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* mm: merge populate and nopage into fault (fixes nonlinear)Nick Piggin2007-07-197-52/+53
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Nonlinear mappings are (AFAIKS) simply a virtual memory concept that encodes the virtual address -> file offset differently from linear mappings. ->populate is a layering violation because the filesystem/pagecache code should need to know anything about the virtual memory mapping. The hitch here is that the ->nopage handler didn't pass down enough information (ie. pgoff). But it is more logical to pass pgoff rather than have the ->nopage function calculate it itself anyway (because that's a similar layering violation). Having the populate handler install the pte itself is likewise a nasty thing to be doing. This patch introduces a new fault handler that replaces ->nopage and ->populate and (later) ->nopfn. Most of the old mechanism is still in place so there is a lot of duplication and nice cleanups that can be removed if everyone switches over. The rationale for doing this in the first place is that nonlinear mappings are subject to the pagefault vs invalidate/truncate race too, and it seemed stupid to duplicate the synchronisation logic rather than just consolidate the two. After this patch, MAP_NONBLOCK no longer sets up ptes for pages present in pagecache. Seems like a fringe functionality anyway. NOPAGE_REFAULT is removed. This should be implemented with ->fault, and no users have hit mainline yet. [akpm@linux-foundation.org: cleanup] [randy.dunlap@oracle.com: doc. fixes for readahead] [akpm@linux-foundation.org: build fix] Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Randy Dunlap <randy.dunlap@oracle.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>
* mm: fix fault vs invalidate race for linear mappingsNick Piggin2007-07-195-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix the race between invalidate_inode_pages and do_no_page. Andrea Arcangeli identified a subtle race between invalidation of pages from pagecache with userspace mappings, and do_no_page. The issue is that invalidation has to shoot down all mappings to the page, before it can be discarded from the pagecache. Between shooting down ptes to a particular page, and actually dropping the struct page from the pagecache, do_no_page from any process might fault on that page and establish a new mapping to the page just before it gets discarded from the pagecache. The most common case where such invalidation is used is in file truncation. This case was catered for by doing a sort of open-coded seqlock between the file's i_size, and its truncate_count. Truncation will decrease i_size, then increment truncate_count before unmapping userspace pages; do_no_page will read truncate_count, then find the page if it is within i_size, and then check truncate_count under the page table lock and back out and retry if it had subsequently been changed (ptl will serialise against unmapping, and ensure a potentially updated truncate_count is actually visible). Complexity and documentation issues aside, the locking protocol fails in the case where we would like to invalidate pagecache inside i_size. do_no_page can come in anytime and filemap_nopage is not aware of the invalidation in progress (as it is when it is outside i_size). The end result is that dangling (->mapping == NULL) pages that appear to be from a particular file may be mapped into userspace with nonsense data. Valid mappings to the same place will see a different page. Andrea implemented two working fixes, one using a real seqlock, another using a page->flags bit. He also proposed using the page lock in do_no_page, but that was initially considered too heavyweight. However, it is not a global or per-file lock, and the page cacheline is modified in do_no_page to increment _count and _mapcount anyway, so a further modification should not be a large performance hit. Scalability is not an issue. This patch implements this latter approach. ->nopage implementations return with the page locked if it is possible for their underlying file to be invalidated (in that case, they must set a special vm_flags bit to indicate so). do_no_page only unlocks the page after setting up the mapping completely. invalidation is excluded because it holds the page lock during invalidation of each page (and ensures that the page is not mapped while holding the lock). This also allows significant simplifications in do_no_page, because we have the page locked in the right place in the pagecache from the start. Signed-off-by: Nick Piggin <npiggin@suse.de> 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 Torvalds2007-07-1838-3156/+3440
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6: (24 commits) [CIFS] merge conflict in fs/cifs/export.c [CIFS] Allow disabling CIFS Unix Extensions as mount option [CIFS] More whitespace/formatting fixes (noticed by checkpatch) [CIFS] Typo in previous patch [CIFS] zero_user_page() conversions [CIFS] use simple_prepare_write to zero page data [CIFS] Fix build break - inet.h not included when experimental ifdef off [CIFS] Add support for new POSIX unlink [CIFS] whitespace/formatting fixes [CIFS] Fix oops in cifs_create when nfsd server exports cifs mount [CIFS] whitespace cleanup [CIFS] Fix packet signatures for NTLMv2 case [CIFS] more whitespace fixes [CIFS] more whitespace cleanup [CIFS] whitespace cleanup [CIFS] whitespace cleanup [CIFS] ipv6 support no longer experimental [CIFS] Mount should fail if server signing off but client mount option requires it [CIFS] whitespace fixes [CIFS] Fix sign mount option and sign proc config setting ...
| * Merge branch 'master' of /pub/scm/linux/kernel/git/torvalds/linux-2.6Steve French2007-07-19416-13374/+20865
| |\ | | | | | | | | | | | | | | | Conflicts: fs/cifs/export.c
| * | [CIFS] merge conflict in fs/cifs/export.cSteve French2007-07-191-0/+1
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Allow disabling CIFS Unix Extensions as mount optionSteve French2007-07-189-46/+65
| | | | | | | | | | | | | | | | | | | | | | | | | | | Previously the only way to do this was to umount all mounts to that server, turn off a proc setting (/proc/fs/cifs/LinuxExtensionsEnabled). Fixes Samba bugzilla bug number: 4582 (and also 2008) Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] More whitespace/formatting fixes (noticed by checkpatch)Steve French2007-07-1710-46/+88
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Typo in previous patchSteve French2007-07-161-2/+1
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] zero_user_page() conversionsEric2007-07-161-4/+1
| | | | | | | | | | | | | | | | | | Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] use simple_prepare_write to zero page dataNate2007-07-161-8/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It's common for file systems to need to zero data on either side of a write, if a page is not Uptodate during prepare_write. It just so happens that simple_prepare_write() in libfs.c does exactly that, so we can avoid duplication and just call that function to zero page data. Signed-off-by: Nate Diller <nate.diller@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Fix build break - inet.h not included when experimental ifdef offSteve French2007-07-151-2/+0
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Add support for new POSIX unlinkSteve French2007-07-155-11/+103
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the cleanup phase of the dbench test, we were noticing sharing violation followed by failed directory removals when dbench did not close the test files before the cleanup phase started. Using the new POSIX unlink, which Samba has supported for a few months, avoids this. Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] whitespace/formatting fixesSteve French2007-07-1327-1160/+1285
| | | | | | | | | | | | | | | | | | | | | | | | | | | This should be the last big batch of whitespace/formatting fixes. checkpatch warnings for the cifs directory are down about 90% and many of the remaining ones are harder to remove or make the code harder to read. Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Fix oops in cifs_create when nfsd server exports cifs mountSteve French2007-07-116-14/+33
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | nfsd is passing null nameidata (probably the only one doing that) on call to create - cifs was missing one check for this. Note that running nfsd over a cifs mount requires specifying fsid on the nfs exports entry and requires mounting cifs with serverino mount option. Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] whitespace cleanupSteve French2007-07-1012-591/+610
| | | | | | | | | | | | | | | | | | More than halfway there Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Fix packet signatures for NTLMv2 caseSteve French2007-07-098-36/+71
| | | | | | | | | | | | | | | Signed-off-by: Yehuda Sadeh Weinraub <Yehuda.Sadeh@expand.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] more whitespace fixesSteve French2007-07-084-137/+141
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] more whitespace cleanupSteve French2007-07-077-538/+544
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] whitespace cleanupSteve French2007-07-066-46/+48
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] whitespace cleanupSteve French2007-07-063-228/+232
| | | | | | | | | | | | | | | | | | checkpatch.pl redux Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] ipv6 support no longer experimentalJeff2007-07-062-62/+1
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Mount should fail if server signing off but client mount option ↵Jeff2007-07-062-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | requires it Currently, if mount with a signing-enabled sec= option (e.g. sec=ntlmi), the kernel does a warning printk if the server doesn't support signing, and then proceeds without signatures. This is probably OK for people that think to look at the ring buffer, but seems wrong to me. If someone explicitly requests signing, we should error out if that request can't be satisfied. They can then reattempt the mount without signing if that's ok. Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] whitespace fixesSteve French2007-06-286-106/+108
| | | | | | | | | | | | | | | | | | This changeset brought to you ... by patchcheck.pl Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Fix sign mount option and sign proc config settingSteve French2007-06-282-95/+29
| | | | | | | | | | | | | | | | | | | | | | | | | | | We were checking the wrong (old) global variable to determine whether to override server and force signing on the SMB connection. Acked-by: Dave Kleikamp <shaggy@austin.ibm.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] whitespace cleanupSteve French2007-06-271-26/+27
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Do not allow signals in cifs_demultiplex_threadJeff2007-06-251-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | Switch from send_sig to force_sig and do not allow signal for this background thread (the signal is needed to wakeup the thread when blocked in the network stack). Signed-off-by: Jeff Layton <jlayton@readhat.com> Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] fix whitespaceSteve French2007-06-242-56/+58
| | | | | | | | | | | | | | | | | | More whitespace problems found by checkpatch Signed-off-by: Steve French <sfrench@us.ibm.com>
| * | [CIFS] Add in some missing flags and cifs README and TODO correctionsSteve French2007-06-246-29/+80
| | | | | | | | | | | | Signed-off-by: Steve French <sfrench@us.ibm.com>
* | | Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6Linus Torvalds2007-07-187-31/+33
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6: sysfs: cosmetic clean up on node creation failure paths sysfs: kill an extra put in sysfs_create_link() failure path Driver core: check return code of sysfs_create_link() HOWTO: Add the knwon_regression URI to the documentation dev_vdbg() documentation dev_vdbg(), available with -DVERBOSE_DEBUG sysfs: make sysfs_init_inode() static sysfs: fix sysfs root inode nlink accounting Documentation fix devres.txt: lib/iomap.c -> lib/devres.c sysfs: avoid kmem_cache_free(NULL) PM: remove deprecated dpm_runtime_* routines PM: Remove deprecated sysfs files Driver core: accept all valid action-strings in uevent-trigger debugfs: remove rmdir() non-empty complaint
| * | | sysfs: cosmetic clean up on node creation failure pathsTejun Heo2007-07-183-13/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Node addition failure is detected by testing return value of sysfs_addfm_finish() which returns the number of added and removed nodes. As the function is called as the last step of addition right on top of error handling block, the if blocks looked like the following. if (sysfs_addrm_finish(&acxt)) success handling, usually return; /* fall through to error handling */ This is the opposite of usual convention in sysfs and makes the code difficult to understand. This patch inverts the test and makes those blocks look more like others. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Gabriel C <nix.or.die@googlemail.com> Cc: Miles Lane <miles.lane@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | sysfs: kill an extra put in sysfs_create_link() failure pathTejun Heo2007-07-181-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | There is a subtle bug in sysfs_create_link() failure path. When symlink creation fails because there's already a node with the same name, the target sysfs_dirent is put twice - once by failure path of sysfs_create_link() and once more when the symlink is released. Fix it by making only the symlink node responsible for putting target_sd. Signed-off-by: Tejun Heo <htejun@gmail.com> Cc: Gabriel C <nix.or.die@googlemail.com> Cc: Miles Lane <miles.lane@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | sysfs: make sysfs_init_inode() staticTejun Heo2007-07-182-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | With sysfs_fill_super() converted to use sysfs_get_inode(), there is no user of sysfs_init_inode() outside of fs/sysfs/inode.c. Make it static. Signed-off-by: Tejun Heo <htejun@gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | sysfs: fix sysfs root inode nlink accountingTejun Heo2007-07-181-5/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | While making sysfs indoes hashed, sysfs root inode was left out. Now that nlink accounting depends on the inode being on the hash, sysfs root inode nlink isn't adjusted properly. Put sysfs root inode on the inode hash by allocating it using sysfs_get_inode() like other sysfs inodes. While at it, massage comments a bit. Signed-off-by: Tejun Heo <htejun@gmail.com> Acked-by: Jean Delvare <khali@linux-fr.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | sysfs: avoid kmem_cache_free(NULL)Akinobu Mita2007-07-181-6/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | kmem_cache_free() with NULL is not allowed. But it may happen if out of memory error is triggered in sysfs_new_dirent(). This patch fixes that error handling. Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| * | | debugfs: remove rmdir() non-empty complaintJens Axboe2007-07-181-5/+0
| | |/ | |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Hi, This patch kills the pointless debugfs rmdir() printk() when called on a non-empty directory. blktrace will sometimes have to call it a few times when forcefully ending a trace, which polutes the log with pointless warnings. Rationale: - It's more code to work-around this "problem" in the debugfs users, and you would have to add code to check for empty directories to do so (or assume that debugfs is using simple_ helpers, but that would be a layering violation). - Other rmdir() implementations don't complain about something this silly. Signed-off-by: Jens Axboe <jens.axboe@oracle.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | | Merge branch 'for-linus' of git://linux-nfs.org/~bfields/linuxLinus Torvalds2007-07-184-61/+101
|\ \ \ | |/ / |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://linux-nfs.org/~bfields/linux: locks: fix vfs_test_lock() comment locks: make posix_test_lock() interface more consistent nfs: disable leases over NFS gfs2: stop giving out non-cluster-coherent leases locks: export setlease to filesystems locks: provide a file lease method enabling cluster-coherent leases locks: rename lease functions to reflect locks.c conventions locks: share more common lease code locks: clean up lease_alloc() locks: convert an -EINVAL return to a BUG leases: minor break_lease() comment clarification
| * | locks: fix vfs_test_lock() commentJ. Bruce Fields2007-07-181-2/+1
| | | | | | | | | | | | | | | | | | | | | Thanks to Doug Chapman for pointing out that the comment here is inconsistent with the function prototype. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
| * | locks: make posix_test_lock() interface more consistentJ. Bruce Fields2007-07-182-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | Since posix_test_lock(), like fcntl() and ->lock(), indicates absence or presence of a conflict lock by setting fl_type to, respectively, F_UNLCK or something other than F_UNLCK, the return value is no longer needed. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
| * | nfs: disable leases over NFSJ. Bruce Fields2007-07-181-0/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As Peter Staubach says elsewhere (http://marc.info/?l=linux-kernel&m=118113649526444&w=2): > The problem is that some file system such as NFSv2 and NFSv3 do > not have sufficient support to be able to support leases correctly. > In particular for these two file systems, there is no over the wire > protocol support. > > Currently, these two file systems fail the fcntl(F_SETLEASE) call > accidentally, due to a reference counting difference. These file > systems should fail more consciously, with a proper error to > indicate that the call is invalid for them. Define an nfs setlease method that just returns -EINVAL. If someone can demonstrate a real need, perhaps we could reenable them in the presence of the "nolock" mount option. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Cc: Peter Staubach <staubach@redhat.com> Cc: Trond Myklebust <Trond.Myklebust@netapp.com>
| * | gfs2: stop giving out non-cluster-coherent leasesMarc Eshel2007-07-181-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since gfs2 can't prevent conflicting opens or leases on other nodes, we probably shouldn't allow it to give out leases at all. Put the newly defined lease operation into use in gfs2 by turning off lease, unless we're using the "nolock' locking module (in which case all locking is local anyway). Signed-off-by: Marc Eshel <eshel@almaden.ibm.com> Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu> Cc: Steven Whitehouse <swhiteho@redhat.com>
| * | locks: export setlease to filesystemsJ. Bruce Fields2007-07-181-1/+2
| | | | | | | | | | | | | | | | | | | | | Export setlease so it can used by filesystems to implement their lease methods. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
| * | locks: provide a file lease method enabling cluster-coherent leasesJ. Bruce Fields2007-07-181-2/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Currently leases are only kept locally, so there's no way for a distributed filesystem to enforce them against multiple clients. We're particularly interested in the case of nfsd exporting a cluster filesystem, in which case nfsd needs cluster-coherent leases in order to implement delegations correctly. Also add some documentation. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | locks: rename lease functions to reflect locks.c conventionsJ. Bruce Fields2007-07-182-13/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We've been using the convention that vfs_foo is the function that calls a filesystem-specific foo method if it exists, or falls back on a generic method if it doesn't; thus vfs_foo is what is called when some other part of the kernel (normally lockd or nfsd) wants to get a lock, whereas foo is what filesystems call to use the underlying local functionality as part of their lock implementation. So rename setlease to vfs_setlease (which will call a filesystem-specific setlease after a later patch) and __setlease to setlease. Also, vfs_setlease need only be GPL-exported as long as it's only needed by lockd and nfsd. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
| * | locks: share more common lease codeJ. Bruce Fields2007-07-181-20/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | Share more code between setlease (used by nfsd) and fcntl. Also some minor cleanup. Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu> Acked-by: Christoph Hellwig <hch@infradead.org>
| * | locks: clean up lease_alloc()J. Bruce Fields2007-07-181-12/+9
| | | | | | | | | | | | | | | | | | | | | Return the newly allocated structure as the return value instead of using a struct ** parameter. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | locks: convert an -EINVAL return to a BUGJ. Bruce Fields2007-07-181-3/+1
| | | | | | | | | | | | | | | | | | | | | There's no point trying to return an error in these cases, which all represent bugs in the callers. Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
| * | leases: minor break_lease() comment clarificationdavid m. richter2007-07-181-3/+3
| | | | | | | | | | | | | | | | | | | | | clarify that break_lease() checks for presence of any lock, not just leases. Signed-off-by: David M. Richter <richterd@citi.umich.edu> Signed-off-by: "J. Bruce Fields" <bfields@citi.umich.edu>
* | | Merge branch 'for_linus' of ↵Linus Torvalds2007-07-1814-248/+1143
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: extent macros cleanup Fix compilation with EXT_DEBUG, also fix leXX_to_cpu conversions. ext4: remove extra IS_RDONLY() check ext4: Use is_power_of_2() Use zero_user_page() in ext4 where possible ext4: Remove 65000 subdirectory limit ext4: Expand extra_inodes space per the s_{want,min}_extra_isize fields ext4: Add nanosecond timestamps jbd2: Move jbd2-debug file to debugfs jbd2: Fix CONFIG_JBD_DEBUG ifdef to be CONFIG_JBD2_DEBUG ext4: Set the journal JBD2_FEATURE_INCOMPAT_64BIT on large devices ext4: Make extents code sanely handle on-disk corruption ext4: copy i_flags to inode flags on write ext4: Enable extents by default Change on-disk format to support 2^15 uninitialized extents write support for preallocated blocks fallocate support in ext4 sys_fallocate() implementation on i386, x86_64 and powerpc
| * | | ext4: extent macros cleanupDmitry Monakhov2007-07-181-4/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the EXT_LAST_INDEX macro; that's what it's there for. Clean up ext4_ext_ext_grow_indepth() so the correct EXT_FIRST_INDEX or EXT_FIRST_MACRO is used as necessary. The two macros are equivalent, so the C will collapse the if statement out, but it makes the code much more readable. Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Acked-by: Alex Tomas <alex@clusterfs.com> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Singed-off-by: Mingming Cao <cmm@us.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | Fix compilation with EXT_DEBUG, also fix leXX_to_cpu conversions.Dmitry Monakhov2007-07-181-8/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Acked-by: Alex Tomas <alex@clusterfs.com> Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>