: 2580.0480
          per-request statistics:
               min:                            0.0000s
               avg:                            0.0129s
               max:                            49.5852s
               approx.  95 percentile:         0.0462s
      
      -2.6.29-rc6-patched
      Test execution summary:
          total time:                          177.8639s
          total number of events:              200000
          total time taken by event execution: 2419.0199
          per-request statistics:
               min:                            0.0000s
               avg:                            0.0121s
               max:                            52.4306s
               approx.  95 percentile:         0.0444s
      
      arch: ia64
      pagesize: 16k
      blocksize: 4k
      Signed-off-by: default avatarHisashi Hifumi <hifumi.hisashi@oss.ntt.co.jp>
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      229615de
    • Hannes Eder's avatar
      GFS2: fix sparse warning: Should it be static? · 02ab1721
      Hannes Eder authored
      Impact: Make symbol static.
      
      Fix this sparse warning:
        fs/gfs2/rgrp.c:188:5: warning: symbol 'gfs2_bitfit' was not declared. Should it be static?
      Signed-off-by: default avatarHannes Eder <hannes@hanneseder.net>
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      02ab1721
    • Hannes Eder's avatar
      GFS2: fix sparse warnings: constant is so big it is ... · 075ac448
      Hannes Eder authored
      Fix this sparse warnings:
        fs/gfs2/rgrp.c:156:23: warning: constant 0xffffffffffffffff is so big it is unsigned long long
        fs/gfs2/rgrp.c:157:23: warning: constant 0xaaaaaaaaaaaaaaaa is so big it is unsigned long long
        fs/gfs2/rgrp.c:158:23: warning: constant 0x5555555555555555 is so big it is long long
        fs/gfs2/rgrp.c:194:20: warning: constant 0x5555555555555555 is so big it is long long
        fs/gfs2/rgrp.c:204:44: warning: constant 0x5555555555555555 is so big it is long long
      Signed-off-by: default avatarHannes Eder <hannes@hanneseder.net>
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      075ac448
    • Steven Whitehouse's avatar
      GFS2: Support quota/noquota mount arguments · b9a96945
      Steven Whitehouse authored
      This adds support for "quota" and "noquota" mount options in addition to the
      existing "quota=on/off/account" so that we are compatible with the names by
      which these options are more generally known.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      b9a96945
    • Steven Whitehouse's avatar
      GFS2: Fix alignment issue and tidy gfs2_bitfit · 223b2b88
      Steven Whitehouse authored
      An alignment issue with the existing bitfit algorithm was reported
      on IA64. This patch attempts to fix that, and also to tidy up the
      code a bit. There is now more documentation about how this works
      and it has survived a number of different tests.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      223b2b88
    • Steven Whitehouse's avatar
      GFS2: Add a "demote a glock" interface to sysfs · 64d576ba
      Steven Whitehouse authored
      This adds a sysfs file called demote_rq to GFS2's
      per filesystem directory. Its possible to use this
      file to demote arbitrary glocks in exactly the same
      way as if a request had come in from a remote node.
      
      This is intended for testing issues relating to caching
      of data under glocks. Despite that, the interface is
      generic enough to send requests to any type of glock,
      but be careful as its not always safe to send an
      arbitrary message to an arbitrary glock. For that reason
      and to prevent DoS, this interface is restricted to root
      only.
      
      The messages look like this:
      
      <type>:<glocknumber> <mode>
      
      Example:
      
      echo -n "2:13324 EX" >/sys/fs/gfs2/unity:myfs/demote_rq
      
      Which means "please demote inode glock (type 2) number 13324 so that
      I can get an EX (exclusive) lock". The lock modes are those which
      would normally be sent by a remote node in its callback so if you
      want to unlock a glock, you use EX, to demote to shared, use SH or PR
      (depending on whether you like GFS2 or DLM lock modes better!).
      
      If the glock doesn't exist, you'll get -ENOENT returned. If the
      arguments don't make sense, you'll get -EINVAL returned.
      
      The plan is that this interface will be used in combination with
      the blktrace patch which I recently posted for comments although
      it is, of course, still useful in its own right.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      64d576ba
    • Steven Whitehouse's avatar
      GFS2: Expose UUID via sysfs/uevent · 02e3cc70
      Steven Whitehouse authored
      Since we have a UUID, we ought to expose it to the user via sysfs
      and uevents. We already have the fs name in both of these places
      (a combination of the lock proto and lock table name) so if we add
      the UUID as well, we have a full set.
      
      For older filesystems (i.e. those created before mkfs.gfs2 was writing
      UUIDs by default) the sysfs file will appear zero length, and no UUID
      env var will be added to the uevents.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      02e3cc70
    • Steven Whitehouse's avatar
      GFS2: Support generation of discard requests · f15ab561
      Steven Whitehouse authored
      This patch allows GFS2 to generate discard requests for blocks which are
      no longer useful to the filesystem (i.e. those which have been freed as
      the result of an unlink operation). The requests are generated at the
      time which those blocks become available for reuse in the filesystem.
      
      In order to use this new feature, you have to specify the "discard"
      mount option. The code coalesces adjacent blocks into a single extent
      when generating the discard requests, thus generating the minimum
      number.
      
      If an error occurs when the request has been sent to the block device,
      then it will print a message and turn off the requests for that
      filesystem. If the problem is temporary, then you can use remount to
      turn the option back on again. There is also a nodiscard mount option
      so that you can use remount to turn discard requests off, if required.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      f15ab561
    • Steven Whitehouse's avatar
      GFS2: Fix deadlock on journal flush · d8348de0
      Steven Whitehouse authored
      This patch fixes a deadlock when the journal is flushed and there
      are dirty inodes other than the one which caused the journal flush.
      Originally the journal flushing code was trying to obtain the
      transaction glock while running the flush code for an inode glock.
      We no longer require the transaction glock at this point in time
      since we know that any attempt to get the transaction glock from
      another node will result in a journal flush. So if we are flushing
      the journal, we can be sure that the transaction lock is still
      cached from when the transaction was started.
      
      By inlining a version of gfs2_trans_begin() (minus the bit which
      gets the transaction glock) we can avoid the deadlock problems
      caused if there is a demote request queued up on the transaction
      glock.
      
      In addition I've also moved the umount rwsem so that it covers
      the glock workqueue, since it all demotions are done by this
      workqueue now. That fixes a bug on umount which I came across
      while fixing the original problem.
      Reported-by: David Teigland's avatarDavid Teigland <teigland@redhat.com>
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      d8348de0
    • Steven Whitehouse's avatar
      GFS2: Fix error path ref counting for root inode · e7c8707e
      Steven Whitehouse authored
      We were keeping hold of an extra ref to the root inode in one
      of the error paths, that resulted in a hang.
      Reported-by: default avatarNate Straz <nstraz@redhat.com>
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      Tested-by: default avatarRobert Peterson <rpeterso@redhat.com>
      e7c8707e
    • Steven Whitehouse's avatar
      GFS2: Remove unused field from glock · ac2425e7
      Steven Whitehouse authored
      The time stamp field is unused in the glock now that we are
      using a shrinker, so that we can remove it and save sizeof(unsigned long)
      bytes in each glock.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      ac2425e7
    • Steven Whitehouse's avatar
      GFS2: Merge lock_dlm module into GFS2 · f057f6cd
      Steven Whitehouse authored
      This is the big patch that I've been working on for some time
      now. There are many reasons for wanting to make this change
      such as:
       o Reducing overhead by eliminating duplicated fields between structures
       o Simplifcation of the code (reduces the code size by a fair bit)
       o The locking interface is now the DLM interface itself as proposed
         some time ago.
       o Fewer lookups of glocks when processing replies from the DLM
       o Fewer memory allocations/deallocations for each glock
       o Scope to do further optimisations in the future (but this patch is
         more than big enough for now!)
      
      Please note that (a) this patch relates to the lock_dlm module and
      not the DLM itself, that is still a separate module; and (b) that
      we retain the ability to build GFS2 as a standalone single node
      filesystem with out requiring the DLM.
      
      This patch needs a lot of testing, hence my keeping it I restarted
      my -git tree after the last merge window. That way, this has the maximum
      exposure before its merged. This is (modulo a few minor bug fixes) the
      same patch that I've been posting on and off the the last three months
      and its passed a number of different tests so far.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      f057f6cd
    • Steven Whitehouse's avatar
      GFS2: Remove "double" locking in quota · 22077f57
      Steven Whitehouse authored
      We only really need a single spin lock for the quota data, so
      lets just use the lru lock for now.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      Cc: Abhijith Das <adas@redhat.com>
      22077f57
    • Abhijith Das's avatar
      GFS2: change gfs2_quota_scan into a shrinker · 0a7ab79c
      Abhijith Das authored
      Deallocation of gfs2_quota_data objects now happens on-demand through a
      shrinker instead of routinely deallocating through the quotad daemon.
      Signed-off-by: default avatarAbhijith Das <adas@redhat.com>
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      0a7ab79c
    • Abhijith Das's avatar
      GFS2: Bring back lvb-related stuff to lock_nolock to support quotas · 2db2aac2
      Abhijith Das authored
      The quota code uses lvbs and this is currently not implemented in
      lock_nolock, thereby causing panics when quota is enabled with
      lock_nolock. This patch adds the relevant bits.
      Signed-off-by: default avatarAbhijith Das <adas@redhat.com>
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      2db2aac2
    • Steven Whitehouse's avatar
      GFS2: Fix remount argument parsing · 6f04c1c7
      Steven Whitehouse authored
      The following patch fixes an issue relating to remount and argument
      parsing. After this fix is applied, remount becomes atomic in that
      it either succeeds changing the mount to the new state, or it fails
      and leaves it in the old state. Previously it was possible for the
      parsing of options to fail part way though and for the fs to be left
      in a state where some of the new arguments had been applied, but some
      had not.
      Signed-off-by: Steven Whitehouse's avatarSteven Whitehouse <swhiteho@redhat.com>
      6f04c1c7
    • Huang Weiyi's avatar
      avr32: remove duplicated #include · 5201b0a4
      Huang Weiyi authored
      Remove duplicated #include in arch/avr32/boards/hammerhead/flash.c.
      Signed-off-by: default avatarHuang Weiyi <weiyi.huang@gmail.com>
      Acked-by: default avatarAlex Raimondi <mailinglist@miromico.ch>
      Signed-off-by: default avatarHaavard Skinnemoen <haavard.skinnemoen@atmel.com>
      5201b0a4
  3. 23 Mar, 2009 7 commits