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2006-09-30[PATCH] BLOCK: Make it possible to disable the block layer [try #6]David Howells1-0/+1
Make it possible to disable the block layer. Not all embedded devices require it, some can make do with just JFFS2, NFS, ramfs, etc - none of which require the block layer to be present. This patch does the following: (*) Introduces CONFIG_BLOCK to disable the block layer, buffering and blockdev support. (*) Adds dependencies on CONFIG_BLOCK to any configuration item that controls an item that uses the block layer. This includes: (*) Block I/O tracing. (*) Disk partition code. (*) All filesystems that are block based, eg: Ext3, ReiserFS, ISOFS. (*) The SCSI layer. As far as I can tell, even SCSI chardevs use the block layer to do scheduling. Some drivers that use SCSI facilities - such as USB storage - end up disabled indirectly from this. (*) Various block-based device drivers, such as IDE and the old CDROM drivers. (*) MTD blockdev handling and FTL. (*) JFFS - which uses set_bdev_super(), something it could avoid doing by taking a leaf out of JFFS2's book. (*) Makes most of the contents of linux/blkdev.h, linux/buffer_head.h and linux/elevator.h contingent on CONFIG_BLOCK being set. sector_div() is, however, still used in places, and so is still available. (*) Also made contingent are the contents of linux/mpage.h, linux/genhd.h and parts of linux/fs.h. (*) Makes a number of files in fs/ contingent on CONFIG_BLOCK. (*) Makes mm/bounce.c (bounce buffering) contingent on CONFIG_BLOCK. (*) set_page_dirty() doesn't call __set_page_dirty_buffers() if CONFIG_BLOCK is not enabled. (*) fs/no-block.c is created to hold out-of-line stubs and things that are required when CONFIG_BLOCK is not set: (*) Default blockdev file operations (to give error ENODEV on opening). (*) Makes some /proc changes: (*) /proc/devices does not list any blockdevs. (*) /proc/diskstats and /proc/partitions are contingent on CONFIG_BLOCK. (*) Makes some compat ioctl handling contingent on CONFIG_BLOCK. (*) If CONFIG_BLOCK is not defined, makes sys_quotactl() return -ENODEV if given command other than Q_SYNC or if a special device is specified. (*) In init/do_mounts.c, no reference is made to the blockdev routines if CONFIG_BLOCK is not defined. This does not prohibit NFS roots or JFFS2. (*) The bdflush, ioprio_set and ioprio_get syscalls can now be absent (return error ENOSYS by way of cond_syscall if so). (*) The seclvl_bd_claim() and seclvl_bd_release() security calls do nothing if CONFIG_BLOCK is not set, since they can't then happen. Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
2006-09-29[XFS] Remove v1 dir trace macro - missed in a past commit.Tim Shimmin1-1/+0
Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] 955947: Infinite loop in xfs_bulkstat() on formatter() errorVlad Apostolov1-0/+2
SGI-PV: 955947 SGI-Modid: xfs-linux-melb:xfs-kern:26986a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] pv 956241, author: nathans, rv: vapo - make ino validation checksVlad Apostolov2-10/+19
consistent in bulkstat SGI-PV: 956241 SGI-Modid: xfs-linux-melb:xfs-kern:26984a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] pv 956240, author: nathans, rv: vapo - Minor fixes inVlad Apostolov1-6/+11
kmem_zalloc_greedy() SGI-PV: 956240 SGI-Modid: xfs-linux-melb:xfs-kern:26983a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Really fix use after free in xfs_iunpin.David Chinner6-3/+35
The previous attempts to fix the linux inode use-after-free in xfs_iunpin simply made the problem harder to hit. We actually need complete exclusion between xfs_reclaim and xfs_iunpin, as well as ensuring that the i_flags are consistent during both of these functions. Introduce a new spinlock for exclusion and the i_flags, and fix up xfs_iunpin to use igrab before marking the inode dirty. SGI-PV: 952967 SGI-Modid: xfs-linux-melb:xfs-kern:26964a Signed-off-by: David Chinner <dgc@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Collapse sv_init and init_sv into just the one interface.Eric Sandeen1-2/+0
SGI-PV: 907752 SGI-Modid: xfs-linux-melb:xfs-kern:26925a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] standardize on one sema init macroEric Sandeen2-3/+1
One sema to rule them all, one sema to find them... SGI-PV: 907752 SGI-Modid: xfs-linux-melb:xfs-kern:26911a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Reduce endian flipping in alloc_btree, same as was done forEric Sandeen1-51/+57
ialloc_btree. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26910a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Minor cleanup from dio locking fix, remove an extra conditional.Nathan Scott1-5/+5
SGI-PV: 955696 SGI-Modid: xfs-linux-melb:xfs-kern:26908a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Fix kmem_zalloc_greedy warnings on 64 bit platforms.Nathan Scott4-4/+5
SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26907a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] pv 955157, rv bnaujok - break the loop on EFAULT formatter() errorVlad Apostolov1-3/+3
SGI-PV: 955157 SGI-Modid: xfs-linux-melb:xfs-kern:26869a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] pv 955157, rv bnaujok - break the loop on formatter() errorVlad Apostolov1-0/+5
SGI-PV: 955157 SGI-Modid: xfs-linux-melb:xfs-kern:26866a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Fixes the leak in reservation space because we weren't ungrantingTim Shimmin2-2/+12
space for the unmount record - which becomes a problem in the freeze/thaw scenario. SGI-PV: 942533 SGI-Modid: xfs-linux-melb:xfs-kern:26815a Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Add lock annotations to xfs_trans_update_ail andJosh Triplett2-7/+9
xfs_trans_delete_ail xfs_trans_update_ail and xfs_trans_delete_ail get called with the AIL lock held, and release it. Add lock annotations to these two functions so that sparse can check callers for lock pairing, and so that sparse will not complain about these functions since they intentionally use locks in this manner. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26807a Signed-off-by: Josh Triplett <josh@freedesktop.org> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Fix a porting botch on the realtime subvol growfs code path.Nathan Scott2-1/+8
SGI-PV: 955515 SGI-Modid: xfs-linux-melb:xfs-kern:26806a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Minor code rearranging and cleanup to prevent some coverity falseNathan Scott3-37/+36
positives. SGI-PV: 955502 SGI-Modid: xfs-linux-melb:xfs-kern:26805a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Remove a no-longer-correct debug assert from dio completionNathan Scott1-1/+0
handling. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26804a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Add a greedy allocation interface, allocating within a min/max sizeNathan Scott5-31/+34
range. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26803a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Improve error handling for the zero-fsblock extent detection code.Nathan Scott4-68/+51
SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26802a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Be more defensive with page flags (error/private) for metadataNathan Scott1-3/+8
buffers. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26801a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Add a debug flag for allocations which are known to be larger thanNathan Scott7-9/+18
one page. SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26800a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Remove several macros that are no longer used anywhereEric Sandeen10-68/+1
SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26749a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Remove unused iop_abort log item operationEric Sandeen5-131/+2
SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26747a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Remove a couple of unused BUF macrosEric Sandeen2-7/+0
SGI-PV: 955302 SGI-Modid: xfs-linux-melb:xfs-kern:26746a Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] pass file mode on DMAPI remove eventsVlad Apostolov1-3/+13
SGI-PV: 953687 SGI-Modid: xfs-linux-melb:xfs-kern:26639a Signed-off-by: Vlad Apostolov <vapo@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Remove last bulkstat false-positives with debug kernels.Nathan Scott5-17/+22
SGI-PV: 953819 SGI-Modid: xfs-linux-melb:xfs-kern:26628a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Ensure xlog_state_do_callback does not report spurious warnings onNathan Scott1-2/+7
ramdisks. SGI-PV: 954802 SGI-Modid: xfs-linux-melb:xfs-kern:26627a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Increase the size of the buffer holding the local inode clusterNathan Scott1-6/+16
list, to increase our potential readahead window and in turn improve bulkstat performance. SGI-PV: 944409 SGI-Modid: xfs-linux-melb:xfs-kern:26607a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Drop unneeded endian conversion in bulkstat and start readahead forNathan Scott1-37/+31
batches of inode cluster buffers at once, before any blocking reads are issued. SGI-PV: 944409 SGI-Modid: xfs-linux-melb:xfs-kern:26606a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] When issuing metadata readahead, submit bio with READA not READ.Nathan Scott1-7/+7
SGI-PV: 944409 SGI-Modid: xfs-linux-melb:xfs-kern:26603a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Rework DMAPI bulkstat calls in such a way that we can directlyNathan Scott2-15/+61
extract inline attributes out of the bulkstat buffer (for that case), rather than using an (extremely expensive for large icount filesystems) iget for fetching attrs. SGI-PV: 944409 SGI-Modid: xfs-linux-melb:xfs-kern:26602a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Add EA list callbacks for xfs kernel use. Cleanup some namespaceTim Shimmin4-247/+334
code. SGI-PV: 954372 SGI-Modid: xfs-linux-melb:xfs-kern:26583a Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Update XFS for i_blksize removal from generic inode structureNathan Scott1-5/+20
SGI-PV: 954366 SGI-Modid: xfs-linux-melb:xfs-kern:26565a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] remove accidentally reintroduced vfs unmount flag, unneeded inNathan Scott1-1/+1
current kernels SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26564a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] remove bhv_lookup, _range version works aswell and has more usefulChristoph Hellwig4-25/+2
semantics. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26563a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] use NULL for pointer initialisation instead of zero-cast-to-ptrNathan Scott4-15/+15
SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26562a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] endianess annotations for xfs_bmbt_key Trivial as there are noChristoph Hellwig4-33/+25
incore users. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26561a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] endianess annotate XFS_BMAP_BROOT_PTR_ADDR Make sure it returns aChristoph Hellwig3-50/+47
__be64 and let the callers use the proper macros. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26560a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] endianess annotations for xfs_bmbt_ptr_t/xfs_bmdr_ptr_tChristoph Hellwig1-2/+4
SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26559a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] add xfs_btree_check_lptr_disk variant which handles endianChristoph Hellwig3-13/+16
conversion SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26558a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] remove left over INT_ comments in *alloc*.c We can verify endianessChristoph Hellwig2-16/+16
handling with sparse now, no need for comments. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26557a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] endianess annotations for xfs_inobt_rec_t / xfs_inobt_key_tChristoph Hellwig6-46/+51
SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26556a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] endianess annotation for xfs_agfl_t. Trivial, xfs_agfl_t is alwaysChristoph Hellwig2-4/+4
used for ondisk values. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26553a Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Fix sparse warning found when page tracing enabled, due toNathan Scott1-4/+4
overloaded gfp_t param. SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26552a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Fix rounding bug in xfs_free_file_space found by sparse checking.Nathan Scott1-3/+2
SGI-PV: 954580 SGI-Modid: xfs-linux-melb:xfs-kern:26551a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] move XFS_IOC_GETVERSION to main multiplexerAlexey Dobriyan1-7/+2
Avoids doing an unnecessary inode to vnode conversion and avoids a memory allocation. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26492a Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] cleanup the field types of some item format structuresTim Shimmin2-54/+62
SGI-PV: 954365 SGI-Modid: xfs-linux-melb:xfs-kern:26406a Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] Improve xfsbufd delayed write submission patterns, after blktraceNathan Scott1-10/+14
analysis. Under a sequential create+allocate workload, blktrace reported backward writes being issued by xfsbufd, and frequent inappropriate queue unplugs. We now insert at the tail when moving from the delwri lists to the temp lists, which maintains correct ordering, and we avoid unplugging queues deep in the submit paths when we'd shortly do it at a higher level anyway. blktrace now reports much healthier write patterns from xfsbufd for this workload (and likely many others). SGI-PV: 954310 SGI-Modid: xfs-linux-melb:xfs-kern:26396a Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
2006-09-28[XFS] pass inode to xfs_ioc_space(), simplify some code. There is trivialAlexey Dobriyan1-5/+5
"inode => vnode => inode" conversion, but only flags and mode of final inode are looked at. Pass original inode instead. SGI-PV: 904196 SGI-Modid: xfs-linux-melb:xfs-kern:26395a Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Nathan Scott <nathans@sgi.com> Signed-off-by: Tim Shimmin <tes@sgi.com>
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 04:42:29 +0000