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2008-10-30[XFS] implement generic xfs_btree_delete/delrecChristoph Hellwig
Make the btree delete code generic. Based on a patch from David Chinner with lots of changes to follow the original btree implementations more closely. While this loses some of the generic helper routines for inserting/moving/removing records it also solves some of the one off bugs in the original code and makes it easier to verify. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32205a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] move xfs_bmbt_killroot to common codeChristoph Hellwig
xfs_bmbt_killroot is a mostly generic implementation of moving from a real block based root to an inode based root. So move it to xfs_btree.c where it can use all the nice infrastructure there and make it pointer size agnostic The new name for it is xfs_btree_kill_iroot, following the old naming but making it clear we're dealing with the root in inode case here, and to avoid confusion with xfs_btree_new_root which is used for the not inode rooted case. I've also added a comment describing what it does and why it's named the way it is. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32203a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_insert/insrecChristoph Hellwig
Make the btree insert code generic. Based on a patch from David Chinner with lots of changes to follow the original btree implementations more closely. While this loses some of the generic helper routines for inserting/moving/removing records it also solves some of the one off bugs in the original code and makes it easier to verify. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32202a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] move xfs_bmbt_newroot to common codeChristoph Hellwig
xfs_bmbt_newroot is a mostly generic implementation of moving from an inode root to a real block based root. So move it to xfs_btree.c where it can use all the nice infrastructure there and make it pointer size agnostic The new name for it is xfs_btree_new_iroot, following the old naming but making it clear we're dealing with the root in inode case here, and to avoid confusion with xfs_btree_new_root which is used for the not inode rooted case. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32201a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement semi-generic xfs_btree_new_rootChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> Add a xfs_btree_new_root helper for the alloc and ialloc btrees. The bmap btree needs it's own version and is not converted. [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32200a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_splitChristoph Hellwig
Make the btree split code generic. Based on a patch from David Chinner with lots of changes to follow the original btree implementations more closely. While this loses some of the generic helper routines for inserting/moving/removing records it also solves some of the one off bugs in the original code and makes it easier to verify. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32198a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_lshiftChristoph Hellwig
Make the btree left shift code generic. Based on a patch from David Chinner with lots of changes to follow the original btree implementations more closely. While this loses some of the generic helper routines for inserting/moving/removing records it also solves some of the one off bugs in the original code and makes it easier to verify. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32197a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_rshiftChristoph Hellwig
Make the btree right shift code generic. Based on a patch from David Chinner with lots of changes to follow the original btree implementations more closely. While this loses some of the generic helper routines for inserting/moving/removing records it also solves some of the one off bugs in the original code and makes it easier to verify. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32196a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_updateChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> The most complicated part here is the lastrec tracking for the alloc btree. Most logic is in the update_lastrec method which has to do some hopefully good enough dirty magic to maintain it. [hch: split out from bigger patch and a rework of the lastrec logic] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32194a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_updkeyChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> Note that there are many > 80 char lines introduced due to the xfs_btree_key casts. But the places where this happens is throw-away code once the whole btree code gets merged into a common implementation. The same is true for the temporary xfs_alloc_log_keys define to the new name. All old users will be gone after a few patches. [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32193a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_lookupChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32192a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_decrementChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32191a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] implement generic xfs_btree_incrementChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> Because this is the first major generic btree routine this patch includes some infrastrucure, first a few routines to deal with a btree block that can be either in short or long form, second xfs_btree_read_buf_block, which is the new central routine to read a btree block given a cursor, and third the new xfs_btree_ptr_addr routine to calculate the address for a given btree pointer record. [hch: split out from bigger patch and minor adaptions] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32190a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] add helpers for addressing entities inside a btree blockChristoph Hellwig
Add new helpers in xfs_btree.c to find the record, key and block pointer entries inside a btree block. To implement this genericly the ->get_maxrecs methods and two new xfs_btree_ops entries for the key and record sizes are used. Also add a big comment describing how the addressing inside a btree block works. Note that these helpers are unused until users are introduced in the next patches and this patch will thus cause some harmless compiler warnings. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32189a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] add get_maxrecs btree operationChristoph Hellwig
Factor xfs_btree_maxrecs into a per-btree operation. The get_maxrecs method is based on a patch from Dave Chinner. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32188a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] make btree tracing genericChristoph Hellwig
Make the existing bmap btree tracing generic so that it applies to all btree types. Some fragments lifted from a patch by Dave Chinner. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32187a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] add new btree statisticsDavid Chinner
From: Dave Chinner <dgc@sgi.com> Introduce statistics coverage of all the btrees and cover all the btree operations, not just some. Invaluable for determining test code coverage of all the btree operations.... SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32184a Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com>
2008-10-30[XFS] refactor btree validation helpersChristoph Hellwig
Move the various btree validation helpers around in xfs_btree.c so that they are close to each other and in common #ifdef DEBUG sections. Also add a new xfs_btree_check_ptr helper to check a btree ptr that can be either long or short form. Split out from a bigger patch from Dave Chinner with various small changes applied by me. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32183a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] refactor xfs_btree_readaheadChristoph Hellwig
From: Dave Chinner <dgc@sgi.com> Refactor xfs_btree_readahead to make it more readable: (a) remove the inline xfs_btree_readahead wrapper and move all checks out of line into the main routine. (b) factor out helpers for short/long form btrees (c) move check for root in inodes from the callers into xfs_btree_readahead [hch: split out from a big patch and minor cleanups] SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32182a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] add a long pointers flag to xfs_btree_curChristoph Hellwig
Add a flag to the xfs btree cursor when using long (64bit) block pointers instead of checking btnum == XFS_BTNUM_BMAP. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32181a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] make btree root in inode support genericChristoph Hellwig
The bmap btree is rooted in the inode and not in a disk block. Make the support for this feature more generic by adding a btree flag to for this feature instead of relying on the XFS_BTNUM_BMAP btnum check. Also clean up xfs_btree_get_block where this new flag is used. Based upon a patch from Dave Chinner. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32180a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] add generic btree typesChristoph Hellwig
Add generic union types for btree pointers, keys and records. The generic btree pointer contains either a 32 and 64bit big endian scalar for short and long form btrees, and the key and record contain the relevant type for each possible btree. Split out from a bigger patch from Dave Chinner and simplified a little further. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32178a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] split up xfs_btree_init_cursorChristoph Hellwig
xfs_btree_init_cursor contains close to little shared code for the different btrees and will get even more non-common code in the future. Split it up into one routine per btree type. Because xfs_btree_dup_cursor needs to call the init routine for a generic btree cursor add a new btree operation vector that contains a dup_cursor method that initializes a new cursor based on an existing one. The btree operations vector is based on an idea and code from Dave Chinner and will grow more entries later during this series. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32176a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] kill struct xfs_btree_hdrChristoph Hellwig
This type is only embedded in struct xfs_btree_block and never used directly. By moving the fields directly into struct xfs_btree_block a lot of the macros for struct xfs_btree_sblock and struct xfs_btree_lblock can be used for struct xfs_btree_block too now which helps greatly with some of the migrations during implementing the generic btree code. SGI-PV: 985583 SGI-Modid: xfs-linux-melb:xfs-kern:32174a Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Bill O'Donnell <billodo@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] Unlock inode before calling xfs_idestroy()Lachlan McIlroy
Lock debugging reported the ilock was being destroyed without being unlocked. We don't need to lock the inode until we are going to insert it into the radix tree. SGI-PV: 987246 SGI-Modid: xfs-linux-melb:xfs-kern:32159a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org>
2008-10-30[XFS] Fix use-after-free with log and quotasLachlan McIlroy
Destroying the quota stuff on unmount can access the log - ie XFS_QM_DONE() ends up in xfs_dqunlock() which calls xfs_trans_unlocked_item() and then xfs_log_move_tail(). By this time the log has already been destroyed. Just move the cleanup of the quota code earlier in xfs_unmountfs() before the call to xfs_log_unmount(). Moving XFS_QM_DONE() up near XFS_QM_DQPURGEALL() seems like a good spot. SGI-PV: 987086 SGI-Modid: xfs-linux-melb:xfs-kern:32148a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Peter Leckie <pleckie@sgi.com>
2008-10-30[XFS] Remove final remnants of dirv1 macros and other stuffBarry Naujok
SGI-PV: 981498 SGI-Modid: xfs-linux-melb:xfs-kern:32002a Signed-off-by: Barry Naujok <bnaujok@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-10-30[XFS] Use xfs_idestroy() to cleanup an inode.Lachlan McIlroy
SGI-PV: 981498 SGI-Modid: xfs-linux-melb:xfs-kern:31927a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: David Chinner <david@fromorbit.com>
2008-10-30[XFS] Remove kmem_zone_t argument from xfs_inode_init_once()Lachlan McIlroy
kmem cache constructor no longer takes a kmem_zone_t argument. SGI-PV: 957103 SGI-Modid: xfs-linux-melb:xfs-kern:32254a Signed-off-by: Lachlan McIlroy <lachlan@sgi.com>
2008-10-30[XFS] Make use of the init-once slab optimisation.David Chinner
To avoid having to initialise some fields of the XFS inode on every allocation, we can use the slab init-once feature to initialise them. All we have to guarantee is that when we free the inode, all it's entries are in the initial state. Add asserts where possible to ensure debug kernels check this initial state before freeing and after allocation. SGI-PV: 981498 SGI-Modid: xfs-linux-melb:xfs-kern:31925a Signed-off-by: David Chinner <david@fromorbit.com> Signed-off-by: Lachlan McIlroy <lachlan@sgi.com> Signed-off-by: Christoph Hellwig <hch@infradead.org>
2008-10-27Switch to a valid email address...Alan Cox
Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-26epoll: avoid double-inserts in case of EFAULTDavide Libenzi
In commit f337b9c58332bdecde965b436e47ea4c94d30da0 ("epoll: drop unnecessary test") Thomas found that there is an unnecessary (always true) test in ep_send_events(). The callback never inserts into ->rdllink while the send loop is performed, and also does the ~EP_PRIVATE_BITS test. Given we're holding the mutex during this time, the conditions tested inside the loop are always true. HOWEVER. The test "!ep_is_linked(&epi->rdllink)" wasn't there because we insert into ->rdllink, but because the send-events loop might terminate before the whole list is scanned (-EFAULT). In such cases, when the loop terminates early, and when a (leftover) file received an event while we're performing the lockless loop, we need such test to avoid to double insert the epoll items. The list_splice() done a few steps below, will correctly re-insert the ones that were left on "txlist". This should fix the kenrel.org bugzilla entry 11831. Signed-off-by: Davide Libenzi <davidel@xmailserver.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-26select: deal with math overflow from borderline valid userland dataArjan van de Ven
Some userland apps seem to pass in a "0" for the seconds, and several seconds worth of usecs to select(). The old kernels accepted this just fine, so the new kernels must too. However, due to the upscaling of the microseconds to nanoseconds we had some cases where we got math overflow, and depending on the GCC version (due to inlining decisions) that actually resulted in an -EINVAL return. This patch fixes this by adding the excess microseconds to the seconds field. Also with thanks to Marcin Slusarz for spotting some implementation bugs in the diagnostics patches. Reported-by: Carlos R. Mafra <crmafra2@gmail.com> Signed-off-by: Arjan van de Ven <arjan@linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-25ext4: Fix duplicate entries returned from getdents() system callTheodore Ts'o
Fix a regression caused by commit d0156417, "ext4: fix ext4_dx_readdir hash collision handling", where deleting files in a large directory (requiring more than one getdents system call), results in some filenames being returned twice. This was caused by a failure to update info->curr_hash and info->curr_minor_hash, so that if the directory had gotten modified since the last getdents() system call (as would be the case if the user is running "rm -r" or "git clean"), a directory entry would get returned twice to the userspace. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> This patch fixes the bug reported by Markus Trippelsdorf at: http://bugzilla.kernel.org/show_bug.cgi?id=11844 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
2008-10-25ext3: Fix duplicate entries returned from getdents() system callTheodore Ts'o
Fix a regression caused by commit 6a897cf4, "ext3: fix ext3_dx_readdir hash collision handling", where deleting files in a large directory (requiring more than one getdents system call), results in some filenames being returned twice. This was caused by a failure to update info->curr_hash and info->curr_minor_hash, so that if the directory had gotten modified since the last getdents() system call (as would be the case if the user is running "rm -r" or "git clean"), a directory entry would get returned twice to the userspace. This patch fixes the bug reported by Markus Trippelsdorf at: http://bugzilla.kernel.org/show_bug.cgi?id=11844 Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Tested-by: Markus Trippelsdorf <markus@trippelsdorf.de>
2008-10-23Merge branch 'proc' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc * 'proc' of git://git.kernel.org/pub/scm/linux/kernel/git/adobriyan/proc: (35 commits) proc: remove fs/proc/proc_misc.c proc: move /proc/vmcore creation to fs/proc/vmcore.c proc: move pagecount stuff to fs/proc/page.c proc: move all /proc/kcore stuff to fs/proc/kcore.c proc: move /proc/schedstat boilerplate to kernel/sched_stats.h proc: move /proc/modules boilerplate to kernel/module.c proc: move /proc/diskstats boilerplate to block/genhd.c proc: move /proc/zoneinfo boilerplate to mm/vmstat.c proc: move /proc/vmstat boilerplate to mm/vmstat.c proc: move /proc/pagetypeinfo boilerplate to mm/vmstat.c proc: move /proc/buddyinfo boilerplate to mm/vmstat.c proc: move /proc/vmallocinfo to mm/vmalloc.c proc: move /proc/slabinfo boilerplate to mm/slub.c, mm/slab.c proc: move /proc/slab_allocators boilerplate to mm/slab.c proc: move /proc/interrupts boilerplate code to fs/proc/interrupts.c proc: move /proc/stat to fs/proc/stat.c proc: move rest of /proc/partitions code to block/genhd.c proc: move /proc/cpuinfo code to fs/proc/cpuinfo.c proc: move /proc/devices code to fs/proc/devices.c proc: move rest of /proc/locks to fs/locks.c ...
2008-10-23ext4: remove unused variable in ext4_get_parentChristoph Hellwig
Signed-off-by: Christoph Hellwig <hch@lst.de> [ All users removed in "switch all filesystems over to d_obtain_alias", aka commit 440037287c5ebb07033ab927ca16bb68c291d309 ] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-23ext3 quota support: fix compile failureLinus Torvalds
This one was due to a merge error: we added a use of nd.path in commit 2d7c820e56ce83b23daee9eb5343730fb309418e ("ext3: add checks for errors from jbd"), and concurrently we got rid of 'nd' and used a naked 'path' in commit 8264613def2e5c4f12bc3167713090fd172e6055 ("[PATCH] switch quota_on-related stuff to kern_path()"). That all merged cleanly, but it didn't actually _work_. This should fix it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-23Merge branch 'v28-range-hrtimers-for-linus-v2' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip * 'v28-range-hrtimers-for-linus-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (37 commits) hrtimers: add missing docbook comments to struct hrtimer hrtimers: simplify hrtimer_peek_ahead_timers() hrtimers: fix docbook comments DECLARE_PER_CPU needs linux/percpu.h hrtimers: fix typo rangetimers: fix the bug reported by Ingo for real rangetimer: fix BUG_ON reported by Ingo rangetimer: fix x86 build failure for the !HRTIMERS case select: fix alpha OSF wrapper select: fix alpha OSF wrapper hrtimer: peek at the timer queue just before going idle hrtimer: make the futex() system call use the per process slack value hrtimer: make the nanosleep() syscall use the per process slack hrtimer: fix signed/unsigned bug in slack estimator hrtimer: show the timer ranges in /proc/timer_list hrtimer: incorporate feedback from Peter Zijlstra hrtimer: add a hrtimer_start_range() function hrtimer: another build fix hrtimer: fix build bug found by Ingo hrtimer: make select() and poll() use the hrtimer range feature ...
2008-10-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6Linus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: cifs: handle the TCP_Server_Info->tsk field more carefully cifs: fix unlinking of rename target when server doesn't support open file renames [CIFS] improve setlease handling [CIFS] fix saving of resume key before CIFSFindNext cifs: make cifs_rename handle -EACCES errors [CIFS] fix build error [CIFS] undo changes in cifs_rename_pending_delete if it errors out cifs: track DeletePending flag in cifsInodeInfo cifs: don't use CREATE_DELETE_ON_CLOSE in cifs_rename_pending_delete [CIFS] eliminate usage of kthread_stop for cifsd [CIFS] Add nodfs mount option
2008-10-23Merge git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdevLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/viro/bdev: (66 commits) [PATCH] kill the rest of struct file propagation in block ioctls [PATCH] get rid of struct file use in blkdev_ioctl() BLKBSZSET [PATCH] get rid of blkdev_locked_ioctl() [PATCH] get rid of blkdev_driver_ioctl() [PATCH] sanitize blkdev_get() and friends [PATCH] remember mode of reiserfs journal [PATCH] propagate mode through swsusp_close() [PATCH] propagate mode through open_bdev_excl/close_bdev_excl [PATCH] pass fmode_t to blkdev_put() [PATCH] kill the unused bsize on the send side of /dev/loop [PATCH] trim file propagation in block/compat_ioctl.c [PATCH] end of methods switch: remove the old ones [PATCH] switch sr [PATCH] switch sd [PATCH] switch ide-scsi [PATCH] switch tape_block [PATCH] switch dcssblk [PATCH] switch dasd [PATCH] switch mtd_blkdevs [PATCH] switch mmc ...
2008-10-23Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (46 commits) [PATCH] fs: add a sanity check in d_free [PATCH] i_version: remount support [patch] vfs: make security_inode_setattr() calling consistent [patch 1/3] FS_MBCACHE: don't needlessly make it built-in [PATCH] move executable checking into ->permission() [PATCH] fs/dcache.c: update comment of d_validate() [RFC PATCH] touch_mnt_namespace when the mount flags change [PATCH] reiserfs: add missing llseek method [PATCH] fix ->llseek for more directories [PATCH vfs-2.6 6/6] vfs: add LOOKUP_RENAME_TARGET intent [PATCH vfs-2.6 5/6] vfs: remove LOOKUP_PARENT from non LOOKUP_PARENT lookup [PATCH vfs-2.6 4/6] vfs: remove unnecessary fsnotify_d_instantiate() [PATCH vfs-2.6 3/6] vfs: add __d_instantiate() helper [PATCH vfs-2.6 2/6] vfs: add d_ancestor() [PATCH vfs-2.6 1/6] vfs: replace parent == dentry->d_parent by IS_ROOT() [PATCH] get rid of on-stack dentry in udf [PATCH 2/2] anondev: switch to IDA [PATCH 1/2] anondev: init IDR statically [JFFS2] Use d_splice_alias() not d_add() in jffs2_lookup() [PATCH] Optimise NFS readdir hack slightly. ...
2008-10-23Merge branch 'for-linus' of ↵Linus Torvalds
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 sparse warnings 9p: rdma: RDMA Transport Support for 9P 9p: fix format warning 9p: fix debug build error
2008-10-23Merge branch 'for-2.6.28' of git://linux-nfs.org/~bfields/linuxLinus Torvalds
* 'for-2.6.28' of git://linux-nfs.org/~bfields/linux: nfsd: clean up expkey_parse error cases nfsd: Drop reference in expkey_parse error cases nfsd: Fix memory leak in nfsd_getxattr NFSD: Fix BUG during NFSD shutdown processing
2008-10-23jbd: abort instead of waiting for nonexistent transactionsDuane Griffin
The __log_wait_for_space function sits in a loop checkpointing transactions until there is sufficient space free in the journal. However, if there are no transactions to be processed (e.g. because the free space calculation is wrong due to a corrupted filesystem) it will never progress. Check for space being required when no transactions are outstanding and abort the journal instead of endlessly looping. This patch fixes the bug reported by Sami Liedes at: http://bugzilla.kernel.org/show_bug.cgi?id=10976 Signed-off-by: Duane Griffin <duaneg@dghda.com> Tested-by: Sami Liedes <sliedes@cc.hut.fi> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-23jbd: test BH_Write_EIO to detect errors on metadata buffersHidehiro Kawai
__try_to_free_cp_buf(), __process_buffer(), and __wait_cp_io() test BH_Uptodate flag to detect write I/O errors on metadata buffers. But by commit 95450f5a7e53d5752ce1a0d0b8282e10fe745ae0 "ext3: don't read inode block if the buffer has a write error"(*), BH_Uptodate flag can be set to inode buffers with BH_Write_EIO in order to avoid reading old inode data. So now, we have to test BH_Write_EIO flag of checkpointing inode buffers instead of BH_Uptodate. This patch does it. Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Acked-by: Jan Kara <jack@suse.cz> Acked-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-23ext3: add checks for errors from jbdHidehiro Kawai
If the journal has aborted due to a checkpointing failure, we have to keep the contents of the journal space. Otherwise, the filesystem will lose uncheckpointed metadata completely and become inconsistent. To avoid this, we need to keep needs_recovery flag if checkpoint has failed. With this patch, ext3_put_super() detects a checkpointing failure from the return value of journal_destroy(), then it invokes ext3_abort() to make the filesystem read only and keep needs_recovery flag. Errors from journal_flush() are also handled by this patch in some places. Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Cc: Jan Kara <jack@ucw.cz> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-23jbd: fix error handling for checkpoint ioHidehiro Kawai
When a checkpointing IO fails, current JBD code doesn't check the error and continue journaling. This means latest metadata can be lost from both the journal and filesystem. This patch leaves the failed metadata blocks in the journal space and aborts journaling in the case of log_do_checkpoint(). To achieve this, we need to do: 1. don't remove the failed buffer from the checkpoint list where in the case of __try_to_free_cp_buf() because it may be released or overwritten by a later transaction 2. log_do_checkpoint() is the last chance, remove the failed buffer from the checkpoint list and abort the journal 3. when checkpointing fails, don't update the journal super block to prevent the journaled contents from being cleaned. For safety, don't update j_tail and j_tail_sequence either 4. when checkpointing fails, notify this error to the ext3 layer so that ext3 don't clear the needs_recovery flag, otherwise the journaled contents are ignored and cleaned in the recovery phase 5. if the recovery fails, keep the needs_recovery flag 6. prevent cleanup_journal_tail() from being called between __journal_drop_transaction() and journal_abort() (a race issue between journal_flush() and __log_wait_for_space() Signed-off-by: Hidehiro Kawai <hidehiro.kawai.ez@hitachi.com> Acked-by: Jan Kara <jack@suse.cz> Cc: <linux-ext4@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-23proc: remove fs/proc/proc_misc.cAlexey Dobriyan
Now that everything was moved to their more or less expected places, apply rm(1). Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
2008-10-23proc: move /proc/vmcore creation to fs/proc/vmcore.cAlexey Dobriyan
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>