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2008-12-29[XFS] Fix merge failuresLachlan McIlroy
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>
2008-12-25Merge branch 'next' into for-linusJames Morris
2008-12-24[XFS] Fix race in xfs_write() between direct and buffered I/O with DMAPILachlan McIlroy
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>
2008-12-23[XFS] handle unaligned data in xfs_bmbt_disk_get_allChristoph Hellwig
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>
2008-12-22[XFS] avoid memory allocations in xfs_fs_vcmn_errChristoph Hellwig
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>
2008-12-22[XFS] Fix speculative allocation beyond eofLachlan McIlroy
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>
2008-12-22[XFS] Remove XFS_BUF_SHUT() and friendsLachlan McIlroy
Code does nothing so remove it. Reviewed-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-22[XFS] Use the incore inode size in xfs_file_readdir()Lachlan McIlroy
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>
2008-12-12Merge branch 'master' of git+ssh://git.melbourne.sgi.com/git/xfsLachlan McIlroy
2008-12-12[XFS] set b_error from bio error in xfs_buf_bio_end_ioLachlan McIlroy
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>
2008-12-11[XFS] use inode_change_ok for setattr permission checkingChristoph Hellwig
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>
2008-12-11[XFS] add a FMODE flag to make XFS invisible I/O less hackyChristoph Hellwig
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>
2008-12-11[XFS] resync headers with libxfsChristoph Hellwig
- 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>
2008-12-11[XFS] simplify projid check in xfs_renameChristoph Hellwig
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>
2008-12-11[XFS] replace b_fspriv with b_mountChristoph Hellwig
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>
2008-12-10[XFS] Remove unused tracing codeLachlan McIlroy
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>
2008-12-05[XFS] Fix hang after disallowed rename across directory quota domainsDave Chinner
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>
2008-12-05[XFS] Remove unnecessary assertionLachlan McIlroy
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>
2008-12-05[XFS] Remove unused variable in ktrace_free()Lachlan McIlroy
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>
2008-12-05[XFS] Check return value of xfs_buf_get_noaddr()Lachlan McIlroy
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>
2008-12-05[XFS] Fix hang after disallowed rename across directory quota domainsDave Chinner
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>
2008-12-05[XFS] Fix compile with CONFIG_COMPAT enabledChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-04move inode tracing out of xfs_vnode.Christoph Hellwig
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>
2008-12-04move vn_iowait / vn_iowake into xfs_aops.cChristoph Hellwig
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>
2008-12-04kill vn_ioerrorChristoph Hellwig
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>
2008-12-04kill xfs_unmount_flushChristoph Hellwig
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>
2008-12-04no explicit xfs_iflush for special inodes during unmountChristoph Hellwig
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>
2008-12-04use xfs_trans_ijoin in xfs_trans_igetChristoph Hellwig
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>
2008-12-04remove leftovers of shared read-only supportChristoph Hellwig
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>
2008-12-04remove unused m_inode_quiesce member from struct xfs_mountChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com>
2008-12-04kill dead inode flagsChristoph Hellwig
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>
2008-12-04cleanup xfs_sb.h feature flag helpersChristoph Hellwig
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>
2008-12-04kill dead quota flagsChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com>
2008-12-04remove dead code from sv_t implementationChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com>
2008-12-04reduce l_icloglock roundtripsChristoph Hellwig
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>
2008-12-04stop using igrab in xfs_vn_linkChristoph Hellwig
->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>
2008-12-04kill xfs_buf_iostartChristoph Hellwig
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>
2008-12-04cleanup the inode reclaim pathChristoph Hellwig
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>
2008-12-04remove unused prototypes for xfs_ihash_init / xfs_ihash_freeChristoph Hellwig
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>
2008-12-04remove unused behvavior cruft in xfs_super.hChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Dave Chinner <david@fromorbit.com> Signed-off-by: Niv Sardi <xaiki@sgi.com>
2008-12-04remove useless mnt_want_write call in xfs_writeChristoph Hellwig
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>
2008-12-04[XFS] fix compile on 32 bit systemsChristoph Hellwig
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>
2008-12-02[XFS] Reorder xfs_ioctl32.c for some tidinesssandeen@sandeen.net
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>
2008-12-02[XFS] Hook up compat XFS_IOC_FSSETDM_BY_HANDLE ioctl handlersandeen@sandeen.net
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>
2008-12-02[XFS] Hook up compat XFS_IOC_ATTRMULTI_BY_HANDLE ioctl handlersandeen@sandeen.net
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>
2008-12-02[XFS] Hook up compat XFS_IOC_ATTRLIST_BY_HANDLE ioctl handlersandeen@sandeen.net
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>
2008-12-02[XFS] Fix compat XFS_IOC_FSBULKSTAT_SINGLE ioctlsandeen@sandeen.net
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>
2008-12-02[XFS] Fix xfs_bulkstat_one size checks & error handlingsandeen@sandeen.net
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>
2008-12-02[XFS] Make the bulkstat_one compat ioctl handling more sanesandeen@sandeen.net
Currently the compat formatter was handled by passing in "private_data" for the xfs_bulkstat_one formatter, which was really just another formatter... IMHO this got confusing. Instead, just make a new xfs_bulkstat_one_compat formatter for xfs_bulkstat, and call it via a wrapper. Also, don't translate the ioctl nrs into their native counterparts, that just clouds the issue; we're in a compat handler anyway, just switch on the 32-bit cmds. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-12-02[XFS] Add compat handlers for data & rt growfs ioctlssandeen@sandeen.net
The args for XFS_IOC_FSGROWFSDATA and XFS_IOC_FSGROWFSRTA have padding on the end on intel, so add arg copyin functions, and then just call the growfs ioctl helpers. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>