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Revision 1.51 / (download) - annotate - [select for diffs], Wed Oct 1 04:30:30 2008 UTC (9 years ago) by bnaujok.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD
Changes since 1.50: +0 -3
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Sync up kernel and user-space headers Merge of xfs-linux-melb:xfs-kern:32231a by kenmcd. Sync up kernel and user-space headers
Revision 1.50 / (download) - annotate - [select for diffs], Wed Sep 24 16:31:33 2008 UTC (9 years, 1 month ago) by lachlan.longdrop.melbourne.sgi.com
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Changes since 1.49: +5 -0
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implement generic xfs_btree_get_rec Not really much reason to make it generic given that it's so small, but this is the last non-method in xfs_alloc_btree.c and xfs_ialloc_btree.c, so it makes the whole btree implementation more structured. Signed-off-by: Christoph Hellwig <hch@lst.de> Merge of xfs-linux-melb:xfs-kern:32206a by kenmcd. implement generic xfs_btree_get_rec
Revision 1.49 / (download) - annotate - [select for diffs], Wed Sep 24 16:21:48 2008 UTC (9 years, 1 month ago) by lachlan.longdrop.melbourne.sgi.com
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Changes since 1.48: +15 -0
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implement generic xfs_btree_lookup From: Dave Chinner <dgc@sgi.com> [hch: split out from bigger patch and minor adaptions] Signed-off-by: Christoph Hellwig <hch@lst.de> Merge of xfs-linux-melb:xfs-kern:32192a by kenmcd. implement generic xfs_btree_lookup
Revision 1.48 / (download) - annotate - [select for diffs], Thu Aug 2 16:09:24 2007 UTC (10 years, 2 months ago) by dgc.longdrop.melbourne.sgi.com
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Changes since 1.47: +1 -6
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Pick a single default inode cluster size. Remove scaling of inode "clusters" based on machine memory; small cluster cut-point was an unrealistic 32MB and was probably never tested. Removes another user of xfs_physmem. Signed-off-by: Eric Sandeen <sandeen@sandeen.net> Merge of xfs-linux-melb:xfs-kern:29324a by kenmcd. Don't scale inode cluster size based on physical memory.
Revision 1.47 / (download) - annotate - [select for diffs], Tue May 22 15:50:48 2007 UTC (10 years, 5 months ago) by dgc.longdrop.melbourne.sgi.com
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Changes since 1.46: +10 -0
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Lazy Superblock Counters When we have a couple of hundred transactions on the fly at once, they all typically modify the on disk superblock in some way. create/unclink/mkdir/rmdir modify inode counts, allocation/freeing modify free block counts. When these counts are modified in a transaction, the must eventually lock the superblock buffer and apply the mods. The buffer then remains locked until the transaction is committed into the incore log buffer. The result of this is that with enough transactions on the fly the incore superblock buffer becomes a bottleneck. The result of contention on the incore superblock buffer is that transaction rates fall - the more pressure that is put on the superblock buffer, the slower things go. The key to removing the contention is to not require the superblock fields in question to be locked. We do that by not marking the superblock dirty in the transaction. IOWs, we modify the incore superblock but do not modify the cached superblock buffer. In short, we do not log superblock modifications to critical fields in the superblock on every transaction. In fact we only do it just before we write the superblock to disk every sync period or just before unmount. This creates an interesting problem - if we don't log or write out the fields in every transaction, then how do the values get recovered after a crash? the answer is simple - we keep enough duplicate, logged information in other structures that we can reconstruct the correct count after log recovery has been performed. It is the AGF and AGI structures that contain the duplicate information; after recovery, we walk every AGI and AGF and sum their individual counters to get the correct value, and we do a transaction into the log to correct them. An optimisation of this is that if we have a clean unmount record, we know the value in the superblock is correct, so we can avoid the summation walk under normal conditions and so mount/recovery times do not change under normal operation. One wrinkle that was discovered during development was that the blocks used in the freespace btrees are never accounted for in the AGF counters. This was once a valid optimisation to make; when the filesystem is full, the free space btrees are empty and consume no space. Hence when it matters, the "accounting" is correct. But that means the when we do the AGF summations, we would not have a correct count and xfs_check would complain. Hence a new counter was added to track the number of blocks used by the free space btrees. This is an *on-disk format change*. As a result of this, lazy superblock counters are a mkfs option and at the moment on linux there is no way to convert an old filesystem. This is possible - xfs_db can be used to twiddle the right bits and then xfs_repair will do the format conversion for you. Similarly, you can convert backwards as well. At some point we'll add functionality to xfs_admin to do the bit twiddling easily.... Merge of xfs-linux-melb:xfs-kern:28652a by kenmcd. Changes to support lazy superblock counters.
Revision 1.46 / (download) - annotate - [select for diffs], Fri Sep 23 03:51:28 2005 UTC (12 years, 1 month ago) by nathans.longdrop.melbourne.sgi.com
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Changes since 1.45: +12 -26
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Update license/copyright notices to match the prefered SGI boilerplate. Merge of xfs-linux-melb:xfs-kern:23903a by kenmcd.
Revision 1.45 / (download) - annotate - [select for diffs], Fri Sep 23 03:48:50 2005 UTC (12 years, 1 month ago) by nathans.longdrop.melbourne.sgi.com
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Changes since 1.44: +12 -28
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Remove xfs_macros.c, xfs_macros.h, rework headers a whole lot. Merge of xfs-linux-melb:xfs-kern:23901a by kenmcd.
Revision 1.44 / (download) - annotate - [select for diffs], Mon Oct 6 18:11:55 2003 UTC (14 years ago) by lord
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Changes since 1.43: +4 -1
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Implement deletion of inode clusters in XFS. changed prototype for xfs_difree
Revision 1.43 / (download) - annotate - [select for diffs], Fri Jun 27 18:04:26 2003 UTC (14 years, 4 months ago) by cattelan
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Changes since 1.42: +181 -0
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The Big Move linux/fs/xfs/xfs_ialloc.h 1.41 Renamed to xfs_ialloc.h
Revision 1.42 / (download) - annotate - [select for diffs], Fri Jun 27 17:57:21 2003 UTC (14 years, 4 months ago) by cattelan
Branch: MAIN
CVS Tags: DENUKE
Changes since 1.41: +0 -181
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Nuke
Revision 1.41 / (download) - annotate - [select for diffs], Tue Apr 15 23:16:46 2003 UTC (14 years, 6 months ago) by cattelan
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CVS Tags: XFS-1_3_0pre1
Changes since 1.40: +16 -16
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Whitespace cleanup Clean up some whitespace... revert some whitespace changes from previous whitespace cleanup (incorrect tabs)
Revision 1.40 / (download) - annotate - [select for diffs], Wed Jul 10 19:00:42 2002 UTC (15 years, 3 months ago) by sandeen
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Changes since 1.39: +26 -26
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whitespace cleanup
Revision 1.39 / (download) - annotate - [select for diffs], Mon Sep 25 05:42:07 2000 UTC (17 years, 1 month ago) by nathans
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CVS Tags: Release-1_0_0,
PreRelease-0_10,
Linux-2_4_5-merge
Changes since 1.38: +9 -7
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use xfs.h, remove all traces of SIM, push extern declarations into headers, dead code removal.
Revision 1.38 / (download) - annotate - [select for diffs], Fri Jun 30 18:54:07 2000 UTC (17 years, 3 months ago) by lord
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Changes since 1.37: +2 -2
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change how inode buffer offset is calculated to allow non-mapped inode buffers.
Revision 1.37 / (download) - annotate - [select for diffs], Fri Jun 9 02:50:02 2000 UTC (17 years, 4 months ago) by kenmcd
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CVS Tags: GPL-ENCUMBRANCE
Changes since 1.36: +26 -13
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Updated copyright and license notices, ready for open source release Merge of 2.3.99pre2-xfs:slinx:55821a by ananth.
Revision 1.36 / (download) - annotate - [select for diffs], Sun Jan 30 09:59:06 2000 UTC (17 years, 8 months ago) by kenmcd
Branch: MAIN
CVS Tags: DELETE
Changes since 1.35: +11 -16
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Encumbrance review done. Add copyright and license words consistent with GPL. Refer to http://fsg.melbourne.sgi.com/reviews/ for details. There is a slight change in the license terms and conditions words to go with the copyrights, so most of the files are not getting new GPL's, just updated versions ... but there are 20-30 more files here as well.
Revision 1.35 / (download) - annotate - [select for diffs], Mon Jan 3 21:41:53 2000 UTC (17 years, 9 months ago) by kenmcd
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Changes since 1.34: +24 -1
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Encumbrance review done. Add copyright and license words consistent with GPL.
Revision 1.34 / (download) - annotate - [select for diffs], Mon Nov 22 19:39:07 1999 UTC (17 years, 11 months ago) by lord
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Changes since 1.33: +1 -1
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virtualize interface to buffer data
Revision 1.33 / (download) - annotate - [select for diffs], Wed Nov 17 19:22:23 1999 UTC (17 years, 11 months ago) by lord
Branch: MAIN
Changes since 1.32: +6 -6
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replace struct buf and buf_t references with xfs_buf and xfs_buf_t
Revision 1.32 / (download) - annotate - [select for diffs], Tue Jul 15 17:58:42 1997 UTC (20 years, 3 months ago) by doucette
Branch: MAIN
Changes since 1.31: +2 -1
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Add okalloc argument, to control whether allocation is done.
Revision 1.31 / (download) - annotate - [select for diffs], Wed Feb 21 05:00:30 1996 UTC (21 years, 8 months ago) by ack
Branch: MAIN
Changes since 1.30: +8 -2
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auto-merge of changes from /proj/banyan/isms/irix/kern/fs/xfs/RCS/xfs_ialloc.h,v > ---------------------------- > revision 1.31 > date: 1996/02/20 23:40:03; author: ajs; state: Exp; lines: +8 -2 > 350478 Make the inode cluster size variable. > =============================================================================
Revision 1.30 / (download) - annotate - [select for diffs], Wed Aug 16 05:46:17 1995 UTC (22 years, 2 months ago) by doucette
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Changes since 1.29: +24 -6
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Turn some macros into functions for 32-bit kernels, to save some memory.
Revision 1.29 / (download) - annotate - [select for diffs], Tue Aug 8 00:56:24 1995 UTC (22 years, 2 months ago) by rcc
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Changes since 1.28: +2 -2
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284911 - bump up the inode cluster size to 8K
Revision 1.28 / (download) - annotate - [select for diffs], Mon Aug 7 18:29:07 1995 UTC (22 years, 2 months ago) by doucette
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Changes since 1.27: +3 -3
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Cosmetic cleanup in the function prototypes.
Revision 1.27 / (download) - annotate - [select for diffs], Thu Apr 13 03:15:10 1995 UTC (22 years, 6 months ago) by ajs
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Changes since 1.26: +9 -7
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First cut at disk error handling
Revision 1.26 / (download) - annotate - [select for diffs], Fri Mar 31 20:05:30 1995 UTC (22 years, 7 months ago) by doucette
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Changes since 1.25: +16 -12
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Use struct xxx * instead of xxx_t * in xfs header files to avoid unnecessary dependencies between header files.
Revision 1.25 / (download) - annotate - [select for diffs], Thu Feb 9 03:15:55 1995 UTC (22 years, 8 months ago) by ajs
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Changes since 1.24: +12 -4
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259540 - Add definition of XFS_INODE_CLUSTER_SIZE and change the prototype of xfs_dilocate().
Revision 1.24 / (download) - annotate - [select for diffs], Tue Oct 11 22:06:25 1994 UTC (23 years ago) by doucette
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Changes since 1.23: +2 -0
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#ifndef SIM code not needed for programs linking with libsim.a, to make them smaller.
Revision 1.23 / (download) - annotate - [select for diffs], Tue Jul 19 21:58:45 1994 UTC (23 years, 3 months ago) by doucette
Branch: MAIN
Changes since 1.22: +10 -1
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Make xfs_ialloc_read_agi external so xfs_itable.c routines can call it.
Revision 1.22 / (download) - annotate - [select for diffs], Fri May 13 18:56:18 1994 UTC (23 years, 5 months ago) by doucette
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Changes since 1.21: +0 -3
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Remove the sameag flags, don't need them any more.
Revision 1.21 / (download) - annotate - [select for diffs], Wed May 4 23:18:27 1994 UTC (23 years, 5 months ago) by doucette
Branch: MAIN
Changes since 1.20: +5 -7
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Remove xfs_ialloc_find_free, turned into a macro XFS_IALLOC_FIND_FREE.
Revision 1.20 / (download) - annotate - [select for diffs], Wed May 4 00:21:04 1994 UTC (23 years, 5 months ago) by doucette
Branch: MAIN
Changes since 1.19: +44 -71
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Diff to previous 1.19 (colored)
Add new routines xfs_ialloc_compute_maxlevels, find_free, and log_agi for new inode btree scheme; remove xfs_dialloc_next_free; replace xfs_dialloc_ino and xfs_dialloc_finish with xfs_dialloc.
Revision 1.19 / (download) - annotate - [select for diffs], Fri Apr 22 22:58:09 1994 UTC (23 years, 6 months ago) by doucette
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Changes since 1.18: +10 -10
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Change variable names from buf to bp to avoid global buf; also change ...buf to ...bp for consistency.
Revision 1.18 / (download) - annotate - [select for diffs], Sun Apr 17 23:34:27 1994 UTC (23 years, 6 months ago) by doucette
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Changes since 1.17: +5 -4
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Change "functional" macros' names from lower to uppercase, for consistency with everything else.
Revision 1.17 / (download) - annotate - [select for diffs], Tue Apr 12 01:16:44 1994 UTC (23 years, 6 months ago) by doucette
Branch: MAIN
Changes since 1.16: +11 -9
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Split xfs_fsblock_t into multiple types. Use mp instead of sbp in all the address macros.
Revision 1.16 / (download) - annotate - [select for diffs], Wed Apr 6 20:59:07 1994 UTC (23 years, 6 months ago) by ajs
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Changes since 1.15: +42 -7
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Fix prototypes.
Revision 1.15 / (download) - annotate - [select for diffs], Wed Feb 23 21:23:41 1994 UTC (23 years, 8 months ago) by ajs
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Changes since 1.14: +2 -2
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Change the return type of xfs_difree() from xfs_ino_t to void. This is because the next fields in AGINO inodes are maintained entirely at this level.
Revision 1.14 / (download) - annotate - [select for diffs], Fri Feb 18 01:05:45 1994 UTC (23 years, 8 months ago) by wei_hu
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Changes since 1.13: +18 -2
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new i/f to xfs_ialloc and xfs_dialloc to signal caller when current transaction needs to be committed and call retried.
Revision 1.13 / (download) - annotate - [select for diffs], Tue Jan 4 19:34:19 1994 UTC (23 years, 9 months ago) by doucette
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Changes since 1.12: +41 -18
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Reformatting to get function prototypes and definitions to match, both having one-argument-per-line plus a comment.
Revision 1.12 / (download) - annotate - [select for diffs], Thu Dec 30 22:34:19 1993 UTC (23 years, 9 months ago) by doucette
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Changes since 1.11: +30 -31
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Remove old cruft left over from btree days. Reformat/comment the exported function prototypes.
Revision 1.11 / (download) - annotate - [select for diffs], Mon Dec 27 22:24:13 1993 UTC (23 years, 10 months ago) by doucette
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Changes since 1.10: +3 -2
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Split allocation group header into two buffers; make superblock one buffer long instead of one block long.
Revision 1.10 / (download) - annotate - [select for diffs], Tue Dec 14 00:35:58 1993 UTC (23 years, 10 months ago) by doucette
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Changes since 1.9: +1 -1
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Diff to previous 1.9 (colored)
Change xfs_difree to not change the mode and format fields of the inode; let the caller do that (and log them incore). Return the value that the caller should store (and log) in the incore union.
Revision 1.9 / (download) - annotate - [select for diffs], Mon Nov 29 21:39:52 1993 UTC (23 years, 11 months ago) by doucette
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Changes since 1.8: +0 -19
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Change inode mapping scheme from btree to direct.
Revision 1.8 / (download) - annotate - [select for diffs], Fri Nov 19 21:42:01 1993 UTC (23 years, 11 months ago) by doucette
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Changes since 1.7: +7 -5
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Diff to previous 1.7 (colored)
Fix some inode allocation problems - macros for counting blocks were wrong.
Revision 1.7 / (download) - annotate - [select for diffs], Wed Nov 17 01:41:49 1993 UTC (23 years, 11 months ago) by doucette
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Changes since 1.6: +1 -1
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Get rid of warnings from ragnarok compilers by adding casts, changing types, adding lint comments. Get rid of xfs_extdesc_t, replace with xfs_bmbt_rec_t.
Revision 1.6 / (download) - annotate - [select for diffs], Fri Nov 12 18:49:52 1993 UTC (23 years, 11 months ago) by doucette
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Changes since 1.5: +14 -13
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Diff to previous 1.5 (colored)
Make mount struct contain sb, not a pointer to it. Add mp argument to some routines, replace tp with mp in others. Put the mp in the cursor, as well as blocklog.
Revision 1.5 / (download) - annotate - [select for diffs], Tue Nov 9 01:41:10 1993 UTC (23 years, 11 months ago) by doucette
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Changes since 1.4: +9 -32
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More stuff in btree.[ch]. Structure field name changes.
Revision 1.4 / (download) - annotate - [select for diffs], Sat Nov 6 22:04:50 1993 UTC (23 years, 11 months ago) by doucette
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Changes since 1.3: +17 -22
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Diff to previous 1.3 (colored)
Get rid of nested includes. Get rid of dummy freelist inode, use real inode instead. Get rid of xfs_ialloc_block_t, replace with xfs_btree_block_t. Add cur argument to XFS_IALLOC... macros.
Revision 1.3 / (download) - annotate - [select for diffs], Sat Oct 30 00:24:49 1993 UTC (24 years ago) by doucette
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Changes since 1.2: +5 -22
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Diff to previous 1.2 (colored)
Move stuff into xfs_inum.h and xfs_dinode.h. Change types from u_int??_t form to __uint??_t form.
Revision 1.2 / (download) - annotate - [select for diffs], Fri Oct 29 20:35:13 1993 UTC (24 years ago) by doucette
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Changes since 1.1: +4 -3
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Fix includes, get rid of warnings.
Revision 1.1 / (download) - annotate - [select for diffs], Fri Oct 29 17:22:47 1993 UTC (24 years ago) by doucette
Branch: MAIN
Initial revision