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2006-03-22[XFS] Check that a page has dirty buffers before finding it acceptable forDavid Chinner
rewrite clustering. This prevents writing excessive amounts of clean data when doing random rewrites of a cached file. SGI-PV: 951193 SGI-Modid: xfs-linux-melb:xfs-kern:25531a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22[XFS] Fixup naming inconsistencies found by Pekka Enberg and one from JanNathan Scott
Engelhardt. SGI-PV: 947038 SGI-Modid: xfs-linux-melb:xfs-kern:25529a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22[XFS] Explain the race closed by the addition of vn_iowait() to the startDavid Chinner
of xfs_itruncate_start(). SGI-PV: 947420 SGI-Modid: xfs-linux-melb:xfs-kern:25527a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22[XFS] Fixing the error caused by the conflict between DIO Write'sYingping Lu
conversion and concurrent truncate operations. Use vn_iowait to wait for the completion of any pending DIOs. Since the truncate requires exclusive IOLOCK, so this blocks any further DIO operations since DIO write also needs exclusive IOBLOCK. This serves as a barrier and prevent any potential starvation. SGI-PV: 947420 SGI-Modid: xfs-linux-melb:xfs-kern:208088a Signed-off-by: Yingping Lu <yingping@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22[XFS] Fixing KDB's xrwtrc command, also added the current process id intoYingping Lu
the trace. SGI-PV: 948300 SGI-Modid: xfs-linux-melb:xfs-kern:208069a Signed-off-by: Yingping Lu <yingping@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-22It's UTF-8Alexey Dobriyan
Fix some comments to "UTF-8". Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-03-21Merge branch 'linus'Trond Myklebust
2006-03-20SUNRPC,RPCSEC_GSS: spkm3--fix config dependenciesJ. Bruce Fields
Add default selection of CRYPTO_CAST5 when selecting RPCSEC_GSS_SPKM3. Signed-off-by: Kevin Coffman <kwc@citi.umich.edu> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20LOCKD: Make nlmsvc_traverse_shares return voidJ. Bruce Fields
The nlmsvc_traverse_shares return value is always zero, hence useless. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20LOCKD: nlmsvc_traverse_blocks return is unusedJ. Bruce Fields
Note that we never return non-zero. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFSv4: Dont list system.nfs4_acl for filesystems that don't support it.J. Bruce Fields
Thanks to Frank Filz for pointing out that we list system.nfs4_acl extended attribute even on filesystems where we don't actually support nfs4_acl. This is inconsistent with the e.g. ext3 POSIX ACL behaviour, and seems to annoy cp. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20SUNRPC: Ensure rpc_call_async() always calls tk_ops->rpc_release()Trond Myklebust
Currently this will not happen if we exit before rpc_new_task() was called. Also fix up rpc_run_task() to do the same (for consistency). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20[PATCH] sysfs: fix a kobject leak in sysfs_add_link on the error pathGreg Kroah-Hartman
As pointed out by Oliver Neukum. Cc: Maneesh Soni <maneesh@in.ibm.com> Cc: Oliver Neukum <oliver@neukum.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] sysfs: don't export dir symbolsGreg Kroah-Hartman
These functions should only be used by the kobject core, and if any driver tries to use them, bad things happen. Unexport them to try to prevent this from happening. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] debugfs: Add debugfs_create_blob() helper for exporting binary dataMichael Ellerman
I wanted to export a binary blob via debugfs, and although it was pretty easy it seems like it'd be easier if there was a helper for it. It's a pity we need the wrapper struct but I can't see a cleaner way to do it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] sysfs: fix problem with duplicate sysfs directories and filesManeesh Soni
The following patch checks for existing sysfs_dirent before preparing new one while creating sysfs directories and files. Signed-off-by: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] sysfs: kzalloc conversionEric Sesterhenn
this converts fs/sysfs to kzalloc() usage. compile tested with make allyesconfig Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] kobj_map semaphore to mutex conversionJes Sorensen
Convert the kobj_map code to use a mutex instead of a semaphore. It converts the single two users as well, genhd.c and char_dev.c. Signed-off-by: Jes Sorensen <jes@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] sysfs: sysfs_remove_dir() needs to invalidate the dentryGreg Kroah-Hartman
When calling sysfs_remove_dir() don't allow any further sysfs functions to work for this kobject anymore. This fixes a nasty USB cdc-acm oops on disconnect. Many thanks to Bob Copeland and Paul Fulghum for taking the time to track this down. Cc: Bob Copeland <email@bobcopeland.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-20[PATCH] Collect more inode information during syscall processing.Amy Griffis
This patch augments the collection of inode info during syscall processing. It represents part of the functionality that was provided by the auditfs patch included in RHEL4. Specifically, it: - Collects information for target inodes created or removed during syscalls. Previous code only collects information for the target inode's parent. - Adds the audit_inode() hook to syscalls that operate on a file descriptor (e.g. fchown), enabling audit to do inode filtering for these calls. - Modifies filtering code to check audit context for either an inode # or a parent inode # matching a given rule. - Modifies logging to provide inode # for both parent and child. - Protect debug info from NULL audit_names.name. [AV: folded a later typo fix from the same author] Signed-off-by: Amy Griffis <amy.griffis@hp.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2006-03-20[PATCH] Pass dentry, not just name, in fsnotify creation hooks.Amy Griffis
The audit hooks (to be added shortly) will want to see dentry->d_inode too, not just the name. Signed-off-by: Amy Griffis <amy.griffis@hp.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-03-20NFS: Fix a race in nfs_sync_inode()Trond Myklebust
Kudos to Neil Brown for spotting the problem: "in nfs_sync_inode, there is effectively the sequence: nfs_wait_on_requests nfs_flush_inode nfs_commit_inode This seems a bit racy to me as if the only requests are on the ->commit list, and nfs_commit_inode is called separately after nfs_wait_on_requests completes, and before nfs_commit_inode start (say: by nfs_write_inode) then none of these function will return >0, yet there will be some pending request that aren't waited for." The solution is to search for requests to wait upon, search for dirty requests, and search for uncommitted requests while holding the nfsi->req_lock The patch also cleans up nfs_sync_inode(), getting rid of the redundant FLUSH_WAIT flag. It turns out that we were always setting it. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFS: Clean up nfs_flush_list()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFS: Fix a race with PG_private and nfs_release_page()Trond Myklebust
We don't need to set PG_private for readahead pages, since they never get unlocked while I/O is in progress. However there is a small race in nfs_readpage_release() whereby the page may be unlocked, and have PG_private set. Fix is to have PG_private set only for the case of writes... Also fix a bug in nfs_clear_page_writeback(): Don't attempt to clear the radix_tree tag if we've already deleted the radix tree entry. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFSv4: Ensure the callback daemon flushes signalsTrond Myklebust
If the callback daemon is signalled, but is unable to exit because it still has users, then we need to flush signals. If not, then svc_recv() can never sleep, and so we hang. If we flush signals, then we also have to be prepared to resend them when we want the thread to exit. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFS, NLM: Allow blocking locks to respect signalsTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFS: Make nfs_fhget() return appropriate error valuesTrond Myklebust
Currently it returns NULL, which usually gets interpreted as ENOMEM. In fact it can mean a host of issues. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFSv4: Fix an oops in nfs4_fill_superTrond Myklebust
The mount statistics patches introduced a call to nfs_free_iostats that is not only redundant, but actually causes an oops. Also fix a memory leak due to the lack of a call to nfs_free_iostats on unmount. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: blocks should hold a reference to the nlm_fileTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFSv4: SETCLIENTID_CONFIRM should handle NFS4ERR_DELAY/NFS4ERR_RESOURCETrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFSv4: Send the delegation stateid for SETATTR callsTrond Myklebust
In the case where we hold a delegation stateid, use that in for inside SETATTR calls. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFSv4: Ensure nfs_callback_down() calls svc_destroy()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: Fix a typo in nlmsvc_grant_release()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: Add helper for *_RES callbacksTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NLM: Add nlmclnt_release_callTrond Myklebust
Add a helper function to simplify the freeing of NLM client requests. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NLM: Fix nlmclnt_test to not copy private part of locksTrond Myklebust
The struct file_lock does not carry a properly initialised lock, so don't copy it as if it were. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NLM: Simplify client locksTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFS: O_DIRECT needs to use a completionTrond Myklebust
Now that we have aio writes, it is possible for dreq->outstanding to be zero, but for the I/O not to have completed. Convert struct nfs_direct_req to use a completion to signal when the I/O is done. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFS: Clean up nfs_get_user_pagesTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFS: fix compiler warnings on 64-bit platformsChuck Lever
Introduced by NFS aio+dio patches. Test plan: Compile kernel with CONFIG_NFS enabled on 64-bit hardware. Signed-off-by: Chuck Lever <cel@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NLM: nlmclnt_cancel_callback should accept NLM_LCK_DENIED errorsTrond Myklebust
NLM_LCK_DENIED is a valid error return for an NLM_CANCEL call by the client. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: Fix Oopses due to list manipulation errors.Trond Myklebust
The patch "stop abusing file_lock_list introduces a couple of bugs since the locks may be copied and need to be removed from the lists when they are destroyed. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: stop abusing file_lock_listChristoph Hellwig
Currently lockd directly access the file_lock_list from fs/locks.c. It does so to mark locks granted or reclaimable. This is very suboptimal, because a) lockd needs to poke into locks.c internals, and b) it needs to iterate over all locks in the system for marking locks granted or reclaimable. This patch adds lists for granted and reclaimable locks to the nlm_host structure instead, and adds locks to those. nlmclnt_lock: now adds the lock to h_granted instead of setting the NFS_LCK_GRANTED, still O(1) nlmclnt_mark_reclaim: goes away completely, replaced by a list_splice_init. Complexity reduced from O(locks in the system) to O(1) reclaimer: iterates over h_reclaim now, complexity reduced from O(locks in the system) to O(locks per nlm_host) Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: Make lockd use rpc_new_client() instead of rpc_create_clientTrond Myklebust
When doing NLM_GRANTED requests, lockd may end up blocking if we use rpc_create_client() due to the synchronous call to rpc_ping(). Instead, use rpc_new_client(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: Make nlmsvc_create_block() use nlmsvc_lookup_host()Trond Myklebust
Currently it uses nlmclnt_lookup_host(), which puts the resulting host structure on a different list. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: Clean up of the server-side GRANTED codeTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: Add refcounting to struct nlm_blockTrond Myklebust
Otherwise, the block may disappear from underneath us when in nlmsvc_retry_blocked. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: Fix server-side lock blocking codeTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20lockd: posix_test_lock() should not call locks_copy_lock()Trond Myklebust
The caller of posix_test_lock() should never need to look at the lock private data, so do not copy that information. This also means that there is no need to call the fl_release_private methods. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-03-20NFS: Uninline nfs_writedata_(alloc|free) and nfs_readdata_(alloc|free)Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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