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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-schedLinus Torvalds2007-08-24
|\ | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/mingo/linux-2.6-sched: sched: tweak the sched_runtime_limit tunable sched: skip updating rq's next_balance under null SD sched: fix broken SMT/MC optimizations sched: accounting regression since rc1 sched: fix sysctl directory permissions sched: sched_clock_idle_[sleep|wakeup]_event()
| * sched: accounting regression since rc1Christian Borntraeger2007-08-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the accounting regression for CONFIG_VIRT_CPU_ACCOUNTING. It reverts parts of commit b27f03d4bdc145a09fb7b0c0e004b29f1ee555fa by converting fs/proc/array.c back to cputime_t. The new functions task_utime and task_stime now return cputime_t instead of clock_t. If CONFIG_VIRT_CPU_ACCOUTING is set, task->utime and task->stime are returned directly instead of using sum_exec_runtime. Patch is tested on s390x with and without VIRT_CPU_ACCOUTING as well as on i386. [ mingo@elte.hu: cleanups, comments. ] Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* | Merge branch 'for-linus' of ↵Linus Torvalds2007-08-24
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ericvh/v9fs: 9p: fix bad error path in conversion routines 9p: remove deprecated v9fs_fid_lookup_remove() 9p: update maintainers and documentation 9p: fix use after free
| * | 9p: remove deprecated v9fs_fid_lookup_remove()Eric Van Hensbergen2007-08-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the v9fs_fid_lookup_remove which is no longer used. Based on original patch from Adrian Bunk <bunk@stusta.de> which used #if 0 to isolate the code. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds2007-08-24
|\ \ \ | |_|/ |/| | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: sysfs: don't warn on removal of a nonexistent binary file HOWTO: latest lxr url address changed HOWTO: korean translation of Documentation/HOWTO Fix Off-by-one in /sys/module/*/refcnt sysfs: fix locking in sysfs_lookup() and sysfs_rename_dir()
| * | sysfs: don't warn on removal of a nonexistent binary fileAlan Stern2007-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as960) removes the error message and stack dump logged by sysfs_remove_bin_file() when someone tries to remove a nonexistent file. The warning doesn't seem to be needed, since none of the other file-, symlink-, or directory-removal routines in sysfs complain in a comparable way. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Acked-by: Tejun Heo <htejun@gmail.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | sysfs: fix locking in sysfs_lookup() and sysfs_rename_dir()Tejun Heo2007-08-22
| |/ | | | | | | | | | | | | | | | | | | | | sd children list walking in sysfs_lookup() and sd renaming in sysfs_rename_dir() were left out during i_mutex -> sysfs_mutex conversion. Fix them. Signed-off-by: Tejun Heo <htejun@gmail.com> Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | exec: kill unsafe BUG_ON(sig->count) checksOleg Nesterov2007-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | de_thread: if (atomic_read(&oldsighand->count) <= 1) BUG_ON(atomic_read(&sig->count) != 1); This is not safe without the rmb() in between. The results of two correctly ordered __exit_signal()->atomic_dec_and_test()'s could be seen out of order on our CPU. The same is true for the "thread_group_empty()" case, __unhash_process()'s changes could be seen before atomic_dec_and_test(&sig->count). On some platforms (including i386) atomic_read() doesn't provide even the compiler barrier, in that case these checks are simply racy. Remove these BUG_ON()'s. Alternatively, we can do something like BUG_ON( ({ smp_rmb(); atomic_read(&sig->count) != 1; }) ); Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Cc: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | autofs4: deadlock during createIan Kent2007-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Due to inconsistent locking in the VFS between calls to lookup and revalidate deadlock can occur in the automounter. The inconsistency is that the directory inode mutex is held for both lookup and revalidate calls when called via lookup_hash whereas it is held only for lookup during a path walk. Consequently, if the mutex is held during a call to revalidate autofs4 can't release the mutex to callback the daemon as it can't know whether it owns the mutex. This situation happens when a process tries to create a directory within an automount and a second process also tries to create the same directory between the lookup and the mkdir. Since the first process has dropped the mutex for the daemon callback, the second process takes it during revalidate leading to deadlock between the autofs daemon and the second process when the daemon tries to create the mount point directory. After spending quite a bit of time trying to resolve this on more than one occassion, using rather complex and ulgy approaches, it turns out that just delaying the hashing of the dentry until the create operation works fine. Signed-off-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | signalfd: make it group-wide, fix posix-timers schedulingOleg Nesterov2007-08-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With this patch any thread can dequeue its own private signals via signalfd, even if it was created by another sub-thread. To do so, we pass "current" to dequeue_signal() if the caller is from the same thread group. This also fixes the scheduling of posix timers broken by the previous patch. If the caller doesn't belong to this thread group, we can't handle __SI_TIMER case properly anyway. Perhaps we should forbid the cross-process signalfd usage and convert ctx->tsk to ctx->sighand. Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Davide Libenzi <davidel@xmailserver.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Michael Kerrisk <mtk-manpages@gmx.net> Cc: Roland McGrath <roland@redhat.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | eCryptfs: fix lookup error for special filesRyusuke Konishi2007-08-22
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | | When ecryptfs_lookup() is called against special files, eCryptfs generates the following errors because it tries to treat them like regular eCryptfs files. Error opening lower file for lower_dentry [0xffff810233a6f150], lower_mnt [0xffff810235bb4c80], and flags [0x8000] Error opening lower_file to read header region Error attempting to read the [user.ecryptfs] xattr from the lower file; return value = [-95] Valid metadata not found in header region or xattr region; treating file as unencrypted For instance, the problem can be reproduced by the steps below. # mkdir /root/crypt /mnt/crypt # mount -t ecryptfs /root/crypt /mnt/crypt # mknod /mnt/crypt/c0 c 0 0 # umount /mnt/crypt # mount -t ecryptfs /root/crypt /mnt/crypt # ls -l /mnt/crypt This patch fixes it by adding a check similar to directories and symlinks. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* dio: zero struct dio with kzalloc instead of manuallyZach Brown2007-08-21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch uses kzalloc to zero all of struct dio rather than manually trying to track which fields we rely on being zero. It passed aio+dio stress testing and some bug regression testing on ext3. This patch was introduced by Linus in the conversation that lead up to Badari's minimal fix to manually zero .map_bh.b_state in commit: 6a648fa72161d1f6468dabd96c5d3c0db04f598a It makes the code a bit smaller. Maybe a couple fewer cachelines to load, if we're lucky: text data bss dec hex filename 3285925 568506 1304616 5159047 4eb887 vmlinux 3285797 568506 1304616 5158919 4eb807 vmlinux.patched I was unable to measure a stable difference in the number of cpu cycles spent in blockdev_direct_IO() when pushing aio+dio 256K reads at ~340MB/s. So the resulting intent of the patch isn't a performance gain but to avoid exposing ourselves to the risk of finding another field like .map_bh.b_state where we rely on zeroing but don't enforce it in the code. Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* JFFS2 locking regression fix.David Woodhouse2007-08-21
| | | | | | | | | | | | | | | Commit a491486a2087ac3dfc00efb4f838c8d684afaf54 introduced a locking problem in JFFS2 -- we up() the alloc_sem when we weren't previously holding it. This leads to all kinds of fun behaviour later. There was a _reason_ for the if (1 /* alternative path needs testing */ || which the above-mentioned commit removed :) Discovered and debugged by Giulio Fedel <giulio.fedel@andorsystems.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2007-08-18
|\ | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] Check return code on failed alloc [CIFS] Update CIFS project web site [CIFS] Fix hang in find_writable_file
| * [CIFS] Check return code on failed allocCyrill Gorcunov2007-08-17
| | | | | | | | | | Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Fix hang in find_writable_fileSteve French2007-07-26
| | | | | | | | | | | | | | | | | | | | | | | | Caused by unneeded reopen during reconnect while spinlock held. Fixes kernel bugzilla bug #7903 Thanks to Lin Feng Shen for testing this, and Amit Arora for some nice problem determination to narrow this down. Acked-by: Dave Kleikamp <shaggy@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | Reset current->pdeath_signal on SUID binary executionMarcel Holtmann2007-08-18
| | | | | | | | | | | | | | | | | | | | | | This fixes a vulnerability in the "parent process death signal" implementation discoverd by Wojciech Purczynski of COSEINC PTE Ltd. and iSEC Security Research. http://marc.info/?l=bugtraq&m=118711306802632&w=2 Signed-off-by: Marcel Holtmann <marcel@holtmann.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [GFS2] Revert remounting w/o acl option leaves acls enabledSteven Whitehouse2007-08-14
| | | | | | | | | | | | | | | | | | This reverts commit 569a7b6c2e8965ff4908003b925757703a3d649c. The code was correct originally. The default setting for ACLs after a remount should be to be the same as before the remount. Signed-off-by: Abhijith Das <adas@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Fix setting of inherit jdata attrSteven Whitehouse2007-08-14
| | | | | | | | | | | | | | | | | | | | | | | | Due to a mix up between the jdata attribute and inherit jdata attribute it has not been possible to set the inherit jdata attribute on directories. This is now fixed and the ioctl will report the inherit jdata attribute for directories rather than the jdata attribute as it did previously. This stems from our need to have the one bit in the ioctl attr flags mean two different things according to whether the underlying inode is a directory or not. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Fix incorrect error path in prepare_write()Steven Whitehouse2007-08-14
| | | | | | | | | | | | | | | | The error path in prepare_write() was incorrect in the (very rare) event that the transaction fails to start. The following prevents a NULL pointer dereference, Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] Fix incorrect return code in rgrp.cSteven Whitehouse2007-08-14
| | | | | | | | | | | | | | | | The following patch fixes a bug where 0 was being used as a return code to indicate "nothing to do" when in fact 0 was a valid block location which might be returned by the function. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] soft lockup in rgblk_searchBob Peterson2007-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch seems to fix the problem described in bugzilla bug 246114. It was written by Steve Whitehouse with some tweaking by me. The code was looping in the relatively new section of code designed to search for and reuse unlinked inodes. In cases where it was finding an appropriate inode to reuse, it was looping around and finding the same block over and over because a "<=" check should have been a "<" when comparing the goal block to the last unlinked block found. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [GFS2] soft lockup detected in databuf_lo_before_commitBob Peterson2007-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is part 2 of the patch for bug #245832, part 1 of which is already in the git tree. The problem was that sdp->sd_log_num_databuf was not always being protected by the gfs2_log_lock spinlock, but the sd_log_le_databuf (which it is supposed to reflect) was protected. That meant there was a timing window during which gfs2_log_flush called databuf_lo_before_commit and the count didn't match what was really on the linked list in that window. So when it ran out of items on the linked list, it decremented total_dbuf from 0 to -1 and thus never left the "while(total_dbuf)" loop. The solution is to protect the variable sdp->sd_log_num_databuf so that the value will always match the contents of the linked list, and therefore the number will never go negative, and therefore, the loop will be exited properly. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [DLM] fix basts for granted PR waiting CWDavid Teigland2007-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix a long standing bug where a blocking callback would be missed when there's a granted lock in PR mode and waiting locks in both PR and CW modes (and the PR lock was added to the waiting queue before the CW lock). The logic simply compared the numerical values of the modes to determine if a blocking callback was required, but in the one case of PR and CW, the lower valued CW mode blocks the higher valued PR mode. We just need to add a special check for this PR/CW case in the tests that decide when a blocking callback is needed. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [DLM] More othercon fixesPatrick Caulfield2007-08-14
| | | | | | | | | | | | | | | | The last patch to clean out 'othercon' structures only fixed half the problem. The attached addresses the other situations too, and fixes bz#238490 Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [DLM] Fix memory leak in dlm_add_member() when dlm_node_weight() returns ↵Jesper Juhl2007-08-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | less than zero There's a memory leak in fs/dlm/member.c::dlm_add_member(). If "dlm_node_weight(ls->ls_name, nodeid)" returns < 0, then we'll return without freeing the memory allocated to the (at that point yet unused) 'memb'. This patch frees the allocated memory in that case and thus avoids the leak. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [DLM] zero unused parts of sockaddr_storagePatrick Caulfield2007-08-14
| | | | | | | | | | | | | | | | | | | | When we build a sockaddr_storage for an IP address, clear the unused parts as they could be used for node comparisons. I have seen this occasionally make sctp connections fail. Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [DLM] fix NULL ls usageDavid Teigland2007-08-14
| | | | | | | | | | | | | | | | Fix regression in recent patch "[DLM] variable allocation" which attempts to dereference an "ls" struct when it's NULL. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | [DLM] Clear othercon pointers when a connection is closedPatrick Caulfield2007-08-14
| | | | | | | | | | | | | | | | This patch clears the othercon pointer and frees the memory when a connnection is closed. This could cause a small memory leak when nodes leave the cluster. Signed-Off-By: Patrick Caulfield <pcaulfie@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | Merge branch 'upstream-linus' of ↵Linus Torvalds2007-08-11
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: ocfs2: set non-default s_time_gran during mount ocfs2: Retry sendpage() if it returns EAGAIN ocfs2: Fix rename/extend race [2.6 patch] ocfs2_insert_extent(): remove dead code ocfs2: Fix max offset calculations ocfs2: check ia_size limits in setattr ocfs2: Fix some casting errors related to file writes ocfs2: use s_maxbytes directly in ocfs2_change_file_space() ocfs2: Restrict inode changes in ocfs2_update_inode_atime()
| * | ocfs2: set non-default s_time_gran during mountMark Fasheh2007-08-09
| | | | | | | | | | | | | | | | | | | | | We need to manually set this to '1' during mount, otherwise inode_setattr() will chop off the nanosecond portion of our timestamps. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Retry sendpage() if it returns EAGAINSunil Mushran2007-08-09
| | | | | | | | | | | | | | | | | | | | | | | | Instead of treating EAGAIN, returned from sendpage(), as an error, this patch retries the operation. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Fix rename/extend raceSunil Mushran2007-08-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If one process is extending a file while another is renaming it, there exists a window when rename could flush the old inode's stale i_size to disk. This patch recognizes the fact that rename is only updating the old inode's ctime, so it ensures only that value is flushed to disk. Signed-off-by: Sunil Mushran <sunil.musran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | [2.6 patch] ocfs2_insert_extent(): remove dead codeAdrian Bunk2007-08-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes some now dead code. Spotted by the Coverity checker. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Fix max offset calculationsMark Fasheh2007-08-09
| | | | | | | | | | | | | | | | | | | | | | | | ocfs2_max_file_offset() was over-estimating the largest file size for several cases. This wasn't really a problem before, but now that we support sparse files, it needs to be more accurate. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: check ia_size limits in setattrMark Fasheh2007-08-09
| | | | | | | | | | | | | | | | | | | | | We have to manually check the requested truncate size as the check in vmtruncate() comes too late for Ocfs2. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Fix some casting errors related to file writesMark Fasheh2007-08-09
| | | | | | | | | | | | | | | | | | | | | | | | ocfs2_align_clusters_to_page_index() needs to cast the clusters shift to pgoff_t and ocfs2_file_buffered_write() needs loff_t when calculating destination start for memcpy. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: use s_maxbytes directly in ocfs2_change_file_space()Mark Fasheh2007-08-09
| | | | | | | | | | | | | | | | | | | | | | | | There's no need to recalculate things via ocfs2_max_file_offset() as we've already done that to fill s_maxbytes, so use that instead. We can also un-export ocfs2_max_file_offset() then. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * | ocfs2: Restrict inode changes in ocfs2_update_inode_atime()Mark Fasheh2007-08-09
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ocfs2_update_inode_atime() calls ocfs2_mark_inode_dirty() to push changes from the struct inode into the ocfs2 disk inode. The problem is, ocfs2_mark_inode_dirty() might change other fields, depending on what happened to the struct inode. Since we don't always have locking to serialize changes to other fields (like i_size, etc), just fix things up to only touch the atime field. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | | eCryptfs: fix error handling in ecryptfs_initRyusuke Konishi2007-08-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ecryptfs_init() exits without doing any cleanup jobs if ecryptfs_init_messaging() fails. In that case, eCryptfs leaves sysfs entries, leaks memory, and causes an invalid page fault. This patch fixes the problem. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | eCryptfs: fix lookup error for special filesRyusuke Konishi2007-08-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When ecryptfs_lookup() is called against special files, eCryptfs generates the following errors because it tries to treat them like regular eCryptfs files. Error opening lower file for lower_dentry [0xffff810233a6f150], lower_mnt [0xffff810235bb4c80], and flags [0x8000] Error opening lower_file to read header region Error attempting to read the [user.ecryptfs] xattr from the lower file; return value = [-95] Valid metadata not found in header region or xattr region; treating file as unencrypted For instance, the problem can be reproduced by the steps below. # mkdir /root/crypt /mnt/crypt # mount -t ecryptfs /root/crypt /mnt/crypt # mknod /mnt/crypt/c0 c 0 0 # umount /mnt/crypt # mount -t ecryptfs /root/crypt /mnt/crypt # ls -l /mnt/crypt This patch fixes it by adding a check similar to directories and symlinks. Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Acked-by: Michael Halcrow <mhalcrow@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | direct-io: fix error-path crashesBadari Pulavarty2007-08-11
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Need to initialize map_bh.b_state to zero. Otherwise, in case of a faulty user-buffer its possible to go into dio_zero_block() and submit a page by mistake - since it checks for buffer_new(). http://marc.info/?l=linux-kernel&m=118551339032528&w=2 akpm: Linus had a (better) patch to just do a kzalloc() in there, but it got lost. Probably this version is better for -stable anwyay. Signed-off-by: Badari Pulavarty <pbadari@us.ibm.com> Acked-by: Joe Jin <joe.jin@oracle.com> Acked-by: Zach Brown <zach.brown@oracle.com> Cc: gurudas pai <gurudas.pai@oracle.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge git://git.linux-nfs.org/pub/linux/nfs-2.6Linus Torvalds2007-08-09
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.linux-nfs.org/pub/linux/nfs-2.6: SUNRPC: Replace flush_workqueue() with cancel_work_sync() and friends NFS: Replace flush_scheduled_work with cancel_work_sync() and friends SUNRPC: Don't call gss_delete_sec_context() from an rcu context NFSv4: Don't call put_rpccred() from an rcu callback NFS: Fix NFSv4 open stateid regressions NFSv4: Fix a locking regression in nfs4_set_mode_locked() NFS: Fix put_nfs_open_context SUNRPC: Fix a race in rpciod_down()
| * | NFS: Replace flush_scheduled_work with cancel_work_sync() and friendsTrond Myklebust2007-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This will avoid deadlocks of the form: stack backtrace: [<c0104fda>] show_trace_log_lvl+0x1a/0x30 [<c0105c02>] show_trace+0x12/0x20 [<c0105d15>] dump_stack+0x15/0x20 [<c013ee42>] __lock_acquire+0xc22/0x1030 [<c013f2b1>] lock_acquire+0x61/0x80 [<c012edd9>] flush_workqueue+0x49/0x70 [<c012ee0d>] flush_scheduled_work+0xd/0x10 [<dcf55c0c>] nfs_release_automount_timer+0x2c/0x30 [nfs] [<dcf45d8e>] nfs_free_server+0x9e/0xd0 [nfs] [<dcf4e626>] nfs_kill_super+0x16/0x20 [nfs] [<c017b38d>] deactivate_super+0x7d/0xa0 [<c018f94b>] mntput_no_expire+0x4b/0x80 [<c018fd94>] expire_mount_list+0xe4/0x140 [<c0191219>] mark_mounts_for_expiry+0x99/0xb0 [<dcf55d1d>] nfs_expire_automounts+0xd/0x40 [nfs] [<c012e61b>] run_workqueue+0x12b/0x1e0 [<c012f05b>] worker_thread+0x9b/0x100 [<c0131c72>] kthread+0x42/0x70 [<c0104c0f>] kernel_thread_helper+0x7/0x18 ======================= Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Don't call put_rpccred() from an rcu callbackTrond Myklebust2007-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Doing so would require us to introduce bh-safe locks into put_rpccred(). This patch fixes the lockdep complaint reported by Marc Dietrich: inconsistent {softirq-on-W} -> {in-softirq-W} usage. swapper/0 [HC0[0]:SC1[1]:HE1:SE0] takes: (rpc_credcache_lock){-+..}, at: [<c01dc487>] _atomic_dec_and_lock+0x17/0x60 {softirq-on-W} state was registered at: [<c013e870>] __lock_acquire+0x650/0x1030 [<c013f2b1>] lock_acquire+0x61/0x80 [<c02db9ac>] _spin_lock+0x2c/0x40 [<c01dc487>] _atomic_dec_and_lock+0x17/0x60 [<dced55fd>] put_rpccred+0x5d/0x100 [sunrpc] [<dced56c1>] rpcauth_unbindcred+0x21/0x60 [sunrpc] [<dced3fd4>] a0 [sunrpc] [<dcecefe0>] rpc_call_sync+0x30/0x40 [sunrpc] [<dcedc73b>] rpcb_register+0xdb/0x180 [sunrpc] [<dced65b3>] svc_register+0x93/0x160 [sunrpc] [<dced6ebe>] __svc_create+0x1ee/0x220 [sunrpc] [<dced7053>] svc_create+0x13/0x20 [sunrpc] [<dcf6d722>] nfs_callback_up+0x82/0x120 [nfs] [<dcf48f36>] nfs_get_client+0x176/0x390 [nfs] [<dcf49181>] nfs4_set_client+0x31/0x190 [nfs] [<dcf49983>] nfs4_create_server+0x63/0x3b0 [nfs] [<dcf52426>] nfs4_get_sb+0x346/0x5b0 [nfs] [<c017b444>] vfs_kern_mount+0x94/0x110 [<c0190a62>] do_mount+0x1f2/0x7d0 [<c01910a6>] sys_mount+0x66/0xa0 [<c0104046>] syscall_call+0x7/0xb [<ffffffff>] 0xffffffff irq event stamp: 5277830 hardirqs last enabled at (5277830): [<c017530a>] kmem_cache_free+0x8a/0xc0 hardirqs last disabled at (5277829): [<c01752d2>] kmem_cache_free+0x52/0xc0 softirqs last enabled at (5277798): [<c0124173>] __do_softirq+0xa3/0xc0 softirqs last disabled at (5277817): [<c01241d7>] do_softirq+0x47/0x50 other info that might help us debug this: no locks held by swapper/0. stack backtrace: [<c0104fda>] show_trace_log_lvl+0x1a/0x30 [<c0105c02>] show_trace+0x12/0x20 [<c0105d15>] dump_stack+0x15/0x20 [<c013ccc3>] print_usage_bug+0x153/0x160 [<c013d8b9>] mark_lock+0x449/0x620 [<c013e824>] __lock_acquire+0x604/0x1030 [<c013f2b1>] lock_acquire+0x61/0x80 [<c02db9ac>] _spin_lock+0x2c/0x40 [<c01dc487>] _atomic_dec_and_lock+0x17/0x60 [<dced55fd>] put_rpccred+0x5d/0x100 [sunrpc] [<dcf6bf83>] nfs_free_delegation_callback+0x13/0x20 [nfs] [<c012f9ea>] __rcu_process_callbacks+0x6a/0x1c0 [<c012fb52>] rcu_process_callbacks+0x12/0x30 [<c0124218>] tasklet_action+0x38/0x80 [<c0124125>] __do_softirq+0x55/0xc0 [<c01241d7>] do_softirq+0x47/0x50 [<c0124605>] irq_exit+0x35/0x40 [<c0112463>] smp_apic_timer_interrupt+0x43/0x80 [<c0104a77>] apic_timer_interrupt+0x33/0x38 [<c02690df>] cpuidle_idle_call+0x6f/0x90 [<c01023c3>] cpu_idle+0x43/0x70 [<c02d8c27>] rest_init+0x47/0x50 [<c03bcb6a>] start_kernel+0x22a/0x2b0 [<00000000>] 0x0 ======================= Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Fix NFSv4 open stateid regressionsTrond Myklebust2007-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Do not allow cached open for O_RDONLY or O_WRONLY unless the file has been previously opened in these modes. Also Fix the calculation of the mode in nfs4_close_prepare. We should only issue an OPEN_DOWNGRADE if we're sure that we will still be holding the correct open modes. This may not be the case if we've been doing delegated opens. Finally, there is no need to adjust the open mode bit flags in nfs4_close_done(): that has already been done in nfs4_close_prepare(). Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFSv4: Fix a locking regression in nfs4_set_mode_locked()Trond Myklebust2007-08-07
| | | | | | | | | | | | | | | | | | | | | | | | We don't really need to clear &state->inode_states inside nfs4_set_mode_locked, and doing so without holding the inode->i_lock would in any case be a bug... Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | NFS: Fix put_nfs_open_contextTrond Myklebust2007-08-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We need to grab the inode->i_lock atomically with the last reference put in order to remove the open context that is being freed from the nfsi->open_files list. Fix by converting the kref to a standard atomic counter and then using atomic_dec_and_lock()... Thanks to Arnd Bergmann for pointing out the problem. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
* | | [PATCH] remove duplicated ioctl entries in compat_ioctl.cMasakazu Mokuno2007-08-06
|/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes some duplicated wireless ioctl entries in the array 'struct ioctl_trans ioctl_start[]' of fs/compat_ioctl.c These entries are registered twice like: COMPATIBLE_IOCTL(SIOCGIWPRIV) and HANDLE_IOCTL(SIOCGIWPRIV, do_wireless_ioctl) Signed-off-by: Masakazu Mokuno <mokuno@sm.sony.co.jp> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | [JFFS2] Print correct node offset when complaining about broken data CRCDavid Woodhouse2007-08-02
| | | | | | | | | | | | | | Debugging the hardware problems in OLPC trac #1905 would be a whole lot easier if the correct node offsets were printed for the offending nodes. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-22 23:20:00 -0500