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* [S390] System z large page support.Gerald Schaefer2008-04-301-1/+2
| | | | | | | | | | | This adds hugetlbfs support on System z, using both hardware large page support if available and software large page emulation on older hardware. Shared (large) page tables are implemented in software emulation mode, by using page->index of the first tail page from a compound large page to store page table information. Signed-off-by: Gerald Schaefer <geraldsc@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
* Merge git://git.linux-nfs.org/projects/trondmy/nfs-2.6Linus Torvalds2008-04-241-37/+33
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.linux-nfs.org/projects/trondmy/nfs-2.6: (80 commits) SUNRPC: Invalidate the RPCSEC_GSS session if the server dropped the request make nfs_automount_list static NFS: remove duplicate flags assignment from nfs_validate_mount_data NFS - fix potential NULL pointer dereference v2 SUNRPC: Don't change the RPCSEC_GSS context on a credential that is in use SUNRPC: Fix a race in gss_refresh_upcall() SUNRPC: Don't disconnect more than once if retransmitting NFSv4 requests SUNRPC: Remove the unused export of xprt_force_disconnect SUNRPC: remove XS_SENDMSG_RETRY SUNRPC: Protect creds against early garbage collection NFSv4: Attempt to use machine credentials in SETCLIENTID calls NFSv4: Reintroduce machine creds NFSv4: Don't use cred->cr_ops->cr_name in nfs4_proc_setclientid() nfs: fix printout of multiword bitfields nfs: return negative error value from nfs{,4}_stat_to_errno NLM/lockd: Ensure client locking calls use correct credentials NFS: Remove the buggy lock-if-signalled case from do_setlk() NLM/lockd: Fix a race when cancelling a blocking lock NLM/lockd: Ensure that nlmclnt_cancel() returns results of the CANCEL call NLM: Remove the signal masking in nlmclnt_proc/nlmclnt_cancel ...
| * Merge branch 'devel'Trond Myklebust2008-04-241-37/+33
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| | * SUNRPC: Add a default setting for CONFIG_SUNRPC_BIND34Chuck Lever2008-03-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | Most distros will want support for rpcbind protocols 3 and 4 to default off until they have integrated user-space support for the new rpcbind daemon which supports IPv6 RPC services. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * SUNRPC: Update help Kconfig textChuck Lever2008-03-191-13/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up: refresh the help text for Kconfig items related to the sunrpc module. Remove obsolete URLs, and make the language consistent among the options. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| | * NFS: Always enable NFS direct I/OChuck Lever2008-03-191-24/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | Since O_DIRECT is a standard feature that is enabled in most distros, eliminate the CONFIG_NFS_DIRECTIO build option, and change the fs/nfs/Makefile to always build in the NFS direct I/O engine. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | NFSD: Remove NFSv4 dependency on NFSv3Chuck Lever2008-04-231-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up: Because NFSD_V4 "depends on" NFSD_V3, it appears as a child of the NFSD_V3 menu entry, and is not visible if NFSD_V3 is unselected. Replace the dependency on NFSD_V3 with a "select NFSD_V3". This makes NFSD_V4 look and work just like NFS_V3, while ensuring that NFSD_V3 is enabled if NFSD_V4 is. Sam Ravnborg adds: "This use of select is questionable. In general it is bad to select a symbol with dependencies. In this case the dependencies of NFSD_V3 are duplicated for NFSD_V4 so we will not se erratic configurations but do you remember to update NFSD_V4 when you add a depends on NFSD_V3? But I see no other clean way to do it right now." Later he said: "My comment was more to say we have things to address in kconfig. This is abuse in the acceptable range." Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | | SUNRPC: Remove PROC_FS dependencyChuck Lever2008-04-231-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recently, commit 440bcc59 added a reverse dependency to fs/Kconfig to ensure that PROC_FS was enabled if SUNRPC_GSS was enabled. Apparently this isn't necessary because the auth_gss components under net/sunrpc will build correctly even if PROC_FS is disabled, though RPCSEC_GSS will not work without /proc. It also violates the guideline in Documentation/kbuild/kconfig-language.txt that states "In general use select only for non-visible symbols (no prompts anywhere) and for symbols with no dependencies." To address these issues, remove the dependency. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | | NFSD: Use "depends on" for PROC_FS dependencyChuck Lever2008-04-231-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Recently, commit 440bcc59 added a reverse dependency to fs/Kconfig to ensure that PROC_FS was enabled if NFSD_V4 was enabled. There is a guideline in Documentation/kbuild/kconfig-language.txt that states "In general use select only for non-visible symbols (no prompts anywhere) and for symbols with no dependencies." A quick grep around other Kconfig files reveals that no entry currently uses "select PROC_FS" -- every one uses "depends on". Thus CONFIG_NFSD_V4 should use "depends on PROC_FS" as well. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | | NFSD: Remove redundant "select" clauses in fs/KconfigChuck Lever2008-04-231-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As far as I can tell, selecting the CRYPTO and CRYPTO_MD5 entries under CONFIG_NFSD is redundant, since CONFIG_NFSD_V4 already selects RPCSEC_GSS_KRB5, which selects these entries. Testing with "make menuconfig" shows that the entries under CRYPTO still properly reflect "Y" or "M" based on the setting of CONFIG_NFSD after this change is applied. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | | NFSD: Move "select NFSD_V2_ACL if NFSD_V3_ACL"Chuck Lever2008-04-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Clean up: since NFSD_V2_ACL is a boolean, it can be selected safely under the NFSD_V3_ACL entry (also a boolean). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | | NFSD: Move "select FS_POSIX_ACL if NFSD_V4"Chuck Lever2008-04-231-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | Clean up: since FS_POSIX_ACL is a non-visible boolean entry, it can be selected safely under the NFSD_V4 entry (also a boolean). Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | | NFSD: Update help text for CONFIG_NFSDChuck Lever2008-04-231-29/+47
| | | | | | | | | | | | | | | | | | | | | | | | | | | Clean up: refresh the help text for Kconfig items related to the NFS server. Remove obsolete URLs, and make the language consistent among the options. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | | NFSD: Remove NFSD_TCP kernel build optionChuck Lever2008-04-231-10/+0
|/ / | | | | | | | | | | | | | | | | | | | | Likewise, distros usually leave CONFIG_NFSD_TCP enabled. TCP support in the Linux NFS server is stable enough that we can leave it on always. CONFIG_NFSD_TCP adds about 10 lines of code, and defaults to "Y" anyway. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* | Merge branch 'for_linus' of ↵Linus Torvalds2008-04-221-0/+1
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-udf-2.6: (41 commits) udf: use crc_itu_t from lib instead of udf_crc udf: Fix compilation warnings when UDF debug is on udf: Fix bug in VAT mapping code udf: Add read-only support for 2.50 UDF media udf: Fix handling of multisession media udf: Mount filesystem read-only if it has pseudooverwrite partition udf: Handle VAT packed inside inode properly udf: Allow loading of VAT inode udf: Fix detection of VAT version udf: Silence warning about accesses beyond end of device udf: Improve anchor block detection udf: Cleanup anchor block detection. udf: Move processing of virtual partitions udf: Move filling of partition descriptor info into a separate function udf: Improve error recovery on mount udf: Cleanup volume descriptor sequence processing udf: fix anchor point detection udf: Remove declarations of arrays of size UDF_NAME_LEN (256 bytes) udf: Remove checking of existence of filename in udf_add_entry() udf: Mark udf_process_sequence() as noinline ...
| * | udf: use crc_itu_t from lib instead of udf_crcBob Copeland2008-04-171-0/+1
| |/ | | | | | | | | | | | | | | | | As pointed out by Sergey Vlasov, UDF implements its own version of the CRC ITU-T V.41. Convert it to use the one in the library. Signed-off-by: Bob Copeland <me@bobcopeland.com> Cc: Sergey Vlasov <vsu@altlinux.ru> Signed-off-by: Jan Kara <jack@suse.cz>
* | ocfs2: Allow selection of cluster plug-ins.Joel Becker2008-04-181-0/+26
| | | | | | | | | | | | | | | | | | | | | | | | ocfs2 now supports plug-ins for the classic O2CB stack as well as userspace cluster stacks in conjunction with fs/dlm. This allows zero, one, or both of the plug-ins to be selected in Kconfig. For local mounts (non-clustered), neither plug-in is needed. Both plugins can be loaded at one time, the runtime will select the one needed for the cluster systme in use. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* | Documentation: move nfsroot.txt to filesystems/J. Bruce Fields2008-04-111-4/+4
|/ | | | | | | | Documentation/ is a little large, and filesystems/ seems an obvious place for this file. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Signed-off-by: Jonathan Corbet <corbet@lwn.net>
* SUNRPC xptrdma: simplify build configurationJames Lentini2008-02-071-5/+2
| | | | | | | | | | | | | | | | | | | | | | Trond and Bruce, This is a patch for 2.6.25. This is the same version that was sent out on December 12 for review (no comments to date). To simplify the RPC/RDMA client and server build configuration, make SUNRPC_XPRT_RDMA a hidden config option that continues to depend on SUNRPC and INFINIBAND. The value of SUNRPC_XPRT_RDMA will be: - N if either SUNRPC or INFINIBAND are N - M if both SUNRPC and INFINIBAND are on (M or Y) and at least one is M - Y if both SUNRPC and INFINIBAND are Y In 2.6.25, all of the RPC/RDMA related files are grouped in net/sunrpc/xprtrdma and the net/sunrpc/xprtrdma/Makefile builds both the client and server RPC/RDMA support using this config option. Signed-off-by: James Lentini <jlentini@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* fs menu: small reorgRandy Dunlap2008-02-071-47/+46
| | | | | | | | | | | | - move minixfs and ROMfs to the Miscellaneous filesystems menu - move DNOTIFY config symbol so that it is adjacent to INOTIFY instead of being split by the QUOTA config options - add some 'endif' annotations - remove some whitespace (extra blank lines) Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* deprecate smbfs in favour of cifsAndrew Morton2008-02-051-14/+14
| | | | | | | | | | | | | | | | smbfs is a bit buggy and has no maintainer. Change it to shout at the user on the first five mount attempts - tell them to switch to CIFS. Come December we'll mark it BROKEN and see what happens. [olecom@flower.upol.cz: documentation update] Cc: Urban Widmark <urban@teststation.com> Acked-by: Steven French <sfrench@us.ibm.com> Signed-off-by: Oleg Verych <olecom@flower.upol.cz> Cc: Jeff Layton <jlayton@redhat.com> Cc: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* nfsd: select CONFIG_PROC_FS in nfsv4 and gss server casesJ. Bruce Fields2008-02-011-0/+2
| | | | | | | The server depends on upcalls under /proc to support nfsv4 and gss. Acked-by: NeilBrown <neilb@suse.de> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
* ext4: Add the journal checksum featureGirish Shilamkar2008-01-281-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | The journal checksum feature adds two new flags i.e JBD2_FEATURE_INCOMPAT_ASYNC_COMMIT and JBD2_FEATURE_COMPAT_CHECKSUM. JBD2_FEATURE_CHECKSUM flag indicates that the commit block contains the checksum for the blocks described by the descriptor blocks. Due to checksums, writing of the commit record no longer needs to be synchronous. Now commit record can be sent to disk without waiting for descriptor blocks to be written to disk. This behavior is controlled using JBD2_FEATURE_ASYNC_COMMIT flag. Older kernels/e2fsck should not be able to recover the journal with _ASYNC_COMMIT hence it is made incompat. The commit header has been extended to hold the checksum along with the type of the checksum. For recovery in pass scan checksums are verified to ensure the sanity and completeness(in case of _ASYNC_COMMIT) of every transaction. Signed-off-by: Andreas Dilger <adilger@clusterfs.com> Signed-off-by: Girish Shilamkar <girish@clusterfs.com> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2008-01-261-13/+26
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] DFS build fixes [CIFS] DFS support: provide shrinkable mounts [CIFS] Do not log path names in lookup errors [CIFS] DFS support patchset: Added mountdata [CIFS] Forgot to add two new files from previous commit [CIFS] DNS name resolution helper upcall for cifs [CIFS] fix checkpatch warnings in fs/cifs/inode.c [CIFS] hold ses sem on tcp session reconnect during mount [CIFS] Allow setting mode via cifs acl [CIFS] fix unicode string alignment in SPNEGO setup [CIFS] cifs_partialpagewrite() cleanup [CIFS] use krb5 session key from first SMB session after a NegProt [CIFS] redo existing session setup if needed in cifs_mount [CIFS] Only dump SPNEGO key if CONFIG_CIFS_DEBUG2 is set [CIFS] fix SetEA failure to some Samba versions
| * [CIFS] DNS name resolution helper upcall for cifsSteve French2008-01-091-13/+26
| | | | | | | | | | | | | | | | | | | | | | | | Adds additional option CIFS_DFS_UPCALL to fs/Kconfig for enabling DFS support. Resolved IP address is saved as a string in the key payload. Igor has a series of related patches that will follow which finish up CIFS DFS support Acked-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | Merge branch 'upstream-linus' of ↵Linus Torvalds2008-01-251-10/+4
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mfasheh/ocfs2: (31 commits) ocfs2: clean up bh null checks ocfs2: document access rules for blocked_lock_list configfs: file.c fix possible recursive locking configfs: dir.c fix possible recursive locking configfs: Remove EXPERIMENTAL ocfs2: bump version number ocfs2/dlm: Clear joining_node on hearbeat node down ocfs2: convert byte order of constant instead of variable ocfs2: Update default cluster timeouts ocfs2: printf fixes ocfs2: Use generic_file_llseek ocfs2: Safer read_inline_data() ocfs2: Silence false lockdep warnings [PATCH 2/2] ocfs2: cluster aware flock() [PATCH 1/2] ocfs2: add flock lock type ocfs2: Local alloc window size changeable via mount option ocfs2: Support commit= mount option ocfs2: Add missing permission checks [PATCH 2/2] ocfs2: Implement group add for online resize [PATCH 1/2] ocfs2: Add group extend for online resize ...
| * | configfs: Remove EXPERIMENTALJoel Becker2008-01-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | configfs has been alive and kicking for a while now. It underpins some non-EXPERIMENTAL subsystems, such as OCFS2's cluster stack. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Documentation updateMark Fasheh2008-01-251-8/+2
| | | | | | | | | | | | | | | | | | | | | | | | Remove 'readpages' from the list in ocfs2.txt. Instead of having two identical lists, I just removed the list in the OCFS2 section of fs/Kconfig and added a pointer to Documentation/filesystems/ocfs2.txt. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | Preempt-RCU: implementationPaul E. McKenney2008-01-251-1/+0
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements a new version of RCU which allows its read-side critical sections to be preempted. It uses a set of counter pairs to keep track of the read-side critical sections and flips them when all tasks exit read-side critical section. The details of this implementation can be found in this paper - http://www.rdrop.com/users/paulmck/RCU/OLSrtRCU.2006.08.11a.pdf and the article- http://lwn.net/Articles/253651/ This patch was developed as a part of the -rt kernel development and meant to provide better latencies when read-side critical sections of RCU don't disable preemption. As a consequence of keeping track of RCU readers, the readers have a slight overhead (optimizations in the paper). This implementation co-exists with the "classic" RCU implementations and can be switched to at compiler. Also includes RCU tracing summarized in debugfs. [ akpm@linux-foundation.org: build fixes on non-preempt architectures ] Signed-off-by: Gautham R Shenoy <ego@in.ibm.com> Signed-off-by: Dipankar Sarma <dipankar@in.ibm.com> Signed-off-by: Paul E. McKenney <paulmck@us.ibm.com> Reviewed-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Fix file references in documentation and KconfigJohann Felix Soden2008-01-221-2/+2
|/ | | | | | | | | | | | | | Fix typo in arch/powerpc/boot/flatdevtree_env.h. There is no Documentation/networking/ixgbe.txt. README.cycladesZ is now in Documentation/. wavelan.p.h is now in drivers/net/wireless/. HFS.txt is now Documentation/filesystems/hfs.txt. OSS-files are now in sound/oss/. Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net> Acked-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fs/Kconfig: grammar fixUwe Kleine-König2007-12-171-1/+1
| | | | | | | | | This was introduced in 4af8e944c22d8af92a7548354a9567250cc1a782 Signed-off-by: Uwe Kleine-König <Uwe.Kleine-Koenig@digi.com> Cc: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] ocfs2: Remove expensive bitmap scanningJan Kara2007-11-271-0/+9
| | | | | | | | | | Enable expensive bitmap scanning only if DEBUG option is enabled. The bitmap scanning quite loads the CPU and on my machine the write throughput of dd if=/dev/zero of=/ocfs2/file bs=1M count=500 conv=sync improves from 37 MB/s to 45.4 MB/s in local mode... Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2007-11-121-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (21 commits) [CIFS] fix oops on second mount to same server when null auth is used [CIFS] Fix stale mode after readdir when cifsacl specified [CIFS] add mode to acl conversion helper function [CIFS] Fix incorrect mode when ACL had deny access control entries [CIFS] Add uid to key description so krb can handle user mounts [CIFS] Fix walking out end of cifs dacl [CIFS] Add upcall files for cifs to use spnego/kerberos [CIFS] add OIDs for KRB5 and MSKRB5 to ASN1 parsing routines [CIFS] Register and unregister cifs_spnego_key_type on module init/exit [CIFS] implement upcalls for SPNEGO blob via keyctl API [CIFS] allow cifs_calc_signature2 to deal with a zero length iovec [CIFS] If no Access Control Entries, set mode perm bits to zero [CIFS] when mount helper missing fix slash wrong direction in share [CIFS] Don't request too much permission when reading an ACL [CIFS] enable get mode from ACL when cifsacl mount option specified [CIFS] ACL support part 8 [CIFS] acl support part 7 [CIFS] acl support part 6 [CIFS] acl support part 6 [CIFS] remove unused funtion compile warning when experimental off ...
| * [CIFS] implement upcalls for SPNEGO blob via keyctl APIJeff Layton2007-11-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add routines to handle upcalls to userspace via keyctl for the purpose of getting a SPNEGO blob for a particular uid and server combination. Clean up the Makefile a bit and set it up to only compile cifs_spnego if CONFIG_CIFS_UPCALL is set. Also change CONFIG_CIFS_UPCALL to depend on CONFIG_KEYS rather than CONFIG_CONNECTOR. cifs_spnego.h defines the communications between kernel and userspace and is intended to be shared with userspace programs. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | Kbuild/doc: fix links to Documentation filesDirk Hohndel2007-10-301-3/+3
|/ | | | | | | Fix links to files in Documentation/* in various Kconfig files Signed-off-by: Dirk Hohndel <hohndel@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* jbd: config_jbd_debug cannot create /proc entryJose R. Santos2007-10-191-5/+5
| | | | | | | | | | | | | | | | | | The jbd-debug file used to be located in /proc/sys/fs/jbd-debug, but create_proc_entry() does not do lookups on file names that are more that one directory deep. This causes the entry creation to fail and hence, no proc file is created. Instead of fixing this on procfs might as well move the jbd2-debug file to debugfs which would be the preferred location for this kind of tunable. The new location is now /sys/kernel/debug/jbd/jbd-debug. [akpm@linux-foundation.org: zillions of cleanups] Signed-off-by: Jose R. Santos <jrs@us.ibm.com> Acked-by: Jan Kara <jack@suse.cz> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Ext4: Uninitialized Block GroupsAndreas Dilger2007-10-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In pass1 of e2fsck, every inode table in the fileystem is scanned and checked, regardless of whether it is in use. This is this the most time consuming part of the filesystem check. The unintialized block group feature can greatly reduce e2fsck time by eliminating checking of uninitialized inodes. With this feature, there is a a high water mark of used inodes for each block group. Block and inode bitmaps can be uninitialized on disk via a flag in the group descriptor to avoid reading or scanning them at e2fsck time. A checksum of each group descriptor is used to ensure that corruption in the group descriptor's bit flags does not cause incorrect operation. The feature is enabled through a mkfs option mke2fs /dev/ -O uninit_groups A patch adding support for uninitialized block groups to e2fsprogs tools has been posted to the linux-ext4 mailing list. The patches have been stress tested with fsstress and fsx. In performance tests testing e2fsck time, we have seen that e2fsck time on ext3 grows linearly with the total number of inodes in the filesytem. In ext4 with the uninitialized block groups feature, the e2fsck time is constant, based solely on the number of used inodes rather than the total inode count. Since typical ext4 filesystems only use 1-10% of their inodes, this feature can greatly reduce e2fsck time for users. With performance improvement of 2-20 times, depending on how full the filesystem is. The attached graph shows the major improvements in e2fsck times in filesystems with a large total inode count, but few inodes in use. In each group descriptor if we have EXT4_BG_INODE_UNINIT set in bg_flags: Inode table is not initialized/used in this group. So we can skip the consistency check during fsck. EXT4_BG_BLOCK_UNINIT set in bg_flags: No block in the group is used. So we can skip the block bitmap verification for this group. We also add two new fields to group descriptor as a part of uninitialized group patch. __le16 bg_itable_unused; /* Unused inodes count */ __le16 bg_checksum; /* crc16(sb_uuid+group+desc) */ bg_itable_unused: If we have EXT4_BG_INODE_UNINIT not set in bg_flags then bg_itable_unused will give the offset within the inode table till the inodes are used. This can be used by fsck to skip list of inodes that are marked unused. bg_checksum: Now that we depend on bg_flags and bg_itable_unused to determine the block and inode usage, we need to make sure group descriptor is not corrupt. We add checksum to group descriptor to detect corruption. If the descriptor is found to be corrupt, we mark all the blocks and inodes in the group used. Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: Andreas Dilger <adilger@clusterfs.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
* menuconfig: transform Network Filesystems menuJan Engelhardt2007-10-171-2/+14
| | | | | | | | | | | | | | | | | Turn Network File Systems into a menuconfig so that it can be disabled at once. (Note: I added a "default y". If you do not like that, speak up.) Signed-off-by: Jan Engelhardt <jengelh@gmx.de> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Steven French <sfrench@us.ibm.com> Cc: David Howells <dhowells@redhat.com> Cc: Eric Van Hensbergen <ericvh@hera.kernel.org> Cc: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* quota: send messages via netlinkJan Kara2007-10-171-0/+18
| | | | | | | | | | | | | Implement sending of quota messages via netlink interface. The advantage is that in userspace we can better decide what to do with the message - for example display a dialogue in your X session or just write the message to the console. As a bonus, we can get rid of problems with console locking deep inside filesystem code once we remove the old printing mechanism. Signed-off-by: Jan Kara <jack@suse.cz> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Remove valueless definition of hard-selected RAMFS optionRobert P. J. Day2007-10-171-14/+0
| | | | | | | | | | | | | | | | | | Since CONFIG_RAMFS is currently hard-selected to "y", and since Documentation/filesystems/ramfs-rootfs-initramfs.txt reads as follows: "The amount of code required to implement ramfs is tiny, because all the work is done by the existing Linux caching infrastructure. Basically, you're mounting the disk cache as a filesystem. Because of this, ramfs is not an optional component removable via menuconfig, since there would be negligible space savings." It seems pointless to leave this as a Kconfig entry. Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* allow disabling DNOTIFY without EMBEDDEDAdrian Bunk2007-10-171-2/+2
| | | | | | | | | | | | | | | | Allow disabling DNOTIFY with CONFIG_EMBEDDED=n. I'm currently running a kernel with dnotify disabled and I haven't run into any problem. Is there any popular application left that breaks without dnotify support in the kernel? Note that this patch does not remove dnotify support, it still defaults to "y", and the help text recommends enabling it. Signed-off-by: Adrian Bunk <bunk@kernel.org> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds2007-10-151-0/+8
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.linux-nfs.org/pub/linux/nfs-2.6: (131 commits) NFSv4: Fix a typo in nfs_inode_reclaim_delegation NFS: Add a boot parameter to disable 64 bit inode numbers NFS: nfs_refresh_inode should clear cache_validity flags on success NFS: Fix a connectathon regression in NFSv3 and NFSv4 NFS: Use nfs_refresh_inode() in ops that aren't expected to change the inode SUNRPC: Don't call xprt_release in call refresh SUNRPC: Don't call xprt_release() if call_allocate fails SUNRPC: Fix buggy UDP transmission [23/37] Clean up duplicate includes in [2.6 patch] net/sunrpc/rpcb_clnt.c: make struct rpcb_program static SUNRPC: Use correct type in buffer length calculations SUNRPC: Fix default hostname created in rpc_create() nfs: add server port to rpc_pipe info file NFS: Get rid of some obsolete macros NFS: Simplify filehandle revalidation NFS: Ensure that nfs_link() returns a hashed dentry NFS: Be strict about dentry revalidation when doing exclusive create NFS: Don't zap the readdir caches upon error NFS: Remove the redundant nfs_reval_fsid() NFSv3: Always use directory post-op attributes in nfs3_proc_lookup ... Fix up trivial conflict due to sock_owned_by_user() cleanup manually in net/sunrpc/xprtsock.c
| * SUNRPC: Add RDMA dependency to SUNRPC_XPRT_RDMA\"Talpey, Thomas\2007-10-091-1/+1
| | | | | | | | | | | | | | | | Add a dependency on RDMA before enabling SUNRPC_XPRT_RDMA Yes, "INFINIBAND" also turns on iWARP and other RDMA support. Signed-off-by: Tom Talpey <talpey@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * RPCRDMA: Kconfig and header file with rpcrdma protocol definitions\"Talpey, Thomas\2007-10-091-0/+8
| | | | | | | | | | | | | | | | | | This file implements the configuration target, protocol template and constants for the rpcrdma transport framing, for use by the xprtrdma rpc transport implementation. Signed-off-by: Tom Talpey <talpey@netapp.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | Merge Linux 2.6.23David Woodhouse2007-10-131-3/+0
|\ \ | |/
| * ocfs2: update docs for new featuresMark Fasheh2007-09-111-3/+0
| | | | | | | | | | | | | | | | Update documentation listing ocfs2 features to reflect the current state of the file system. Add missing descriptions for some mount options which ocfs2 supports. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | [JFFS2] LZO compression should default off for compatibility.David Woodhouse2007-08-021-2/+3
| | | | | | | | Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | Merge branch 'master' of ↵David Woodhouse2007-07-231-8/+9
|\ \ | |/ | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * NFSD/SUNRPC: Fix the automatic selection of RPCSEC_GSSTrond Myklebust2007-07-191-1/+1
| | | | | | | | | | | | Bruce's patch broke the ability to compile RPCSEC_GSS as a module. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * jbd2: Move jbd2-debug file to debugfsJose R. Santos2007-07-181-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | The jbd2-debug file used to be located in /proc/sys/fs/jbd2-debug, but it incorrectly used create_proc_entry() instead of the sysctl routines, and no proc entry was ever created. Instead of fixing this we might as well move the jbd2-debug file to debugfs which would be the preferred location for this kind of tunable. The new location is now /sys/kernel/debug/jbd2/jbd2-debug. Signed-off-by: Jose R. Santos <jrs@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
generated by cgit v1.1 at 2024-12-26 21:24:05 +0000