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2005-05-05[PATCH] remove BK documentationAdrian Bunk
There's no longer a reason to document the obsolete BK usage. Signed-off-by: Adrian Bunk <bunk@stusta.de> Cc: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-05[PATCH] __block_write_full_page() simplificationAndrew Morton
The `last_bh' logic probably isn't worth much. In those situations where only the front part of the page is being written out we will save some looping but in the vastly more common case of an all-page writeout if just adds more code. Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-05[PATCH] __block_write_full_page speedupAndrew Morton
Remove all those get_bh()'s and put_bh()'s by extending lock_page() to cover the troublesome regions. (get_bh() and put_bh() happen every time whereas contention on a page's lock in there happens basically never). Cc: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-05[PATCH] __block_write_full_page race fixNick Piggin
When running fsstress -v -d $DIR/tmp -n 1000 -p 1000 -l 2 on an ext2 filesystem with 1024 byte block size, on SMP i386 with 4096 byte page size over loopback to an image file on a tmpfs filesystem, I would very quickly hit BUG_ON(!buffer_async_write(bh)); in fs/buffer.c:end_buffer_async_write It seems that more than one request would be submitted for a given bh at a time. What would happen is the following: 2 threads doing __mpage_writepages on the same page. Thread 1 - lock the page first, and enter __block_write_full_page. Thread 1 - (eg.) mark_buffer_async_write on the first 2 buffers. Thread 1 - set page writeback, unlock page. Thread 2 - lock page, wait on page writeback Thread 1 - submit_bh on the first 2 buffers. => both requests complete, none of the page buffers are async_write, end_page_writeback is called. Thread 2 - wakes up. enters __block_write_full_page. Thread 2 - mark_buffer_async_write on (eg.) the last buffer Thread 1 - finds the last buffer has async_write set, submit_bh on that. Thread 2 - submit_bh on the last buffer. => oops. So change __block_write_full_page to explicitly keep track of the last bh we need to issue, so we don't touch anything after issuing the last request. Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-05[PATCH] fix race in __block_prepare_writeNick Piggin
Fix a race where __block_prepare_write can leak out an in-flight read against a bh if get_block returns an error. This can lead to the page becoming unlocked while the buffer is locked and the read still in flight. __mpage_writepage BUGs on this condition. BUG sighted on a 2-way Itanium2 system with 16K PAGE_SIZE running fsstress -v -d $DIR/tmp -n 1000 -p 1000 -l 2 where $DIR is a new ext2 filesystem with 4K blocks that is quite small (causing get_block to fail often with -ENOSPC). Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-05[PATCH] uml: hostfs failed mount handlingJeff Dike
This cleans up the error handling and fixes a crash if a hostfs mount fails. Signed-off-by: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-05[PATCH] avoid -ENOMEM due reclaimable slab cachesAndrea Arcangeli
This makes sure that reclaimable buffer headers and reclaimable inodes are accounted properly during the overcommit checks. Signed-off-by: Andrea Arcangeli <andrea@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-05-05Merge with /usr/src/ntfs-2.6.gitAnton Altaparmakov
2005-05-05[XFS] Cleanup use of loff_t vs xfs_off_t in the core code.Nathan Scott
SGI Modid: xfs-linux:xfs-kern:22378a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05[XFS] Use the right offset when ensuring a delayed allocate conversion has ↵Nathan Scott
covered the offset originally requested. Can cause data corruption when multiple processes are performing writeout on different areas of the same file. Quite difficult to hit though. SGI Modid: xfs-linux:xfs-kern:22377a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com> .
2005-05-05[XFS] Do not do delalloc conversion on pages beyond EOF ever, not just sometimesNathan Scott
SGI Modid: xfs-linux:xfs-kern:22376a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05[XFS] remove noisy printk at vnode trace allocationEric Sandeen
SGI Modid: xfs-linux:xfs-kern:191625a Signed-off-by: Eric Sandeen <sandeen@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05[XFS] stop background sync from waiting for in-use inodesDaniel Moore
SGI Modid: xfs-linux:xfs-kern:191586a Signed-off-by: Daniel Moore <dxm@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05[XFS] Disable the combination of XFS direct IO and AIO until the IO completionNathan Scott
handling for unwritten extents can be moved out of interrupt context. SGI Modid: xfs-linux:xfs-kern:22343a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05[XFS] Resolve an issue with xfsbufd not getting along with swsusp.Nathan Scott
SGI Modid: xfs-linux:xfs-kern:22342a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05[XFS] Fix up warningsEric Sandeen
SGI Modid: xfs-linux:xfs-kern:191411a Signed-off-by: Eric Sandeen <sandeen@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05[XFS] Allow initial XFS delayed allocation size to be increased beyond 64KB.Nathan Scott
SGI Modid: xfs-linux:xfs-kern:22261a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05[XFS] Add ATTR_NOLOCK for xfs_setattr to indicate that XFS_IOLOCK is heldDean Roehrich
SGI Modid: xfs-linux:xfs-kern:190711a Signed-off-by: Dean Roehrich <roehrich@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com> .
2005-05-05[XFS] Enable XFS_VNODE_TRACEEric Sandeen
SGI Modid: xfs-linux:xfs-kern:190725a Signed-off-by: Eric Sandeen <sandeen@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com> .
2005-05-05[XFS] Fix up uses of nlink_t incorrectly restricting us to 2^16 links for ↵Nathan Scott
some platforms SGI Modid: xfs-linux:xfs-kern:22032a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05[XFS] Block mount attempts for filesystems with version 1 directories.Nathan Scott
SGI Modid: xfs-linux:xfs-kern:21937a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05[XFS] Move the XFS inode to the front of its hash list on a cache hitNathan Scott
SGI Modid: xfs-linux:xfs-kern:21915a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-05-05Merge with /home/shaggy/git/linus-clean/Dave Kleikamp
2005-05-05Merge with master.kernel.org:/pub/scm/linux/kernel/git/torvalds/linux-2.6.gitDavid Woodhouse
2005-05-05NTFS: Use MAX_BUF_PER_PAGE instead of variable sized array allocation forAnton Altaparmakov
better code generation and one less sparse warning in fs/ntfs/aops.c. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Minor cleanup: Define and use NTFS_MAX_CLUSTER_SIZE constant insteadAnton Altaparmakov
of hard coded 0x10000 in fs/ntfs/super.c. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Update attribute definition handling.Anton Altaparmakov
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Some utilities modify the boot sector but do not update the checksum.Anton Altaparmakov
Thus, relax the checking in fs/ntfs/super.c::is_boot_sector_ntfs() to only emit a warning when the checksum is incorrect rather than refusing the mount. Thanks to Bernd Casimir for pointing this problem out. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Remove checks for NULL before calling kfree() since kfree() does theJesper Juhl
checking itself. (Jesper Juhl) Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Fix compilation when configured read-only.Anton Altaparmakov
- Add ifdef NTFS_RW around write specific code if fs/ntfs/runlist.[hc] and fs/ntfs/attrib.[hc]. - Minor bugfix to fs/ntfs/attrib.c::ntfs_attr_make_non_resident() where the runlist was not freed in all error cases. - Add fs/ntfs/runlist.[hc]::ntfs_rl_find_vcn_nolock(). Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Include linux/swap.h in fs/ntfs/attrib.c for mark_page_accessed().Anton Altaparmakov
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: - Modify ->readpage and ->writepage (fs/ntfs/aops.c) so they detectAnton Altaparmakov
and handle the case where an attribute is converted from resident to non-resident by a concurrent file write. - Reorder some operations when converting an attribute from resident to non-resident (fs/ntfs/attrib.c) so it is safe wrt concurrent ->readpage and ->writepage. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Fix sign of various error return values to be negative inAnton Altaparmakov
fs/ntfs/lcnalloc.c. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Add fs/ntfs/attrib.[hc]::ntfs_attr_make_non_resident().Anton Altaparmakov
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: - Fix bug in fs/ntfs/attrib.c::ntfs_find_vcn_nolock() where afterAnton Altaparmakov
dropping the read lock and taking the write lock we were not checking whether someone else did not already do the work we wanted to do. - Rename ntfs_find_vcn_nolock() to ntfs_attr_find_vcn_nolock(). - Tidy up some comments in fs/ntfs/runlist.c. - Add LCN_ENOMEM and LCN_EIO definitions to fs/ntfs/runlist.h. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Add fs/ntfs/attrib.[hc]::ntfs_attr_vcn_to_lcn_nolock() used by the newAnton Altaparmakov
write code. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Add AT_EA in addition to AT_DATA to whitelist for being allowed to beAnton Altaparmakov
non-resident in fs/ntfs/attrib.c::ntfs_attr_can_be_non_resident(). Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Correct sparse file handling. The compressed values need to beAnton Altaparmakov
checked and set in the ntfs inode as done for compressed files and the compressed size needs to be used for vfs inode->i_blocks instead of the allocated size, again, as done for compressed files. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Make fs/ntfs/namei.c::ntfs_get_{parent,dentry} static and move theAnton Altaparmakov
definition of ntfs_export_ops from fs/ntfs/super.c to namei.c. Also, declare ntfs_export_ops in fs/ntfs/ntfs.h. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Fix printk format warnings on ia64. (Randy Dunlap)Randy Dunlap
Signed-off-by: Randy Dunlap <rddunlap@osdl.org> Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: - Set the ntfs_inode->allocated_size to the real allocated size in theAnton Altaparmakov
mft record for resident attributes (fs/ntfs/inode.c). - Small readability cleanup to use "a" instead of "ctx->attr" everywhere (fs/ntfs/inode.c). Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Fix a nasty runlist merge bug when merging two holes.Anton Altaparmakov
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Change time to u64 in time.h::ntfs2utc() as it otherwise generates aAnton Altaparmakov
warning in the do_div() call on sparc32. Thanks to Meelis Roos for the report and analysis of the warning. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: - Split ntfs_map_runlist() into ntfs_map_runlist() and a non-lockingAnton Altaparmakov
helper ntfs_map_runlist_nolock() which is used by ntfs_map_runlist(). This allows us to map runlist fragments with the runlist lock already held without having to drop and reacquire it around the call. Adapt all callers. - Change ntfs_find_vcn() to ntfs_find_vcn_nolock() which takes a locked runlist. This allows us to find runlist elements with the runlist lock already held without having to drop and reacquire it around the call. Adapt all callers. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Fix a bug in fs/ntfs/runlist.c::ntfs_mapping_pairs_decompress() inAnton Altaparmakov
the creation of the unmapped runlist element for the base attribute extent. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: - Add disable_sparse mount option together with a per volume sparseAnton Altaparmakov
enable bit which is set appropriately and a per inode sparse disable bit which is preset on some system file inodes as appropriate. - Enforce that sparse support is disabled on NTFS volumes pre 3.0. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Optimise/reorganise some error handling code in fs/ntfs/aops.c.Anton Altaparmakov
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Fixup the resident attribute resizing code inAnton Altaparmakov
fs/ntfs/aops.c::ntfs_{prepare,commit}_write()() and re-enable it. It should be safe now. (Famous last words...) Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Fix stupid bug in fs/ntfs/mft.c introduced in last changeset.Anton Altaparmakov
Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
2005-05-05NTFS: Repeat a failed ntfs_truncate() in fs/ntfs/aops.c::ntfs_writepage()Anton Altaparmakov
and abort if it fails again. Signed-off-by: Anton Altaparmakov <aia21@cantab.net>
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