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2007-02-03NFS: fix print format for tk_pidChuck Lever
The tk_pid field is an unsigned short. The proper print format specifier for that type is %5u, not %4d. Also clean up some miscellaneous print formatting nits. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFSv4: Add lockdep checks to nfs4_wait_clnt_recover()Trond Myklebust
Attempt to detect deadlocks due to caller holding locks on clp->cl_sem Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFSv4: Don't start state recovery in nfs4_close_done()Trond Myklebust
We might not even have any open files at this point... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFS: Fixup some outdated comments...Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFS: nfs_writepages() cleanupTrond Myklebust
Strip out the call to nfs_commit_inode(), and allow that to be done by nfs_write_inode(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFS: Micro-optimisation for nfs_wb_page()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFS: Ensure that ->writepage() uses flush_stable() when reclaiming pagesTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFS: Remove nfs_readpage_sync()Trond Myklebust
It makes no sense to maintain 2 parallel systems for reading in pages. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFSv4: Cleanups for fs_locations code.Trond Myklebust
Start long arduous project... What the hell is struct dentry = {}; all about? Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFSv4: Don't require that NFSv4 mount paths begin with '/'Trond Myklebust
Addresses the regression noted in http://bugzilla.linux-nfs.org/show_bug.cgi?id=134 Also mark a couple of other regressions as requiring fixing. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFS: Dont clobber more uptodate values in nfs_set_verifier()Trond Myklebust
nfs_lookup_revalidate and friends are not serialised, so it is currently quite possible for the dentry to be revalidated, and then have the updated verifier replaced with an older value by another process. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFS: Also use readdir info to revalidate positive dentriesTrond Myklebust
If the fileid of the cached dentry fails to match that returned by the readdir call, then we should also d_drop. Try to take into account the fact that on NFSv4, readdir may return the "mounted_on_fileid" by looking for submounts. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFS: Fix a readdir/lookup inefficiency.Trond Myklebust
Make sure that nfs_readdir_lookup() handles negative dentries correctly. If d_lookup() returns a negative dentry, then we need to d_drop() that since readdir shows that it should be positive. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFS: Fix up "rm -rf"...Trond Myklebust
When a file is being scheduled for deletion by means of the sillyrename mechanism, it makes sense to start out writeback of the dirty data as soon as possible in order to ensure that the delete can occur. Examples of cases where this is an issue include "rm -rf", which will busy-wait until the file is closed, and the sillyrename completes. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFSv4: Fix NFS4_enc_server_caps_sz/NFS4_dec_server_caps_szTrond Myklebust
Insert missing encode_putfh_maxsz/decode_putfh_maxsz Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-02-03NFSv4: Fix Oops in nfs4_create_referral_serverTrond Myklebust
The filehandle that is passed into nfs4_create_referral_server is not initialised. The expectation is that nfs4_create_referral_server will initialise it, and return it to the caller. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-01-30[PATCH] Remove warning: VFS is out of sync with lock managerNeil Brown
But keep it as a dprintk The message can be generated in a quite normal situation: If a 'lock' request is interrupted, then the lock client needs to record that the server has the lock, incase it does. When we come the unlock, the server might say it doesn't, even though we think it does (or might) and this generates the message. Signed-off-by: Neil Brown <neilb@suse.de> Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-24[PATCH] NFS: Fix races in nfs_revalidate_mapping()Trond Myklebust
Prevent the call to invalidate_inode_pages2() from racing with file writes by taking the inode->i_mutex across the page cache flush and invalidate. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-01-11[PATCH] NFS: Fix race in nfs_release_page()Trond Myklebust
NFS: Fix race in nfs_release_page() invalidate_inode_pages2() may find the dirty bit has been set on a page owing to the fact that the page may still be mapped after it was locked. Only after the call to unmap_mapping_range() are we sure that the page can no longer be dirtied. In order to fix this, NFS has hooked the releasepage() method and tries to write the page out between the call to unmap_mapping_range() and the call to remove_mapping(). This, however leads to deadlocks in the page reclaim code, where the page may be locked without holding a reference to the inode or dentry. Fix is to add a new address_space_operation, launder_page(), which will attempt to write out a dirty page without releasing the page lock. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Also, the bare SetPageDirty() can skew all sort of accounting leading to other nasties. [akpm@osdl.org: cleanup] Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-13[PATCH] getting rid of all casts of k[cmz]alloc() callsRobert P. J. Day
Run this: #!/bin/sh for f in $(grep -Erl "\([^\)]*\) *k[cmz]alloc" *) ; do echo "De-casting $f..." perl -pi -e "s/ ?= ?\([^\)]*\) *(k[cmz]alloc) *\(/ = \1\(/" $f done And then go through and reinstate those cases where code is casting pointers to non-pointers. And then drop a few hunks which conflicted with outstanding work. Cc: Russell King <rmk@arm.linux.org.uk>, Ian Molton <spyro@f2s.com> Cc: Mikael Starvik <starvik@axis.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kyle McMartin <kyle@mcmartin.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: "David S. Miller" <davem@davemloft.net> Cc: Jeff Dike <jdike@addtoit.com> Cc: Greg KH <greg@kroah.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Paul Fulghum <paulkf@microgate.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Cc: Karsten Keil <kkeil@suse.de> Cc: Mauro Carvalho Chehab <mchehab@infradead.org> Cc: Jeff Garzik <jeff@garzik.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Cc: Ian Kent <raven@themaw.net> Cc: Steven French <sfrench@us.ibm.com> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Neil Brown <neilb@cse.unsw.edu.au> Cc: Jaroslav Kysela <perex@suse.cz> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08[PATCH] rename struct namespace to struct mnt_namespaceKirill Korotaev
Rename 'struct namespace' to 'struct mnt_namespace' to avoid confusion with other namespaces being developped for the containers : pid, uts, ipc, etc. 'namespace' variables and attributes are also renamed to 'mnt_ns' Signed-off-by: Kirill Korotaev <dev@sw.ru> Signed-off-by: Cedric Le Goater <clg@fr.ibm.com> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-08[PATCH] nfs: change uses of f_{dentry,vfsmnt} to use f_pathJosef "Jeff" Sipek
Change all the uses of f_{dentry,vfsmnt} to f_path.{dentry,mnt} in the nfs client code. Signed-off-by: Josef "Jeff" Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07Merge branch 'master' of /home/trondmy/kernel/linux-2.6/ into merge_linusTrond Myklebust
2006-12-07Merge branch 'master' of /home/trondmy/kernel/linux-2.6/ into merge_linusTrond Myklebust
Conflicts: include/linux/sunrpc/xprt.h net/sunrpc/xprtsock.c Fix up conflicts with the workqueue changes.
2006-12-07[PATCH] slab: remove kmem_cache_tChristoph Lameter
Replace all uses of kmem_cache_t with struct kmem_cache. The patch was generated using the following script: #!/bin/sh # # Replace one string by another in all the kernel sources. # set -e for file in `find * -name "*.c" -o -name "*.h"|xargs grep -l $1`; do quilt add $file sed -e "1,\$s/$1/$2/g" $file >/tmp/$$ mv /tmp/$$ $file quilt refresh done The script was run like this sh replace kmem_cache_t "struct kmem_cache" Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07[PATCH] slab: remove SLAB_KERNELChristoph Lameter
SLAB_KERNEL is an alias of GFP_KERNEL. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-07[PATCH] slab: remove SLAB_NOFSChristoph Lameter
SLAB_NOFS is an alias of GFP_NOFS. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-12-06NFS: Clean up calls to mark_inode_dirty() part 2Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Fix up writeback_control->nr_to_write accountingTrond Myklebust
We're really accounting for the same page twice now: once in generic_writepages(), and once in nfs_scan_dirty(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Fix up the dirty page accountingTrond Myklebust
There is now no reason to account for the dirty pages in the NFS code, since the VM code will now do it for us via __set_page_dirty_nobuffers(), and set_page_writeback(). We still need to keep the accounting of stable writes, though. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Ensure the inode is marked as dirty if we break out of nfs_wb_all()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Fix nfs_release_pageTrond Myklebust
invalidate_inode_pages2_range() will clear the PG_dirty bit before calling try_to_release_page(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Ensure we only call set_page_writeback() under the page lockTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Make nfs_updatepage() mark the page as dirty.Trond Myklebust
This will ensure that we can call set_page_writeback() from within nfs_writepage(), which is always called with the page lock set. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Ensure that nfs_wb_page() calls writepage when necessary.Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Add nfs_set_page_dirty()Trond Myklebust
We will want to allow nfs_writepage() to distinguish between pages that have been marked as dirty by the VM, and those that have been marked as dirty by nfs_updatepage(). In the former case, the entire page will want to be written out, and so any requests that were pending need to be flushed out first. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Remove nfs_writepage_sync()Trond Myklebust
Maintaining two parallel ways of doing synchronous writes is rather pointless. This patch gets rid of the legacy nfs_writepage_sync(), and replaces it with the faster asynchronous writes. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: More cleanups of fs/nfs/write.cTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Remove call to igrab() from nfs_writepage()Trond Myklebust
We always ensure that the nfs_open_context holds a reference to the dentry, so the test in nfs_writepage() for whether or not the inode is referenced is redundant. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Cleanup: add common helper nfs_page_length()Trond Myklebust
Clean up a lot of ad-hoc page length calculations in fs/nfs/write.c Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Store pointer to the nfs_page in page->privateTrond Myklebust
This will allow fast lookup of the nfs_page from the struct page instead of having to search the radix tree. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: cleanup of nfs_sync_inode_wait()Trond Myklebust
Allow callers to directly pass it a struct writeback_control. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Clean up nfs_scan_dirty()Trond Myklebust
Pass down struct writeback control. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Clean up nfs_flush_inode()Trond Myklebust
Make it take a struct writepages argument, and rename to nfs_flush_mapping(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Remove use of the Big Kernel Lock around nfs calls to readlinkFrank Filz
Remove use of the Big Kernel Lock around indirect calls to nfs3_proc_readlink and nfs4_proc_readlink, both of which basically call rpc_call_sync. Signed-off-by: Frank Filz <ffilz@us.ibm.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Remove use of the Big Kernel Lock around calls to rpc_call_syncFrank Filz
Remove use of the Big Kernel Lock around calls to rpc_call_sync. Signed-off-by: Frank Filz <ffilz@us.ibm.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Remove use of the Big Kernel Lock around calls to rpc_execute.Frank Filz
Remove use of the Big Kernel Lock around calls to rpc_execute. Signed-off-by: Frank Filz <ffilz@us.ibm.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Fix nfs_sync_inode_wait(FLUSH_INVALIDATE)Trond Myklebust
Currently nfs_sync_inode_wait() will fail to loop correctly when we call nfs_sync_inode_wait with the FLUSH_INVALIDATE argument. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Fix missing page_unlock() in nfs_readpageTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2006-12-06NFS: Fix asynchronous read error handlingTrond Myklebust
We must always call ->read_done() before we truncate the page data, or decide to flag an error. The reasons are that in NFSv2, ->read_done() is where the eof flag gets set. in NFSv3/v4 ->read_done() handles EJUKEBOX-type errors, and v4 state recovery. However, we need to mark the pages as uptodate before we deal with short read errors, since we may need to modify the nfs_read_data arguments. We therefore split the current nfs_readpage_result() into two parts: nfs_readpage_result(), which calls ->read_done() etc, and nfs_readpage_retry(), which subsequently handles short reads. Note: Removing the code that retries in case of a short read also fixes a bug in nfs_direct_read_result(), which used to return a corrupted number of bytes. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
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