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* tracing/events: Move TRACE_SYSTEM outside of include guardLi Zefan2009-07-131-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | If TRACE_INCLDUE_FILE is defined, <trace/events/TRACE_INCLUDE_FILE.h> will be included and compiled, otherwise it will be <trace/events/TRACE_SYSTEM.h> So TRACE_SYSTEM should be defined outside of #if proctection, just like TRACE_INCLUDE_FILE. Imaging this scenario: #include <trace/events/foo.h> -> TRACE_SYSTEM == foo ... #include <trace/events/bar.h> -> TRACE_SYSTEM == bar ... #define CREATE_TRACE_POINTS #include <trace/events/foo.h> -> TRACE_SYSTEM == bar !!! and then bar.h will be included and compiled. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <4A5A9CF1.2010007@cn.fujitsu.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
* block: rename CONFIG_LBD to CONFIG_LBDAFBartlomiej Zolnierkiewicz2009-06-191-1/+1
| | | | | | | | | | | | Follow-up to "block: enable by default support for large devices and files on 32-bit archs". Rename CONFIG_LBD to CONFIG_LBDAF to: - allow update of existing [def]configs for "default y" change - reflect that it is used also for large files support nowadays Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* GFS2: Remove lock_kernel from gfs2_put_super()Steven Whitehouse2009-06-121-4/+0
| | | | | | | It is not required here. Signed-off-by: Steven Whitehouse <swhiteho@redhat,com> Cc: Christoph Hellwig <hch@infradead.org>
* GFS2: Add tracepointsSteven Whitehouse2009-06-128-6/+442
| | | | | | | | | | | This patch adds the ability to trace various aspects of the GFS2 filesystem. The trace points are divided into three groups, glocks, logging and bmap. These points have been chosen because they allow inspection of the major internal functions of GFS2 and they are also generic enough that they are unlikely to need any major changes as the filesystem evolves. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* push BKL down into ->put_superChristoph Hellwig2009-06-111-0/+4
| | | | | | | | | | | | | | | | | Move BKL into ->put_super from the only caller. A couple of filesystems had trivial enough ->put_super (only kfree and NULLing of s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs, hugetlbfs, omfs, qnx4, shmem, all others got the full treatment. Most of them probably don't need it, but I'd rather sort that out individually. Preferably after all the other BKL pushdowns in that area. [AV: original used to move lock_super() down as well; these changes are removed since we don't do lock_super() at all in generic_shutdown_super() now] [AV: fuse, btrfs and xfs are known to need no damn BKL, exempt] Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* gfs2: remove ->write_super and stop maintaining ->s_dirtChristoph Hellwig2009-06-112-15/+0
| | | | | | Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'for-2.6.31' of git://git.kernel.dk/linux-2.6-blockLinus Torvalds2009-06-112-3/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-2.6.31' of git://git.kernel.dk/linux-2.6-block: (153 commits) block: add request clone interface (v2) floppy: fix hibernation ramdisk: remove long-deprecated "ramdisk=" boot-time parameter fs/bio.c: add missing __user annotation block: prevent possible io_context->refcount overflow Add serial number support for virtio_blk, V4a block: Add missing bounce_pfn stacking and fix comments Revert "block: Fix bounce limit setting in DM" cciss: decode unit attention in SCSI error handling code cciss: Remove no longer needed sendcmd reject processing code cciss: change SCSI error handling routines to work with interrupts enabled. cciss: separate error processing and command retrying code in sendcmd_withirq_core() cciss: factor out fix target status processing code from sendcmd functions cciss: simplify interface of sendcmd() and sendcmd_withirq() cciss: factor out core of sendcmd_withirq() for use by SCSI error handling code cciss: Use schedule_timeout_uninterruptible in SCSI error handling code block: needs to set the residual length of a bidi request Revert "block: implement blkdev_readpages" block: Fix bounce limit setting in DM Removed reference to non-existing file Documentation/PCI/PCI-DMA-mapping.txt ... Manually fix conflicts with tracing updates in: block/blk-sysfs.c drivers/ide/ide-atapi.c drivers/ide/ide-cd.c drivers/ide/ide-floppy.c drivers/ide/ide-tape.c include/trace/events/block.h kernel/trace/blktrace.c
| * block: Do away with the notion of hardsect_sizeMartin K. Petersen2009-05-222-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Until now we have had a 1:1 mapping between storage device physical block size and the logical block sized used when addressing the device. With SATA 4KB drives coming out that will no longer be the case. The sector size will be 4KB but the logical block size will remain 512-bytes. Hence we need to distinguish between the physical block size and the logical ditto. This patch renames hardsect_size to logical_block_size. Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* | GFS2: Merge gfs2_get_sb into gfs2_get_sb_metaSteven Whitehouse2009-06-101-12/+4
| | | | | | | | | | | | | | These don't need to be separate functions. Reported-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Fix cache coherency between truncate and O_DIRECT readSteven Whitehouse2009-06-101-1/+1
| | | | | | | | | | | | | | | | | | If a page was partially zeroed as the result of a truncate, then it was not being correctly marked dirty. This resulted in the deleted data reappearing if the file was read back via direct I/O. Reported-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Fix locking issue mounting gfs2meta fsSteven Whitehouse2009-06-051-14/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch uses sget() to get a reference to the existing gfs2 sb when mouting the gfs2meta filesystem (in fact thats just another mount of the gfs2 filesystem with a different root and this interface is for backward compatibility). Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Reported-by: Benjamin Marzinski <bmarzins@redhat.com> Tested-by: Benjamin Marzinski <bmarzins@redhat.com> Cc: Christoph Hellwig <hch@infradead.org>
* | GFS2: Remove unused variableSteven Whitehouse2009-06-031-2/+0
| | | | | | | | Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: smbd proccess hangs with flock() call.Abhijith Das2009-06-021-2/+2
| | | | | | | | | | | | | | | | | | GFS2 currently does not support mandatory flocks. An flock() call with LOCK_MAND triggers unexpected behavior because gfs2 is not checking for this lock type. This patch corrects that. Signed-off-by: Abhi Das <adas@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Remove args subdir from gfs2 sysfs filesSteven Whitehouse2009-05-261-51/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since we can cat /proc/mounts there is no need to have this subdirectory in the gfs2 sysfs files. In fact this does not reflect the full range of possible mount argumenmts, where as /proc/mounts does. There was only one userland user of this set of sysfs files and it will function perfectly well without these files being present (in fact that subcommand of gfs2_tool is obsolete anyway). The tune/* subdirectory is also considered mostly obsolete, but there are a few uses of this until mount arguments can be added for the last few functions for which there are no equivalents currently. However the tune/* directory is still in my sights and new code should avoid using it. Only the gfs2_quota and gfs2_tool programs are know to use tune/* at the moment. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Remove lockstruct subdir from gfs2 sysfs filesSteven Whitehouse2009-05-261-33/+8
| | | | | | | | | | | | | | | | | | The lockstruct sub directory contained two entries, both of which are duplicated elsewhere in the gfs2 sysfs files as well as being available via /proc/mounts. There is no userland program using either of them, so this patch removes them. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Move gfs2_unlink_ok into ops_inode.cSteven Whitehouse2009-05-223-41/+38
| | | | | | | | | | | | | | Another function which is only called from one ops_inode.c so we move it and make it static. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Move gfs2_readlinki into ops_inode.cSteven Whitehouse2009-05-223-58/+56
| | | | | | | | | | | | Move gfs2_readlinki into ops_inode.c and make it static Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Move gfs2_rmdiri into ops_inode.cSteven Whitehouse2009-05-223-54/+53
| | | | | | | | | | | | Move gfs2_rmdiri() into ops_inode.c and make it static. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Merge mount.c and ops_super.c into super.cSteven Whitehouse2009-05-224-956/+903
| | | | | | | | | | | | | | | | mount.c only contained a single function, so is not really worth retaining on its own. All of the super related code is now either in super.c or ops_fstype.c Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Clean up some file namesSteven Whitehouse2009-05-2212-55/+34
| | | | | | | | | | | | | | | | | | | | This patch renames the ops_*.c files which have no counterpart without the ops_ prefix in order to shorten the name and make it more readable. In addition, ops_address.h (which was very small) is moved into inode.h and inode.h is cleaned up by adding extern where required. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Be more aggressive in reclaiming unlinked inodesSteven Whitehouse2009-05-212-3/+4
| | | | | | | | | | | | | | | | | | | | | | This patch increases the frequency with which gfs2 looks for unlinked, but still allocated inodes. Its the equivalent operation to ext3's orphan list, but done with bitmaps in the resource groups. This also fixes a bug where a field in the rgrp was too small. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Add a rgrp bitmap full flagSteven Whitehouse2009-05-212-30/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During block allocation, it is useful to know if sections of disk are full on a finer grained basis than a single resource group. This can make a performance difference when resource groups have larger numbers of bitmap blocks, since we no longer have to search them all block by block in each individual bitmap. The full flag is set on a per-bitmap basis when it has been searched and found to have no free space. It is then skipped in subsequent searches until the flag is reset. The resetting occurs if we have to drop the glock on the resource group for any reason, or if we deallocate some blocks within that resource group and thus free up some space. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Improve resource group error handlingSteven Whitehouse2009-05-207-67/+99
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch improves the error handling in the case where we discover that the summary information in the resource group doesn't match the bitmap information while in the process of allocating blocks. Originally this resulted in a kernel bug, but this patch changes that so that we return -EIO and print some messages explaining what went wrong, and how to fix it. We also remember locally not to try and allocate from the same rgrp again, so that a subsequent allocation in a different rgrp should succeed. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Don't warn when delete inode fails on ro filesystemSteven Whitehouse2009-05-191-1/+1
| | | | | | | | | | | | | | If the filesystem is read-only, then we expect that delete inode will fail, so there is no need to warn about it. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Umount recovery race fixSteven Whitehouse2009-05-199-124/+122
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes a race condition where we can receive recovery requests part way through processing a umount. This was causing problems since the recovery thread had already gone away. Looking in more detail at the recovery code, it was really trying to implement a slight variation on a work queue, and that happens to align nicely with the recently introduced slow-work subsystem. As a result I've updated the code to use slow-work, rather than its own home grown variety of work queue. When using the wait_on_bit() function, I noticed that the wait function that was supplied as an argument was appearing in the WCHAN field, so I've updated the function names in order to produce more meaningful output. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Remove a couple of unused sysfs entriesSteven Whitehouse2009-05-131-13/+0
| | | | | | | | | | | | | | | | | | These two tunables are pointless and would never need to be changed anyway. There is also a race between them and umount as the deamons which they refer to might have gone away. The easiest way to fix the race is to remove the interface. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Add commit= mount optionSteven Whitehouse2009-05-135-60/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It has always been possible to adjust the gfs2 log commit interval, but only from the sysfs interface. This adds a mount option, commit=<nn>, which will be familar to ext3 users. The sysfs interface continues to be available as well, although this might be removed in the future. Also this patch cleans up some duplicated structures in the GFS2 sysfs code. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Move journal live test at transaction startSteven Whitehouse2009-05-131-6/+3
| | | | | | | | | | | | | | | | | | There seems little point grabbing the transaction glock only to have to release it again if the journal isn't live. This moves the test earlier to avoid grabbing the lock when we don't need it in the first place. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Fix timestamps on writeAbhijith Das2009-05-121-10/+10
| | | | | | | | | | | | | | | | | | This patch copies the timestamps from the vfs inode into gfs2 and syncs it to the disk inode during writes. Signed-off-by: Abhijith Das <adas@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Something nonlinear this way comes!Steven Whitehouse2009-05-111-13/+16
| | | | | | | | | | | | | | | | | | | | | | For some reason GFS2 has been missing support for non-linear mappings. This patch fixes that, and also avoids taking any locks for mmap in the O_NOATIME case. In fact we don't actually need to take the lock here at all - just doing file_accessed() would be enough, but we have to take the lock eventually and this helps it hit disk (and thus be seen by other nodes) faster. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Optimise writepage for metadataSteven Whitehouse2009-05-111-9/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | This adds a GFS2 specific writepage for metadata, rather than continuing to use the VFS function. As a result we now tag all our metadata I/O with the correct flag so that blktraces will now be less confusing. Also, the generic function was checking for a number of corner cases which cannot happen on the metadata address spaces so that this should be faster too. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | GFS2: Update the rw flagsSteven Whitehouse2009-05-113-20/+38
|/ | | | | | | | | | | | | | | After Jens recent updates: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=a1f242524c3c1f5d40f1c9c343427e34d1aadd6e et al. this is a patch to bring gfs2 uptodate with the core code. Also I've managed to squash another call to ll_rw_block() along the way. There is still one part of the GFS2 I/O paths which are not correctly annotated and that is due to the sharing of the writeback code between the data and metadata address spaces. I would like to change that too, but this patch is still worth doing on its own, I think. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-05-101-4/+4
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (22 commits) Fix the race between capifs remount and node creation Fix races around the access to ->s_options switch ufs directories to ufs_sync_file() Switch open_exec() and sys_uselib() to do_open_filp() Make open_exec() and sys_uselib() use may_open(), instead of duplicating its parts Reduce path_lookup() abuses Make checkpatch.pl shut up on fs/inode.c NULL noise in fs/super.c:kill_bdev_super() romfs: cleanup romfs_fs.h ROMFS: romfs_dev_read() error ignored fs: dcache fix LRU ordering ocfs2: Use nd_set_link(). Fix deadlock in ipathfs ->get_sb() Fix a leak in failure exit in 9p ->get_sb() Convert obvious places to deactivate_locked_super() New helper: deactivate_locked_super() reiserfs: remove privroot hiding in lookup reiserfs: dont associate security.* with xattr files reiserfs: fixup xattr_root caching Always lookup priv_root on reiserfs mount and keep it ...
| * Reduce path_lookup() abusesAl Viro2009-05-091-4/+4
| | | | | | | | | | | | | | | | ... use kern_path() where possible [folded a fix from rdd] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | GFS2: Fix glock ref counting bugSteven Whitehouse2009-05-091-0/+1
|/ | | | | | | | | Depending on the ordering of events as we go around the glock shrinker loop, it is possible to drop the ref count of a glock incorrectly. It doesn't happen very often. This patch corrects the got_ref variable, fixing the problem. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Ensure that the inode goal block settings are updatedSteven Whitehouse2009-04-231-1/+9
| | | | | | | | | | | | | | | | GFS2 has a goal block associated with each inode indicating the search start position for future block allocations (in fact there are two, but thats for backward compatibility with GFS1 as they are set to identical locations in GFS2). In some circumstances, depending on the ordering of updates to the inode it was possible for the goal block settings to not be updated on disk. This patch ensures that the goal block will always get updated, thus reducing the potential for searching the same (already allocated) blocks again when looking for free space during block allocation. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Fix bug in block allocationSteven Whitehouse2009-04-231-2/+1
| | | | | | | | The new bitfit algorithm was counting from the wrong end of 64 bit words in the bitfield. This fixes it by using __ffs64 instead of fls64 Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Fix page_mkwrite() return codeSteven Whitehouse2009-04-201-1/+3
| | | | | | | | This allows for the possibility of returning VM_FAULT_OOM as well as VM_FAULT_SIGBUS. This ensures that the correct action is taken. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* GFS2: Clear dirty bit at end of inode glock syncSteven Whitehouse2009-04-201-0/+6
| | | | | | | | The dirty bit can get set during the inode glock sync. Its too complicated to change that at the moment, so this is the quick fix - to clear the bit again at the end of the function. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixesLinus Torvalds2009-04-156-21/+24
|\ | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes: GFS2: Use DEFINE_SPINLOCK GFS2: cleanup file_operations mess GFS2: Move umount flush rwsem GFS2: Fix symlink creation race GFS2: Make quotad's waiting interruptible
| * GFS2: Use DEFINE_SPINLOCKXu Gang2009-04-151-1/+1
| | | | | | | | | | | | | | | | | | SPIN_LOCK_UNLOCKED is deprecated, use DEFINE_SPINLOCK instead. (as suggested in Documentation/spinlocks.txt) Signed-off-by: Xu Gang <xug@cn.fujitsu.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: cleanup file_operations messChristoph Hellwig2009-04-153-14/+16
| | | | | | | | | | | | | | | | | | Remove the weird pointer to file_operations mess and replace it with straight-forward defining of the lockinginstance names to the _nolock variants. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Move umount flush rwsemSteven Whitehouse2009-04-151-5/+5
| | | | | | | | | | | | | | | | The rwsem, used only on umount, is in the wrong place in glock.c. This patch moves it up a bit so that it does not get called under a spinlock. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Fix symlink creation raceSteven Whitehouse2009-04-151-0/+1
| | | | | | | | | | | | | | | | | | | | In certain cases symlinks can appear to have zero size if a lookup on the inode occurs within a certain (very short) time after the symlink has been created. The symlink is correctly created on disk but appears to have zero size when stat()ed. This patch closes the race and prevents incorrect sizes appearing. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Make quotad's waiting interruptibleSteven Whitehouse2009-04-151-1/+1
| | | | | | | | | | | | | | So we don't count its D state in the loadavg. Reported-by: Nathan Straz <nstraz@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | gfs2: Remove code handling bio_alloc failure with __GFP_WAITNikanth Karthikesan2009-04-151-5/+0
|/ | | | | | | | | Remove code handling bio_alloc failure with __GFP_WAIT. GFP_NOFS implies __GFP_WAIT. Signed-off-by: Nikanth Karthikesan <knikanth@suse.de> Acked-by: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-04-021-1/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: Remove two unneeded exports and make two symbols static in fs/mpage.c Cleanup after commit 585d3bc06f4ca57f975a5a1f698f65a45ea66225 Trim includes of fdtable.h Don't crap into descriptor table in binfmt_som Trim includes in binfmt_elf Don't mess with descriptor table in load_elf_binary() Get rid of indirect include of fs_struct.h New helper - current_umask() check_unsafe_exec() doesn't care about signal handlers sharing New locking/refcounting for fs_struct Take fs_struct handling to new file (fs/fs_struct.c) Get rid of bumping fs_struct refcount in pivot_root(2) Kill unsharing fs_struct in __set_personality()
| * New helper - current_umask()Al Viro2009-03-311-1/+1
| | | | | | | | | | | | | | current->fs->umask is what most of fs_struct users are doing. Put that into a helper function. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | mm: page_mkwrite change prototype to match faultNick Piggin2009-04-011-1/+4
|/ | | | | | | | | | | | | | | | | | | | | | | | Change the page_mkwrite prototype to take a struct vm_fault, and return VM_FAULT_xxx flags. There should be no functional change. This makes it possible to return much more detailed error information to the VM (and also can provide more information eg. virtual_address to the driver, which might be important in some special cases). This is required for a subsequent fix. And will also make it easier to merge page_mkwrite() with fault() in future. Signed-off-by: Nick Piggin <npiggin@suse.de> Cc: Chris Mason <chris.mason@oracle.com> Cc: Trond Myklebust <trond.myklebust@fys.uio.no> Cc: Miklos Szeredi <miklos@szeredi.hu> Cc: Steven Whitehouse <swhiteho@redhat.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <joel.becker@oracle.com> Cc: Artem Bityutskiy <dedekind@infradead.org> Cc: Felix Blyakher <felixb@sgi.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'for-linus' of ↵Linus Torvalds2009-03-272-2/+2
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: (37 commits) fs: avoid I_NEW inodes Merge code for single and multiple-instance mounts Remove get_init_pts_sb() Move common mknod_ptmx() calls into caller Parse mount options just once and copy them to super block Unroll essentials of do_remount_sb() into devpts vfs: simple_set_mnt() should return void fs: move bdev code out of buffer.c constify dentry_operations: rest constify dentry_operations: configfs constify dentry_operations: sysfs constify dentry_operations: JFS constify dentry_operations: OCFS2 constify dentry_operations: GFS2 constify dentry_operations: FAT constify dentry_operations: FUSE constify dentry_operations: procfs constify dentry_operations: ecryptfs constify dentry_operations: CIFS constify dentry_operations: AFS ...
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