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* switch posix_acl_equiv_mode() to umode_t *Al Viro2011-08-011-1/+1
| | | | | | ... so that &inode->i_mode could be passed to it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch posix_acl_create() to umode_t *Al Viro2011-08-011-1/+1
| | | | | | so we can pass &inode->i_mode to it Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* fs: take the ACL checks to common codeChristoph Hellwig2011-07-251-18/+6
| | | | | | | | | Replace the ->check_acl method with a ->get_acl method that simply reads an ACL from disk after having a cache miss. This means we can replace the ACL checking boilerplate code with a single implementation in namei.c. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* kill boilerplates around posix_acl_create_masq()Al Viro2011-07-251-22/+14
| | | | | | | | | new helper: posix_acl_create(&acl, gfp, mode_p). Replaces acl with modified clone, on failure releases acl and replaces with NULL. Returns 0 or -ve on error. All callers of posix_acl_create_masq() switched. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* kill boilerplate around posix_acl_chmod_masq()Al Viro2011-07-251-9/+6
| | | | | | | | | new helper: posix_acl_chmod(&acl, gfp, mode). Replaces acl with modified clone or with NULL if that has failed; returns 0 or -ve on error. All callers of posix_acl_chmod_masq() switched to that - they'd been doing exactly the same thing. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* vfs: move ACL cache lookup into generic codeLinus Torvalds2011-07-251-3/+0
| | | | | | | | | | | | | | This moves logic for checking the cached ACL values from low-level filesystems into generic code. The end result is a streamlined ACL check that doesn't need to load the inode->i_op->check_acl pointer at all for the common cached case. The filesystems also don't need to check for a non-blocking RCU walk case in their acl_check() functions, because that is all handled at a VFS layer. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ocfs2_init_acl(): fix a leakAl Viro2011-07-241-0/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ->permission() sanitizing: don't pass flags to ->check_acl()Al Viro2011-07-201-1/+1
| | | | | | not used in the instances anymore. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ->permission() sanitizing: pass MAY_NOT_BLOCK to ->check_acl()Al Viro2011-07-201-1/+1
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2011-03-281-1/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
| * 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>
* | 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>
* fs: provide rcu-walk aware permission i_opsNick Piggin2011-01-071-2/+6
| | | | Signed-off-by: Nick Piggin <npiggin@kernel.dk>
* ocfs2: update ctime when changing the file's permission by setfaclTao Ma2010-09-231-0/+3
| | | | | | | | | | | | | | | In commit 30e2bab, ext3 fixed it. So change it accordingly in ocfs2. Steps to reproduce: # touch aaa # stat -c %Z aaa 1283760364 # setfacl -m 'u::x,g::x,o::x' aaa # stat -c %Z aaa 1283760364 Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* Fix the nested PR lock calling issue in ACLJiaju Zhang2010-08-071-3/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hi, Thanks a lot for all the review and comments so far;) I'd like to send the improved (V4) version of this patch. This patch fixes a deadlock in OCFS2 ACL. We found this bug in OCFS2 and Samba integration using scenario, the symptom is several smbd processes will be hung under heavy workload. Finally we found out it is the nested PR lock calling that leads to this deadlock: node1 node2 gr PR | V PR(EX)---> BAST:OCFS2_LOCK_BLOCKED | V rq PR | V wait=1 After requesting the 2nd PR lock, the process "smbd" went into D state. It can only be woken up when the 1st PR lock's RO holder equals zero. There should be an ocfs2_inode_unlock in the calling path later on, which can decrement the RO holder. But since it has been in uninterruptible sleep, the unlock function has no chance to be called. The related stack trace is: smbd D ffff8800013d0600 0 9522 5608 0x00000000 ffff88002ca7fb18 0000000000000282 ffff88002f964500 ffff88002ca7fa98 ffff8800013d0600 ffff88002ca7fae0 ffff88002f964340 ffff88002f964340 ffff88002ca7ffd8 ffff88002ca7ffd8 ffff88002f964340 ffff88002f964340 Call Trace: [<ffffffff80350425>] schedule_timeout+0x175/0x210 [<ffffffff8034f580>] wait_for_common+0xf0/0x210 [<ffffffffa03e12b9>] __ocfs2_cluster_lock+0x3b9/0xa90 [ocfs2] [<ffffffffa03e7665>] ocfs2_inode_lock_full_nested+0x255/0xdb0 [ocfs2] [<ffffffffa0446019>] ocfs2_get_acl+0x69/0x120 [ocfs2] [<ffffffffa0446368>] ocfs2_check_acl+0x28/0x80 [ocfs2] [<ffffffff800e3507>] acl_permission_check+0x57/0xb0 [<ffffffff800e357d>] generic_permission+0x1d/0xc0 [<ffffffffa03eecea>] ocfs2_permission+0x10a/0x1d0 [ocfs2] [<ffffffff800e3f65>] inode_permission+0x45/0x100 [<ffffffff800d86b3>] sys_chdir+0x53/0x90 [<ffffffff80007458>] system_call_fastpath+0x16/0x1b [<00007f34a4ef6927>] 0x7f34a4ef6927 For details, please see: https://bugzilla.novell.com/show_bug.cgi?id=614332 and http://oss.oracle.com/bugzilla/show_bug.cgi?id=1278 Signed-off-by: Jiaju Zhang <jjzhang@suse.de> Acked-by: Mark Fasheh <mfasheh@suse.com> Cc: stable@kernel.org Signed-off-by: Joel Becker <joel.becker@oracle.com>
* ocfs2: do not overwrite error codes in ocfs2_init_aclTiger Yang2010-08-071-2/+7
| | | | | | | | | | | Setting the acl while creating a new inode depends on the error codes of posix_acl_create_masq. This patch fix a issue of overwriting the error codes of it. Reported-by: Pawel Zawora <pzawora@gmail.com> Cc: <stable@kernel.org> [ .33, .34 ] Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* ocfs: constify xattr_handlerStephen Hemminger2010-05-211-2/+2
| | | | | Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* include cleanup: Update gfp.h and slab.h includes to prepare for breaking ↵Tejun Heo2010-03-301-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
* ocfs2: set i_mode on disk during acl operationsMark Fasheh2010-03-171-5/+72
| | | | | | | | | | | | ocfs2_set_acl() and ocfs2_init_acl() were setting i_mode on the in-memory inode, but never setting it on the disk copy. Thus, acls were some times not getting propagated between nodes. This patch fixes the issue by adding a helper function ocfs2_acl_set_mode() which does this the right way. ocfs2_set_acl() and ocfs2_init_acl() are then updated to call ocfs2_acl_set_mode(). Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2009-12-241-4/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: ocfs2/trivial: Use le16_to_cpu for a disk value in xattr.c ocfs2/trivial: Use proper mask for 2 places in hearbeat.c Ocfs2: Let ocfs2 support fiemap for symlink and fast symlink. Ocfs2: Should ocfs2 support fiemap for S_IFDIR inode? ocfs2: Use FIEMAP_EXTENT_SHARED fiemap: Add new extent flag FIEMAP_EXTENT_SHARED ocfs2: replace u8 by __u8 in ocfs2_fs.h ocfs2: explicit declare uninitialized var in user_cluster_connect() ocfs2-devel: remove redundant OCFS2_MOUNT_POSIX_ACL check in ocfs2_get_acl_nolock() ocfs2: return -EAGAIN instead of EAGAIN in dlm ocfs2/cluster: Make fence method configurable - v2 ocfs2: Set MS_POSIXACL on remount ocfs2: Make acl use the default ocfs2: Always include ACL support
| * ocfs2-devel: remove redundant OCFS2_MOUNT_POSIX_ACL check in ↵Jeff Liu2009-12-171-4/+0
| | | | | | | | | | | | | | | | | | | | ocfs2_get_acl_nolock() osb->s_mount_opt has already been checked against OCFS2_MOUNT_POSIX_ACL_CHECK before calling ocfs2_get_acl_nolock() in ocfs2_init_acl() && ocfs2_get_acl(), so remove it. Signed-off-by: Jeff Liu <jeff.liu@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
* | sanitize xattr handler prototypesChristoph Hellwig2009-12-161-62/+25
|/ | | | | | | | | | | | | | | | | | | | | Add a flags argument to struct xattr_handler and pass it to all xattr handler methods. This allows using the same methods for multiple handlers, e.g. for the ACL methods which perform exactly the same action for the access and default ACLs, just using a different underlying attribute. With a little more groundwork it'll also allow sharing the methods for the regular user/trusted/secure handlers in extN, ocfs2 and jffs2 like it's already done for xfs in this patch. Also change the inode argument to the handlers to a dentry to allow using the handlers mechnism for filesystems that require it later, e.g. cifs. [with GFS2 bits updated by Steven Whitehouse <swhiteho@redhat.com>] Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: James Morris <jmorris@namei.org> Acked-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* New helper - current_umask()Al Viro2009-03-311-1/+1
| | | | | | | current->fs->umask is what most of fs_struct users are doing. Put that into a helper function. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ocfs2: add ocfs2_init_acl in mknodTiger Yang2009-01-051-0/+59
| | | | | | | | We need to get the parent directories acls and let the new child inherit it. To this, we add additional calculations for data/metadata allocation. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: add ocfs2_acl_chmodTiger Yang2009-01-051-0/+27
| | | | | | | This function is used to update acl xattrs during file mode changes. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: add ocfs2_check_aclTiger Yang2009-01-051-0/+15
| | | | | | | This function is used to enhance permission checking with POSIX ACLs. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
* ocfs2: add POSIX ACL APITiger Yang2009-01-051-0/+378
This patch adds POSIX ACL(access control lists) APIs in ocfs2. We convert struct posix_acl to many ocfs2_acl_entry and regard them as an extended attribute entry. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
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