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* [PATCH] autofs4: fix race in unhashed dentry codeJeff Mahoney2007-04-12
| | | | | | | | | | | | | | | | | | | | Commit f50b6f8691cae2e0064c499dd3ef3f31142987f0 introduced a race in autofs4 between autofs_lookup_unhashed() and autofs_dentry_release(). autofs_dentry_release() ends up clearing the ->dentry and ->inode members of autofs_info before removing it from the rehash list. The list is protected by the rehash lock in both functions, but since autofs_dentry_release() starts tearing the autofs_info struct down before removing it from the list, autofs_lookup_unhashed() can get a autofs_info with a NULL dentry. This patch moves the clearing of ->dentry and ->inode after the removal from the rehash list. Signed-off-by: Jeff Mahoney <jeffm@suse.com> Acked-by: Ian Kent <raven@themaw.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] reiserfs: fix key decrementingVladimir Saveliev2007-04-12
| | | | | | | | | | | | | | | | This patch fixes a bug in function decrementing a key of stat data item. Offset of reiserfs keys are compared as signed values. To set key offset to maximal possible value maximal signed value has to be used. This bug is responsible for severe reiserfs filesystem corruption which shows itself as warning vs-13060. reiserfsck fixes this corruption by filesystem tree rebuilding. Signed-off-by: Vladimir Saveliev <vs@namesys.com> Cc: <reiserfs-dev@namesys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] fuse: validate rootmode mount optionTimo Savola2007-04-08
| | | | | | | | | | If rootmode isn't valid, we hit the BUG() in fuse_init_inode. Now EINVAL is returned. Signed-off-by: Timo Savola <tsavola@movial.fi> Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] remove protection of LANANA-reserved majorsAndrew Morton2007-04-05
| | | | | | | | | | | | | Revert all this. It can cause device-mapper to receive a different major from earlier kernels and it turns out that the Amanda backup program (via GNU tar, apparently) checks major numbers on files when performing incremental backups. Which is a bit broken of Amanda (or tar), but this feature isn't important enough to justify the churn. Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] revert "retries in ext4_prepare_write() violate ordering requirements"Andrew Morton2007-04-02
| | | | | | | | | | | | | | Revert b46be05004abb419e303e66e143eed9f8a6e9f3f. Same reasoning as for ext3. Cc: Kirill Korotaev <dev@openvz.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Ken Chen <kenneth.w.chen@intel.com> Cc: Andrey Savochkin <saw@sw.ru> Cc: <linux-ext4@vger.kernel.org> Cc: Dmitriy Monakhov <dmonakhov@openvz.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] revert "retries in ext3_prepare_write() violate ordering requirements"Andrew Morton2007-04-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Revert e92a4d595b464c4aae64be39ca61a9ffe9c8b278. Dmitry points out "When we block_prepare_write() failed while ext3_prepare_write() we jump to "failure" label and call ext3_prepare_failure() witch search last mapped bh and invoke commit_write untill it. This is wrong!! because some bh from begining to the last mapped bh may be not uptodate. As a result we commit to disk not uptodate page content witch contains garbage from previous usage." and "Unexpected file size increasing." Call trace the same as it was in first issue but result is different. For example we have file with i_size is zero. we want write two blocks , but fs has only one free block. ->ext3_prepare_write(...from == 0, to == 2048) retry: ->block_prepare_write() == -ENOSPC# we failed but allocated one block here. ->ext3_prepare_failure() ->commit_write( from == 0, to == 1024) # after this i_size becomes 1024 :) if (ret == -ENOSPC && ext3_should_retry_alloc(inode->i_sb, &retries)) goto retry; Finally when all retries will be spended ext3_prepare_failure return -ENOSPC, but i_size was increased and later block trimm procedures can't help here. We don't appear to have the horsepower to fix these issues, so let's put things back the way they were for now. Cc: Kirill Korotaev <dev@openvz.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Ken Chen <kenneth.w.chen@intel.com> Cc: Andrey Savochkin <saw@sw.ru> Cc: <linux-ext4@vger.kernel.org> Cc: Dmitriy Monakhov <dmonakhov@openvz.org> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] fix page leak during core dumpBrian Pomerantz2007-04-02
| | | | | | | | | | | | | | When the dump cannot occur most likely because of a full file system and the page to be written is the zero page, the call to page_cache_release() is missed. Signed-off-by: Brian Pomerantz <bapper@mvista.com> Cc: Hugh Dickins <hugh@veritas.com> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Cc: David Howells <dhowells@redhat.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] proc: fix linkage with CONFIG_SYSCTL=y, CONFIG_PROC_SYSCTL=nAndrew Morton2007-04-02
| | | | | | | | | | | | | | | We're using #ifdef CONFIG_SYSCTL, but we should be using CONFIG_PROC_SYSCTL, so we get fs/built-in.o: In function `proc_root_init': /usr/src/linux/fs/proc/root.c:83: undefined reference to `proc_sys_init' Fix that up and remove an ifdef-in-C. Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Helge Hafting <helgehaf@aitel.hist.no> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2007-03-29
|\ | | | | | | | | * 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: [PATCH] splice: partial write fix
| * [PATCH] splice: partial write fixDmitriy Monakhov2007-03-29
| | | | | | | | | | | | | | | | | | | | Currently if partial write has happened while ->commit_write() then page wasn't marked as accessed and rebalanced. Signed-off-by: Monakhov Dmitriy <dmonakhov@openvz.org> Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | [PATCH] uml: hostfs variable renamingPaolo 'Blaisorblade' Giarrusso2007-03-29
| | | | | | | | | | | | | | | | | | | | * rename name to host_root_path * rename data to req_root. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] uml: fix compilation problemsJeff Dike2007-03-29
|/ | | | | | | | | | | | Fix a few miscellaneous compilation problems - an assignment with mismatched types in ldt.c a missing include in mconsole.h which needs a definition of uml_pt_regs I missed removing an include of user_util.h in hostfs Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'upstream-linus' of ↵Linus Torvalds2007-03-28
|\ | | | | | | | | | | | | | | 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_dlm: Check for migrateable lockres in dlm_empty_lockres() ocfs2_dlm: Fix lockres ref counting bug
| * ocfs2_dlm: Check for migrateable lockres in dlm_empty_lockres()Sunil Mushran2007-03-26
| | | | | | | | | | | | | | | | | | | | In dlm_migrate_lockres(), we check upfront whether the lockres is a candidate for migration. This patch encapsulates that code in a separate function so that dlm_empty_lockres() can also use it during umount. This patch addresses the umount process spinning problem. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
| * ocfs2_dlm: Fix lockres ref counting bugSunil Mushran2007-03-26
| | | | | | | | | | | | | | | | | | During umount, the umount thread migrates the lockres' and the dlm_thread frees the empty lockres'. Due to a race, the reference counting on the lockres goes awry leading to extra puts. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
* | Merge branch 'upstream-fixes' of ↵Jeff Garzik2007-03-28
|\ \ | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6 into upstream-fixes
| * | [PATCH] wext: Add missing ioctls to 64<->32 conversionJean Tourrilhes2007-03-27
| |/ | | | | | | | | | | | | | | | | Johannes Berg and Michael Buesch noticed that the WPA ioctls were missing from the 64<->32 bit conversion. This means that when using a 32 bits userspace on a 64 bit kernel, those ioctls fail. Signed-off-by: Jean Tourrilhes <jt@hpl.hp.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
* | [PATCH] aio: remove bare user-triggerable error printkZach Brown2007-03-27
| | | | | | | | | | | | | | | | | | | | | | | | The user can generate console output if they cause do_mmap() to fail during sys_io_setup(). This was seen in a regression test that does exactly that by spinning calling mmap() until it gets -ENOMEM before calling io_setup(). We don't need this printk at all, just remove it. Signed-off-by: Zach Brown <zach.brown@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-blockLinus Torvalds2007-03-27
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block: Export __splice_from_pipe() 2/2 splice: dont readpage 1/2 splice: dont steal make elv_register() output atomic block: blk_max_pfn is somtimes wrong
| * | Export __splice_from_pipe()Mark Fasheh2007-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | Ocfs2 wants to implement it's own splice write actor so that it can better manage cluster / page locks. This lets us re-use the rest of splice write while only providing our own code where it's actually important. Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | 2/2 splice: dont readpageNick Piggin2007-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Splice does not need to readpage to bring the page uptodate before writing to it, because prepare_write will take care of that for us. Splice is also wrong to SetPageUptodate before the page is actually uptodate. This results in the old uninitialised memory leak. This gets fixed as a matter of course when removing the readpage logic. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
| * | 1/2 splice: dont stealNick Piggin2007-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Stealing pages with splice is problematic because we cannot just insert an uptodate page into the pagecache and hope the filesystem can take care of it later. We also cannot just ClearPageUptodate, then hope prepare_write does not write anything into the page, because I don't think prepare_write gives that guarantee. Remove support for SPLICE_F_MOVE for now. If we really want to bring it back, we might be able to do so with a the new filesystem buffered write aops APIs I'm working on. If we really don't want to bring it back, then we should decide that sooner rather than later, and remove the flag and all the stealing infrastructure before anybody starts using it. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | | [PATCH] Fix kernel build with EMBEDDED & PROC_FS & !PROC_SYSCTLMika Kukkonen2007-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Without attached patch against current -git I get following with !PROC_SYSCTL (with EMBEDDED and PROC_FS set): CC init/version.o LD init/built-in.o LD vmlinux fs/built-in.o: In function `do_proc_sys_lookup': proc_sysctl.c:(.text+0x26583): undefined reference to `sysctl_head_next' fs/built-in.o: In function `proc_sys_revalidate': proc_sysctl.c:(.text+0x265bb): undefined reference to `sysctl_head_finish' fs/built-in.o: In function `proc_sys_readdir': proc_sysctl.c:(.text+0x26720): undefined reference to `sysctl_head_next' proc_sysctl.c:(.text+0x267d8): undefined reference to `sysctl_head_finish' proc_sysctl.c:(.text+0x268e7): undefined reference to `sysctl_head_next' proc_sysctl.c:(.text+0x26910): undefined reference to `sysctl_head_finish' fs/built-in.o: In function `proc_sys_write': proc_sysctl.c:(.text+0x2695d): undefined reference to `sysctl_perm' proc_sysctl.c:(.text+0x2699c): undefined reference to `sysctl_head_finish' fs/built-in.o: In function `proc_sys_read': proc_sysctl.c:(.text+0x269e9): undefined reference to `sysctl_perm' proc_sysctl.c:(.text+0x26a25): undefined reference to `sysctl_head_finish' fs/built-in.o: In function `proc_sys_permission': proc_sysctl.c:(.text+0x26ad1): undefined reference to `sysctl_perm' proc_sysctl.c:(.text+0x26adb): undefined reference to `sysctl_head_finish' fs/built-in.o: In function `proc_sys_lookup': proc_sysctl.c:(.text+0x26b39): undefined reference to `sysctl_head_finish' make: *** [vmlinux] Virhe 1 All those functions are in fs/proc/proc_sysctl.c, which has no CONFIG_ #define's in it, so the patch makes the compilation of that file to depend on CONFIG_PROC_SYSCTL (the simplest choice). Acked-by: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] knfsd: nfsd4: remove superfluous cancel_delayed_work() callJ. Bruce Fields2007-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This cancel_delayed_work call is called from a function that is only called from a piece of code that immediate follows a cancel and destruction of the workqueue, so it's clearly a mistake. Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] knfsd: nfsd4: demote "clientid in use" printk to a dprintkBruce Fields2007-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The reused clientid here is a more of a problem for the client than the server, and the client can report the problem itself if it's serious. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] knfsd: nfsd4: fix inheritance flags on v4 ace derived from posix ↵Bruce Fields2007-03-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | default ace A regression introduced in the last set of acl patches removed the INHERIT_ONLY flag from aces derived from the posix acl. Fix. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | | [PATCH] knfsd: allow nfsd READDIR to return 64bit cookiesNeilBrown2007-03-27
|/ / | | | | | | | | | | | | | | | | | | | | | | ->readdir passes lofft_t offsets (used as nfs cookies) to nfs3svc_encode_entry{,_plus}, but when they pass it on to encode_entry it becomes an 'off_t', which isn't good. So filesystems that returned 64bit offsets would lose. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* / 9p: make struct v9fs_cached_file_operations staticAdrian Bunk2007-03-26
|/ | | | | | | | This patch makes te needlessly global struct v9fs_cached_file_operations static. Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
* [PATCH] "ext[34]: EA block reference count racing fix" performance fixAndrew Morton2007-03-23
| | | | | | | | | A little mistake in 8a2bfdcbfa441d8b0e5cb9c9a7f45f77f80da465 is making all transactions synchronous, which reduces ext3 performance to comical levels. Cc: Mingming Cao <cmm@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] FDPIC: fix the /proc/pid/stat representation of executable boundariesDavid Howells2007-03-23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the /proc/pid/stat representation of executable boundaries. It should show the bounds of the executable, but instead shows the bounds of the loader. Before the patch is applied, the bug can be seen by examining, say, inetd: # ps | grep inetd 610 root 0 S /usr/sbin/inetd -i # cat /proc/610/maps c0bb0000-c0bba788 r-xs 00000000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so c3180000-c31dede4 r-xs 00000000 00:0b 14582179 /lib/libuClibc-0.9.28.so c328c000-c328ea00 rw-p 00008000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so c3290000-c329b6c0 rw-p 00000000 00:00 0 c32a0000-c32c0000 rwxp 00000000 00:00 0 c32d4000-c32d8000 rw-p 00000000 00:00 0 c3394000-c3398000 rw-p 00000000 00:00 0 c3458000-c345f464 r-xs 00000000 00:0b 16384612 /usr/sbin/inetd c3470000-c34748f8 rw-p 00004000 00:0b 16384612 /usr/sbin/inetd c34cc000-c34d0000 rw-p 00000000 00:00 0 c34d4000-c34d8000 rw-p 00000000 00:00 0 c34d8000-c34dc000 rw-p 00000000 00:00 0 # cat /proc/610/stat 610 (inetd) S 1 610 610 0 -1 256 0 0 0 0 0 8 0 0 19 0 1 0 94392000718 950272 0 4294967295 3233480704 3233523592 3274440352 3274439976 3273467584 0 0 4096 90115 3221712796 0 0 17 0 0 0 0 The code boundaries are 3233480704 to 3233523592, which are: (gdb) p/x 3233480704 $1 = 0xc0bb0000 (gdb) p/x 3233523592 $2 = 0xc0bba788 Which corresponds to this line in the maps file: c0bb0000-c0bba788 r-xs 00000000 00:0b 14582157 /lib/ld-uClibc-0.9.28.so Which is wrong. After the patch is applied, the maps file is pretty much identical (there's some minor shuffling of the location of some of the anonymous VMAs), but the stat file is now: # cat /proc/610/stat 610 (inetd) S 1 610 610 0 -1 256 0 0 0 0 0 7 0 0 18 0 1 0 94392000722 950272 0 4294967295 3276111872 3276141668 3274440352 3274439976 3273467584 0 0 4096 90115 3221712796 0 0 17 0 0 0 0 The code boundaries are then 3276111872 to 3276141668, which are: (gdb) p/x 3276111872 $1 = 0xc3458000 (gdb) p/x 3276141668 $2 = 0xc345f464 And these correspond to this line in the maps file instead: c3458000-c345f464 r-xs 00000000 00:0b 16384612 /usr/sbin/inetd Which is now correct. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds2007-03-22
|\ | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: [CIFS] Allow reset of file to ATTR_NORMAL when archive bit not set [CIFS] Do not negotiate new POSIX_PATH_OPERATIONS_CAP yet [CIFS] reset mode when client notices that ATTR_READONLY is no longer set
| * [CIFS] Allow reset of file to ATTR_NORMAL when archive bit not setSteve French2007-03-22
| | | | | | | | | | | | | | | | | | | | | | | | When a file had a dos attribute of 0x1 (readonly - but dos attribute of archive was not set) - doing chmod 0777 or equivalent would try to set a dos attribute of 0 (which some servers ignore) rather than ATTR_NORMAL (0x20) which most servers accept. Does not affect servers which support the CIFS Unix Extensions. Acked-by: Prasad Potluri <pvp@us.ibm.com> Acked-by: Shirish Pargaonkar <shirishp@us.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] Do not negotiate new POSIX_PATH_OPERATIONS_CAP yetSteve French2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Samba server now expects that clients which send the new POSIX_PATH_OPERATIONS_CAP send all opens with this new SMB - and expects that clients that could send the new posix open/create but don't as indicating that they really want Windows semantics on that handle (which allows Samba to support clients which want to support both types of behaviors on different handles on the same mount) We will put this capability back in the SetFSInfo negotiation with servers like Samba when the new POSIXCreate (create/open/mkdir) code is finished. Signed-off-by: Steve French <sfrench@us.ibm.com>
| * [CIFS] reset mode when client notices that ATTR_READONLY is no longer setAlan Tyson2007-03-10
| | | | | | | | | | | | Signed-off-by: Alan Tyso <atyson@hp.com> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
* | [PATCH] Make XFS workqueues nonfreezableRafael J. Wysocki2007-03-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Since freezable workqueues are broken in 2.6.21-rc (cf. http://marc.theaimsgroup.com/?l=linux-kernel&m=116855740612755, http://marc.theaimsgroup.com/?l=linux-kernel&m=117261312523921&w=2) it's better to change the only user of them, which is XFS, to use "normal" nonfreezable workqueues. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Cc: Pavel Machek <pavel@ucw.cz> Cc: David Chinner <dgc@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] fix process crash caused by randomisation and 64k pagesJames Bottomley2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This bug was seen on ppc64, but it could have occurred on any architecture with a page size of 64k or above. The problem is that in fs/binfmt_elf.c:randomize_stack_top() randomizes the stack to within 0x7ff pages. On 4k page machines, this is 8MB; on 64k page boxes, this is 128MB. The problem is that the new binary layout (selected in arch_pick_mmap_layout) places the mapping segment 128MB or the stack rlimit away from the top of the process memory, whichever is larger. If you chose an rlimit of less than 128MB (most defaults are in the 8Mb range) then you can end up having your entire stack randomized away. The fix is to make randomize_stack_top() only steal at most 8MB, which this patch does. However, I have to point out that even with this, your stack rlimit might not be exactly what you get if it's > 128MB, because you're still losing the random offset of up to 8MB. The true fix should be to leave an explicit gap for the randomization plus a buffer when determining mmap_base, but that would involve fixing all the architectures. Cc: Arjan van de Ven <arjan@infradead.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Andi Kleen <ak@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] change misleading EFI partition support descriptionJohannes Berg2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove the misleading "Presently only useful on the IA-64 platform" text from the EFI partition Kconfig. EFI partitions are also used by Apple on their Intel-based machines and thus you need EFI partition support if you (for example) want to attach such a machine in target disk mode. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Matt Domsch <Matt_Domsch@dell.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] nfs: nfs_getattr() can't call nfs_sync_mapping_range() for ↵Trond Myklebust2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | non-regular files Looks like we need a check in nfs_getattr() for a regular file. It makes no sense to call nfs_sync_mapping_range() on anything else. I think that should fix your problem: it will stop the NFS client from interfering with dirty pages on that inode's mapping. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com> Acked-by: Olof Johansson <olof@lixom.net> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] nfs: fix congestion controlPeter Zijlstra2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current NFS client congestion logic is severly broken, it marks the backing device congested during each nfs_writepages() call but doesn't mirror this in nfs_writepage() which makes for deadlocks. Also it implements its own waitqueue. Replace this by a more regular congestion implementation that puts a cap on the number of active writeback pages and uses the bdi congestion waitqueue. Also always use an interruptible wait since it makes sense to be able to SIGKILL the process even for mounts without 'intr'. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Christoph Lameter <clameter@engr.sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] fix rescan_partitions to return errors properlysuzuki2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The only error code which comes from the partition checkers is -1, when they finds an EIO. As per the discussion, ENOMEM values were ignored, as they might scare the users. So, with the current code, we end up returning -1 and not EIO for the ioctl() calls. Which doesn't give any clue to the user of what went wrong. Signed-off-by: Suzuki K P <suzuki@in.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] smbfs: double free memory corruptionVasily Averin2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | smbfs allocates rq_trans2buffer to handle server's multi transaction2 response messages. As struct smb_request may be reused, rq_trans2buffer is freed before each new request. However if last servers's response is not multi but single trans2 message then new rq_trans2buffer is not allocated but last smb_rput still tries to free it again. To prevent this issue rq_trans2buffer pointer should be set to NULL after kfree. Signed-off-by: Vasily Averin <vvs@sw.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] eCryptfs: fix possible NULL ptr deref in ecryptfs_d_release()Michael Halcrow2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | ecryptfs_d_release() first dereferences a pointer (via ecryptfs_dentry_to_lower()) and then afterwards checks to see if the pointer it just dereferenced is NULL (via ecryptfs_dentry_to_private()). This patch moves all of the work done on the dereferenced pointer inside a block governed by the condition that the pointer is non-NULL. Signed-off-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>
* | [PATCH] ufs2: tindirect truncate fixEvgeniy Dushistov2007-03-16
| | | | | | | | | | | | | | | | | | | | | | During modification of code to support UFS2 writing, the case with "three indirect" blocks in truncate path was missed, this patch fixes this situation. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Acked-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] ufs: zeroize the rest of block in truncateEvgeniy Dushistov2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fix behaviour in such test scenario: lseek(fd, BIG_OFFSET) write(fd, buf, sizeof(buf)) truncate(BIG_OFFSET) truncate(BIG_OFFSET + sizeof(buf)) read(fd, buf...) Because of if file big enough(BIG_OFFSET) we start allocate space by block, ordinary block size > page size, so we should zeroize the rest of block in truncate(except last framgnet, about which VFS should care), to not get garbage, when we extend file. Also patch corrects conversion from pointer to block to physical block number, this helps in case of not common used UFS types. And add to debug output inode number. Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] ufs: prepare write + change blocks on the flyEvgeniy Dushistov2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This fixes "change blocks numbers on the fly" in case when "prepare write page" is in the call chain, in this case some buffers may be not uptodate and not mapped, we should care to map them and load from disk. This patch was tested with: - ufs regressions simple tests - fsx-linux - ltp(20060306) - untar and build kernel Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] ufs2: more correct work with timeEvgeniy Dushistov2007-03-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch corrects work with time in UFS2 case. 1) According to UFS2 disk layout modification/access and so on "time" should be hold in two variables one 64bit for seconds and another 32bit for nanoseconds, at now for some unknown reason we suppose that "inode time" holds in three variables 32bit for seconds, 32bit for milliseconds and 32bit for nanoseconds. 2) We set amount of nanoseconds in "VFS inode" to 0 during read, instead of getting values from "on disk inode"(this should close http://bugzilla.kernel.org/show_bug.cgi?id=7991). Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru> Cc: Bjoern Jacke <bjoern@j3e.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] sysfs: reinstate exclusion between method calls and attribute ↵Alan Stern2007-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | unregistration This patch (as869) reinstates the mutual exclusion between sysfs attribute method calls and attribute unregistration. The previously-reported deadlocks have been fixed, and this exclusion is by far the simplest way to avoid races during driver unbinding. The check for orphaned read-buffers has been moved down slightly, so that the remainder of a partially-read buffer will still be available to userspace even after the attribute has been unregistered. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Hugh Dickins <hugh@veritas.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [PATCH] sysfs and driver core: add callback helper, used by SCSI and S390Alan Stern2007-03-15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as868) adds a helper routine for device drivers that need to set up a callback to perform some action in a different process's context. This is intended for use by attribute methods that want to unregister themselves or their parent device. Attribute method calls are mutually exclusive with unregistration, so such actions cannot be taken directly. Two attribute methods are converted to use the new helper routine: one for SCSI device deletion and one for System/390 ccwgroup devices. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Cc: Hugh Dickins <hugh@veritas.com> Cc: Cornelia Huck <cornelia.huck@de.ibm.com> Cc: Oliver Neukum <oneukum@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge branch 'upstream-linus' of ↵Linus Torvalds2007-03-14
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | master.kernel.org:/pub/scm/linux/kernel/git/mfasheh/ocfs2 * 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/mfasheh/ocfs2: ocfs2_dlm: Add missing locks in dlm_empty_lockres ocfs2_dlm: Missing get/put lockres in dlm_run_purge_lockres configfs: add missing mutex_unlock() ocfs2: add some missing address space callbacks ocfs2: Concurrent access of o2hb_region->hr_task was not locked ocfs2: Proper cleanup in case of error in ocfs2_register_hb_callbacks()
| * | ocfs2_dlm: Add missing locks in dlm_empty_lockresSunil Mushran2007-03-14
| | | | | | | | | | | | | | | | | | | | | __dlm_lockres_unused() expects the caller to take the lockres spinlock. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-25 13:44:34 -0500