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2006-09-07[XFS] Prevent free space oversubscription and xfssyncd looping.David Chinner1-24/+8
The fix for recent ENOSPC deadlocks introduced certain limitations on allocations. The fix could cause xfssyncd to loop endlessly if we did not leave some space free for the allocator to work correctly. Basically, we needed to ensure that we had at least 4 blocks free for an AG free list and a block for the inode bmap btree at all times. However, this did not take into account the fact that each AG has a free list that needs 4 blocks. Hence any filesystem with more than one AG could cause oversubscription of free space and make xfssyncd spin forever trying to allocate space needed for AG freelists that was not available in the AG. The following patch reserves space for the free lists in all AGs plus the inode bmap btree which prevents oversubscription. It also prevents those blocks from being reported as free space (as they can never be used) and makes the SMP in-core superblock accounting code and the reserved block ioctl respect this requirement. SGI-PV: 955674 SGI-Modid: xfs-linux-melb:xfs-kern:26894a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: David Chatterton <chatz@sgi.com>
2006-06-27Merge git://oss.sgi.com:8090/nathans/xfs-2.6Linus Torvalds1-1/+2
* git://oss.sgi.com:8090/nathans/xfs-2.6: [XFS] Fixup whitespace damage in log_write, remove final warning. [XFS] Rework code snippets slightly to remove remaining recent-gcc [XFS] Fix realtime subvolume expansion, a porting bug b0rked it. Coverity [XFS] Remove a race condition where a linked inode could BUG_ON in [XFS] Remove redundant directory checks from inode link operation. [XFS] Remove a couple of no-longer-used macros. [XFS] Reduce size of xfs_trans_t structure. * remove ->t_forw, ->t_back -- [XFS] remove unused behaviour lock - shrink XFS vnode as a side effect. [XFS] * There is trivial "inode => vnode => inode" conversion, but only [XFS] link(2) on directory is banned in VFS.
2006-06-27[PATCH] cpu hotplug: use hotplug version of cpu notifier in appropriate placesChandra Seetharaman1-8/+10
Make use the of newly defined hotplug version of cpu_notifier functionality wherever appropriate. Signed-off-by: Chandra Seetharaman <sekharan@us.ibm.com> Cc: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-28[XFS] Rework code snippets slightly to remove remaining recent-gccNathan Scott1-1/+2
warnings. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26364a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-06-20[XFS] Remove version 1 directory code. Never functioned on Linux, justNathan Scott1-14/+1
pure bloat. SGI-PV: 952969 SGI-Modid: xfs-linux-melb:xfs-kern:26251a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-06-09[XFS] Resolve a namespace collision on vnode/vnodeops for FreeBSD porters.Nathan Scott1-1/+1
SGI-PV: 953338 SGI-Modid: xfs-linux-melb:xfs-kern:26107a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-06-09[XFS] Resolve a namespace collision on vfs/vfsops for FreeBSD porters.Nathan Scott1-4/+4
SGI-PV: 9533338 SGI-Modid: xfs-linux-melb:xfs-kern:26106a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-06-09[XFS] Portability changes: remove prdev, stick to one diagnosticNathan Scott1-2/+3
interface. SGI-PV: 953338 SGI-Modid: xfs-linux-melb:xfs-kern:26103a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-06-09[XFS] In actual allocation of file system blocks and freeing extents, theYingping Lu1-2/+22
transaction within each such operation may involve multiple locking of AGF buffer. While the freeing extent function has sorted the extents based on AGF number before entering into transaction, however, when the file system space is very limited, the allocation of space would try every AGF to get space allocated, this could potentially cause out-of-order locking, thus deadlock could happen. This fix mitigates the scarce space for allocation by setting aside a few blocks without reservation, and avoid deadlock by maintaining ascending order of AGF locking. SGI-PV: 947395 SGI-Modid: xfs-linux-melb:xfs-kern:210801a Signed-off-by: Yingping Lu <yingping@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-04-11[XFS] Fix superblock validation regression for the zero imaxpct case. Nathan Scott1-1/+1
Thanks to kjamieson for noticing. SGI-PV: 951661 SGI-Modid: xfs-linux-melb:xfs-kern:25675a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-31[XFS] Implement the silent parameter to fill_super, previously ignored.Nathan Scott1-40/+31
SGI-PV: 951299 SGI-Modid: xfs-linux-melb:xfs-kern:25632a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-29[XFS] We really suck at spulling. Thanks to Chris Pascoe for fixing allNathan Scott1-2/+2
these typos. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:25539a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14[XFS] Additional mount time superblock validation checks.Nathan Scott1-1/+4
SGI-PV: 950491 SGI-Modid: xfs-linux-melb:xfs-kern:25354a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14[XFS] using a spinlock per cpu for superblock counter exclusion results inDavid Chinner1-13/+24
a preēmpt counter overflow at 256p and above. Change the exclusion mechanism to use atomic bit operations and busy wait loops to emulate the spin lock exclusion mechanism but without the preempt count issues. SGI-PV: 950027 SGI-Modid: xfs-linux-melb:xfs-kern:25338a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14[XFS] Add support for hotplug CPUs to the per-CPU superblock counters byDavid Chinner1-2/+72
registering a notifier callback that listens to CPU up/down events to modify the counters appropriately. SGI-PV: 949726 SGI-Modid: xfs-linux-melb:xfs-kern:25214a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-03-14[XFS] On machines with more than 8 cpus, when running parallel I/ODavid Chinner1-16/+544
threads, the incore superblock lock becomes the limiting factor for buffered write throughput. Make the contended fields in the incore superblock use per-cpu counters so that there is no global lock to limit scalability. SGI-PV: 946630 SGI-Modid: xfs-linux-melb:xfs-kern:25106a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-15return statement cleanup - kill pointless parenthesesJesper Juhl1-33/+33
This patch removes pointless parentheses from return statements. Signed-off-by: Jesper Juhl <juhl-lkml@dif.dk> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-01-11[XFS] Fix an intermittent pquota panic caused by dodgey quota flags to anNathan Scott1-2/+1
umount dquot flush call. SGI-PV: 946444 SGI-Modid: xfs-linux-melb:xfs-kern:24680a Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-11[XFS] Mark some lookup tables const. Thanks to Arjan van de Ven forChristoph Hellwig1-1/+1
spotting these. SGI-PV: 946028 SGI-Modid: xfs-linux-melb:xfs-kern:202617a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2006-01-09[PATCH] mutex subsystem, semaphore to mutex: XFSJes Sorensen1-1/+1
This patch switches XFS over to use the new mutex code directly as opposed to the previous workaround patch I posted earlier that avoided the namespace clash by forcing it back to semaphores. This falls in the 'works for me<tm>' category. Signed-off-by: Jes Sorensen <jes@trained-monkey.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2005-11-02[XFS] Fix calculation of reserved AGs for inodes in 32-bit inode modeEric Sandeen1-1/+1
Spotted by Roger Willcocks <willcor @at@ gmail.com> SGI-PV: 944858 SGI-Modid: xfs-linux:xfs-kern:201213a Signed-off-by: Eric Sandeen <sandeen@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02[XFS] Rework fid encode/decode wrt 64 bit inums interacting with NFS.Nathan Scott1-3/+6
SGI-PV: 937127 SGI-Modid: xfs-linux:xfs-kern:24201a Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02[XFS] Update license/copyright notices to match the prefered SGINathan Scott1-25/+11
boilerplate. SGI-PV: 913862 SGI-Modid: xfs-linux:xfs-kern:23903a Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02[XFS] Remove xfs_macros.c, xfs_macros.h, rework headers a whole lot.Nathan Scott1-8/+7
SGI-PV: 943122 SGI-Modid: xfs-linux:xfs-kern:23901a Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02[XFS] Track external log/realtime device names for correct reporting inNathan Scott1-0/+4
/proc/mounts. SGI-PV: 942984 SGI-Modid: xfs-linux:xfs-kern:23862a Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02[XFS] Ondisk format extension for extended attributes (attr2). Basically,Nathan Scott1-3/+4
the data/attr forks now grow up/down from either end of the literal area, rather than dividing the literal area into two chunks and growing both upward. Means we can now make much more efficient use of the attribute space, incl. fitting DMF attributes inline in 256 byte inodes, and large jumps in dbench3 performance numbers. It is self enabling, but can be forced on/off via the attr2/noattr2 mount options. SGI-PV: 941645 SGI-Modid: xfs-linux:xfs-kern:23835a Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-11-02[XFS] Add format checking to cmn_err and icmn_errChristoph Hellwig1-1/+1
SGI-PV: 942243 SGI-Modid: xfs-linux:xfs-kern:198658a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-06-21[XFS] remove xfs_incore_relseChristoph Hellwig1-9/+0
SGI-PV: 936977 SGI-Modid: xfs-linux:xfs-kern:193409a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-06-21[XFS] rewrite xfs_iflush_allChristoph Hellwig1-1/+1
SGI-PV: 936890 SGI-Modid: xfs-linux:xfs-kern:193349a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-06-21[XFS] mark various symbols static Patch from Adrian BunkChristoph Hellwig1-2/+3
SGI-PV: 936255 SGI-Modid: xfs-linux:xfs-kern:192760a Signed-off-by: Christoph Hellwig <hch@sgi.com> Signed-off-by: Nathan Scott <nathans@sgi.com>
2005-05-05[XFS] Block mount attempts for filesystems with version 1 directories.Nathan Scott1-0/+9
SGI Modid: xfs-linux:xfs-kern:21937a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Christoph Hellwig <hch@sgi.com>
2005-04-16Linux-2.6.12-rc2Linus Torvalds1-0/+1586
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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