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2008-02-07BKL-removal: Implement a compat_ioctl handler for JFSAndi Kleen5-0/+27
The ioctls were already compatible except for the actual values so this was fairly easy to do. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-02-07BKL-removal: Use unlocked_ioctl for jfsAndi Kleen4-7/+13
Convert jfs_ioctl over to not use the BKL. The only potential race I could see was with two ioctls in parallel changing the flags and losing the updates. Use the i_mutex to protect against this. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-02-07iget: stop JFS from using iget() and read_inode()David Howells4-31/+40
Stop the JFS filesystem from using iget() and read_inode(). Replace jfs_read_inode() with jfs_iget(), and call that instead of iget(). jfs_iget() then uses iget_locked() directly and returns a proper error code instead of an inode in the event of an error. jfs_fill_super() returns any error incurred when getting the root inode instead of EINVAL. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> 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>
2008-02-03Spelling fixes: lenght->lengthPaulius Zaleckas1-1/+1
Signed-off-by: Paulius Zaleckas <pauliusz@yahoo.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2008-01-24mount options: fix jfsMiklos Szeredi1-0/+6
Add iocharset= and errors= options to /proc/mounts for jfs filesystems. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-01-10JFS: simplify types to get rid of sparse warningDave Kleikamp1-14/+14
jfs_metapage.c was using uints and unsigned ints inconsistently when regular ints suffice. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-01-03JFS: FIx one more plain integer as NULL pointer warningDave Kleikamp1-1/+1
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-01-03JFS: Remove defconfig ptr comparison to 0Joe Perches5-14/+15
Remove sparse warning: Using plain integer as NULL pointer Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-01-03JFS: use DIV_ROUND_UP where appropriateShaun Zinck2-3/+3
This replaces some macros and code, which do the same thing as DIV_ROUND_UP defined in kernel.h, to use the DIV_ROUND_UP macro. Signed-off-by: Shaun Zinck <shaun.zinck@gmail.com> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-01-03Remove unnecessary kmalloc casts in the jfs filesystemJack Stone1-6/+2
Signed-off-by: Jack Stone <jack@hawkeye.stone.uk.eu.org> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-01-03JFS is missing a memory barrierNick Piggin1-2/+2
JFS is missing a memory barrier needed to close the critical section before clearing the lock bit. Use lock bitops for this. unlock_page() has a second barrier after clearing the lock, which is required because it checks whether the waitqueue is active without locks. Such a barrier is not required here because the waitqueue spinlock is always taken (something to think about if performance is an issue). Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-01-03JFS: Make sure special inode data is written after journal is flushedDave Kleikamp2-19/+17
This patch makes sure that data that we tried to flush before the journal was completely written actually gets pushed to disk. To avoid duplicating code, moved common code to write_special_inodes(). Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2008-01-03JFS: clear PAGECACHE_TAG_DIRTY for no-write pagesDave Kleikamp1-3/+8
When JFS decides to drop a dirty metapage, it simply clears the META_dirty bit and leave alone the PG_dirty and PAGECACHE_TAG_DIRTY bits. When such no-write page goes to metapage_writepage(), the `relic' PAGECACHE_TAG_DIRTY tag should be cleared, to prevent pdflush from repeatedly trying to sync them. This is done through set_page_writeback(), so call it should be called in all cases. If no I/O is initiated, end_page_writeback() should be called immediately. This is how __block_write_full_page() does things. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> CC: Fengguang Wu <wfg@mail.ustc.edu.cn>
2007-11-14Forbid user to change file flags on quota filesJan Kara1-0/+3
Forbid user from changing file flags on quota files. User has no bussiness in playing with these flags when quota is on. Furthermore there is a remote possibility of deadlock due to a lock inversion between quota file's i_mutex and transaction's start (i_mutex for quota file is locked only when trasaction is started in quota operations) in ext3 and ext4. Signed-off-by: Jan Kara <jack@suse.cz> Cc: LIOU Payphone <lioupayphone@gmail.com> Cc: <linux-ext4@vger.kernel.org> Acked-by: Dave Kleikamp <shaggy@austin.ibm.com> Cc: <reiserfs-dev@namesys.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22exportfs: make struct export_operations constChristoph Hellwig1-2/+2
Now that nfsd has stopped writing to the find_exported_dentry member we an mark the export_operations const Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Neil Brown <neilb@suse.de> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: <linux-ext4@vger.kernel.org> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Anton Altaparmakov <aia21@cantab.net> Cc: David Chinner <dgc@sgi.com> Cc: Timothy Shimmin <tes@sgi.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Hugh Dickins <hugh@veritas.com> Cc: Chris Mason <mason@suse.com> Cc: Jeff Mahoney <jeffm@suse.com> Cc: "Vladimir V. Saveliev" <vs@namesys.com> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Mark Fasheh <mark.fasheh@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-22jfs: new export opsChristoph Hellwig3-18/+27
Trivial switch over to the new generic helpers. Signed-off-by: Christoph Hellwig <hch@lst.de> Cc: Neil Brown <neilb@suse.de> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19Fix misspellings of "system", "controller", "interrupt" and "necessary".Robert P. J. Day1-1/+1
Fix the various misspellings of "system", controller", "interrupt" and "[un]necessary". Signed-off-by: Robert P. J. Day <rpjday@mindspring.com> Signed-off-by: Adrian Bunk <bunk@kernel.org>
2007-10-17introduce I_SYNCJoern Engel1-1/+8
I_LOCK was used for several unrelated purposes, which caused deadlock situations in certain filesystems as a side effect. One of the purposes now uses the new I_SYNC bit. Also document the various bits and change their order from historical to logical. [bunk@stusta.de: make fs/inode.c:wake_up_inode() static] Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de> Cc: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: David Chinner <dgc@sgi.com> Cc: Anton Altaparmakov <aia21@cam.ac.uk> Cc: Al Viro <viro@ftp.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17Slab API: remove useless ctor parameter and reorder parametersChristoph Lameter2-2/+2
Slab constructors currently have a flags parameter that is never used. And the order of the arguments is opposite to other slab functions. The object pointer is placed before the kmem_cache pointer. Convert ctor(void *object, struct kmem_cache *s, unsigned long flags) to ctor(struct kmem_cache *s, void *object) throughout the kernel [akpm@linux-foundation.org: coupla fixes] Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16fs: restore nobhNick Piggin1-4/+3
Implement nobh in new aops. This is a bit tricky. FWIW, nobh_truncate is now implemented in a way that does not create blocks in sparse regions, which is a silly thing for it to have been doing (isn't it?) ext2 survives fsx and fsstress. jfs is converted as well... ext3 should be easy to do (but not done yet). [akpm@linux-foundation.org: coding-style fixes] Cc: Badari Pulavarty <pbadari@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-16jfs: convert to new aopsNick Piggin1-7/+10
Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-14more low-hanging fruits - kernel, fs, lib signednessAl Viro3-3/+3
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-13JFS: Bio cleanup: Replace missing return statementsDave Kleikamp1-0/+3
commit e30408b2a99cb7b8bf529c7dc2328a19d71894cf ("JFS: fix bio-related build breakage") removed some "return 0;" statements, rather than changing them to null returns. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Cc: Jeff Garzik <jeff@garzik.org> Cc: Randy Dunlap <randy.dunlap@oracle.com> Cc: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-12Fix up more bio falloutAl Viro1-3/+0
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-11JFS: fix bio-related build breakageJeff Garzik1-6/+1
Signed-off-by: Jeff Garzik <jgarzik@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-10Drop 'size' argument from bio_endio and bi_end_ioNeilBrown2-14/+3
As bi_end_io is only called once when the reqeust is complete, the 'size' argument is now redundant. Remove it. Now there is no need for bio_endio to subtract the size completed from bi_size. So don't do that either. While we are at it, change bi_end_io to return void. Signed-off-by: Neil Brown <neilb@suse.de> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-07-20mm: Remove slab destructors from kmem_cache_create().Paul Mundt2-2/+2
Slab destructors were no longer supported after Christoph's c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been BUGs for both slab and slub, and slob never supported them either. This rips out support for the dtor pointer from kmem_cache_create() completely and fixes up every single callsite in the kernel (there were about 224, not including the slab allocator definitions themselves, or the documentation references). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-07-17Introduce is_owner_or_cap() to wrap CAP_FOWNER use with fsuid checkSatyam Sharma2-2/+2
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>
2007-07-17knfsd: exportfs: remove iget abuseChristoph Hellwig3-0/+34
When the exportfs interface was added the expectation was that filesystems provide an operation to convert from a file handle to an inode/dentry, but it kept a backwards compat option that still calls into iget. Calling into iget from non-filesystem code is very bad, because it gives too little information to filesystem, and simply crashes if the filesystem doesn't implement the ->read_inode routine. Fortunately there are only two filesystems left using this fallback: efs and jfs. This patch moves a copy of export_iget to each of those to implement the get_dentry method. While this is a temporary increase of lines of code in the kernel it allows for a much cleaner interface and important code restructuring in later patches. [akpm@linux-foundation.org: add jfs_get_inode_flags() declaration] Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Christoph Hellwig <hch@lst.de> 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>
2007-07-17knfsd: exportfs: add exportfs.h headerChristoph Hellwig1-0/+1
currently the export_operation structure and helpers related to it are in fs.h. fs.h is already far too large and there are very few places needing the export bits, so split them off into a separate header. [akpm@linux-foundation.org: fix cifs build] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Neil Brown <neilb@suse.de> Cc: Steven French <sfrench@us.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-10sendfile: remove .sendfile from filesystems that use generic_file_sendfile()Jens Axboe1-1/+0
They can use generic_file_splice_read() instead. Since sys_sendfile() now prefers that, there should be no change in behaviour. Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2007-06-13JFS: Update print_hex_dump() syntaxDave Kleikamp5-29/+28
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-06-06JFS: use print_hex_dump() rather than private dump_mem() functionDave Kleikamp7-45/+29
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-06-06JFS: Whitespace cleanup and remove some dead codeDave Kleikamp23-1098/+1066
Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-05-17Remove SLAB_CTOR_CONSTRUCTORChristoph Lameter2-22/+18
SLAB_CTOR_CONSTRUCTOR is always specified. No point in checking it. Signed-off-by: Christoph Lameter <clameter@sgi.com> Cc: David Howells <dhowells@redhat.com> Cc: Jens Axboe <jens.axboe@oracle.com> Cc: Steven French <sfrench@us.ibm.com> Cc: Michael Halcrow <mhalcrow@us.ibm.com> Cc: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Roman Zippel <zippel@linux-m68k.org> Cc: David Woodhouse <dwmw2@infradead.org> Cc: Dave Kleikamp <shaggy@austin.ibm.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: "J. Bruce Fields" <bfields@fieldses.org> Cc: Anton Altaparmakov <aia21@cantab.net> Cc: Mark Fasheh <mark.fasheh@oracle.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Christoph Hellwig <hch@lst.de> Cc: Jan Kara <jack@ucw.cz> Cc: David Chinner <dgc@sgi.com> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-09Fix occurrences of "the the "Michael Opdenacker3-4/+4
Signed-off-by: Michael Opdenacker <michael@free-electrons.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2007-05-08Merge branch 'for-linus' of ↵Linus Torvalds8-8/+31
git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6: JFS: Fix race waking up jfsIO kernel thread JFS: use __set_current_state() Copy i_flags to jfs inode flags on write JFS: document uid, gid, and umask mount options in jfs.txt
2007-05-08header cleaning: don't include smp_lock.h when not usedRandy Dunlap2-2/+0
Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07slab allocators: Remove SLAB_DEBUG_INITIAL flagChristoph Lameter2-4/+2
I have never seen a use of SLAB_DEBUG_INITIAL. It is only supported by SLAB. I think its purpose was to have a callback after an object has been freed to verify that the state is the constructor state again? The callback is performed before each freeing of an object. I would think that it is much easier to check the object state manually before the free. That also places the check near the code object manipulation of the object. Also the SLAB_DEBUG_INITIAL callback is only performed if the kernel was compiled with SLAB debugging on. If there would be code in a constructor handling SLAB_DEBUG_INITIAL then it would have to be conditional on SLAB_DEBUG otherwise it would just be dead code. But there is no such code in the kernel. I think SLUB_DEBUG_INITIAL is too problematic to make real use of, difficult to understand and there are easier ways to accomplish the same effect (i.e. add debug code before kfree). There is a related flag SLAB_CTOR_VERIFY that is frequently checked to be clear in fs inode caches. Remove the pointless checks (they would even be pointless without removeal of SLAB_DEBUG_INITIAL) from the fs constructors. This is the last slab flag that SLUB did not support. Remove the check for unimplemented flags from SLUB. Signed-off-by: Christoph Lameter <clameter@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-05JFS: Fix race waking up jfsIO kernel threadDave Kleikamp1-1/+2
It's possible for a journal I/O request to be added to the log_redrive queue and the jfsIO thread to be awakened after the thread releases log_redrive_lock but before it sets its state to TASK_INTERRUPTIBLE. The jfsIO thread should set the state before giving up the spinlock, so the waking thread will really wake it. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2007-04-26JFS: use __set_current_state()Milind Arun Choudhary3-6/+6
use __set_current_state(TASK_*) instead of current->state = TASK_* Signed-off-by: Milind Arun Choudhary <milindchoudhary@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-04-25Copy i_flags to jfs inode flags on writeDave Kleikamp5-1/+23
This mirrors Jan Kara's patches for ext3. This patch makes sure that changes made to inode->i_flags are reflected on disk for jfs. It also moves a call of jfs_set_inode_flags() to be more consistent with where jfs_get_inode_flags() is called. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com>
2007-02-26Merge branch 'for-linus' of ↵Linus Torvalds1-1/+2
git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/shaggy/jfs-2.6: JFS: Get rid of "may be used uninitialized" warnings
2007-02-12[PATCH] Mark struct super_operations constJosef 'Jeff' Sipek1-2/+2
This patch is inspired by Arjan's "Patch series to mark struct file_operations and struct inode_operations const". Compile tested with gcc & sparse. Signed-off-by: Josef 'Jeff' Sipek <jsipek@cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-12[PATCH] mark struct inode_operations const 2Arjan van de Ven4-6/+6
Many struct inode_operations in the kernel can be "const". Marking them const moves these to the .rodata section, which avoids false sharing with potential dirty data. In addition it'll catch accidental writes at compile time to these shared resources. Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-02-09JFS: Get rid of "may be used uninitialized" warningsDave Kleikamp1-1/+2
Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2007-01-26JFS: Remove incorrect kgdb defineDave Kleikamp1-5/+0
jfs_debug.h uses an incorrect CONFIG_KERNEL_ASSERT ifdef to redefine the assert macro for kgdb use. I believe the code worked a long time ago, but today it's not a valid config option. Since I'm not aware of anybody interested in debugging jfs with kgdb, it should just be removed. Thanks to Robert P. J. Day for reporting this. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2007-01-17JFS: call io_schedule() instead of schedule() to avoid deadlockDave Kleikamp3-3/+3
The introduction of Jens Axboe's explicit i/o plugging patches introduced a deadlock in jfs. This was caused by the process initiating I/O not unplugging the queue before waiting on the commit thread. The commit thread itself was waiting for that I/O to complete. Calling io_schedule() rather than schedule() unplugs the I/O queue avoiding the deadlock, and it appears to be the right function to call in any case. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2007-01-09JFS: Add lockdep annotationsDave Kleikamp5-41/+74
Yeah, it's about time. Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
2007-01-09JFS: Avoid BUG() on a damaged file systemDave Kleikamp1-0/+15
On Mon, 2006-12-18 at 19:51 +0100, Eric Sesterhenn wrote: > hi, > > while playing around with fsfuzzer, i got the following oops with jfs: > > [ 851.804875] BUG at fs/jfs/jfs_xtree.c:760 > assert(!BT_STACK_FULL(btstack)) > [ 851.805179] ------------[ cut here ]------------ > [ 851.805238] kernel BUG at fs/jfs/jfs_xtree.c:760! JFS should mark the superblock dirty and return an error rather than calling BUG(). Signed-off-by: Dave Kleikamp <shaggy@austin.ibm.com>
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