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2007-07-10SUNRPC: Remove redundant calls to rpciod_up()/rpciod_down()Trond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Kill rpc_clnt->cl_oneshotTrond Myklebust
Replace it with explicit calls to rpc_shutdown_client() or rpc_destroy_client() (for the case of asynchronous calls). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10SUNRPC: Convert rpc_clnt->cl_users to a krefTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Convert struct nfs4_opendata to use struct krefTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Convert struct nfs_open_context to use a krefTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: reduce latency by using conditional rescheduling in nfs_scan_listTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Prevent integer overflow in nfs_scan_list()Trond Myklebust
Also ensure that nfs_inode ncommit and npages are large enough to represent all possible values for the number of pages. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Remove the redundant 'dirty' and 'commit' lists from nfs_inodeTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS cleanup: speed up nfs_scan_commit using radix tree tagsTrond Myklebust
Add a tag for requests that are waiting for a COMMIT Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS cleanup: Rename NFS_PAGE_TAG_WRITEBACK to NFS_PAGE_TAG_LOCKEDTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Convert struct nfs_page to use krefsTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Fix an Oops in the nfs_access_cache_shrinker()Trond Myklebust
The nfs_access_cache_shrinker may race with nfs_access_zap_cache(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: nfs3_proc_create() should use nfs_post_op_update_inode()Trond Myklebust
Also get rid of a redundant call to nfs_setattr_update_inode(). The call to nfs3_proc_setattr() already takes care of that. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS4: on a O_EXCL OPEN make sure SETATTR sets the fields holding the verifierJeff Layton
The Linux NFS4 client simply skips over the bitmask in an O_EXCL open call and so it doesn't bother to reset any fields that may be holding the verifier. This patch has us save the first two words of the bitmask (which is all the current client has #defines for). The client then later checks this bitmask and turns on the appropriate flags in the sattr->ia_verify field for the following SETATTR call. This patch only currently checks to see if the server used the atime and mtime slots for the verifier (which is what the Linux server uses for this). I'm not sure of what other fields the server could reasonably use, but adding checks for others should be trivial. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Re-enable forced umountsTrond Myklebust
They disappeared some time around 2.6.18. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Use GFP_HIGHUSER for page allocation in nfs_symlink()Jeff Layton
nfs_symlink() allocates a GFP_KERNEL page for the pagecache. Most pagecache pages are allocated using GFP_HIGHUSER, and there's no reason not to do that in nfs_symlink() as well. Signed-off-by: Jeff Layton <jlayton@redhat.com>
2007-07-10NFS: Fix nfs_reval_fsid()Trond Myklebust
We don't need to revalidate the fsid on the root directory. It suffices to revalidate it on the current directory. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Clean up nfs4_call_async()Trond Myklebust
Use rpc_run_task() instead of doing it ourselves. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Ensure that nfs4_do_close() doesn't race with umountTrond Myklebust
nfs4_do_close() does not currently have any way to ensure that the user won't attempt to unmount the partition while the asynchronous RPC call is completing. This again may cause Oopses in nfs_update_inode(). Add a vfsmount argument to nfs4_close_state to ensure that the partition remains mounted while we're closing the file. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Ensure asynchronous open() calls always pin the mountpointTrond Myklebust
A number of race conditions may currently ensue if the user presses ^C and then unmounts the partition while an asynchronous open() is in progress. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFSv4: Cleanup: pass the nfs_open_context to open recovery codeTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Replace vfsmount and dentry in nfs_open_context with struct pathTrond Myklebust
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Minor read optimisation...Trond Myklebust
Since PG_uptodate may now end up getting set during the call to nfs_wb_page(), we can avoid putting a read request on the wire in those situations. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Don't mark a written page as uptodate until it is on diskTrond Myklebust
The write may fail, so we should not mark the page as uptodate until we are certain that the data has been accepted and written to disk by the server. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Don't fail an O_DIRECT read/write if get_user_pages() returns pagesTrond Myklebust
There is no need to fail the entire O_DIRECT read/write just because get_user_pages() returned fewer pages than we requested. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10NFS: Clean ups in fs/nfs/direct.cChuck Lever
Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
2007-07-10Make common helpers for seq_files that work with list_headsPavel Emelianov
Many places in kernel use seq_file API to iterate over a regular list_head. The code for such iteration is identical in all the places, so it's worth introducing a common helpers. This makes code about 300 lines smaller: The first version of this patch made the helper functions static inline in the seq_file.h header. This patch moves them to the fs/seq_file.c as Andrew proposed. The vmlinux .text section sizes are as follows: 2.6.22-rc1-mm1: 0x001794d5 with the previous version: 0x00179505 with this patch: 0x00179135 The config file used was make allnoconfig with the "y" inclusion of all the possible options to make the files modified by the patch compile plus drivers I have on the test node. This patch: Many places in kernel use seq_file API to iterate over a regular list_head. The code for such iteration is identical in all the places, so it's worth introducing a common helpers. Signed-off-by: Pavel Emelianov <xemul@openvz.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-10Merge branch 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6Linus Torvalds
* 'for-linus' of git://git390.osdl.marist.edu/pub/scm/linux-2.6: [S390] vmlogrdr function annotation. [S390] s390: rename CPU_IDLE to S390_CPU_IDLE [S390] cio: Remove prototype for non-existing function cmf_reset(). [S390] zcrypt: fix request timeout handling [S390] system call optimization. [S390] dasd: Avoid compile warnings on !CONFIG_DASD_PROFILE [S390] Remove volatile from atomic_t [S390] Program check in diag 210 under 31 bit [S390] Bogomips calculation for 64 bit. [S390] smp: Merge smp_count_cpus() and smp_get_save_areas(). [S390] zcore: Fix __user annotation. [S390] fixed cdl-format detection. [S390] sclp: Test facility list before executing a service call. [S390] sclp: introduce some new interfaces. [S390] Fixed comment typo. [S390] vmcp cleanup
2007-07-10Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmwLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-nmw: (57 commits) [GFS2] Accept old format NFS filehandles [GFS2] Small fixes to logging code [DLM] dump more lock values [GFS2] Remove i_mode passing from NFS File Handle [GFS2] Obtaining no_formal_ino from directory entry [GFS2] git-gfs2-nmw-build-fix [GFS2] System won't suspend with GFS2 file system mounted [GFS2] remounting w/o acl option leaves acls enabled [GFS2] inode size inconsistency [DLM] Telnet to port 21064 can stop all lockspaces [GFS2] Fix gfs2_block_truncate_page err return [GFS2] Addendum to the journaled file/unmount patch [GFS2] Simplify multiple glock aquisition [GFS2] assertion failure after writing to journaled file, umount [GFS2] Use zero_user_page() in stuffed_readpage() [GFS2] Remove bogus '\0' in rgrp.c [GFS2] Journaled file write/unstuff bug [DLM] don't require FS flag on all nodes [GFS2] Fix deallocation issues [GFS2] return conflicts for GETLK ...
2007-07-10Merge branch 'splice-2.6.23' of git://git.kernel.dk/data/git/linux-2.6-blockLinus Torvalds
* 'splice-2.6.23' of git://git.kernel.dk/data/git/linux-2.6-block: pipe: add documentation and comments pipe: change the ->pin() operation to ->confirm() Remove remnants of sendfile() xip sendfile removal splice: completely document external interface with kerneldoc sendfile: remove bad_sendfile() from bad_file_ops shmem: convert to using splice instead of sendfile() relay: use splice_to_pipe() instead of open-coding the pipe loop pipe: allow passing around of ops private pointer splice: divorce the splice structure/function definitions from the pipe header splice: relay support sendfile: convert nfsd to splice_direct_to_actor() sendfile: convert nfs to using splice_read() loop: convert to using splice_direct_to_actor() instead of sendfile() splice: add void cookie to the actor data sendfile: kill generic_file_sendfile() sendfile: remove .sendfile from filesystems that use generic_file_sendfile() sys_sendfile: switch to using ->splice_read, if available vmsplice: add vmsplice-to-user support splice: abstract out actor data
2007-07-10[GFS2] Accept old format NFS filehandlesSteven Whitehouse
On Tue, 2007-07-10 at 10:06 +0100, Christoph Hellwig wrote: > > -#define GFS2_LARGE_FH_SIZE 10 > > - > > -struct gfs2_fh_obj { > > - struct gfs2_inum_host this; > > - u32 imode; > > -}; > > +#define GFS2_LARGE_FH_SIZE 8 > > Because gfs2_decode_fh only accepts file handles with GFS2_LARGE_FH_SIZE > or GFS2_LARGE_FH_SIZE you don't accept filehandles sent out by and older > gfs version anymore. Stale filehandles because of a new kernel version > are a big no-no, so please add back code to handle the old filehandles > on the decode side. > This should fix that problem I think since its only relating to end of the fh we can just ignore that field in order to accept the older format. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: Wendy Cheng <wcheng@redhat.com>
2007-07-10[S390] fixed cdl-format detection.Stefan Haberland
CDL formated DASDs are now detected correctly even if no VOL1 label is on the disk. This prevents possible loss of data. Signed-off-by: Stefan Haberland <stefan.haberland@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2007-07-10pipe: add documentation and commentsJens Axboe
As per Andrew Mortons request, here's a set of documentation for the generic pipe_buf_operations hooks, the pipe, and pipe_buffer structures. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10pipe: change the ->pin() operation to ->confirm()Jens Axboe
The name 'pin' was badly chosen, it doesn't pin a pipe buffer in the most commonly used sense in the kernel. So change the name to 'confirm', after debating this issue with Hugh Dickins a bit. A good return from ->confirm() means that the buffer is really there, and that the contents are good. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10Remove remnants of sendfile()Jens Axboe
There are now zero users of .sendfile() in the kernel, so kill it from the file_operations structure and in do_sendfile(). Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10xip sendfile removalCarsten Otte
This patch removes xip_file_sendfile, the sendfile implementation for xip without replacement. Those customers that use xip on s390 are not using sendfile() as far as we know, and so far s390 is the only platform this could potentially be used on so far. Having sendfile is not a popular feature for execute in place file systems, however we have a working implementation of splice_read() based on fs/splice.c if anyone asks for it. At this point in time, it does not seem preferable to merge splice_read() for xip because it causes extra maintenence effort due to code duplication and it requires struct page behind the xip memory segment. We'd like to get rid of that in favor of supporting flash based embedded platforms (Monta Vista work) soon. Signed-off-by: Carsten Otte <cotte@de.ibm.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10splice: completely document external interface with kerneldocJens Axboe
Also add fs/splice.c as a kerneldoc target with a smaller blurb that should be expanded to better explain the overview of splice. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sendfile: remove bad_sendfile() from bad_file_opsJens Axboe
do_sendfile() prefers splice over sendfile, so it should not trigger (directly, at least). Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10pipe: allow passing around of ops private pointerJens Axboe
relay needs this for proper consumption handling, and the network receive support needs it as well to lookup the sk_buff on pipe release. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10splice: divorce the splice structure/function definitions from the pipe headerJens Axboe
We need to move even more stuff into the header so that folks can use the splice_to_pipe() implementation instead of open-coding a lot of pipe knowledge (see relay implementation), so move to our own header file finally. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sendfile: convert nfsd to splice_direct_to_actor()Jens Axboe
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sendfile: convert nfs to using splice_read()Jens Axboe
Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sendfile: remove .sendfile from filesystems that use generic_file_sendfile()Jens Axboe
They can use generic_file_splice_read() instead. Since sys_sendfile() now prefers that, there should be no change in behaviour. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10sys_sendfile: switch to using ->splice_read, if availableJens Axboe
This patch makes sendfile prefer to use ->splice_read(), if it's available in the file_operations structure. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10vmsplice: add vmsplice-to-user supportJens Axboe
A bit of a cheat, it actually just copies the data to userspace. But this makes the interface nice and symmetric and enables people to build on splice, with room for future improvement in performance. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10splice: abstract out actor dataJens Axboe
For direct splicing (or private splicing), the output may not be a file. So abstract out the handling into a specified actor function and put the data in the splice_desc structure earlier, so we can build on top of that. This is the first step in better splice handling for drivers, and also for implementing vmsplice _to_ user memory. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-10unexport bio_{,un}map_userAdrian Bunk
bio_{,un}map_user no longer have any modular users. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-09Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6: JFS: Update print_hex_dump() syntax JFS: use print_hex_dump() rather than private dump_mem() function JFS: Whitespace cleanup and remove some dead code
2007-07-09sched: scheduler debugging, coreIngo Molnar
scheduler debugging core: implement /proc/sched_debug and /proc/<PID>/sched files for scheduler debugging. Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-07-09sched: update delay-accounting to use CFS's precise statsBalbir Singh
update delay-accounting to use CFS's precise stats. Signed-off-by: Ingo Molnar <mingo@elte.hu>
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