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* Merge branch 'for-linus' of ↵Linus Torvalds2012-08-01
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs Pull second vfs pile from Al Viro: "The stuff in there: fsfreeze deadlock fixes by Jan (essentially, the deadlock reproduced by xfstests 068), symlink and hardlink restriction patches, plus assorted cleanups and fixes. Note that another fsfreeze deadlock (emergency thaw one) is *not* dealt with - the series by Fernando conflicts a lot with Jan's, breaks userland ABI (FIFREEZE semantics gets changed) and trades the deadlock for massive vfsmount leak; this is going to be handled next cycle. There probably will be another pull request, but that stuff won't be in it." Fix up trivial conflicts due to unrelated changes next to each other in drivers/{staging/gdm72xx/usb_boot.c, usb/gadget/storage_common.c} * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (54 commits) delousing target_core_file a bit Documentation: Correct s_umount state for freeze_fs/unfreeze_fs fs: Remove old freezing mechanism ext2: Implement freezing btrfs: Convert to new freezing mechanism nilfs2: Convert to new freezing mechanism ntfs: Convert to new freezing mechanism fuse: Convert to new freezing mechanism gfs2: Convert to new freezing mechanism ocfs2: Convert to new freezing mechanism xfs: Convert to new freezing code ext4: Convert to new freezing mechanism fs: Protect write paths by sb_start_write - sb_end_write fs: Skip atime update on frozen filesystem fs: Add freezing handling to mnt_want_write() / mnt_drop_write() fs: Improve filesystem freezing handling switch the protection of percpu_counter list to spinlock nfsd: Push mnt_want_write() outside of i_mutex btrfs: Push mnt_want_write() outside of i_mutex fat: Push mnt_want_write() outside of i_mutex ...
| * gfs2: Convert to new freezing mechanismJan Kara2012-07-31
| | | | | | | | | | | | | | | | | | | | | | | | | | We update gfs2_page_mkwrite() to use new freeze protection and the transaction code to use freeze protection while the transaction is running. That is needed to stop iput() of unlinked file from modifying the filesystem. The rest is handled by the generic code. CC: cluster-devel@redhat.com CC: Steven Whitehouse <swhiteho@redhat.com> Acked-by: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
| * gfs2: Push file_update_time() into gfs2_page_mkwrite()Jan Kara2012-07-30
| | | | | | | | | | | | | | | | CC: Steven Whitehouse <swhiteho@redhat.com> CC: cluster-devel@redhat.com Acked-by: Steven Whitehouse <swhiteho@redhat.com> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmwLinus Torvalds2012-07-24
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull GFS2 updates from Steven Whitehouse. * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw: GFS2: Eliminate 64-bit divides GFS2: Reduce file fragmentation GFS2: kernel panic with small gfs2 filesystems - 1 RG GFS2: Fixing double brelse'ing bh allocated in gfs2_meta_read when EIO occurs GFS2: Combine functions get_local_rgrp and gfs2_inplace_reserve GFS2: Add kobject release method GFS2: Size seq_file buffer more carefully GFS2: Use seq_vprintf for glocks debugfs file seq_file: Add seq_vprintf function and export it GFS2: Use lvbs for storing rgrp information with mount option GFS2: Cache last hash bucket for glock seq_files GFS2: Increase buffer size for glocks and glstats debugfs files GFS2: Fix error handling when reading an invalid block from the journal GFS2: Add "top dir" flag support GFS2: Fold quota data into the reservations struct GFS2: Extend the life of the reservations
| * GFS2: Eliminate 64-bit dividesBob Peterson2012-07-20
| | | | | | | | | | | | | | | | | | This patch removes the 64-bit divides introduced in the previous patch in favor of shifting, so that it will compile properly on 32-bit machines. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Reduce file fragmentationBob Peterson2012-07-19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch reduces GFS2 file fragmentation by pre-reserving blocks. The resulting improved on disk layout greatly speeds up operations in cases which would have resulted in interlaced allocation of blocks previously. A typical example of this is 10 parallel dd processes, each writing to a file in a common dirctory. The implementation uses an rbtree of reservations attached to each resource group (and each inode). Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: kernel panic with small gfs2 filesystems - 1 RGAbhijith Das2012-07-18
| | | | | | | | | | | | | | | | | | | | In the unlikely setup where there's only one resource group in the gfs2 filesystem, gfs2_rgrpd_get_next() returns a NULL rgd that is not dealt with properly, causing a kernel NULL ptr dereference. This patch fixes this issue. Signed-off-by: Abhi Das <adas@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Fixing double brelse'ing bh allocated in gfs2_meta_read when EIO occursMasatake YAMATO2012-06-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes buffer_head double free in following code path: gfs2_block_map => gfs2_meta_inode_buffer => gfs2_meta_indirect_buffer => gfs2_meta_read => release_metapath gfs2_block_map calls gfs2_meta_inode_buffer with &mp.mp_bh[0] as an argument. mp.mp_bh are filled with zero at the beginning of gfs2_block_map. If gfs2_meta_inode_buffer returns non-zero value, gfs2_block_map calls release_metapath to free buffers chained to mp.mp_bh. release_metapath checks each slot of mp.mp_bh[i] and free(with brelse) unless the slot is filled with NULL. &mp.mp_bh[0] passed to gfs2_meta_inode_buffer is filled at gfs2_meta_read. gfs2_meta_read is filled a buffer allocated with gfs2_getbuf even if EIO occurs. When EIO occurs, the allocated buffer is brelse'ed though the pointer(wrong poiner) points the brelse'ed is passed back to caller via an argument bhp. gfs2_meta_indirect_buffer, the caller also pass the wrong pointer to its caller with EIO. Finally gfs2_block_map gets both EIO and &mp.mp_bh[0] filled with the wrong pointer. release_metapath calls brelse again on the wrong pointer. Signed-off-by: Masatake YAMATO <yamato@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Combine functions get_local_rgrp and gfs2_inplace_reserveBob Peterson2012-06-14
| | | | | | | | | | | | | | | | | | This function combines rgrp functions get_local_rgrp and gfs2_inplace_reserve so that the double retry loop is gone. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Add kobject release methodBob Peterson2012-06-13
| | | | | | | | | | | | | | | | | | | | This patch adds a kobject release function that properly maintains the kobject use count, so that accesses to the sysfs files do not cause an access to freed kernel memory after an unmount. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Size seq_file buffer more carefullySteven Whitehouse2012-06-11
| | | | | | | | | | | | | | | | This places a limit on the buffer size for archs with larger PAGE_SIZE. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Reported-by: Eric Dumazet <eric.dumazet@gmail.com>
| * GFS2: Use seq_vprintf for glocks debugfs fileSteven Whitehouse2012-06-11
| | | | | | | | | | | | | | | | Make use of the newly added seq_vprintf() function. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com> Reported-by: Eric Dumazet <eric.dumazet@gmail.com> Acked-by: Al Viro <viro@ZenIV.linux.org.uk>
| * GFS2: Use lvbs for storing rgrp information with mount optionBenjamin Marzinski2012-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Instead of reading in the resource groups when gfs2 is checking for free space to allocate from, gfs2 can store the necessary infromation in the resource group's lvb. Also, instead of searching for unlinked inodes in every resource group that's checked for free space, gfs2 can store the number of unlinked but inodes in the lvb, and only check for unlinked inodes if it will find some. The first time a resource group is locked, the lvb must initialized. Since this involves counting the unlinked inodes in the resource group, this takes a little extra time. But after that, if the resource group is locked with GL_SKIP, the buffer head won't be read in unless it's actually needed. Enabling the resource groups lvbs is done via the rgrplvb mount option. If this option isn't set, the lvbs will still be set and updated, but they won't be verfied or used by the filesystem. To safely turn on this option, all of the nodes mounting the filesystem must be running code with this patch, and the filesystem must have been completely unmounted since they were updated. Signed-off-by: Benjamin Marzinski <bmarzins@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Cache last hash bucket for glock seq_filesSteven Whitehouse2012-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the glocks and glstats seq_files, which are exposed via debugfs we should cache the most recent hash bucket, along with the offset into that bucket. This allows us to restart from that point, rather than having to begin at the beginning each time. This is an idea from Eric Dumazet, however I've slightly extended it so that if the position from which we are due to start is at any point beyond the last cached point, we start from the last cached point, plus whatever is the appropriate offset. I don't really expect people to be lseeking around these files, but if they did so with only positive offsets, then we'd still get some of the benefit of using a cached offset. With my simple test of around 200k entries in the file, I'm seeing an approx 10x speed up. Cc: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Increase buffer size for glocks and glstats debugfs filesSteven Whitehouse2012-06-07
| | | | | | | | | | | | | | | | | | | | As per Al Viro's suggestion, this increases the buffer size used for these two files. This provides a speed up of slightly less than 8x (i.e. proportional to the buffer size) for cases when we have large numbers of glocks. Cc: Al Viro <viro@ZenIV.linux.org.uk> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Fix error handling when reading an invalid block from the journalSteven Whitehouse2012-06-06
| | | | | | | | | | | | | | | | | | | | | | When we read an invalid block from the journal, we should not call withdraw, but simply print a message and return an error. It is up to the caller to then handle that error. In the case of mount that means a failed mount, rather than a withdraw (requiring a reboot). In the case of recovering another nodes journal then we return an error via the uevent. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Add "top dir" flag supportSteven Whitehouse2012-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds support for the "top dir" flag. Currently this is unused but a subsequent patch is planned which will add support for the Orlov allocation policy when allocating subdirectories in a parent with this flag set. In order to ensure backward compatible behaviour, mkfs.gfs2 does not currently tag the root directory with this flag, it must always be set manually. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Fold quota data into the reservations structBob Peterson2012-06-06
| | | | | | | | | | | | | | | | | | | | This patch moves the ancillary quota data structures into the block reservations structure. This saves GFS2 some time and effort in allocating and deallocating the qadata structure. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * GFS2: Extend the life of the reservationsBob Peterson2012-06-06
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch lengthens the lifespan of the reservations structure for inodes. Before, they were allocated and deallocated for every write operation. With this patch, they are allocated when the first write occurs, and deallocated when the last process closes the file. It's more efficient to do it this way because it saves GFS2 a lot of unnecessary allocates and frees. It also gives us more flexibility for the future: (1) we can now fold the qadata structure back into the structure and save those alloc/frees, (2) we can use this for multi-block reservations. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
* | quota: Move quota syncing to ->sync_fs methodJan Kara2012-07-22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since the moment writes to quota files are using block device page cache and space for quota structures is reserved at the moment they are first accessed we have no reason to sync quota before inode writeback. In fact this order is now only harmful since quota information can easily change during inode writeback (either because conversion of delayed-allocated extents or simply because of allocation of new blocks for simple filesystems not using page_mkwrite). So move syncing of quota information after writeback of inodes into ->sync_fs method. This way we do not have to use ->quota_sync callback which is primarily intended for use by quotactl syscall anyway and we get rid of calling ->sync_fs() twice unnecessarily. We skip quota syncing for OCFS2 since it does proper quota journalling in all cases (unlike ext3, ext4, and reiserfs which also support legacy non-journalled quotas) and thus there are no dirty quota structures. CC: "Theodore Ts'o" <tytso@mit.edu> CC: Joel Becker <jlbec@evilplan.org> CC: reiserfs-devel@vger.kernel.org Acked-by: Steven Whitehouse <swhiteho@redhat.com> Acked-by: Dave Kleikamp <shaggy@kernel.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | quota: Split dquot_quota_sync() to writeback and cache flushing partJan Kara2012-07-22
| | | | | | | | | | | | | | | | | | | | | | | | Split off part of dquot_quota_sync() which writes dquots into a quota file to a separate function. In the next patch we will use the function from filesystems and we do not want to abuse ->quota_sync quotactl callback more than necessary. Acked-by: Steven Whitehouse <swhiteho@redhat.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | VFS: Pass mount flags to sget()David Howells2012-07-14
| | | | | | | | | | | | | | | | | | Pass mount flags to sget() so that it can use them in initialising a new superblock before the set function is called. They could also be passed to the compare function. Signed-off-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | don't pass nameidata to ->create()Al Viro2012-07-14
| | | | | | | | | | | | | | | | boolean "does it have to be exclusive?" flag is passed instead; Local filesystem should just ignore it - the object is guaranteed not to be there yet. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | stop passing nameidata to ->lookup()Al Viro2012-07-14
| | | | | | | | | | | | | | | | | | Just the flags; only NFS cares even about that, but there are legitimate uses for such argument. And getting rid of that completely would require splitting ->lookup() into a couple of methods (at least), so let's leave that alone for now... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* | stop passing nameidata * to ->d_revalidate()Al Viro2012-07-14
|/ | | | | | Just the lookup flags. Die, bastard, die... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* ->encode_fh() API changeAl Viro2012-05-29
| | | | | | | | | pass inode + parent's inode or NULL instead of dentry + bool saying whether we want the parent or not. NOTE: that needs ceph fix folded in. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge tag 'writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linuxLinus Torvalds2012-05-28
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull writeback tree from Wu Fengguang: "Mainly from Jan Kara to avoid iput() in the flusher threads." * tag 'writeback' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux: writeback: Avoid iput() from flusher thread vfs: Rename end_writeback() to clear_inode() vfs: Move waiting for inode writeback from end_writeback() to evict_inode() writeback: Refactor writeback_single_inode() writeback: Remove wb->list_lock from writeback_single_inode() writeback: Separate inode requeueing after writeback writeback: Move I_DIRTY_PAGES handling writeback: Move requeueing when I_SYNC set to writeback_sb_inodes() writeback: Move clearing of I_SYNC into inode_sync_complete() writeback: initialize global_dirty_limit fs: remove 8 bytes of padding from struct writeback_control on 64 bit builds mm: page-writeback.c: local functions should not be exposed globally
| * vfs: Rename end_writeback() to clear_inode()Jan Kara2012-05-06
| | | | | | | | | | | | | | | | | | After we moved inode_sync_wait() from end_writeback() it doesn't make sense to call the function end_writeback() anymore. Rename it to clear_inode() which well says what the function really does - set I_CLEAR flag. Signed-off-by: Jan Kara <jack@suse.cz> Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
* | Merge tag 'dlm-3.5' of ↵Linus Torvalds2012-05-22
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm Pull dlm updates from David Teigland: "This set includes some minor fixes and improvements. The one large patch addresses the special "nodir" mode, which has been a long neglected proof of concept, but with these fixes seems to be quite usable. It allows the resource master to be assigned statically instead of dynamically, which can improve performance if there is little locality and most resources are shared." * tag 'dlm-3.5' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm: dlm: NULL dereference on failure in kmem_cache_create() gfs2: fix recovery during unmount dlm: fixes for nodir mode dlm: improve error and debug messages dlm: avoid unnecessary search in search_rsb dlm: limit rcom debug messages dlm: fix waiter recovery dlm: prevent connections during shutdown
| * | gfs2: fix recovery during unmountDavid Teigland2012-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | Journal recovery from lock_dlm should not be ignored if there is an unmount in progress. Ignoring it will causes the recovery to get stuck. The recovery process will correctly handle an in-progess unmount. Signed-off-by: David Teigland <teigland@redhat.com>
| * | dlm: fixes for nodir modeDavid Teigland2012-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The "nodir" mode (statically assign master nodes instead of using the resource directory) has always been highly experimental, and never seriously used. This commit fixes a number of problems, making nodir much more usable. - Major change to recovery: recover all locks and restart all in-progress operations after recovery. In some cases it's not possible to know which in-progess locks to recover, so recover all. (Most require recovery in nodir mode anyway since rehashing changes most master nodes.) - Change the way nodir mode is enabled, from a command line mount arg passed through gfs2, into a sysfs file managed by dlm_controld, consistent with the other config settings. - Allow recovering MSTCPY locks on an rsb that has not yet been turned into a master copy. - Ignore RCOM_LOCK and RCOM_LOCK_REPLY recovery messages from a previous, aborted recovery cycle. Base this on the local recovery status not being in the state where any nodes should be sending LOCK messages for the current recovery cycle. - Hold rsb lock around dlm_purge_mstcpy_locks() because it may run concurrently with dlm_recover_master_copy(). - Maintain highbast on process-copy lkb's (in addition to the master as is usual), because the lkb can switch back and forth between being a master and being a process copy as the master node changes in recovery. - When recovering MSTCPY locks, flag rsb's that have non-empty convert or waiting queues for granting at the end of recovery. (Rename flag from LOCKS_PURGED to RECOVER_GRANT and similar for the recovery function, because it's not only resources with purged locks that need grant a grant attempt.) - Replace a couple of unnecessary assertion panics with error messages. Signed-off-by: David Teigland <teigland@redhat.com>
* | | Merge git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmwLinus Torvalds2012-05-21
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull GFS2 changes from Steven Whitehouse. * git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw: (24 commits) GFS2: Fix quota adjustment return code GFS2: Add rgrp information to block_alloc trace point GFS2: Eliminate unused "new" parameter to gfs2_meta_indirect_buffer GFS2: Update glock doc to add new stats info GFS2: Update main gfs2 doc GFS2: Remove redundant metadata block type check GFS2: Fix sgid propagation when using ACLs GFS2: eliminate log elements and simplify GFS2: Eliminate vestigial sd_log_le_rg GFS2: Eliminate needless parameter from function gfs2_setbit GFS2: Log code fixes GFS2: Remove unused argument from gfs2_internal_read GFS2: Remove bd_list_tr GFS2: Remove duplicate log code GFS2: Clean up log write code path GFS2: Use variable rather than qa to determine if unstuff necessary GFS2: Change variable blk to biblk GFS2: Fix function parameter comments in rgrp.c GFS2: Eliminate offset parameter to gfs2_setbit GFS2: Use slab for block reservation memory ...
| * | | GFS2: Fix quota adjustment return codeBob Peterson2012-05-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes function gfs2_adjust_quota so that it properly returns a good (zero) return code on the normal path through the code. Without this, mounting GFS2 with -o quota=account periodically gave this error message: GFS2: fsid=cluster:fs: gfs2_quotad: sync error -5 Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Add rgrp information to block_alloc trace pointBob Peterson2012-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a second attempt at a patch that adds rgrp information to the block allocation trace point for GFS2. As suggested, the patch was modified to list the rgrp information _after_ the fields that exist today. Again, the reason for this patch is to allow us to trace and debug problems with the block reservations patch, which is still in the works. We can debug problems with reservations if we can see what block allocations result from the block reservations. It may also be handy in figuring out if there are problems in rgrp free space accounting. In other words, we can use it to track the rgrp and its free space along side the allocations that are taking place. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Eliminate unused "new" parameter to gfs2_meta_indirect_bufferBob Peterson2012-05-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It turns out that the "new" parameter to function gfs2_meta_indirect_buffer was always being passed in as zero. Therefore, this patch eliminates it and simplifies the function. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Remove redundant metadata block type checkBob Peterson2012-05-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes a redundant metadata block check. See description below. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Fix sgid propagation when using ACLsSteven Whitehouse2012-05-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This cleans up the mode setting code when creating inodes. The SGID bit was being reset by setattr_copy() when the user creating a subdirectory was not in the owning group. When ACLs are in use this SGID bit should have been propagated if the ACL allows creation of a subdirectory. GFS2's behaviour now matches that of the other ACL supporting filesystems in this regard. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: eliminate log elements and simplifyBob Peterson2012-05-02
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch eliminates the gfs2_log_element data structure and rolls its two components into the gfs2_bufdata. This makes the code easier to understand and makes it easier to migrate to a rbtree to keep the list sorted. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Eliminate vestigial sd_log_le_rgBob Peterson2012-04-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch eliminates gfs2 superblock variable sd_log_le_rg which is no longer used. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Eliminate needless parameter from function gfs2_setbitBob Peterson2012-04-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch eliminates parameter "buf1" from function gfs2_setbit. This is possible because it was always passed in as bi->bi_bh->b_data. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Log code fixesSteven Whitehouse2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes a log lock from around atomic operation where it is not needed, removes an unused variable, and also changes a void pointer used incorrectly to a struct page pointer. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Remove unused argument from gfs2_internal_readAndrew Price2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | gfs2_internal_read accepts an unused ra_state argument, left over from when we did readahead on the rindex. Since there are currently no plans to add back this readahead, this patch removes the ra_state parameter and updates the functions which call gfs2_internal_read accordingly. Signed-off-by: Andrew Price <anprice@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Remove bd_list_trSteven Whitehouse2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is another clean up in the logging code. This per-transaction list was largely unused. Its main function was to ensure that the number of buffers in a transaction was correct, however that counter was only used to check the number of buffers in the bd_list_tr, plus an assert at the end of each transaction. With the assert now changed to use the calculated buffer counts, we can remove both bd_list_tr and its associated counter. This should make the code easier to understand as well as shrinking a couple of structures. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Remove duplicate log codeSteven Whitehouse2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The main part of this patch merges the two functions used to write metadata and data buffers to the log. Most of the code is common between the two functions, so this provides a nice clean up, and makes the code more readable. The gfs2_get_log_desc() function is also extended to take two more arguments, and thus avoid having to set the length and data1 fields of this strucuture as a separate operation. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Clean up log write code pathSteven Whitehouse2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Prior to this patch, we have two ways of sending i/o to the log. One of those is used when we need to allocate both the data to be written itself and also a buffer head to submit it. This is done via sb_getblk and friends. This is used mostly for writing log headers. The other method is used when writing blocks which have some in-place counterpart. This is the case for all the metadata blocks which are journalled, and when journaled data is in use, for unescaped journalled data blocks. This patch replaces both of those two methods, and about half a dozen separate i/o submission points with a single i/o submission function. We also go direct to bio rather than using buffer heads, since this allows us to build i/o requests of the maximum size for the block device in question. It also reduces the memory required for flushing the log, which can be very useful in low memory situations. Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Use variable rather than qa to determine if unstuff necessaryBob Peterson2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the future, the qadata structure will be eliminated and merged back in with the block reservation structure, after we extend the lifespan of that. This patch is a step forward in eliminating the qadata structure. It adds a variable to the do_grow function to determine when unstuffing is necessary, and has been done. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Change variable blk to biblkBob Peterson2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In the resource group code, we have no less than three different kinds of block references: block relative to the file system (u64), block relative to the rgrp (u32), and block relative to the bitmap. This is a small step to making the code more readable; it renames variable blk to biblk to solidify in my mind that it's relative to the bitmap and nothing else. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Fix function parameter comments in rgrp.cBob Peterson2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch just fixes a bunch of function parameter comments. Slowly, over the years, the comments have gotten out of date (mostly my fault, as I haven't been good at keeping them up to date). This patch rectifies some of that. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Eliminate offset parameter to gfs2_setbitBob Peterson2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch eliminates a redundant parameter. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
| * | | GFS2: Use slab for block reservation memoryBob Peterson2012-04-24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch changes block reservations so it uses slab storage. Signed-off-by: Bob Peterson <rpeterso@redhat.com> Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
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