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* NFS: Eliminate client_sys in favour of cl_rpcclientDavid Howells2006-09-225-176/+177
| | | | | | | | | | | | | | | | | | | Eliminate nfs_server::client_sys in favour of nfs_client::cl_rpcclient as we only really need one per server that we're talking to since it doesn't have any security on it. The retransmission management variables are also moved to the common struct as they're required to set up the cl_rpcclient connection. The NFS2/3 client and client_acl connections are thenceforth derived by cloning the cl_rpcclient connection and post-applying the authorisation flavour. The code for setting up the initial common connection has been moved to client.c as nfs_create_rpc_client(). All the NFS program definition tables are also moved there as that's where they're now required rather than super.c. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Move rpc_ops from nfs_server to nfs_clientDavid Howells2006-09-225-32/+41
| | | | | | | | Move the rpc_ops from the nfs_server struct to the nfs_client struct as they're common to all server records of a particular NFS protocol version. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Make better use of inode* dereferencing macrosDavid Howells2006-09-222-6/+6
| | | | | | | | Make better use of inode* dereferencing macros to hide dereferencing chains (including NFS_PROTO and NFS_CLIENT). Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Maintain a common server record for NFS2/3 as well as for NFS4David Howells2006-09-221-1/+20
| | | | | | | | Maintain a common server record for NFS2/3 as well as for NFS4 so that common stuff can be moved there from struct nfs_server. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add extra const qualifiersDavid Howells2006-09-226-13/+14
| | | | | | | Add some extra const qualifiers into NFS. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Use the dentry superblock directly in nfs_statfs()David Howells2006-09-221-7/+6
| | | | | | | | | Use the nominated dentry's superblock directly in the NFS statfs() op to get a file handle, rather than using s_root (which will become a dummy dentry in a future patch). Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Generalise the nfs_client structureDavid Howells2006-09-2210-222/+364
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Generalise the nfs_client structure by: (1) Moving nfs_client to a more general place (nfs_fs_sb.h). (2) Renaming its maintenance routines to be non-NFS4 specific. (3) Move those maintenance routines to a new non-NFS4 specific file (client.c) and move the declarations to internal.h. (4) Make nfs_find/get_client() take a full sockaddr_in to include the port number (will be required for NFS2/3). (5) Make nfs_find/get_client() take the NFS protocol version (again will be required to differentiate NFS2, 3 & 4 client records). Also: (6) Make nfs_client construction proceed akin to inodes, marking them as under construction and providing a function to indicate completion. (7) Make nfs_get_client() wait interruptibly if it finds a client that it can share, but that client is currently being constructed. (8) Make nfs4_create_client() use (6) and (7) instead of locking cl_sem. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add a server capabilities NFS RPC opDavid Howells2006-09-221-0/+1
| | | | | | | Add a set_capabilities NFS RPC op so that the server capabilities can be set. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add a lookupfh NFS RPC opDavid Howells2006-09-221-0/+47
| | | | | | | | | Add a lookup filehandle NFS RPC op so that a file handle can be looked up without requiring dentries and inodes and other VFS stuff when doing an NFS4 pathwalk during mounting. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Return an error when starting the idmapping pipeDavid Howells2006-09-222-5/+10
| | | | | | | | Return an error when starting the idmapping pipe so that we can detect it failing. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Rename nfs_server::nfs4_stateDavid Howells2006-09-226-33/+33
| | | | | | | | Rename nfs_server::nfs4_state to nfs_client as it will be used to represent the client state for NFS2 and NFS3 also. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Rename struct nfs4_client to struct nfs_clientDavid Howells2006-09-2211-97/+97
| | | | | | | | Rename struct nfs4_client to struct nfs_client so that it can become the basis for a general client record for NFS2 and NFS3 in addition to NFS4. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Fix NFS4 callback up/down prototypesDavid Howells2006-09-222-5/+7
| | | | | | | | | Make the nfs_callback_up()/down() prototypes just do nothing if NFS4 is not enabled. Also make the down function void type since we can't really do anything if it fails. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Disambiguate nfs_stat_to_errno()David Howells2006-09-221-7/+7
| | | | | | | | Rename the NFS4 version of nfs_stat_to_errno() so that it doesn't conflict with the common one used by NFS2 and NFS3. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Fix up split of fs/nfs/inode.cDavid Howells2006-09-224-42/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | Fix ups for the splitting of the superblock stuff out of fs/nfs/inode.c, including: (*) Move the callback tcpport module param into callback.c. (*) Move the idmap cache timeout module param into idmap.c. (*) Changes to internal.h: (*) namespace-nfs4.c was renamed to nfs4namespace.c. (*) nfs_stat_to_errno() is in nfs2xdr.c, not nfs4xdr.c. (*) nfs4xdr.c is contingent on CONFIG_NFS_V4. (*) nfs4_path() is only uses if CONFIG_NFS_V4 is set. Plus also: (*) The sec_flavours[] table should really be const. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add dentry materialisation opDavid Howells2006-09-221-14/+150
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The attached patch adds a new directory cache management function that prepares a disconnected anonymous function to be connected into the dentry tree. The anonymous dentry is transferred the name and parentage from another dentry. The following changes were made in [try #2]: (*) d_materialise_dentry() now switches the parentage of the two nodes around correctly when one or other of them is self-referential. The following changes were made in [try #7]: (*) d_instantiate_unique() has had the interior part split out as function __d_instantiate_unique(). Callers of this latter function must be holding the appropriate locks. (*) _d_rehash() has been added as a wrapper around __d_rehash() to call it with the most obvious hash list (the one from the name). d_rehash() now calls _d_rehash(). (*) d_materialise_dentry() is now __d_materialise_dentry() and is static. (*) d_materialise_unique() added to perform the combination of d_find_alias(), d_materialise_dentry() and d_add_unique() that the NFS client was doing twice, all within a single dcache_lock critical section. This reduces the number of times two different spinlocks were being accessed. The following further changes were made: (*) Add the dentries onto their parents d_subdirs lists. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add an ACCESS cache memory shrinkerTrond Myklebust2006-09-223-0/+52
| | | | | | | | | | | A pinned inode may in theory end up filling memory with cached ACCESS calls. This patch ensures that the VM may shrink away the cache in these particular cases. The shrinker works by iterating through the list of inodes on the global nfs_access_lru_list, and removing the least recently used access cache entry until it is done (or until the entire cache is empty). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add a global LRU list for the ACCESS cacheTrond Myklebust2006-09-222-1/+36
| | | | | | ...in order to allow the addition of a memory shrinker. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* NFS: Add a new ACCESS rpc call cache to the linux nfs clientTrond Myklebust2006-09-222-26/+120
| | | | | | | | | | | The current access cache only allows one entry at a time to be cached for each inode. Add a per-inode red-black tree in order to allow more than one to be cached at a time. Should significantly cut down the time spent in path traversal for shared directories such as ${PATH}, /usr/share, etc. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2006-09-229-14/+76
|\ | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] statfs for cifs unix extensions no longer experimental [CIFS] New POSIX locking code not setting rc properly to zero on successful [CIFS] Support deep tree mounts (e.g. mounts to //server/share/path)
| * [CIFS] statfs for cifs unix extensions no longer experimentalSteve French2006-09-221-2/+0
| | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] New POSIX locking code not setting rc properly to zero on successfulSteve French2006-09-211-1/+2
| | | | | | | | | | | | | | unlock in case where server does not support POSIX locks and nobrl is not specified. Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Support deep tree mounts (e.g. mounts to //server/share/path)Steve French2006-09-217-11/+74
| | | | | | | | | | | | Samba bugzilla #4040 Signed-off-by: Steve French <sfrench@us.ibm.com>
* | Merge branch 'upstream-linus' of ↵Linus Torvalds2006-09-2221-134/+440
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: ocfs2: Remove overzealous BUG_ON() ocfs2: Don't print on unknown remote blocking call ocfs2: Remove EXPERIMENTAL dependency ocfs2: implement directory read-ahead ocfs2: properly update i_mtime on buffered write ocfs2: Fix directory link count checks in ocfs2_link() ocfs2: move nlink check in ocfs2_mknod() ocfs2: Fix heartbeat sector calculation [PATCH] fs/ocfs2/ioctl.c should #include "ioctl.h" ocfs2: add ext2 attributes configfs: Prevent duplicate subsystem names.
| * | ocfs2: Remove overzealous BUG_ON()Mark Fasheh2006-09-201-8/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | The truncate code was never supposed to BUG() on an allocator it doesn't know about, but rather to ignore it. Right now, this does nothing, but when we change our allocation paths to use all suballocator files, this will allow current versions of the fs module to work fine. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Don't print on unknown remote blocking callMark Fasheh2006-09-201-6/+4
| | | | | | | | | | | | Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Remove EXPERIMENTAL dependencyMark Fasheh2006-09-201-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | Things have been working pretty well for a while now. We should've probably done this at least one kernel revision ago, but it doesn't hurt to be paranoid. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: implement directory read-aheadMark Fasheh2006-09-207-47/+115
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Uptodate.c now knows about read-ahead buffers. Use some more aggressive logic in ocfs2_readdir(). The two functions which currently use directory read-ahead are ocfs2_find_entry() and ocfs2_readdir(). Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: properly update i_mtime on buffered writeMark Fasheh2006-09-201-49/+34
| | | | | | | | | | | | | | | | | | | | | | | | We weren't always updating i_mtime on writes, so fix ocfs2_commit_write() to handle this. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com> Acked-by: Zach Brown <zach.brown@oracle.com>
| * | ocfs2: Fix directory link count checks in ocfs2_link()Tiger Yang2006-09-201-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | Remove the redundant "i_nlink >= OCFS2_LINK_MAX" check and adds an unlinked directory check in ocfs2_link(). Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: move nlink check in ocfs2_mknod()Mark Fasheh2006-09-201-7/+5
| | | | | | | | | | | | | | | | | | | | | | | | The dir nlink check in ocfs2_mknod() was being done outside of the cluster lock, which means we could have been checking against a stale version of the inode. Fix this by doing the check after the cluster lock instead. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Fix heartbeat sector calculationMathieu Avila2006-09-201-2/+6
| | | | | | | | | | | | | | | | | | This fixes things for devices which set max_sectors to 8. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | [PATCH] fs/ocfs2/ioctl.c should #include "ioctl.h"Adrian Bunk2006-09-201-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | Every file should #include the headers containing the prototypes for its global functions. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: add ext2 attributesHerbert Poetzl2006-09-209-6/+217
| | | | | | | | | | | | | | | | | | | | | | | | | | | Support immutable, and other attributes. Some renaming and other minor fixes done by myself. Signed-off-by: Herbert Poetzl <herbert@13thfloor.at> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | configfs: Prevent duplicate subsystem names.Joel Becker2006-09-201-2/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For all child objects, creation comes through mkdir(2), so duplicate names are prevented. Subsystems, though, are registered by client drivers at init_module()/__init time. This patch prevents duplicate subsystem names. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds2006-09-221-10/+11
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (64 commits) [BLOCK] dm-crypt: trivial comment improvements [CRYPTO] api: Deprecate crypto_digest_* and crypto_alg_available [CRYPTO] padlock: Convert padlock-sha to use crypto_hash [CRYPTO] users: Use crypto_comp and crypto_has_* [CRYPTO] api: Add crypto_comp and crypto_has_* [CRYPTO] users: Use crypto_hash interface instead of crypto_digest [SCSI] iscsi: Use crypto_hash interface instead of crypto_digest [CRYPTO] digest: Remove old HMAC implementation [CRYPTO] doc: Update documentation for hash and me [SCTP]: Use HMAC template and hash interface [IPSEC]: Use HMAC template and hash interface [CRYPTO] tcrypt: Use HMAC template and hash interface [CRYPTO] hmac: Add crypto template implementation [CRYPTO] digest: Added user API for new hash type [CRYPTO] api: Mark parts of cipher interface as deprecated [PATCH] scatterlist: Add const to sg_set_buf/sg_init_one pointer argument [CRYPTO] drivers: Remove obsolete block cipher operations [CRYPTO] users: Use block ciphers where applicable [SUNRPC] GSS: Use block ciphers where applicable [IPSEC] ESP: Use block ciphers where applicable ...
| * | | [CRYPTO] users: Use crypto_hash interface instead of crypto_digestHerbert Xu2006-09-211-10/+11
| |/ / | | | | | | | | | | | | | | | | | | This patch converts all remaining crypto_digest users to use the new crypto_hash interface. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
* | | [JFFS2] Remove unneeded ifdefs from jffs2_fs_i.hMichal Piotrowski2006-09-221-4/+0
|/ / | | | | | | | | | | | | | | | | | | | | We certainly don't need the check for Linux version > 2.5.2, and in fact we can also live without the __ECOS check, since we can just add it back in the eCos git tree which is automatically derived from the Linux fs/jffs2 subdirectory in the upstream git tree. Signed-off-by: Michal Piotrowski <michal.k.k.piotrowski@gmail.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | Merge branch 'fixes' of git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds2006-09-193-7/+9
|\ \ | | | | | | | | | | | | | | | | | | * 'fixes' of git://git.linux-nfs.org/pub/linux/nfs-2.6: NFS: Fix nfs_page use after free issues in fs/nfs/write.c NFSv4: Fix incorrect semaphore release in _nfs4_do_open() NFS: Fix Oopsable condition in nfs_readpage_sync()
| * | NFS: Fix nfs_page use after free issues in fs/nfs/write.cTrond Myklebust2006-09-191-2/+2
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Fix incorrect semaphore release in _nfs4_do_open()Trond Myklebust2006-09-191-3/+3
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Fix Oopsable condition in nfs_readpage_sync()Trond Myklebust2006-09-191-2/+4
| | | | | | | | | | | | Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | Merge git://git.infradead.org/mtd-2.6Linus Torvalds2006-09-193-3/+5
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/mtd-2.6: [MTD] Use SEEK_{SET,CUR,END} instead of hardcoded values in mtdchar lseek() MTD: Fix bug in fixup_convert_atmel_pri [JFFS2][SUMMARY] Fix a summary collecting bug. [PATCH] [MTD] DEVICES: Fill more device IDs in the structure of m25p80 MTD: Add lock/unlock operations for Atmel AT49BV6416 MTD: Convert Atmel PRI information to AMD format fs/jffs2/xattr.c: remove dead code [PATCH] [MTD] Maps: Add dependency on alternate probe methods to physmap [PATCH] MTD: Add Macronix MX29F040 to JEDEC [MTD] Fixes of performance and stability issues in CFI driver. block2mtd.c: Make kernel boot command line arguments work (try 4) [MTD NAND] Fix lookup error in nand_get_flash_type() remove #error on !PCI from pmc551.c MTD: [NAND] Fix the sharpsl driver after breakage from a core conversion [MTD] NAND: OOB buffer offset fixups make fs/jffs2/nodelist.c:jffs2_obsolete_node_frag() static [PATCH] [MTD] NAND: fix dead URL in Kconfig
| * | | [JFFS2][SUMMARY] Fix a summary collecting bug.Havasi Ferenc2006-09-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some special case (padding because of sync or umount) it can be possible that summary information is not fit to the end of the erase block. In these cases the collecting of summary is disabled for this erase block. The problem was that this was not respected by jffs2_sum_add_kvec(). This patch fix this bug. From: Zoltan Sogor <weth@inf.u-szeged.hu> Signed-off-by: Ferenc Havasi <havasi@inf.u-szeged.hu> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
| * | | Merge branch 'master' of ↵David Woodhouse2006-08-30112-1294/+3018
| |\ \ \ | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
| * | | | fs/jffs2/xattr.c: remove dead codeAdrian Bunk2006-08-151-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes some obvious dead code spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Josh Boyer <jwboyer@gmail.com>
| * | | | make fs/jffs2/nodelist.c:jffs2_obsolete_node_frag() staticAdrian Bunk2006-07-072-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch makes the needlessly global jffs2_obsolete_node_frag() static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | | | | [PATCH] EXT2: Remove superblock lock contention in ext2_statfsDave Kleikamp2006-09-193-4/+0
| |_|/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a performance degradation introduced in 2.6.17. (30% degradation running dbench with 16 threads) Commit 21730eed11de42f22afcbd43f450a1872a0b5ea1, which claims to make EXT2_DEBUG work again, moves the taking of the kernel lock out of debug-only code in ext2_count_free_inodes and ext2_count_free_blocks and into ext2_statfs. The same problem was fixed in ext3 by removing the lock completely (commit 5b11687924e40790deb0d5f959247ade82196665) Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] JFFS2: SUMMARY: fix a summary collecting bugZoltan Sogor2006-09-161-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In some special case (padding because of sync or umount) it can be possible that summary information is not fit to the end of the erase block. In these cases the collecting of summary is disabled for this erase block. The problem was that this was not respected by jffs2_sum_add_kvec(). This patch fix this bug. Signed-off-by: Ferenc Havasi <havasi@inf.u-szeged.hu> Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | | | [PATCH] ext3 sequential read regression fixSuparna Bhattacharya2006-09-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ext3-get-blocks support caused ~20% degrade in Sequential read performance (tiobench). Problem is with marking the buffer boundary so IO can be submitted right away. Here is the patch to fix it. 2.6.18-rc6: ----------- # ./iotest 1048576+0 records in 1048576+0 records out 4294967296 bytes (4.3 GB) copied, 75.2726 seconds, 57.1 MB/s real 1m15.285s user 0m0.276s sys 0m3.884s 2.6.18-rc6 + fix: ----------------- [root@elm3a241 ~]# ./iotest 1048576+0 records in 1048576+0 records out 4294967296 bytes (4.3 GB) copied, 62.9356 seconds, 68.2 MB/s The boundary block check in ext3_get_blocks_handle needs to be adjusted against the count of blocks mapped in this call, now that it can map more than one block. Signed-off-by: Suparna Bhattacharya <suparna@in.ibm.com> Tested-by: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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