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* License cleanup: add SPDX GPL-2.0 license identifier to files with no licenseGreg Kroah-Hartman2017-11-021-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* wrappers for ->i_mutex accessAl Viro2016-01-221-6/+6
| | | | | | | | | | | parallel to mutex_{lock,unlock,trylock,is_locked,lock_nested}, inode_foo(inode) being mutex_foo(&inode->i_mutex). Please, use those for access to ->i_mutex; over the coming cycle ->i_mutex will become rwsem, with ->lookup() done with it held only shared. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ocfs2: clean up redundant NULL check before iputJoseph Qi2016-01-141-3/+1
| | | | | | | | | | | Since iput will take care the NULL check itself, NULL check before calling it is redundant. So clean them up. Signed-off-by: Joseph Qi <joseph.qi@huawei.com> Cc: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ioctl_compat: handle FITRIMMikulas Patocka2015-07-091-1/+0
| | | | | | | | | | | The FITRIM ioctl has the same arguments on 32-bit and 64-bit architectures, so we can add it to the list of compatible ioctls and drop it from compat_ioctl method of various filesystems. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Ted Ts'o <tytso@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: do not write error flag to user structure we cannot copy from/toBen Hutchings2014-08-291-86/+43
| | | | | | | | | | | | | | | | | | If we failed to copy from the structure, writing back the flags leaks 31 bits of kernel memory (the rest of the ir_flags field). In any case, if we cannot copy from/to the structure, why should we expect putting just the flags to work? Also make sure ocfs2_info_handle_freeinode() returns the right error code if the copy_to_user() fails. Fixes: ddee5cdb70e6 ('Ocfs2: Add new OCFS2_IOC_INFO ioctl for ocfs2 v8.') Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Cc: Joel Becker <jlbec@evilplan.org> Acked-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* fs/ocfs2/ioctl.c: add static to local functionsFabian Frederick2014-06-041-40/+41
| | | | | | | | | | ocfs_info_foo() and ocfs2_get_request_ptr functions are only used in ioctl.c Signed-off-by: Fabian Frederick <fabf@skynet.be> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: iput inode alloc when failed locallyjiangyiwen2014-04-031-2/+3
| | | | | | | | | | | | | | In ocfs2_info_handle_freeinode() and ocfs2_test_inode_bit() func, after calls ocfs2_get_system_file_inode() to get inode ref, if calls ocfs2_info_scan_inode_alloc() or ocfs2_inode_lock() failed, we should iput inode alloc to avoid leaking the inode. Signed-off-by: jiangyiwen <jiangyiwen@huawei.com> Reviewed-by: Joseph Qi <joseph.qi@huawei.com> Cc: Mark Fasheh <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: adjust minlen with discard_granularity in the FITRIM ioctlJie Liu2014-01-211-0/+2
| | | | | | | | | | | | | | | | Adjust minlen with discard_granularity for FITRIM ioctl(2) if the given minimum size in bytes is less than it because, discard granularity is used to tell us that the minimum size of extent that can be discarded by the storage device. This is inspired by ext4 commit 5c2ed62fd447 ("ext4: Adjust minlen with discard_granularity in the FITRIM ioctl") from Lukas Czerner. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: return EOPNOTSUPP if the device does not support discardJie Liu2014-01-211-0/+5
| | | | | | | | | | | | | For FITRIM ioctl(2), we should return EOPNOTSUPP to inform the user that the storage device does not support discard if it is, otherwise return success would confuse the user even though there is no free blocks were trimmed at all. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: use i_size_read() to access i_sizeJunxiao Bi2013-09-111-1/+1
| | | | | | | | | | | | | Though ocfs2 uses inode->i_mutex to protect i_size, there are both i_size_read/write() and direct accesses. Clean up all direct access to eliminate confusion. Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com> Cc: Jie Liu <jeff.liu@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: fix error return code in ocfs2_info_handle_freefrag()Wei Yongjun2013-04-291-1/+3
| | | | | | | | | | | Fix to return a negative error code from the error handling case instead of 0, as returned elsewhere in this function. Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn> Cc: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: delay inode update transactions after verifying the input flagsJeff Liu2013-04-291-9/+9
| | | | | | | | | | | | | There is no need to start the inode update transactions before/while verifying the input flags. As a refinement, this patch delay the transactions utill the pre-check up is ok. Signed-off-by: Jie Liu <jeff.liu@oracle.com> Acked-by: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* new helper: file_inode(file)Al Viro2013-02-221-2/+2
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ocfs2: Convert to new freezing mechanismJan Kara2012-07-311-2/+12
| | | | | | | | | | | | | | Protect ocfs2_page_mkwrite() and ocfs2_file_aio_write() using the new freeze protection. We also protect several ioctl entry points which were missing the protection. Finally, we add freeze protection to the journaling mechanism so that iput() of unlinked inode cannot modify a frozen filesystem. CC: Mark Fasheh <mfasheh@suse.com> CC: Joel Becker <jlbec@evilplan.org> CC: ocfs2-devel@oss.oracle.com Acked-by: Joel Becker <jlbec@evilplan.org> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ocfs2: deal with __user misannotationsAl Viro2012-05-291-17/+14
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* get rid of pointless includes of ext2_fs.hAl Viro2012-03-311-2/+0
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: mnt_drop_write_file()Al Viro2012-01-031-1/+1
| | | | | | | new helper (wrapper around mnt_drop_write()) to be used in pair with mnt_want_write_file(). Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch a bunch of places to mnt_want_write_file()Al Viro2012-01-031-1/+1
| | | | | | it's both faster (in case when file has been opened for write) and cleaner. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ocfs2: Commit transactions in error cases -v2Wengang Wang2011-11-171-1/+2
| | | | | | | | | | There are three cases found that in error cases, journal transactions are not committed nor aborted. We should take care of these case by committing the transactions. Otherwise, there would left a journal handle which will lead to , in same process context, the comming ocfs2_start_trans() gets wrong credits. Signed-off-by: Wengang Wang <wen.gang.wang@oracle.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
* ocfs2: null deref on allocation errorDan Carpenter2011-05-311-4/+4
| | | | | | | The original code had a null derefence in the error handling. Signed-off-by: Dan Carpenter <error27@gmail.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
* Merge branch 'move_extents' of git://oss.oracle.com/git/tye/linux-2.6 into ↵Joel Becker2011-05-251-27/+441
|\ | | | | | | | | | | | | ocfs2-merge-window Conflicts: fs/ocfs2/ioctl.c
| * Ocfs2/move_extents: move/defrag extents within a certain range.Tristan Ye2011-05-251-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | the basic logic of moving extents for a file is pretty like punching-hole sequence, walk the extents within the range as user specified, calculating an appropriate len to defrag/move, then let ocfs2_defrag/move_extent() to do the actual moving. This func ends up setting 'OCFS2_MOVE_EXT_FL_COMPLETE' to userpace if operation gets done successfully. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| * Ocfs2: Add a new code 'OCFS2_INFO_FREEFRAG' for o2info ioctl.Tristan Ye2011-05-251-0/+290
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This new code is a bit more complicated than former ones, the goal is to show user all statistics required to take a deep insight into filesystem on how the disk is being fragmentaed. The goal is achieved by scaning global bitmap from (cluster)group to group to figure out following factors in the filesystem: - How many free chunks in a fixed size as user requested. - How many real free chunks in all size. - Min/Max/Avg size(in) clusters of free chunks. - How do free chunks distribute(in size) in terms of a histogram, just like following: --------------------------------------------------------- Extent Size Range : Free extents Free Clusters Percent 32K... 64K- : 1 1 0.00% 1M... 2M- : 9 288 0.03% 8M... 16M- : 2 831 0.09% 32M... 64M- : 1 2047 0.23% 128M... 256M- : 1 8191 0.92% 256M... 512M- : 2 21706 2.43% 512M... 1024M- : 27 858623 96.29% --------------------------------------------------------- Userspace ioctl() call eventually gets the above info returned by passing a 'struct ocfs2_info_freefrag' with the chunk_size being specified first. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| * Ocfs2: Add a new code 'OCFS2_INFO_FREEINODE' for o2info ioctl.Tristan Ye2011-05-251-0/+128
| | | | | | | | | | | | | | | | | | | | | | | | The new code is dedicated to calculate free inodes number of all inode_allocs, then return the info to userpace in terms of an array. Specially, flag 'OCFS2_INFO_FL_NON_COHERENT', manipulated by '--cluster-coherent' from userspace, is now going to be involved. setting the flag on means no cluster coherency considered, usually, userspace tools choose none-coherency strategy by default for the sake of performace. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| * Ocfs2: Using inline funcs to set/clear *FILLED* flags in info handler.Tristan Ye2011-05-251-28/+19
| | | | | | | | | | | | It just removes some macros for the sake of typechecking gains. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
* | ocfs2: Add FITRIM ioctl.Tao Ma2011-05-231-0/+24
|/ | | | | | | Add the corresponding ioctl function for FITRIM. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2011-03-281-11/+30
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (39 commits) Treat writes as new when holes span across page boundaries fs,ocfs2: Move o2net_get_func_run_time under CONFIG_OCFS2_FS_STATS. ocfs2/dlm: Move kmalloc() outside the spinlock ocfs2: Make the left masklogs compat. ocfs2: Remove masklog ML_AIO. ocfs2: Remove masklog ML_UPTODATE. ocfs2: Remove masklog ML_BH_IO. ocfs2: Remove masklog ML_JOURNAL. ocfs2: Remove masklog ML_EXPORT. ocfs2: Remove masklog ML_DCACHE. ocfs2: Remove masklog ML_NAMEI. ocfs2: Remove mlog(0) from fs/ocfs2/dir.c ocfs2: remove NAMEI from symlink.c ocfs2: Remove masklog ML_QUOTA. ocfs2: Remove mlog(0) from quota_local.c. ocfs2: Remove masklog ML_RESERVATIONS. ocfs2: Remove masklog ML_XATTR. ocfs2: Remove masklog ML_SUPER. ocfs2: Remove mlog(0) from fs/ocfs2/heartbeat.c ocfs2: Remove mlog(0) from fs/ocfs2/slot_map.c ... Fix up trivial conflict in fs/ocfs2/super.c
| * Merge branch 'mlog_replace_for_39' of git://repo.or.cz/taoma-kernel into ↵Joel Becker2011-03-281-3/+0
| |\ | | | | | | | | | ocfs2-merge-window-fix
| | * ocfs2: remove INODE from unused files.Tao Ma2011-02-211-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | As there are no such debug information in fs/ocfs2/ioctl.c, fs/ocfs2/locks.c and fs/ocfs2/sysfile.c, ML_INODE are also removed. Signed-off-by: Tao Ma <boyu.mt@taobao.com>
| | * ocfs2: Remove EXIT from masklog.Tao Ma2011-03-071-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | mlog_exit is used to record the exit status of a function. But because it is added in so many functions, if we enable it, the system logs get filled up quickly and cause too much I/O. So actually no one can open it for a production system or even for a test. This patch just try to remove it or change it. So: 1. if all the error paths already use mlog_errno, it is just removed. Otherwise, it will be replaced by mlog_errno. 2. if it is used to print some return value, it is replaced with mlog(0,...). mlog_exit_ptr is changed to mlog(0. All those mlog(0,...) will be replaced with trace events later. Signed-off-by: Tao Ma <boyu.mt@taobao.com>
| * | Ocfs2: Using macro to set/clear *FILLED* flags in info handler.Tristan Ye2011-02-201-8/+30
| |/ | | | | | | | | | | | | It's a best-effort attempt to simplize duplicated codes here. Signed-off-by: Tristan Ye <tristan.ye@oracle.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
* | userns: rename is_owner_or_cap to inode_owner_or_capableSerge E. Hallyn2011-03-231-1/+1
|/ | | | | | | | | | | | | And give it a kernel-doc comment. [akpm@linux-foundation.org: btrfs changed in linux-next] Signed-off-by: Serge E. Hallyn <serge.hallyn@canonical.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Daniel Lezcano <daniel.lezcano@free.fr> Acked-by: David Howells <dhowells@redhat.com> Cc: James Morris <jmorris@namei.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Ocfs2: Add new OCFS2_IOC_INFO ioctl for ocfs2 v8.Tristan Ye2010-09-101-0/+356
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The reason why we need this ioctl is to offer the none-privileged end-user a possibility to get filesys info gathering. We use OCFS2_IOC_INFO to manipulate the new ioctl, userspace passes a structure to kernel containing an array of request pointers and request count, such as, * From userspace: struct ocfs2_info_blocksize oib = { .ib_req = { .ir_magic = OCFS2_INFO_MAGIC, .ir_code = OCFS2_INFO_BLOCKSIZE, ... } ... } struct ocfs2_info_clustersize oic = { ... } uint64_t reqs[2] = {(unsigned long)&oib, (unsigned long)&oic}; struct ocfs2_info info = { .oi_requests = reqs, .oi_count = 2, } ret = ioctl(fd, OCFS2_IOC_INFO, &info); * In kernel: Get the request pointers from *info*, then handle each request one bye one. Idea here is to make the spearated request small enough to guarantee a better backward&forward compatibility since a small piece of request would be less likely to be broken if filesys on raw disk get changed. Currently, the following 7 requests are supported per the requirement from userspace tool o2info, and I believe it will grow over time:-) OCFS2_INFO_CLUSTERSIZE OCFS2_INFO_BLOCKSIZE OCFS2_INFO_MAXSLOTS OCFS2_INFO_LABEL OCFS2_INFO_UUID OCFS2_INFO_FS_FEATURES OCFS2_INFO_JOURNAL_SIZE This ioctl is only specific to OCFS2. Signed-off-by: Tristan Ye <tristan.ye@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* ocfs2: Use compat_ptr in reflink_arguments.Tao Ma2010-02-021-1/+13
| | | | | | | | | | | | | | | | | Although we use u64 to pass userspace pointers to the kernel to avoid compat_ioctl, it doesn't work in some ppc platform. So wrap them with compat_ptr and add compat_ioctl. The detailed discussion about compat_ptr can be found in thread http://lkml.org/lkml/2009/10/27/423. We indeed met with a bug when testing on ppc(-EFAULT is returned when using old_path). This patch try to fix this. I have tested in ppc64(with 32 bit reflink) and x86_64(with i686 reflink), both works. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2009-09-231-0/+14
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (85 commits) ocfs2: Use buffer IO if we are appending a file. ocfs2: add spinlock protection when dealing with lockres->purge. dlmglue.c: add missed mlog lines ocfs2: __ocfs2_abort() should not enable panic for local mounts ocfs2: Add ioctl for reflink. ocfs2: Enable refcount tree support. ocfs2: Implement ocfs2_reflink. ocfs2: Add preserve to reflink. ocfs2: Create reflinked file in orphan dir. ocfs2: Use proper parameter for some inode operation. ocfs2: Make transaction extend more efficient. ocfs2: Don't merge in 1st refcount ops of reflink. ocfs2: Modify removing xattr process for refcount. ocfs2: Add reflink support for xattr. ocfs2: Create an xattr indexed block if needed. ocfs2: Call refcount tree remove process properly. ocfs2: Attach xattr clusters to refcount tree. ocfs2: Abstract ocfs2 xattr tree extend rec iteration process. ocfs2: Abstract the creation of xattr block. ocfs2: Remove inode from ocfs2_xattr_bucket_get_name_value. ...
| * ocfs2: Add ioctl for reflink.Tao Ma2009-09-221-0/+14
| | | | | | | | | | | | | | | | The ioctl will take 3 parameters: old_path, new_path and preserve and call vfs_reflink. It is useful when we backport reflink features to old kernels. Signed-off-by: Tao Ma <tao.ma@oracle.com>
* | headers: smp_lock.h reduxAlexey Dobriyan2009-07-121-1/+0
|/ | | | | | | | | | | | | * Remove smp_lock.h from files which don't need it (including some headers!) * Add smp_lock.h to files which do need it * Make smp_lock.h include conditional in hardirq.h It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT This will make hardirq.h inclusion cheaper for every PREEMPT=n config (which includes allmodconfig/allyesconfig, BTW) Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: Don't check for NULL before brelse()Mark Fasheh2008-10-131-2/+1
| | | | | | This is pointless as brelse() already does the check. Signed-off-by: Mark Fasheh
* [PATCH] r/o bind mounts: elevate write count for ioctls()Dave Hansen2008-04-191-5/+6
| | | | | | | | | | | | | 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>
* ocfs2: Convert ocfs2 over to unlocked_ioctlAndi Kleen2008-04-181-9/+3
| | | | | | | | As far as I can see there is nothing in ocfs2_ioctl that requires the BKL, so use unlocked_ioctl Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: Move o2hb functionality into the stack glue.Joel Becker2008-04-181-0/+1
| | | | | | | | | | | | | | | | | The last bit of classic stack used directly in ocfs2 code is o2hb. Specifically, the check for heartbeat during mount and the call to ocfs2_hb_ctl during unmount. We create an extra API, ocfs2_cluster_hangup(), to encapsulate the call to ocfs2_hb_ctl. Other stacks will just leave hangup() empty. The check for heartbeat is moved into ocfs2_cluster_connect(). It will be matched by a similar check for other stacks. With this change, only stackglue.c includes cluster/ headers. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.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>
* [PATCH 2/2] ocfs2: Implement group add for online resizeTao Ma2008-01-251-0/+9
| | | | | | | | | | | | | | | | This patch adds the ability for a userspace program to request that a properly formatted cluster group be added to the main allocation bitmap for an Ocfs2 file system. The request is made via an ioctl, OCFS2_IOC_GROUP_ADD. On a high level, this is similar to ext3, but we use a different ioctl as the structure which has to be passed through is different. During an online resize, tunefs.ocfs2 will format any new cluster groups which must be added to complete the resize, and call OCFS2_IOC_GROUP_ADD on each one. Kernel verifies that the core cluster group information is valid and then does the work of linking it into the global allocation bitmap. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH 1/2] ocfs2: Add group extend for online resizeTao Ma2008-01-251-0/+8
| | | | | | | | | | | | | This patch adds the ability for a userspace program to request an extend of last cluster group on an Ocfs2 file system. The request is made via ioctl, OCFS2_IOC_GROUP_EXTEND. This is derived from EXT3_IOC_GROUP_EXTEND, but is obviously Ocfs2 specific. tunefs.ocfs2 would call this for an online-resize operation if the last cluster group isn't full. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: Rename ocfs2_meta_[un]lockMark Fasheh2008-01-251-4/+4
| | | | | | | Call this the "inode_lock" now, since it covers both data and meta data. This patch makes no functional changes. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid checkSatyam Sharma2007-07-171-1/+1
| | | | | | | | | | | | | | | | | | | | Introduce is_owner_or_cap() macro in fs.h, and convert over relevant users to it. This is done because we want to avoid bugs in the future where we check for only effective fsuid of the current task against a file's owning uid, without simultaneously checking for CAP_FOWNER as well, thus violating its semantics. [ XFS uses special macros and structures, and in general looked ... untouchable, so we leave it alone -- but it has been looked over. ] The (current->fsuid != inode->i_uid) check in generic_permission() and exec_permission_lite() is left alone, because those operations are covered by CAP_DAC_OVERRIDE and CAP_DAC_READ_SEARCH. Similarly operations falling under the purview of CAP_CHOWN and CAP_LEASE are also left alone. Signed-off-by: Satyam Sharma <ssatyam@cse.iitk.ac.in> Cc: Al Viro <viro@ftp.linux.org.uk> Acked-by: Serge E. Hallyn <serge@hallyn.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* ocfs2: Support xfs style space reservation ioctlsMark Fasheh2007-07-101-0/+15
| | | | | | | | | | | | | | | We re-use the RESVSP/UNRESVSP ioctls from xfs which allow the user to allocate and deallocate regions to a file without zeroing data or changing i_size. Though renamed, the structure passed in from user is identical to struct xfs_flock64. The three fields that are actually used right now are l_whence, l_start and l_len. This should get ocfs2 immediate compatibility with userspace software using the pre-existing xfs ioctls. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* [PATCH] Copy i_flags to ocfs2 inode flags on writeJan Kara2007-05-021-0/+1
| | | | | | | | | Propagate flags such as S_APPEND, S_IMMUTABLE, etc. from i_flags into ocfs2-specific ip_attr. Hence, when someone sets these flags via a different interface than ioctl, they are stored correctly. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: Implement compat_ioctl()Mark Fasheh2007-05-021-0/+23
| | | | | | We need this to support 32 bit system calls on 64 bit kernels. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* ocfs2: Remove struct ocfs2_journal_handle in favor of handle_tMark Fasheh2006-12-011-1/+1
| | | | | | | | | | This is mostly a search and replace as ocfs2_journal_handle is now no more than a container for a handle_t pointer. ocfs2_commit_trans() becomes very straight forward, and we remove some out of date comments / code. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
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