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  1. 04 Jul, 2008 1 commit
  3. 30 Apr, 2008 1 commit
  5. 23 Apr, 2008 8 commits
  7. 18 Apr, 2008 1 commit
  9. 17 Apr, 2008 1 commit
  11. 11 Apr, 2008 1 commit
  13. 19 Mar, 2008 3 commits
  15. 07 Feb, 2008 2 commits
    • James Lentini's avatar
      SUNRPC xptrdma: simplify build configuration · 3211e4eb
      James Lentini authored 
      

Trond and Bruce,

This is a patch for 2.6.25. This is the same version that was sent out
on December 12 for review (no comments to date).

To simplify the RPC/RDMA client and server build configuration, make
SUNRPC_XPRT_RDMA a hidden config option that continues to depend on
SUNRPC and INFINIBAND. The value of SUNRPC_XPRT_RDMA will be:

 - N if either SUNRPC or INFINIBAND are N
 - M if both SUNRPC and INFINIBAND are on (M or Y) and at least one is M
 - Y if both SUNRPC and INFINIBAND are Y

In 2.6.25, all of the RPC/RDMA related files are grouped in
net/sunrpc/xprtrdma and the net/sunrpc/xprtrdma/Makefile builds both
the client and server RPC/RDMA support using this config option.
Signed-off-by: default avatarJames Lentini <jlentini@netapp.com>
Signed-off-by: default avatarTrond Myklebust <Trond.Myklebust@netapp.com>
      3211e4eb
    • Randy Dunlap's avatar
      fs menu: small reorg · 25fad945
      Randy Dunlap authored 
      
- move minixfs and ROMfs to the Miscellaneous filesystems menu
- move DNOTIFY config symbol so that it is adjacent to INOTIFY
  instead of being split by the QUOTA config options
- add some 'endif' annotations
- remove some whitespace (extra blank lines)
Signed-off-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      25fad945
  17. 05 Feb, 2008 1 commit
  19. 01 Feb, 2008 1 commit
  21. 28 Jan, 2008 1 commit
    • Girish Shilamkar's avatar
      ext4: Add the journal checksum feature · 818d276c
      Girish Shilamkar authored 
      
The journal checksum feature adds two new flags i.e
JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and JBD2_FEATURE_COMPAT_CHECKSUM.

JBD2_FEATURE_CHECKSUM flag indicates that the commit block contains the
checksum for the blocks described by the descriptor blocks.
Due to checksums, writing of the commit record no longer needs to be
synchronous. Now commit record can be sent to disk without waiting for
descriptor blocks to be written to disk. This behavior is controlled
using JBD2_FEATURE_ASYNC_COMMIT flag. Older kernels/e2fsck should not be
able to recover the journal with _ASYNC_COMMIT hence it is made
incompat.
The commit header has been extended to hold the checksum along with the
type of the checksum.

For recovery in pass scan checksums are verified to ensure the sanity
and completeness(in case of _ASYNC_COMMIT) of every transaction.
Signed-off-by: default avatarAndreas Dilger <adilger@clusterfs.com>
Signed-off-by: default avatarGirish Shilamkar <girish@clusterfs.com>
Signed-off-by: default avatarDave Kleikamp <shaggy@linux.vnet.ibm.com>
Signed-off-by: default avatarMingming Cao <cmm@us.ibm.com>
      818d276c
  23. 25 Jan, 2008 3 commits
  25. 22 Jan, 2008 1 commit
  27. 09 Jan, 2008 1 commit
  29. 17 Dec, 2007 1 commit
  31. 27 Nov, 2007 1 commit
  33. 03 Nov, 2007 1 commit
    • Jeff Layton's avatar
      [CIFS] implement upcalls for SPNEGO blob via keyctl API · 09fe7ba7
      Jeff Layton authored 
      
Add routines to handle upcalls to userspace via keyctl for the purpose
of getting a SPNEGO blob for a particular uid and server combination.

Clean up the Makefile a bit and set it up to only compile cifs_spnego
if CONFIG_CIFS_UPCALL is set. Also change CONFIG_CIFS_UPCALL to depend
on CONFIG_KEYS rather than CONFIG_CONNECTOR.

cifs_spnego.h defines the communications between kernel and userspace
and is intended to be shared with userspace programs.
Signed-off-by: default avatarJeff Layton <jlayton@redhat.com>
Signed-off-by: default avatarSteve French <sfrench@us.ibm.com>
      09fe7ba7
  35. 30 Oct, 2007 1 commit
  37. 19 Oct, 2007 1 commit
  39. 17 Oct, 2007 5 commits
    • Andreas Dilger's avatar
      Ext4: Uninitialized Block Groups · 717d50e4
      Andreas Dilger authored 
      
In pass1 of e2fsck, every inode table in the fileystem is scanned and checked,
regardless of whether it is in use.  This is this the most time consuming part
of the filesystem check.  The unintialized block group feature can greatly
reduce e2fsck time by eliminating checking of uninitialized inodes.

With this feature, there is a a high water mark of used inodes for each block
group.  Block and inode bitmaps can be uninitialized on disk via a flag in the
group descriptor to avoid reading or scanning them at e2fsck time.  A checksum
of each group descriptor is used to ensure that corruption in the group
descriptor's bit flags does not cause incorrect operation.

The feature is enabled through a mkfs option

	mke2fs /dev/ -O uninit_groups

A patch adding support for uninitialized block groups to e2fsprogs tools has
been posted to the linux-ext4 mailing list.

The patches have been stress tested with fsstress and fsx.  In performance
tests testing e2fsck time, we have seen that e2fsck time on ext3 grows
linearly with the total number of inodes in the filesytem.  In ext4 with the
uninitialized block groups feature, the e2fsck time is constant, based
solely on the number of used inodes rather than the total inode count.
Since typical ext4 filesystems only use 1-10% of their inodes, this feature can
greatly reduce e2fsck time for users.  With performance improvement of 2-20
times, depending on how full the filesystem is.

The attached graph shows the major improvements in e2fsck times in filesystems
with a large total inode count, but few inodes in use.

In each group descriptor if we have

EXT4_BG_INODE_UNINIT set in bg_flags:
        Inode table is not initialized/used in this group. So we can skip
        the consistency check during fsck.
EXT4_BG_BLOCK_UNINIT set in bg_flags:
        No block in the group is used. So we can skip the block bitmap
        verification for this group.

We also add two new fields to group descriptor as a part of
uninitialized group patch.

        __le16  bg_itable_unused;       /* Unused inodes count */
        __le16  bg_checksum;            /* crc16(sb_uuid+group+desc) */

bg_itable_unused:

If we have EXT4_BG_INODE_UNINIT not set in bg_flags
then bg_itable_unused will give the offset within
the inode table till the inodes are used. This can be
used by fsck to skip list of inodes that are marked unused.

bg_checksum:
Now that we depend on bg_flags and bg_itable_unused to determine
the block and inode usage, we need to make sure group descriptor
is not corrupt. We add checksum to group descriptor to
detect corruption. If the descriptor is found to be corrupt, we
mark all the blocks and inodes in the group used.
Signed-off-by: default avatarAvantika Mathur <mathur@us.ibm.com>
Signed-off-by: default avatarAndreas Dilger <adilger@clusterfs.com>
Signed-off-by: default avatarMingming Cao <cmm@us.ibm.com>
Signed-off-by: default avatarAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
      717d50e4
    • Jan Engelhardt's avatar
      menuconfig: transform Network Filesystems menu · ea0985ad
      Jan Engelhardt authored 
      
Turn Network File Systems into a menuconfig so that it can be disabled at
once.

(Note: I added a "default y". If you do not like that, speak up.)
Signed-off-by: default avatarJan Engelhardt <jengelh@gmx.de>
Cc: Trond Myklebust <trond.myklebust@fys.uio.no>
Cc: "J. Bruce Fields" <bfields@fieldses.org>
Cc: Steven French <sfrench@us.ibm.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Eric Van Hensbergen <ericvh@hera.kernel.org>
Cc: Neil Brown <neilb@suse.de>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      ea0985ad
    • Jan Kara's avatar
      quota: send messages via netlink · 8e893469
      Jan Kara authored 
      
Implement sending of quota messages via netlink interface.  The advantage
is that in userspace we can better decide what to do with the message - for
example display a dialogue in your X session or just write the message to
the console.  As a bonus, we can get rid of problems with console locking
deep inside filesystem code once we remove the old printing mechanism.
Signed-off-by: default avatarJan Kara <jack@suse.cz>
Cc: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8e893469
    • Robert P. J. Day's avatar
      Remove valueless definition of hard-selected RAMFS option · 8e3f715a
      Robert P. J. Day authored 
      
Since CONFIG_RAMFS is currently hard-selected to "y", and since
Documentation/filesystems/ramfs-rootfs-initramfs.txt reads as follows:

"The amount of code required to implement ramfs is tiny, because all the
work is done by the existing Linux caching infrastructure.  Basically,
you're mounting the disk cache as a filesystem.  Because of this, ramfs is
not an optional component removable via menuconfig, since there would be
negligible space savings."

It seems pointless to leave this as a Kconfig entry.
Signed-off-by: default avatarRobert P. J. Day <rpjday@mindspring.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      8e3f715a
    • Adrian Bunk's avatar
      allow disabling DNOTIFY without EMBEDDED · 7e341fa1
      Adrian Bunk authored 
      
Allow disabling DNOTIFY with CONFIG_EMBEDDED=n.

I'm currently running a kernel with dnotify disabled and I haven't run into
any problem.  Is there any popular application left that breaks without
dnotify support in the kernel?

Note that this patch does not remove dnotify support, it still defaults to
"y", and the help text recommends enabling it.
Signed-off-by: default avatarAdrian Bunk <bunk@kernel.org>
Acked-by: default avatarStephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      7e341fa1
  41. 09 Oct, 2007 2 commits
  43. 11 Sep, 2007 1 commit
  45. 02 Aug, 2007 1 commit