aboutsummaryrefslogtreecommitdiffstats
path: root/fs/gfs2/ondisk.c
Commit message (Collapse)AuthorAgeFilesLines
* [PATCH] remove many unneeded #includes of sched.hTim Schmielau2007-02-141-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | After Al Viro (finally) succeeded in removing the sched.h #include in module.h recently, it makes sense again to remove other superfluous sched.h includes. There are quite a lot of files which include it but don't actually need anything defined in there. Presumably these includes were once needed for macros that used to live in sched.h, but moved to other header files in the course of cleaning it up. To ease the pain, this time I did not fiddle with any header files and only removed #includes from .c-files, which tend to cause less trouble. Compile tested against 2.6.20-rc2 and 2.6.20-rc2-mm2 (with offsets) on alpha, arm, i386, ia64, mips, powerpc, and x86_64 with allnoconfig, defconfig, allmodconfig, and allyesconfig as well as a few randconfigs on x86_64 and all configs in arch/arm/configs on arm. I also checked that no new warnings were introduced by the patch (actually, some warnings are removed that were emitted by unnecessarily included header files). Signed-off-by: Tim Schmielau <tim@physik3.uni-rostock.de> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [GFS2] Don't copy meta_header for rgrp in and outSteven Whitehouse2006-11-301-11/+0
| | | | | | | | | | | | The meta_header for an ondisk rgrp never changes, so there is no point copying it in and back out to disk. Also there is no reason to keep a copy for each rgrp in memory. The code already checks to ensure that the header is correct before it calls the routine to copy the data in, so that we don't even need to check whether its correct on disk in the functions in ondisk.c Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Shrink gfs2_inode (7) - di_payload_formatSteven Whitehouse2006-11-301-3/+3
| | | | | | | | | | This is almost never used. Its there for backward compatibility with GFS1. It doesn't need its own field since it can always be calculated from the inode mode & flags. This saves a bit more space in the gfs2_inode. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Shrink gfs2_inode (6) - di_atime/di_mtime/di_ctimeSteven Whitehouse2006-11-301-7/+3
| | | | | | | Remove the di_[amc]time fields and use inode->i_[amc]time fields instead. This saves 24 bytes from the gfs2_inode. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Shrink gfs2_inode (5) - di_nlinkSteven Whitehouse2006-11-301-2/+1
| | | | | | | | Remove the di_nlink field in favour of inode->i_nlink and update the nlink handling to use the proper macros. This saves 4 bytes. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Shrink gfs2_inode (4) - di_uid/di_gidSteven Whitehouse2006-11-301-4/+2
| | | | | | | Remove duplicate di_uid/di_gid fields in favour of using inode->i_uid/inode->i_gid instead. This saves 8 bytes. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Shrink gfs2_inode (3) - di_modeSteven Whitehouse2006-11-301-2/+1
| | | | | | | This removes the duplicate di_mode field in favour of using the inode->i_mode field. This saves 4 bytes. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Shrink gfs2_inode (2) - di_major/di_minorSteven Whitehouse2006-11-301-4/+0
| | | | | | | | This removes the device numbers from this structure by using inode->i_rdev instead. It also cleans up the code in gfs2_mknod. It results in shrinking the gfs2_inode by 8 bytes. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Shrink gfs2_inode (1) - di_header/di_numSteven Whitehouse2006-11-301-13/+9
| | | | | | | | | | | | The metadata header doesn't need to be stored in the incore struct gfs2_inode since its constant, and this patch removes it. Also, there is already a field for the inode's number in the struct gfs2_inode, so we don't need one in struct gfs2_dinode_host as well. This saves 28 bytes of space in the struct gfs2_inode. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Change argument to gfs2_dinode_printSteven Whitehouse2006-11-301-1/+3
| | | | | | | | Change argument for gfs2_dinode_print in order to prepare for removal of duplicate fields between struct inode and struct gfs2_dinode_host. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Move gfs2_dinode_in to inode.cSteven Whitehouse2006-11-301-35/+1
| | | | | | | gfs2_dinode_in() is only ever called from one place, so move it to that place (in inode.c) and make it static. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Change argument to gfs2_dinode_inSteven Whitehouse2006-11-301-2/+2
| | | | | | | This is a preliminary patch to enable the removal of fields in gfs2_dinode_host which are duplicated in struct inode. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Change argument of gfs2_dinode_outSteven Whitehouse2006-11-301-1/+4
| | | | | | | | | | Everywhere this was called, a struct gfs2_inode was available, but despite that, it was always called with a struct gfs2_dinode as an argument. By making this change it paves the way to start eliminating fields duplicated between the kernel's struct inode and the struct gfs2_dinode. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split and annotate gfs2_quota_changeAl Viro2006-11-301-1/+1
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split and annotate gfs2_statfs_changeAl Viro2006-11-301-2/+2
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split and annotate gfs2_quotaAl Viro2006-11-301-1/+1
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split and annotate gfs2_inumAl Viro2006-11-301-3/+3
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split and annotate gfs_rindexAl Viro2006-11-301-2/+2
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split and annotate gfs2_meta_headerAl Viro2006-11-301-3/+3
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split and annotate gfs2_log_headAl Viro2006-11-301-1/+1
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split and annotate gfs2_inum_rangeAl Viro2006-11-301-2/+2
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split and annotate gfs2_rgrpAl Viro2006-11-301-2/+2
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split gfs2_sbAl Viro2006-11-301-1/+1
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] split gfs2_dinode into on-disk and host variantsAl Viro2006-11-301-3/+3
| | | | | | | | | | The latter is used as part of gfs2-private part of struct inode. It actually stores a lot of fields differently; for now the declaration is just cloned, inode field is swtiched and changes propagated. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Use const in endian conversion routinesSteven Whitehouse2006-09-041-39/+39
| | | | | | | Use const in endian conversion and printing of on-disk structures. Cc: Jan Engelhardt <jengelh@linux01.gwdg.de> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Update copyright, tidy up incore.hSteven Whitehouse2006-09-011-1/+1
| | | | | | | | | | | | | | | | | | | | | | | As per comments from Jan Engelhardt <jengelh@linux01.gwdg.de> this updates the copyright message to say "version" in full rather than "v.2". Also incore.h has been updated to remove forward structure declarations which are not required. The gfs2_quota_lvb structure has now had endianess annotations added to it. Also quota.c has been updated so that we now store the lvb data locally in endian independant format to avoid needing a structure in host endianess too. As a result the endianess conversions are done as required at various points and thus the conversion routines in lvb.[ch] are no longer required. I've moved the one remaining constant in lvb.h thats used into lm.h and removed the unused lvb.[ch]. I have not changed the HIF_ constants. That is left to a later patch which I hope will unify the gh_flags and gh_iflags fields of the struct gfs2_holder. Cc: Jan Engelhardt <jengelh@linux01.gwdg.de> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Add generation numberSteven Whitehouse2006-07-111-1/+5
| | | | | | | | | | | | | | | | | This adds a generation number for the eventual use of NFS to the ondisk inode. Its backward compatible with the current code since it doesn't really matter what the generation number is to start with, and indeed since its set to zero, due to it being taken from padding in both the inode and rgrp header, it should be fine. The eventual plan is to use this rather than no_formal_ino in the NFS filehandles. At that point no_formal_ino will be unused. At the same time we also add a releasepages call back to the "normal" address space for gfs2 inodes. Also I've removed a one-linrer function thats not required any more. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Fix unlinked file handlingSteven Whitehouse2006-06-141-17/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes the way we have been dealing with unlinked, but still open files. It removes all limits (other than memory for inodes, as per every other filesystem) on numbers of these which we can support on GFS2. It also means that (like other fs) its the responsibility of the last process to close the file to deallocate the storage, rather than the person who did the unlinking. Note that with GFS2, those two events might take place on different nodes. Also there are a number of other changes: o We use the Linux inode subsystem as it was intended to be used, wrt allocating GFS2 inodes o The Linux inode cache is now the point which we use for local enforcement of only holding one copy of the inode in core at once (previous to this we used the glock layer). o We no longer use the unlinked "special" file. We just ignore it completely. This makes unlinking more efficient. o We now use the 4th block allocation state. The previously unused state is used to track unlinked but still open inodes. o gfs2_inoded is no longer needed o Several fields are now no longer needed (and removed) from the in core struct gfs2_inode o Several fields are no longer needed (and removed) from the in core superblock There are a number of future possible optimisations and clean ups which have been made possible by this patch. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Casts for printing 64bit numbersSteven Whitehouse2006-05-241-12/+12
| | | | Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Update copyright date to 2006Steven Whitehouse2006-05-181-1/+1
| | | | Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Remove semaphore.h from C filesSteven Whitehouse2006-05-181-1/+0
| | | | | | | We no longer use semaphores, everything has been converted to mutex or rwsem, so we don't need to include this header any more. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Remove some unused codeSteven Whitehouse2006-04-281-225/+0
| | | | | | | Remove some of the unused code flagged up by Adrian Bunk. Cc: Adrian Bunk <bunk@stusta.de> Signed-off-by: Steven Whitehouse
* [GFS2] [-mm patch] fs/gfs2/: possible cleanupsAdrian Bunk2006-04-281-4/+34
| | | | | | | | | | | | This patch contains the following possible cleanups: - make needlessly global code static - #if 0 unused functions - remove the following global function that was both unused and unimplemented: - super.c: gfs2_do_upgrade() Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS] Fix bug in endian conversion for metadata headerSteven Whitehouse2006-03-301-4/+4
| | | | | | | In some cases 16 bit functions were being used rather than 32 bit functions. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Fix bug in directory code and tidy upSteven Whitehouse2006-03-201-12/+1
| | | | | | | | | | | | | | | | | | | | | | Due to a typo, the dir leaf split operation was (for the first split in a directory) writing the new hash vaules at the wrong offset. This is now fixed. Also some other tidy ups are included: - We use GFS2's hash function for dentries (see ops_dentry.c) so that we don't have to keep recalculating the hash values. - A lot of common code is eliminated between the various directory lookup routines. - Better error checking on directory lookup (previously different routines checked for different errors) - The leaf split operation has a couple of redundant operations removed from it, so it should be faster. There is still further scope for further clean ups in the directory code, and readdir in particular could do with slimming down a bit. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] 80 Column audit of GFS2Steven Whitehouse2006-02-271-1/+2
| | | | | | | Requested by: Prarit Bhargava <prarit@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Audit printk and kmallocSteven Whitehouse2006-02-271-5/+5
| | | | | | | | | | | All printk calls now have KERN_ set where required and a couple of kmalloc(), memset(.., 0, ...) calls changed to kzalloc(). This is in response to comments from: Pekka Enberg <penberg@cs.helsinki.fi> and Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Update init_dinode() to reduce stack usageSteven Whitehouse2006-01-181-2/+2
| | | | | | | | | | We no longer allocate a dinode on the stack in init_dinode() and we no longer use gfs2_dinode_out (eliminating one copy) and gfs2_meta_header_in (eliminating another copy). The meta_header_in fucntion is now no longer referenced from outside gfs2_ondisk.c, so make it static. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] Remove unused code from ondisk.c/gfs2_ondisk.hSteven Whitehouse2006-01-181-63/+0
| | | | | | | Removal of unused conversion functions from ondisk.c and gfs2_ondisk.h Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* [GFS2] The core of GFS2David Teigland2006-01-161-0/+590
This patch contains all the core files for GFS2. Signed-off-by: David Teigland <teigland@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>