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* orangefs: fix orangefs_superblock lockingAl Viro2016-03-263-58/+47
| | | | | | | | | | | | | | | * switch orangefs_remount() to taking ORANGEFS_SB(sb) instead of sb * remove from the list _before_ orangefs_unmount() - request_mutex in the latter will make sure that nothing observed in the loop in ORANGEFS_DEV_REMOUNT_ALL handling will get freed until the end of loop * on removal, keep the forward pointer and zero the back one. That way we can drop and regain the spinlock in the loop body (again, ORANGEFS_DEV_REMOUNT_ALL one) and still be able to get to the rest of the list. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: fix do_readv_writev() handling of error halfway throughAl Viro2016-03-251-1/+1
| | | | | | | | Error should only be returned if nothing had been read/written. Otherwise we need to report a short read/write instead. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: have ->kill_sb() evict the VFS side of things firstAl Viro2016-03-251-3/+3
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: sanitize ->llseek()Al Viro2016-03-252-10/+3
| | | | | | | | | a) open files can't have NULL inodes b) it's SEEK_END, not ORANGEFS_SEEK_END; no need to get cute. c) make_bad_inode() on lseek()? Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs-bufmap.h: trim unused junkAl Viro2016-03-251-9/+0
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: saner calling conventions for getting a slotAl Viro2016-03-254-28/+16
| | | | | | | | just have it return the slot number or -E... - the caller checks the sign anyway Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs_copy_{to,from}_bufmap(): don't pass bufmap pointerAl Viro2016-03-253-23/+14
| | | | | | | it's always __orangefs_bufmap Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: get rid of readdir_handle_sAl Viro2016-03-251-63/+30
| | | | | | | | no point, really - we couldn't keep those across the calls of getdents(); it would be too easy to DoS, having all slots exhausted. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* ornagefs: ensure that truncate has an up to date inode sizeMartin Brandenburg2016-03-231-1/+12
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: move code which sets i_link to orangefs_inode_getattrMartin Brandenburg2016-03-232-2/+1
| | | | | | | Everything else setting inode->i_ values is in there. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: remove needless wrapper around GFP_KERNELMartin Brandenburg2016-03-232-5/+1
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: remove wrapper around mutex_lock(&inode->i_mutex)Martin Brandenburg2016-03-231-6/+2
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: refactor inode type or link_target change detectionMartin Brandenburg2016-03-231-41/+36
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: use new getattr for revalidate and remove old getattrMartin Brandenburg2016-03-233-325/+49
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: use new getattr in inode getattr and permissionMartin Brandenburg2016-03-231-12/+2
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: use new orangefs_inode_getattr to get size in write and llseekMartin Brandenburg2016-03-231-6/+8
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: use new orangefs_inode_getattr to create new inodesMartin Brandenburg2016-03-231-4/+2
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: rename orangefs_inode_getattr to orangefs_inode_old_getattrMartin Brandenburg2016-03-235-10/+133
| | | | | | | | This is motivated by orangefs_inode_old_getattr's habit of writing over live inodes. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: remove inode->i_lock wrapperMartin Brandenburg2016-03-232-7/+4
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: put register_chrdev immediately before register_filesystemMartin Brandenburg2016-03-171-13/+13
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: remove paranoia in orangefs_set_inodeMartin Brandenburg2016-03-171-10/+2
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: sanitize listxattr and return EIO on impossible valuesMartin Brandenburg2016-03-171-0/+10
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: remove unused reference to xattr key lengthMartin Brandenburg2016-03-171-5/+0
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: adjust unwind on module init failure.Mike Marshall2016-03-171-4/+3
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: fix sloppy cleanups of debugfs and sysfs init failures.Mike Marshall2016-03-143-62/+76
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: follow_link -> get_link changeMike Marshall2016-03-142-19/+4
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: Extra sanity insurance on buffer before using string functions on it.Mike Marshall2016-03-141-0/+13
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: make fs_mount_pending staticMartin Brandenburg2016-03-092-39/+38
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: Avoid symlink upcall if target is too long.Martin Brandenburg2016-03-091-0/+3
| | | | | | | | | | | | Previously the client-core detected this condition by sheer luck! Since we used strncpy, no NUL byte would be included on the name. The client-core would call strlen, which would read past the end of its buffer, but return a number large enough that the client-core would return ENAMETOOLONG. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: improve the POSIXness of interrupted writes...Mike Marshall2016-03-091-9/+45
| | | | | | | Don't return EINTR on interrupted writes if some data has already been written. Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: add a new gossip statementMike Marshall2016-03-091-0/+4
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: improve gossip statementsMike Marshall2016-03-034-21/+49
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: update orangefs.txtMike Marshall2016-02-261-2/+2
| | | | | | | | Al Viro has cleaned up the way ops are processed and waited for, now orangefs.txt has an overview of how it works. Several recent related commits have added to the comments in the code as well. Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: code sanitation.Mike Marshall2016-02-263-29/+46
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: remove unused 'diff' functionArnd Bergmann2016-02-261-11/+0
| | | | | | | | | | orangefs contains a helper function to calculate the difference between two timeval structures. We are trying to remove all instances of timespec from the kernel, and this one is not used at all, so let's remove it now. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: avoid time conversion functionArnd Bergmann2016-02-262-12/+5
| | | | | | | | | | | | | | | | The new orangefs code uses a helper function to read a time field to its private structures from struct iattr. This will conflict with the move to 64-bit timestamps in the kernel and is generally not necessary. This replaces the conversion with a simple cast to time64_t that shows what is going on. As the orangefs-internal representation already uses 64-bit timestamps, there should be no ambiguity to negative values, and the cast ensures that we treat them as times before 1970 on both 32-bit and 64-bit architectures, rather than times after 2038. This patch keeps that behavior. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: clean up fill_default_sys_attrsMartin Brandenburg2016-02-241-2/+3
| | | | | | | | | | | Size and type are read-only and not in the mask. The times were left unset despite being in the mask. We zero-fill the times since the server will fill them in and we will get the correct time when we fill the inode with getattr. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: we never lookup with sym_follow setMartin Brandenburg2016-02-242-5/+2
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: remove vestigial async io codeMartin Brandenburg2016-02-243-11/+2
| | | | | | | | I have verified that there is nothing in the userspace daemon version we are implementing this protocol against that ever looks at this field. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: use ORANGEFS_NAME_LEN everywhere; remove ORANGEFS_NAME_MAXMartin Brandenburg2016-02-246-21/+20
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: don't d_drop in d_revalidate since the caller willMartin Brandenburg2016-02-241-8/+2
| | | | | Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: free readdir buffer index before the dir_emit loopMartin Brandenburg2016-02-241-25/+9
| | | | | | | | | | | | We only need it while the service operation is actually in progress since it is only used to co-ordinate the client-core's memory use. The kernel allocates its own space. Also clean up some comments which mislead the reader into thinking the readdir buffers are shared memory. Signed-off-by: Martin Brandenburg <martin@omnibond.com> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: code sanitationMike Marshall2016-02-244-14/+29
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: clean up orangefs_kernel_op_s comments.Mike Marshall2016-02-241-7/+6
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: get rid of op refcountsAl Viro2016-02-192-22/+2
| | | | | | | not needed anymore Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: have ..._clean_interrupted_...() wait for copy to/from daemonAl Viro2016-02-193-23/+21
| | | | | | | | | | | | | | | | | | * turn all those list_del(&op->list) into list_del_init() * don't pick ops that are already given up in control device ->read()/->write_iter(). * have orangefs_clean_interrupted_operation() notice if op is currently being copied to/from daemon (by said ->read()/->write_iter()) and wait for that to finish. * when we are done copying to/from daemon and find that it had been given up while we were doing that, wake the waiting ..._clean_interrupted_... As the result, we are guaranteed that orangefs_clean_interrupted_operation(op) doesn't return until nobody else can see op. Moreover, we don't need to play with op refcounts anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: set correct ->downcall.status on failing to copy reply from daemonAl Viro2016-02-191-39/+22
| | | | | | | ... and clean the end of control device ->write_iter() while we are at it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: remove vestigial ASYNC codeMike Marshall2016-02-191-7/+0
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* Orangefs: make some gossip statements more helpful.Mike Marshall2016-02-193-21/+41
| | | | Signed-off-by: Mike Marshall <hubcap@omnibond.com>
* orangefs: get rid of op->doneAl Viro2016-02-194-21/+2
| | | | | | | shouldn't be needed now Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Mike Marshall <hubcap@omnibond.com>
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