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2008-04-19[PATCH] r/o bind mounts: write counts for truncate()Dave Hansen
Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: elevate write count for chmod/chown callersDave Hansen
chown/chmod,etc... don't call permission in the same way that the normal "open for write" calls do. They still write to the filesystem, so bump the write count during these operations. Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: elevate write count for open()sDave Hansen
This is the first really tricky patch in the series. It elevates the writer count on a mount each time a non-special file is opened for write. We used to do this in may_open(), but Miklos pointed out that __dentry_open() is used as well to create filps. This will cover even those cases, while a call in may_open() would not have. There is also an elevated count around the vfs_create() call in open_namei(). See the comments for more details, but we need this to fix a 'create, remount, fail r/w open()' race. Some filesystems forego the use of normal vfs calls to create struct files. Make sure that these users elevate the mnt writer count because they will get __fput(), and we need to make sure they're balanced. Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: elevate write count for ioctls()Dave Hansen
Some ioctl()s can cause writes to the filesystem. Take these, and make them use mnt_want/drop_write() instead. [AV: updated] Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: write count for file_update_time()Dave Hansen
Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: elevate write count for do_utimes()Dave Hansen
Now includes fix for oops seen by akpm. "never let a libc developer write your kernel code" - hch "nor, apparently, a kernel developer" - akpm Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Valdis Kletnieks <Valdis.Kletnieks@vt.edu> Cc: Balbir Singh <balbir@in.ibm.com> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: write counts for touch_atime()Dave Hansen
Remove handling of NULL mnt while we are at it - that can't happen these days. Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: elevate write count for ncp_ioctl()Dave Hansen
Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: elevate write count for xattr_permission() callersDave Hansen
This basically audits the callers of xattr_permission(), which calls permission() and can perform writes to the filesystem. [AV: add missing parts - removexattr() and nfsd posix acls, plug for a leak spotted by Miklos] Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: get write access for vfs_rename() callersDave Hansen
This also uses the little helper in the NFS code to make an if() a little bit less ugly. We introduced the helper at the beginning of the series. Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: write counts for link/symlinkDave Hansen
[AV: add missing nfsd pieces] Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: get callers of vfs_mknod/create/mkdir()Dave Hansen
This takes care of all of the direct callers of vfs_mknod(). Since a few of these cases also handle normal file creation as well, this also covers some calls to vfs_create(). So that we don't have to make three mnt_want/drop_write() calls inside of the switch statement, we move some of its logic outside of the switch and into a helper function suggested by Christoph. This also encapsulates a fix for mknod(S_IFREG) that Miklos found. [AV: merged mkdir handling, added missing nfsd pieces] Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: elevate write count for rmdir and unlink.Dave Hansen
Elevate the write count during the vfs_rmdir() and vfs_unlink(). [AV: merged rmdir and unlink parts, added missing pieces in nfsd] Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: drop write during emergency remountDave Hansen
The emergency remount code forcibly removes FMODE_WRITE from filps. The r/o bind mount code notices that this was done without a proper mnt_drop_write() and properly gives a warning. This patch does a mnt_drop_write() to keep everything balanced. Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: create helper to drop file write accessDave Hansen
If someone decides to demote a file from r/w to just r/o, they can use this same code as __fput(). NFS does just that, and will use this in the next patch. AV: drop write access in __fput() only after we evict from file list. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Cc: Erez Zadok <ezk@cs.sunysb.edu> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J Bruce Fields" <bfields@fieldses.org> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] r/o bind mounts: stub functionsDave Hansen
This patch adds two function mnt_want_write() and mnt_drop_write(). These are used like a lock pair around and fs operations that might cause a write to the filesystem. Before these can become useful, we must first cover each place in the VFS where writes are performed with a want/drop pair. When that is complete, we can actually introduce code that will safely check the counts before allowing r/w<->r/o transitions to occur. Acked-by: Serge Hallyn <serue@us.ibm.com> Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] merge open_namei() and do_filp_open()Christoph Hellwig
open_namei() will, in the future, need to take mount write counts over its creation and truncation (via may_open()) operations. It needs to keep these write counts until any potential filp that is created gets __fput()'d. This gets complicated in the error handling and becomes very murky as to how far open_namei() actually got, and whether or not that mount write count was taken. That makes it a bad interface. All that the current do_filp_open() really does is allocate the nameidata on the stack, then call open_namei(). So, this merges those two functions and moves filp_open() over to namei.c so it can be close to its buddy: do_filp_open(). It also gets a kerneldoc comment in the process. Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-19[PATCH] do namei_flags calculation inside open_namei()Dave Hansen
My end goal here is to make sure all users of may_open() return filps. This will ensure that we properly release mount write counts which were taken for the filp in may_open(). This patch moves the sys_open flags to namei flags calculation into fs/namei.c. We'll shortly be moving the nameidata_to_filp() calls into namei.c, and this gets the sys_open flags to a place where we can get at them when we need them. Acked-by: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2008-04-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/security-testing-2.6: security: fix up documentation for security_module_enable Security: Introduce security= boot parameter Audit: Final renamings and cleanup SELinux: use new audit hooks, remove redundant exports Audit: internally use the new LSM audit hooks LSM/Audit: Introduce generic Audit LSM hooks SELinux: remove redundant exports Netlink: Use generic LSM hook Audit: use new LSM hooks instead of SELinux exports SELinux: setup new inode/ipc getsecid hooks LSM: Introduce inode_getsecid and ipc_getsecid hooks
2008-04-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.26: (1090 commits) [NET]: Fix and allocate less memory for ->priv'less netdevices [IPV6]: Fix dangling references on error in fib6_add(). [NETLABEL]: Fix NULL deref in netlbl_unlabel_staticlist_gen() if ifindex not found [PKT_SCHED]: Fix datalen check in tcf_simp_init(). [INET]: Uninline the __inet_inherit_port call. [INET]: Drop the inet_inherit_port() call. SCTP: Initialize partial_bytes_acked to 0, when all of the data is acked. [netdrvr] forcedeth: internal simplifications; changelog removal phylib: factor out get_phy_id from within get_phy_device PHY: add BCM5464 support to broadcom PHY driver cxgb3: Fix __must_check warning with dev_dbg. tc35815: Statistics cleanup natsemi: fix MMIO for PPC 44x platforms [TIPC]: Cleanup of TIPC reference table code [TIPC]: Optimized initialization of TIPC reference table [TIPC]: Remove inlining of reference table locking routines e1000: convert uint16_t style integers to u16 ixgb: convert uint16_t style integers to u16 sb1000.c: make const arrays static sb1000.c: stop inlining largish static functions ...
2008-04-19security: fix up documentation for security_module_enableJames Morris
security_module_enable() can only be called during kernel init. Signed-off-by: James Morris <jmorris@namei.org>
2008-04-19Security: Introduce security= boot parameterAhmed S. Darwish
Add the security= boot parameter. This is done to avoid LSM registration clashes in case of more than one bult-in module. User can choose a security module to enable at boot. If no security= boot parameter is specified, only the first LSM asking for registration will be loaded. An invalid security module name will be treated as if no module has been chosen. LSM modules must check now if they are allowed to register by calling security_module_enable(ops) first. Modify SELinux and SMACK to do so. Do not let SMACK register smackfs if it was not chosen on boot. Smackfs assumes that smack hooks are registered and the initial task security setup (swapper->security) is done. Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: James Morris <jmorris@namei.org>
2008-04-19Audit: Final renamings and cleanupAhmed S. Darwish
Rename the se_str and se_rule audit fields elements to lsm_str and lsm_rule to avoid confusion. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: James Morris <jmorris@namei.org>
2008-04-19SELinux: use new audit hooks, remove redundant exportsAhmed S. Darwish
Setup the new Audit LSM hooks for SELinux. Remove the now redundant exported SELinux Audit interface. Audit: Export 'audit_krule' and 'audit_field' to the public since their internals are needed by the implementation of the new LSM hook 'audit_rule_known'. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: James Morris <jmorris@namei.org>
2008-04-19Audit: internally use the new LSM audit hooksAhmed S. Darwish
Convert Audit to use the new LSM Audit hooks instead of the exported SELinux interface. Basically, use: security_audit_rule_init secuirty_audit_rule_free security_audit_rule_known security_audit_rule_match instad of (respectively) : selinux_audit_rule_init selinux_audit_rule_free audit_rule_has_selinux selinux_audit_rule_match Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: James Morris <jmorris@namei.org>
2008-04-19LSM/Audit: Introduce generic Audit LSM hooksAhmed S. Darwish
Introduce a generic Audit interface for security modules by adding the following new LSM hooks: audit_rule_init(field, op, rulestr, lsmrule) audit_rule_known(krule) audit_rule_match(secid, field, op, rule, actx) audit_rule_free(rule) Those hooks are only available if CONFIG_AUDIT is enabled. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: James Morris <jmorris@namei.org> Reviewed-by: Paul Moore <paul.moore@hp.com>
2008-04-19SELinux: remove redundant exportsAhmed S. Darwish
Remove the following exported SELinux interfaces: selinux_get_inode_sid(inode, sid) selinux_get_ipc_sid(ipcp, sid) selinux_get_task_sid(tsk, sid) selinux_sid_to_string(sid, ctx, len) They can be substitued with the following generic equivalents respectively: new LSM hook, inode_getsecid(inode, secid) new LSM hook, ipc_getsecid*(ipcp, secid) LSM hook, task_getsecid(tsk, secid) LSM hook, sid_to_secctx(sid, ctx, len) Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: James Morris <jmorris@namei.org> Reviewed-by: Paul Moore <paul.moore@hp.com>
2008-04-19Netlink: Use generic LSM hookAhmed S. Darwish
Don't use SELinux exported selinux_get_task_sid symbol. Use the generic LSM equivalent instead. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: James Morris <jmorris@namei.org> Acked-by: David S. Miller <davem@davemloft.net> Reviewed-by: Paul Moore <paul.moore@hp.com>
2008-04-19Audit: use new LSM hooks instead of SELinux exportsAhmed S. Darwish
Stop using the following exported SELinux interfaces: selinux_get_inode_sid(inode, sid) selinux_get_ipc_sid(ipcp, sid) selinux_get_task_sid(tsk, sid) selinux_sid_to_string(sid, ctx, len) kfree(ctx) and use following generic LSM equivalents respectively: security_inode_getsecid(inode, secid) security_ipc_getsecid*(ipcp, secid) security_task_getsecid(tsk, secid) security_sid_to_secctx(sid, ctx, len) security_release_secctx(ctx, len) Call security_release_secctx only if security_secid_to_secctx succeeded. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: James Morris <jmorris@namei.org> Reviewed-by: Paul Moore <paul.moore@hp.com>
2008-04-19SELinux: setup new inode/ipc getsecid hooksAhmed S. Darwish
Setup the new inode_getsecid and ipc_getsecid() LSM hooks for SELinux. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: James Morris <jmorris@namei.org> Reviewed-by: Paul Moore <paul.moore@hp.com>
2008-04-19LSM: Introduce inode_getsecid and ipc_getsecid hooksAhmed S. Darwish
Introduce inode_getsecid(inode, secid) and ipc_getsecid(ipcp, secid) LSM hooks. These hooks will be used instead of similar exported SELinux interfaces. Let {inode,ipc,task}_getsecid hooks set the secid to 0 by default if CONFIG_SECURITY is not defined or if the hook is set to NULL (dummy). This is done to notify the caller that no valid secid exists. Signed-off-by: Casey Schaufler <casey@schaufler-ca.com> Signed-off-by: Ahmed S. Darwish <darwish.07@gmail.com> Acked-by: James Morris <jmorris@namei.org> Reviewed-by: Paul Moore <paul.moore@hp.com>
2008-04-18[NET]: Fix and allocate less memory for ->priv'less netdevicesAlexey Dobriyan
This patch effectively reverts commit d0498d9ae1a5cebac363e38907266d5cd2eedf89 aka "[NET]: Do not allocate unneeded memory for dev->priv alignment." It was found to be buggy because of final unconditional += NETDEV_ALIGN_CONST removal. For example, for sizeof(struct net_device) being 2048 bytes, "alloc_size" was also 2048 bytes, but allocator with debugging options turned on started giving out !32-byte aligned memory resulting in redzones overwrites. Patch does small optimization in ->priv'less case: bumping size to next 32-byte boundary was always done to ensure ->priv will also be aligned. But, no ->priv, no need to do that. Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2008-04-18x86 PAT: fix mmap() of holesIngo Molnar
do not return a -EINVAL when mmap()-ing PCI holes. Signed-off-by: Ingo Molnar <mingo@elte.hu> Acked-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Acked-by: Suresh Siddha <suresh.b.siddha@intel.com> Acked-by: H. Peter Anvin <hpa@zytor.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Arjan van de Ven <arjan@linux.intel.com>
2008-04-18Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (137 commits) [SCSI] iscsi: bidi support for iscsi_tcp [SCSI] iscsi: bidi support at the generic libiscsi level [SCSI] iscsi: extended cdb support [SCSI] zfcp: Fix error handling for blocked unit for send FCP command [SCSI] zfcp: Remove zfcp_erp_wait from slave destory handler to fix deadlock [SCSI] zfcp: fix 31 bit compile warnings [SCSI] bsg: no need to set BSG_F_BLOCK bit in bsg_complete_all_commands [SCSI] bsg: remove minor in struct bsg_device [SCSI] bsg: use better helper list functions [SCSI] bsg: replace kobject_get with blk_get_queue [SCSI] bsg: takes a ref to struct device in fops->open [SCSI] qla1280: remove version check [SCSI] libsas: fix endianness bug in sas_ata [SCSI] zfcp: fix compiler warning caused by poking inside new semaphore (linux-next) [SCSI] aacraid: Do not describe check_reset parameter with its value [SCSI] aacraid: Fix down_interruptible() to check the return value [SCSI] sun3_scsi_vme: add MODULE_LICENSE [SCSI] st: rename flush_write_buffer() [SCSI] tgt: use KMEM_CACHE macro [SCSI] initio: fix big endian problems for auto request sense ...
2008-04-18Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (43 commits) firewire: cleanups firewire: fix synchronization of gap counts firewire: wait until PHY configuration packet was transmitted (fix bus reset loop) firewire: remove unused struct member firewire: use bitwise and to get reg in handle_registers firewire: replace more hex values with defined csr constants firewire: reread config ROM when device reset the bus firewire: replace static ROM cache by allocated cache firewire: fw-ohci: work around generation bug in TI controllers (fix AV/C and more) firewire: fw-ohci: extend logging of bus generations and node ID firewire: fw-ohci: conditionally log busReset interrupts firewire: fw-ohci: don't append to AT context when it's not active firewire: fw-ohci: log regAccessFail events firewire: fw-ohci: make sure HCControl register LPS bit is set firewire: fw-ohci: missing PPC PMac feature calls in failure path firewire: fw-ohci: untangle a mixed unsigned/signed expression firewire: debug interrupt events firewire: fw-ohci: catch self_id_count == 0 firewire: fw-ohci: add self ID error check firewire: fw-ohci: refactor probe, remove, suspend, resume ...
2008-04-18libata: fix boot panic with SATAPI devices on non-SFF HBAsJames Bottomley
The kernel now panics reliably on boot if you have a SATAPI device connected. The problem was introduced by the libata merge trying to pull out all the SFF code into a separate module. Unfortunately, if you're a satapi device you usually need to call atapi_request_sense, which has a bare invocation of a SFF callback which is NULL on non-SFF HBAs. Fix this by making the call conditional. Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-18Merge branch 'upstream-linus' of ↵Linus Torvalds
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: (64 commits) ocfs2/net: Add debug interface to o2net ocfs2: Only build ocfs2/dlm with the o2cb stack module ocfs2/cluster: Get rid of arguments to the timeout routines ocfs2: Put tree in MAINTAINERS ocfs2: Use BUG_ON ocfs2: Convert ocfs2 over to unlocked_ioctl ocfs2: Improve rename locking fs/ocfs2/aops.c: test for IS_ERR rather than 0 ocfs2: Add inode stealing for ocfs2_reserve_new_inode ocfs2: Add ac_alloc_slot in ocfs2_alloc_context ocfs2: Add a new parameter for ocfs2_reserve_suballoc_bits ocfs2: Enable cross extent block merge. ocfs2: Add support for cross extent block ocfs2: Move /sys/o2cb to /sys/fs/o2cb sysfs: Allow removal of symlinks in the sysfs root ocfs2: Reconnect after idle time out. ocfs2/dlm: Cleanup lockres print ocfs2/dlm: Fix lockname in lockres print function ocfs2/dlm: Move dlm_print_one_mle() from dlmmaster.c to dlmdebug.c ocfs2/dlm: Dumps the purgelist into a debugfs file ...
2008-04-18Merge 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: (49 commits) [GFS2] fix assertion in log_refund() [GFS2] fix GFP_KERNEL misuses [GFS2] test for IS_ERR rather than 0 [GFS2] Invalidate cache at correct point [GFS2] fs/gfs2/recovery.c: suppress warnings [GFS2] Faster gfs2_bitfit algorithm [GFS2] Streamline quota lock/check for no-quota case [GFS2] Remove drop of module ref where not needed [GFS2] gfs2_adjust_quota has broken unstuffing code [GFS2] possible null pointer dereference fixup [GFS2] Need to ensure that sector_t is 64bits for GFS2 [GFS2] re-support special inode [GFS2] remove gfs2_dev_iops [GFS2] fix file_system_type leak on gfs2meta mount [GFS2] Allow bmap to allocate extents [GFS2] Fix a page lock / glock deadlock [GFS2] proper extern for gfs2/locking/dlm/mount.c:gdlm_ops [GFS2] gfs2/ops_file.c should #include "ops_inode.h" [GFS2] be*_add_cpu conversion [GFS2] Fix bug where we called drop_bh incorrectly ...
2008-04-18x86: kgdb build fixHarvey Harrison
TF_MASK is no longer defined, use X86_EFLAGS_TF. Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-18[SCSI] iscsi: bidi support for iscsi_tcpBoaz Harrosh
access the right scsi_in() and/or scsi_out() side of things. also for resid Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Reviewed-by: Pete Wyckoff <pw@osc.edu> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-18[SCSI] iscsi: bidi support at the generic libiscsi levelBoaz Harrosh
- prepare the additional bidi_read rlength header. - access the right scsi_in() and/or scsi_out() side of things. also for resid. - Handle BIDI underflow overflow from target Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Reviewed-by: Pete Wyckoff <pw@osc.edu> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-18[SCSI] iscsi: extended cdb supportBoaz Harrosh
Support for extended CDBs in iscsi. All we need is to check if command spills over 16 bytes then allocate an iscsi-extended-header for the leftovers. Signed-off-by: Boaz Harrosh <bharrosh@panasas.com> Reviewed-by: Pete Wyckoff <pw@osc.edu> Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-18[SCSI] zfcp: Fix error handling for blocked unit for send FCP commandChristof Schmitt
In the case the unit is blocked, zfcp_unit_get has not been called yet, so the error handling path should not call zfcp_unit_put. Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-18[SCSI] zfcp: Remove zfcp_erp_wait from slave destory handler to fix deadlockChristof Schmitt
The testcase # chchp -v 0 0.da && sleep 59 && chchp -v 1 0.da results in this deadlock situation: STACK TRACE FOR TASK: 0x7e9a2048 (zfcperp0.0.c613) 0 schedule+816 [0x356b3c] 1 schedule_timeout+172 [0x357340] 2 wait_for_common+192 [0x3565fc] 3 flush_cpu_workqueue+116 [0x52af0] 4 flush_workqueue+116 [0x533b8] 5 fc_remote_port_add+64 [0x1c83ec] 6 zfcp_erp_thread+4534 [0x26585a] 7 kernel_thread_starter+6 [0x195d2] STACK TRACE FOR TASK: 0x7f8ec048 (fc_wq_0) 0 schedule+816 [0x356b3c] 1 zfcp_erp_wait+104 [0x264568] 2 zfcp_scsi_slave_destroy+64 [0x261b24] 3 __scsi_remove_device+154 [0x1c24ba] 4 scsi_remove_device+62 [0x1c2512] 5 __scsi_remove_target+198 [0x1c25ea] 6 __remove_child+58 [0x1c26d6] 7 device_for_each_child+66 [0x1ab566] 8 scsi_remove_target+98 [0x1c268a] 9 run_workqueue+200 [0x5272c] 10 worker_thread+146 [0x52882] 11 kthread+140 [0x58360] 12 kernel_thread_starter+6 [0x195d2] Remove the zfcp_erp_wait call that is not required here to prevent the deadlock situation. Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-18[SCSI] zfcp: fix 31 bit compile warningsMartin Peschke
drivers/s390/scsi/zfcp_aux.c: In function ‘zfcp_fsf_incoming_els_rscn’: drivers/s390/scsi/zfcp_aux.c:1379: warning: cast from pointer to integer of different size drivers/s390/scsi/zfcp_aux.c: In function ‘zfcp_fsf_incoming_els_plogi’: drivers/s390/scsi/zfcp_aux.c:1432: warning: cast from pointer to integer of different size drivers/s390/scsi/zfcp_aux.c: In function ‘zfcp_fsf_incoming_els_logo’: drivers/s390/scsi/zfcp_aux.c:1457: warning: cast from pointer to integer of different size .. Just passing pointers rids us of these warnings and improves readability. Signed-off-by: Martin Peschke <mp3@de.ibm.com> Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-18[SCSI] bsg: no need to set BSG_F_BLOCK bit in bsg_complete_all_commandsFUJITA Tomonori
Before bsg_complete_all_commands is called, BSG_F_BLOCK bit is always set. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-18[SCSI] bsg: remove minor in struct bsg_deviceFUJITA Tomonori
minor in struct bsg_device is used as identifier to find the corresponding struct bsg_device_class. However, request_queuse can be used as identifier for that and the minor in struct bsg_device is unnecessary. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-18[SCSI] bsg: use better helper list functionsFUJITA Tomonori
This replace hlist_for_each and list_entry with hlist_for_each_entry and list_first_entry respectively. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-18[SCSI] bsg: replace kobject_get with blk_get_queueFUJITA Tomonori
Both takes a ref to a queue. But blk_get_queue checks QUEUE_FLAG_DEAD and is more appropriate interface here. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
2008-04-18[SCSI] bsg: takes a ref to struct device in fops->openFUJITA Tomonori
bsg_register_queue() takes a ref to struct device that a caller passes. For example, bsg takes a ref to the sdev_gendev for scsi devices. However, bsg doesn't inrease the refcount in fops->open. So while an application opens a bsg device, the scsi device that the bsg device holds can go away (bsg also takes a ref to a queue, but it doesn't prevent the device from going away). With this patch, bsg increases the refcount of struct device in fops->open and decreases it in fops->release. Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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