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| * | ext4: fixes block group number being set to a negative valueAvantika Mathur2008-01-281-48/+53
| | | | | | | | | | | | | | | | | | | | | | | | This patch fixes various places where the group number is set to a negative value. Signed-off-by: Avantika Mathur <mathur@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | ext4: add ext4_group_t, and change all group variables to this type.Avantika Mathur2008-01-286-80/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In many places variables for block group are of type int, which limits the maximum number of block groups to 2^31. Each block group can have up to 2^15 blocks, with a 4K block size, and the max filesystem size is limited to 2^31 * (2^15 * 2^12) = 2^58 -- or 256 PB This patch introduces a new type ext4_group_t, of type unsigned long, to represent block group numbers in ext4. All occurrences of block group variables are converted to type ext4_group_t. Signed-off-by: Avantika Mathur <mathur@us.ibm.com>
| * | ext4 extents: remove unneeded castsEric Sandeen2008-01-281-27/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | There are many casts in extents.c which are not needed, as the variables are already the type of the cast, or are being promoted for no particular reason in printk's. Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com>
| * | ext4: Introduce ext4_lblk_tAneesh Kumar K.V2008-01-285-196/+116
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new data type ext4_lblk_t to represent the logical file blocks. This is the preparatory patch to support large files in ext4 The follow up patch with convert the ext4_inode i_blocks to represent the number of blocks in file system block size. This changes makes it possible to have a block number 2**32 -1 which will result in overflow if the block number is represented by signed long. This patch convert all the block number to type ext4_lblk_t which is typedef to __u32 Also remove dead code ext4_ext_walk_space Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Eric Sandeen <sandeen@redhat.com>
| * | ext4: Avoid rec_len overflow with 64KB block sizeJan Kara2008-01-282-46/+43
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With 64KB blocksize, a directory entry can have size 64KB which does not fit into 16 bits we have for entry lenght. So we store 0xffff instead and convert value when read from / written to disk. The patch also converts some places to use ext4_next_entry() when we are changing them anyway. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mingming Cao <cmm@us.ibm.com>
| * | ext4: Support large blocksize up to PAGESIZETakashi Sato2008-01-281-0/+5
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch set supports large block size(>4k, <=64k) in ext4, just enlarging the block size limit. But it is NOT possible to have 64kB blocksize on ext4 without some changes to the directory handling code. The reason is that an empty 64kB directory block would have a rec_len == (__u16)2^16 == 0, and this would cause an error to be hit in the filesystem. The proposed solution is treat 64k rec_len with a an impossible value like rec_len = 0xffff to handle this. The Patch-set consists of the following 2 patches. [1/2] ext4: enlarge blocksize - Allow blocksize up to pagesize [2/2] ext4: fix rec_len overflow - prevent rec_len from overflow with 64KB blocksize Now on 64k page ppc64 box runs with this patch set we could create a 64k block size ext4dev, and able to handle empty directory block. Signed-off-by: Takashi Sato <sho@tnes.nec.co.jp> Signed-off-by: Mingming Cao <cmm@us.ibm.com>
* | ocfs2: Fix userspace ABI breakage in sysfsJoel Becker2008-01-281-1/+1
|/ | | | | | | | | | | | | The userspace ABI of ocfs2's internal cluster stack (o2cb) was broken by commit c60b71787982cefcf9fa09aa281fa8c4c685d557 "kset: convert ocfs2 to use kset_create". Specifically, the '/sys/o2cb' kset was moved to '/sys/fs/o2cb'. This breaks all ocfs2 tools and renders the filesystem unmountable. This fix moves '/sys/o2cb' back where it belongs. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* Merge branch 'for-2.6.25' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2008-01-291-4/+4
|\ | | | | | | | | | | | | | | * 'for-2.6.25' of git://git.kernel.dk/linux-2.6-block: block: implement drain buffers __bio_clone: don't calculate hw/phys segment counts block: allow queue dma_alignment of zero blktrace: Add blktrace ioctls to SCSI generic devices
| * __bio_clone: don't calculate hw/phys segment countsJens Axboe2008-01-281-4/+4
| | | | | | | | | | | | | | | | | | If the users sets a new ->bi_bdev on the bio after __bio_clone() has returned it, the "segment counts valid" flag still remains even though it may be different with the new target. So don't calculate segment counts in __bio_clone(). Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | cfq-iosched: relax IOPRIO_CLASS_IDLE restrictionsJens Axboe2008-01-281-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently you must be root to set idle io prio class on a process. This is due to the fact that the idle class is implemented as a true idle class, meaning that it will not make progress if someone else is requesting disk access. Unfortunately this means that it opens DOS opportunities by locking down file system resources, hence it is root only at the moment. This patch relaxes the idle class a little, by removing the truly idle part (which entals a grace period with associated timer). The modifications make the idle class as close to zero impact as can be done while still guarenteeing progress. This means we can relax the root only criteria as well. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | io context sharing: preliminary supportJens Axboe2008-01-281-1/+0
| | | | | | | | | | | | | | Detach task state from ioc, instead keep track of how many processes are accessing the ioc. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | ioprio: move io priority from task_struct to io_contextJens Axboe2008-01-281-8/+21
|/ | | | | | | This is where it belongs and then it doesn't take up space for a process that doesn't do IO. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2008-01-2623-97/+1052
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 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] DFS build fixesSteve French2008-01-256-31/+61
| | | | | | | | | | | | Also includes a few minor changes suggested by Christoph Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] DFS support: provide shrinkable mountsIgor Mammedov2008-01-255-1/+387
| | | | | | | | | | Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Do not log path names in lookup errorsSteve French2008-01-201-6/+4
| | | | | | | | | | | | | | | | | | | | Andi Kleen noticed that we were logging access denied errors (which is noisy in the dmesg log, and not needed to be logged) and that we were logging path names on that an other errors (e.g. EIO) which we should not be doing. CC: Andi Kleen <ak@suse.de> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] DFS support patchset: Added mountdataIgor Mammedov2008-01-113-2/+41
| | | | | | | | | | | | | | Also cifs_fs_type was made not static for ussage in dfs code. Signed-off-by: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Forgot to add two new files from previous commitSteve French2008-01-102-0/+155
| | | | | | | | | | | | Thanks to Igor for noticing this. CC: Igor Mammedov <niallain@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] DNS name resolution helper upcall for cifsSteve French2008-01-093-14/+42
| | | | | | | | | | | | | | | | | | | | | | | | 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>
| * [CIFS] fix checkpatch warnings in fs/cifs/inode.cSteve French2008-01-083-25/+31
| | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] hold ses sem on tcp session reconnect during mountSteve French2008-01-031-3/+3
| | | | | | | | | | Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Allow setting mode via cifs aclSteve French2007-12-316-13/+315
| | | | | | | | | | | | | | Requires cifsacl mount flag to be on and CIFS_EXPERIMENTAL enabled CC: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] fix unicode string alignment in SPNEGO setupJeff Layton2007-12-311-1/+1
| | | | | | | | | | | | | | | | | | Unicode strings need to be word aligned, but the code that handles that is currently not taking the length of the SPNEGO blob into account. Fix it to do so. Signed-off-by: Jeff Layton <jlayton@tupile.poochiereds.net> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] cifs_partialpagewrite() cleanupSteve French2007-12-311-5/+3
| | | | | | | | | | | | | | rc cannot be -EBADF now and condition is always true Signed-off-by: Vasily Averin <vvs@sw.ru> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] use krb5 session key from first SMB session after a NegProtJeff Layton2007-12-311-3/+5
| | | | | | | | | | | | | | | | | | Currently, any new kerberos SMB session overwrites the server's session key. The session key should only be set by the first SMB session set up on the socket. Signed-off-by: Jeff Layton <jlayton@tupile.poochiereds.net> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] redo existing session setup if needed in cifs_mountJeff Layton2007-12-312-2/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When cifs_mount finds an existing SMB session that it can use for a new mount, it does not check to see whether that session is in need of being reconnected. An easy way to reproduce: 1) mount //server/share1 2) watch /proc/fs/cifs/DebugData for the share to go DISCONNECTED 3) mount //server/share2 with same creds as in step 1. The second mount will fail because CIFSTCon returned -EAGAIN. If you do an operation in share1 and then reattempt the mount it will work (since the session is reestablished). The following patch fixes this by having cifs_mount check the status of the session when it picks an existing session and calling cifs_setup_session on it again if it's in need of reconnection. Thanks to Wojciech Pilorz for the initial bug report. Signed-off-by: Jeff Layton <jlayton@tupile.poochiereds.net> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Only dump SPNEGO key if CONFIG_CIFS_DEBUG2 is setJeff Layton2007-12-311-2/+4
| | | | | | | | | | | | | | | | The SPNEGO key data is not terribly interesting except in certain debugging situations. Only dump it to the ring buffer if needed. Signed-off-by: Jeff Layton <jlayton@tupile.poochiereds.net> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] fix SetEA failure to some Samba versionsSteve French2007-12-302-2/+2
| | | | | | | | | | | | | | Thanks to Oleg Gvozdev for noticing the problem. CC: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2008-01-252-12/+25
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (200 commits) [SCSI] usbstorage: use last_sector_bug flag universally [SCSI] libsas: abstract STP task status into a function [SCSI] ultrastor: clean up inline asm warnings [SCSI] aic7xxx: fix firmware build [SCSI] aacraid: fib context lock for management ioctls [SCSI] ch: remove forward declarations [SCSI] ch: fix device minor number management bug [SCSI] ch: handle class_device_create failure properly [SCSI] NCR5380: fix section mismatch [SCSI] sg: fix /proc/scsi/sg/devices when no SCSI devices [SCSI] IB/iSER: add logical unit reset support [SCSI] don't use __GFP_DMA for sense buffers if not required [SCSI] use dynamically allocated sense buffer [SCSI] scsi.h: add macro for enclosure bit of inquiry data [SCSI] sd: add fix for devices with last sector access problems [SCSI] fix pcmcia compile problem [SCSI] aacraid: add Voodoo Lite class of cards. [SCSI] aacraid: add new driver features flags [SCSI] qla2xxx: Update version number to 8.02.00-k7. [SCSI] qla2xxx: Issue correct MBC_INITIALIZE_FIRMWARE command. ...
| * | [SCSI] sysfs: add filter function to groupsJames Bottomley2008-01-231-10/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch allows the various users of attribute_groups to selectively allow the appearance of group attributes. The primary consumer of this will be the transport classes in which we currently have elaborate attribute selection algorithms to do this same thing. Acked-by: Greg KH <greg@kroah.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
| * | [SCSI] sysfs: fix the sysfs_add_file_to_group interfacesJames Bottomley2008-01-231-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I can't see a reason why these shouldn't work on every group. However, they only seem to work on named groups. This patch allows the group functions to work on anonymous groups (those with NULL names). Acked-by: Tejun Heo <htejun@gmail.com> Acked-by: Kay Sievers <kay.sievers@vrfy.org> Acked-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
* | | Merge branch 'upstream-linus' of ↵Linus Torvalds2008-01-2548-1453/+1827
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 ...
| * | | ocfs2: clean up bh null checksMark Fasheh2008-01-252-15/+8
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If we know a buffer_head is non-null, then brelse() is unnecessary and put_bh() can be used instead. Also, an explicit check for NULL is unnecessary when using brelse(). This patch only covers buffer_head_io.c and resize.c, which have recently added code which exhibits this problem. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2: document access rules for blocked_lock_listMark Fasheh2008-01-251-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ocfs2_super->blocked_lock_list and ocfs2_super->blocked_lock_count have some usage restrictions which aren't immediately obvious to anyone reading the code. It's a good idea to document this so that we avoid making costly mistakes in the future. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | configfs: file.c fix possible recursive lockingJoonwoo Park2008-01-251-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | configfs_register_subsystem() with default_groups triggers recursive locking. it seems that mutex_lock_nested is needed. ============================================= [ INFO: possible recursive locking detected ] 2.6.24-rc6 #145 --------------------------------------------- swapper/1 is trying to acquire lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40c9a9e>] configfs_add_file+0x2e/0x70 but task is already holding lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca985>] configfs_register_subsystem+0x55/0x130 other info that might help us debug this: 1 lock held by swapper/1: #0: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca985>] configfs_register_subsystem+0x55/0x130 stack backtrace: Pid: 1, comm: swapper Not tainted 2.6.24-rc6 #145 [<c40053ba>] show_trace_log_lvl+0x1a/0x30 [<c4005e82>] show_trace+0x12/0x20 [<c400687e>] dump_stack+0x6e/0x80 [<c404ec72>] __lock_acquire+0xe62/0x1120 [<c404efb2>] lock_acquire+0x82/0xa0 [<c43fda88>] mutex_lock_nested+0x98/0x2e0 [<c40c9a9e>] configfs_add_file+0x2e/0x70 [<c40c9b0c>] configfs_create_file+0x2c/0x40 [<c40ca639>] configfs_attach_item+0x139/0x220 [<c40ca734>] configfs_attach_group+0x14/0x140 [<c40ca7e9>] configfs_attach_group+0xc9/0x140 [<c40ca9f6>] configfs_register_subsystem+0xc6/0x130 [<c45c8186>] init_netconsole+0x2b6/0x300 [<c45a75f2>] kernel_init+0x142/0x320 [<c4004fb3>] kernel_thread_helper+0x7/0x14 ======================= Signed-off-by: Joonwoo Park <joonwpark81@gmail.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | configfs: dir.c fix possible recursive lockingJoonwoo Park2008-01-251-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | configfs_register_subsystem() with default_groups triggers recursive locking. it seems that mutex_lock_nested is needed. ============================================= [ INFO: possible recursive locking detected ] 2.6.24-rc6 #141 --------------------------------------------- swapper/1 is trying to acquire lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca76f>] configfs_attach_group+0x4f/0x190 but task is already holding lock: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca9d5>] configfs_register_subsystem+0x55/0x130 other info that might help us debug this: 1 lock held by swapper/1: #0: (&sb->s_type->i_mutex_key#3){--..}, at: [<c40ca9d5>] configfs_register_subsystem+0x55/0x130 stack backtrace: Pid: 1, comm: swapper Not tainted 2.6.24-rc6 #141 [<c40053ba>] show_trace_log_lvl+0x1a/0x30 [<c4005e82>] show_trace+0x12/0x20 [<c400687e>] dump_stack+0x6e/0x80 [<c404ec72>] __lock_acquire+0xe62/0x1120 [<c404efb2>] lock_acquire+0x82/0xa0 [<c43fdad8>] mutex_lock_nested+0x98/0x2e0 [<c40ca76f>] configfs_attach_group+0x4f/0x190 [<c40caa46>] configfs_register_subsystem+0xc6/0x130 [<c45c8186>] init_netconsole+0x2b6/0x300 [<c45a75f2>] kernel_init+0x142/0x320 [<c4004fb3>] kernel_thread_helper+0x7/0x14 ======================= Signed-off-by: Joonwoo Park <joonwpark81@gmail.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | 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: bump version numberMark Fasheh2008-01-254-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Bump the printed version to 1.5.0. This helps us quickly identify which version of Ocfs2 a bug filer is running. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2/dlm: Clear joining_node on hearbeat node downTao Ma2008-01-251-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently the process of dlm join contains 2 steps: query join and assert join. After query join, the joined node will set its joining_node. So if the joining node happens to panic before the 2nd step, the joined node will fail to clear its joining_node flag because that node isn't in the domain map. It at least cause 2 problems. 1. All the new join request will fail. So no new node can mount the volume. 2. The joined node can't umount the volume since during the umount process it has to wait for the joining_node to be unknown. So the umount will be hanged. The solution is to clear the joining_node before we check the domain map. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2: convert byte order of constant instead of variableMarcin Slusarz2008-01-252-6/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Convert byte order of constant instead of variable it will be done at compile time vs run time. Remove unused le32_and_cpu. Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2: Update default cluster timeoutsSunil Mushran2008-01-252-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Lots of people are having trouble with the default timeouts, which are too low. These new values are derived from an informal survey taken on ocfs2-users, as well as data from bug reports. This should reduce the amount of cluster disconnects and subsequent fencing seen during normal workloads. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2: printf fixesJan Kara2008-01-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Explicitely convert loff_t to long long in printf. Just for sure... Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2: Use generic_file_llseekJan Kara2008-01-251-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We should use generic_file_llseek() and not default_llseek() so that s_maxbytes gets properly checked when seeking. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2: Safer read_inline_data()Jan Kara2008-01-251-3/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In ocfs2_read_inline_data() we should store file size in loff_t. Although the file size should fit in 32 bits we cannot be sure in case filesystem is corrupted. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2: Silence false lockdep warningsJan Kara2008-01-257-11/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Create separate lockdep lock classes for system file's i_mutexes. They are used to guard allocations and similar things and thus rank differently than i_mutex of a regular file or directory. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | [PATCH 2/2] ocfs2: cluster aware flock()Mark Fasheh2008-01-256-1/+236
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hook up ocfs2_flock(), using the new flock lock type in dlmglue.c. A new mount option, "localflocks" is added so that users can revert to old functionality as need be. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | [PATCH 1/2] ocfs2: add flock lock typeMark Fasheh2008-01-255-0/+284
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds a new dlmglue lock type which is intended to back flock() requests. Since these locks are driven from userspace, usage rules are much more liberal than the typical Ocfs2 internal cluster lock. As a result, we can't make use of most dlmglue features - lock caching and lock level optimizations in particular. Additionally, userspace is free to deadlock itself, so we have to deal with that in the same way as the rest of the kernel - by allowing a signal to abort a lock request. In order to keep ocfs2_cluster_lock() complexity down, ocfs2_file_lock() does it's own dlm coordination. We still use the same helper functions though, so duplicated code is kept to a minimum. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2: Local alloc window size changeable via mount optionSunil Mushran2008-01-255-14/+59
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Local alloc is a performance optimization in ocfs2 in which a node takes a window of bits from the global bitmap and then uses that for all small local allocations. This window size is fixed to 8MB currently. This patch allows users to specify the window size in MB including disabling it by passing in 0. If the number specified is too large, the fs will use the default value of 8MB. mount -o localalloc=X /dev/sdX /mntpoint Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2: Support commit= mount optionMark Fasheh2008-01-253-2/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Mostly taken from ext3. This allows the user to set the jbd commit interval, in seconds. The default of 5 seconds stays the same, but now users can easily increase the commit interval. Typically, this would be increased in order to benefit performance at the expense of data-safety. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | | ocfs2: Add missing permission checksMark Fasheh2008-01-251-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Check that an online resize is being driven by a user with permission to change system resource limits. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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