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eeb2036 xfs: zero proper structure size for geometry calls
20ad9ea xfs: enable delaylog by default
ec3ba85 xfs: more sensible inode refcounting for ialloc
1050c71 xfs: stop using xfs_trans_iget in the RT allocator
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commit eeb2036b8a148629b762ae6d85cff0be8106f081
Author: Alex Elder <aelder@xxxxxxx>
Date: Tue Mar 1 17:50:00 2011 +0000
xfs: zero proper structure size for geometry calls
Commit 493f3358cb289ccf716c5a14fa5bb52ab75943e5 added this call to
xfs_fs_geometry() in order to avoid passing kernel stack data back
to user space:
+ memset(geo, 0, sizeof(*geo));
Unfortunately, one of the callers of that function passes the
address of a smaller data type, cast to fit the type that
xfs_fs_geometry() requires. As a result, this can happen:
Kernel panic - not syncing: stack-protector: Kernel stack is corrupted
in: f87aca93
Pid: 262, comm: xfs_fsr Not tainted 2.6.38-rc6-493f3358cb2+ #1
Call Trace:
[<c12991ac>] ? panic+0x50/0x150
[<c102ed71>] ? __stack_chk_fail+0x10/0x18
[<f87aca93>] ? xfs_ioc_fsgeometry_v1+0x56/0x5d [xfs]
Fix this by fixing that one caller to pass the right type and then
copy out the subset it is interested in.
Note: This patch is an alternative to one originally proposed by
Eric Sandeen.
Reported-by: Jeffrey Hundstad <jeffrey.hundstad@xxxxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
Reviewed-by: Eric Sandeen <sandeen@xxxxxxxxxx>
Tested-by: Jeffrey Hundstad <jeffrey.hundstad@xxxxxxxx>
commit 20ad9ea9becd34a3c16252ca9d815f2c74f8f30f
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sun Feb 13 12:06:34 2011 +0000
xfs: enable delaylog by default
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Signed-off-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
commit ec3ba85f4083d10e32fe58b46db02d78ef71f6b8
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sun Feb 13 13:26:42 2011 +0000
xfs: more sensible inode refcounting for ialloc
Currently we return iodes from xfs_ialloc with just a single reference held.
But we need two references, as one is dropped during transaction commit and
the second needs to be transfered to the VFS. Change xfs_ialloc to use
xfs_iget plus xfs_trans_ijoin_ref to grab two references to the inode,
and remove the now superflous IHOLD calls from all callers. This also
greatly simplifies the error handling in xfs_create and also allow to remove
xfs_trans_iget as no other callers are left.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
commit 1050c71e2925ab0cb025e4c89e08b15529a1ee36
Author: Christoph Hellwig <hch@xxxxxxxxxxxxx>
Date: Sun Feb 13 13:25:31 2011 +0000
xfs: stop using xfs_trans_iget in the RT allocator
During mount we establish references to the RT inodes, which we keep for
the lifetime of the filesystem. Instead of using xfs_trans_iget to grab
additional references when adding RT inodes to transactions use the
combination of xfs_ilock and xfs_trans_ijoin_ref, which archives the same
end result with less overhead.
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Reviewed-by: Dave Chinner <dchinner@xxxxxxxxxx>
Signed-off-by: Alex Elder <aelder@xxxxxxx>
-----------------------------------------------------------------------
Summary of changes:
fs/xfs/linux-2.6/xfs_ioctl.c | 11 +++++--
fs/xfs/linux-2.6/xfs_super.c | 1 +
fs/xfs/quota/xfs_qm.c | 7 -----
fs/xfs/xfs_bmap.c | 8 +----
fs/xfs/xfs_inode.c | 5 ++-
fs/xfs/xfs_rtalloc.c | 54 ++++++++++++++----------------------
fs/xfs/xfs_trans.h | 2 -
fs/xfs/xfs_trans_inode.c | 22 ---------------
fs/xfs/xfs_vnodeops.c | 61 +++++++++++-------------------------------
9 files changed, 51 insertions(+), 120 deletions(-)
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