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git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
arch/x86/kernel/io_apic.c
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* 'for-linus' of git://oss.sgi.com/xfs/xfs: (184 commits)
[XFS] Fix race in xfs_write() between direct and buffered I/O with DMAPI
[XFS] handle unaligned data in xfs_bmbt_disk_get_all
[XFS] avoid memory allocations in xfs_fs_vcmn_err
[XFS] Fix speculative allocation beyond eof
[XFS] Remove XFS_BUF_SHUT() and friends
[XFS] Use the incore inode size in xfs_file_readdir()
[XFS] set b_error from bio error in xfs_buf_bio_end_io
[XFS] use inode_change_ok for setattr permission checking
[XFS] add a FMODE flag to make XFS invisible I/O less hacky
[XFS] resync headers with libxfs
[XFS] simplify projid check in xfs_rename
[XFS] replace b_fspriv with b_mount
[XFS] Remove unused tracing code
[XFS] Remove unnecessary assertion
[XFS] Remove unused variable in ktrace_free()
[XFS] Check return value of xfs_buf_get_noaddr()
[XFS] Fix hang after disallowed rename across directory quota domains
[XFS] Fix compile with CONFIG_COMPAT enabled
move inode tracing out of xfs_vnode.
move vn_iowait / vn_iowake into xfs_aops.c
...
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
fs/xfs/linux-2.6/xfs_cred.h
fs/xfs/linux-2.6/xfs_globals.h
fs/xfs/linux-2.6/xfs_ioctl.c
fs/xfs/xfs_vnodeops.h
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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The iolock is dropped and re-acquired around the call to XFS_SEND_NAMESP().
While the iolock is released the file can become cached. We then
'goto retry' and - if we are doing direct I/O - mapping->nrpages may now be
non zero but need_i_mutex will be zero and we will hit the WARN_ON().
Since we have dropped the I/O lock then the file size may have also changed
so what we need to do here is 'goto start' like we do for the XFS_SEND_DATA()
DMAPI event.
We also need to update the filesize before releasing the iolock so that
needs to be done before the XFS_SEND_NAMESP event. If we drop the iolock
before setting the filesize we could race with a truncate.
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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In libxfs xfs_bmbt_disk_get_all needs to handle unaligned data and thus
has been updated to use get_unaligned_be64. In kernelspace we don't strictly
need it as the routine is only used for tracing and xfsidbg, but let's keep
the two implementations in sync.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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xfs_fs_vcmn_err can be called under a spinlock, but does a sleeping memory
allocation to create buffer for it's internal sprintf. Fortunately it's
the only caller of icmn_err, so we can merge the two and have one single
static buffer and spinlock protecting it. While we're at it make sure
we proper __attribute__ format annotations so that the compiler can detect
mismatched format strings.
Reported-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Speculative allocation beyond eof doesn't work properly. It was
broken some time ago after a code cleanup that moved what is now
xfs_iomap_eof_align_last_fsb() and xfs_iomap_eof_want_preallocate()
out of xfs_iomap_write_delay() into separate functions. The code
used to use the current file size in various checks but got changed
to be max(file_size, i_new_size). Since i_new_size is the result
of 'offset + count' then in xfs_iomap_eof_want_preallocate() the
check for '(offset + count) <= isize' will always be true.
ie if 'offset + count' is > ip->i_size then isize will be i_new_size
and equal to 'offset + count'.
This change fixes all the places that used to use the current file
size.
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Code does nothing so remove it.
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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We should be using the incore inode size here not the linux inode
size. The incore inode size is always up to date for directories
whereas the linux inode size is not updated for directories.
We've hit assertions in xfs_bmap() and traced it back to the linux
inode size being zero but the incore size being correct.
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts:
fs/xfs/xfs_rename.c
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Instead of implementing our own checks use inode_change_ok to check for
necessary permission in setattr. There is a slight change in behaviour
as inode_change_ok doesn't allow i_mode updates to add the suid or sgid
without superuser privilegues while the old XFS code just stripped away
those bits from the file mode.
(First sent on Semptember 29th)
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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XFS has a mode called invisble I/O that doesn't update any of the
timestamps. It's used for HSM-style applications and exposed through
the nasty open by handle ioctl.
Instead of doing directly assignment of file operations that set an
internal flag for it add a new FMODE_NOCMTIME flag that we can check
in the normal file operations.
(addition of the generic VFS flag has been ACKed by Al as an interims
solution)
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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- xfs_sb.h add the XFS_SB_VERSION2_PARENTBIT features2 that has been
around in userspace for some time
- xfs_inode.h: move a few things out of __KERNEL__ that are needed by
userspace
- xfs_mount.h: only include xfs_sync.h under __KERNEL__
- xfs_inode.c: minor whitespace fixup. I accidentaly changes this when
importing this file for use by userspace.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Check for the project ID after attaching all inodes to the transaction.
That way the unlock in the error case is done by the transaction subsystem,
which guaratees that is uses the right flags (which was wrong from day one
of this check), and avoids having special code unlocking an array of inodes
with potential duplicates. Attaching the inode first is the method used
by xfs_rename and the other namespace methods all other error that require
multiple locked inodes.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Replace the b_fspriv pointer and it's ugly accessors with a properly types
xfs_mount pointer. Also switch log reocvery over to it instead of using
b_fspriv for the mount pointer.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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None of this code appears to be used anywhere so remove it.
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Preserve any error returned by the bio layer.
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Tim Shimmin <tes@sgi.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Hit this assert because an inode was tagged with XFS_ICI_RECLAIM_TAG but
not XFS_IRECLAIMABLE|XFS_IRECLAIM. This is because xfs_iget_cache_hit()
first clears XFS_IRECLAIMABLE and then calls __xfs_inode_clear_reclaim_tag()
while only holding the pag_ici_lock in read mode so we can race with
xfs_reclaim_inodes_ag(). Looks like xfs_reclaim_inodes_ag() will do the
right thing anyway so just remove the assert.
Thanks to Christoph for pointing out where the problem was.
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
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entries_size is probably left over from when we used to pass the
size to kmem_free().
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
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We check the return value of all other calls to xfs_buf_get_noaddr().
Make sense to do it here too.
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
Reviewed-by: Christoph Hellwig <hch@infradead.org>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
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When project quota is active and is being used for directory tree
quota control, we disallow rename outside the current directory
tree. This requires a check to be made after all the inodes
involved in the rename are locked. We fail to unlock the inodes
correctly if we disallow the rename when the target is outside the
current directory tree. This results in a hang on the next access
to the inodes involved in failed rename.
Reported-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: Dave Chinner <david@fromorbit.com>
Tested-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Move the inode tracing into xfs_iget.c / xfs_inode.h and kill xfs_vnode.c
now that it's empty.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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The whole machinery to wait on I/O completion is related to the I/O path
and should be there instead of in xfs_vnode.c. Also give the functions
more descriptive names.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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There's just one caller of this helper, and it's much cleaner to just merge
the xfs_do_force_shutdown call into it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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There's almost nothing left in this function, instead remove the IRELE
on the real times inodes and the call to XFS_QM_UNMOUNT into xfs_unmountfs.
For the regular unmount case that means it now also happenes after dmapi
notification, but otherwise there is no difference in behaviour.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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Currently we explicitly call xfs_iflush on the quota, real-time and root
inodes from xfs_unmount_flush. But we just called xfs_sync_inodes with
SYNC_ATTR and do an XFS_bflush aka xfs_flush_buftarg to make sure all inodes
are on disk already, so there is no need for these special cases.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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Use xfs_trans_ijoin in xfs_trans_iget in case we need to join an inode into
a transaction instead of opencoding it. Based on a discussion with and an
incomplete patch from Niv Sardi.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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We never supported shared read-only filesystems, so remove the dead
code left over from IRIX for it.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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There are a few inode flags around that aren't used anywhere, so remove
them. Also update xfsidbg to display all used inode flags correctly.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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The various inlines in xfs_sb.h that deal with the superblock version
and fature flags were converted from macros a while ago, and this
show by the odd coding style full of useless braces and backslashes
and the avoidance of conditionals.
Clean these up to look like normal C code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Donald Douwsma <donaldd@sgi.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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All but one caller of xlog_state_want_sync drop and re-acquire
l_icloglock around the call to it, just so that xlog_state_want_sync can
acquire and drop it.
Move all lock operation out of l_icloglock and assert that the lock is
held when it is called.
Note that it would make sense to extende this scheme to
xlog_state_release_iclog, but the locking in there is more complicated
and we'd like to keep the atomic_dec_and_lock optmization for those
callers not having l_icloglock yet.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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->link is guranteed to get an already reference inode passed so we
can do a simple increment of i_count instead of using igrab and thus
avoid banging on the global inode_lock. This is what most filesystems
already do.
Also move the increment after the call to xfs_link to simplify error
handling.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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xfs_buf_iostart is a "shared" helper for xfs_buf_read_flags,
xfs_bawrite, and xfs_bdwrite - except that there isn't much shared
code but rather special cases for each caller.
So remove this function and move the functionality to the caller.
xfs_bawrite and xfs_bdwrite are now big enough to be moved out of
line and the xfs_buf_read_flags is moved into a new helper called
_xfs_buf_read.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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Merge xfs_iextract and xfs_idestroy into xfs_ireclaim as they are never
called individually. Also rewrite most comments in this area as they
were severly out of date.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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When mnt_want_write was introduced a call to it was added around
xfs_ichgtime, but there is no need for this because a file can't be open
read/write on a r/o mount, and a mount can't degrade r/o while we still
have files open for writing. As the mnt_want_write changes were never
merged into the CVS tree this patch is for mainline only.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Dave Chinner <david@fromorbit.com>
Signed-off-by: Niv Sardi <xaiki@sgi.com>
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The recent compat patches make xfs_file.c include xfs_ioctl32.h unconditional,
which breaks the build on 32 bit systems which don't have the various compat
defintions.
Remove the include and move the defintion of xfs_file_compat_ioctl to
xfs_ioctl.h so that we can avoid including all the compat defintions in
xfs_file.c
Signed-off-by: Christoph Hellwig <hch@lst.de>
Tested-by: Kamalesh Babulal <kamalesh@linux.vnet.ibm.com>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Put things in IMHO a more readable order, now
that it's all done; add some comments.
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Add a compat handler for XFS_IOC_FSSETDM_BY_HANDLE.
I haven't tested this, lacking dmapi tools to do so
(unless xfsqa magically gets this somehow?)
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Add a compat handler for XFS_IOC_ATTRMULTI_BY_HANDLE
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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Add a compat handler for XFS_IOC_ATTRLIST_BY_HANDLE
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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The XFS_IOC_FSBULKSTAT_SINGLE ioctl passes in the
desired inode number, while XFS_IOC_FSBULKSTAT passes
in the previous/last-stat'd inode number. The
compat handler wasn't differentiating these, so
when a XFS_IOC_FSBULKSTAT_SINGLE request for inode
128 was sent in, stat information for 131 was sent out.
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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The 32-bit xfs_blkstat_one handler was failing because
a size check checked whether the remaining (32-bit)
user buffer was less than the (64-bit) bulkstat buffer,
and failed with ENOMEM if so. Move this check
into the respective handlers so that they check the
correct sizes.
Also, the formatters were returning negative errors
or positive bytes copied; this was odd in the positive
error value world of xfs, and handled wrong by at least
some of the callers, which treated the bytes returned
as an error value. Move the bytes-used assignment
into the formatters.
Signed-off-by: Eric Sandeen <sandeen@sandeen.net>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
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