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path: root/fs/ocfs2/namei.c
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2012-07-14don't pass nameidata to ->create()Al Viro
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>
2012-07-14stop passing nameidata to ->lookup()Al Viro
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>
2012-05-30ocfs: simplify symlink handlingAl Viro
seeing that "fast" symlinks still get allocation + copy, we might as well simply switch them to pagecache-based variant of ->follow_link(); just need an appropriate ->readpage() for them... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-02-14ocfs2: deal with wraparounds of i_nlink in ocfs2_rename()Al Viro
unfortunately, nlink_t may be smaller than 32 bits and ->i_nlink on ocfs2 can grow up to 0xffffffff; storing it in nlink_t variable will lose upper bits on such architectures. Needs to be made u32, until we get kernel-side nlink_t uniformly 32bit... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04ocfs2: propagate umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch ->mknod() to umode_tAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch ->create() to umode_tAl Viro
vfs_create() ignores everything outside of 16bit subset of its mode argument; switching it to umode_t is obviously equivalent and it's the only caller of the method Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2012-01-04switch vfs_mkdir() and ->mkdir() to umode_tAl Viro
vfs_mkdir() gets int, but immediately drops everything that might not fit into umode_t and that's the only caller of ->mkdir()... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-11-02filesystems: add set_nlink()Miklos Szeredi
Replace remaining direct i_nlink updates with a new set_nlink() updater function. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: Toshiyuki Okajima <toshi.okajima@jp.fujitsu.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-11-02filesystems: add missing nlink wrappersMiklos Szeredi
Replace direct i_nlink updates with the respective updater function (inc_nlink, drop_nlink, clear_nlink, inode_dec_link_count). Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
2011-11-02ocfs2: remove unnecessary nlink settingMiklos Szeredi
alloc_inode() initializes i_nlink to 1. Remove unnecessary re-initialization. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> CC: Joel Becker <jlbec@evilplan.org> CC: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Christoph Hellwig <hch@lst.de>
2011-07-25fs: take the ACL checks to common codeChristoph Hellwig
Replace the ->check_acl method with a ->get_acl method that simply reads an ACL from disk after having a cache miss. This means we can replace the ACL checking boilerplate code with a single implementation in namei.c. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-07-20kill check_acl callback of generic_permission()Al Viro
its value depends only on inode and does not change; we might as well store it in ->i_op->check_acl and be done with that. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-03-31Fix common misspellingsLucas De Marchi
Fixes generated by 'codespell' and manually reviewed. Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
2011-03-28Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (39 commits) Treat writes as new when holes span across page boundaries fs,ocfs2: Move o2net_get_func_run_time under CONFIG_OCFS2_FS_STATS. ocfs2/dlm: Move kmalloc() outside the spinlock ocfs2: Make the left masklogs compat. ocfs2: Remove masklog ML_AIO. ocfs2: Remove masklog ML_UPTODATE. ocfs2: Remove masklog ML_BH_IO. ocfs2: Remove masklog ML_JOURNAL. ocfs2: Remove masklog ML_EXPORT. ocfs2: Remove masklog ML_DCACHE. ocfs2: Remove masklog ML_NAMEI. ocfs2: Remove mlog(0) from fs/ocfs2/dir.c ocfs2: remove NAMEI from symlink.c ocfs2: Remove masklog ML_QUOTA. ocfs2: Remove mlog(0) from quota_local.c. ocfs2: Remove masklog ML_RESERVATIONS. ocfs2: Remove masklog ML_XATTR. ocfs2: Remove masklog ML_SUPER. ocfs2: Remove mlog(0) from fs/ocfs2/heartbeat.c ocfs2: Remove mlog(0) from fs/ocfs2/slot_map.c ... Fix up trivial conflict in fs/ocfs2/super.c
2011-03-08Merge branch 'master' of git://git.infradead.org/users/eparis/selinux into nextJames Morris
2011-02-23ocfs2: Remove masklog ML_NAMEI.Tao Ma
Remove mlog(0) from fs/ocfs2/namei.c and the masklog NAMEI finally. Signed-off-by: Tao Ma <boyu.mt@taobao.com>
2011-03-07ocfs2: Remove EXIT from masklog.Tao Ma
mlog_exit is used to record the exit status of a function. But because it is added in so many functions, if we enable it, the system logs get filled up quickly and cause too much I/O. So actually no one can open it for a production system or even for a test. This patch just try to remove it or change it. So: 1. if all the error paths already use mlog_errno, it is just removed. Otherwise, it will be replaced by mlog_errno. 2. if it is used to print some return value, it is replaced with mlog(0,...). mlog_exit_ptr is changed to mlog(0. All those mlog(0,...) will be replaced with trace events later. Signed-off-by: Tao Ma <boyu.mt@taobao.com>
2011-02-21ocfs2: Remove ENTRY from masklog.Tao Ma
ENTRY is used to record the entry of a function. But because it is added in so many functions, if we enable it, the system logs get filled up quickly and cause too much I/O. So actually no one can open it for a production system or even for a test. So for mlog_entry_void, we just remove it. for mlog_entry(...), we replace it with mlog(0,...), and they will be replace by trace event later. Signed-off-by: Tao Ma <boyu.mt@taobao.com>
2011-02-01fs/vfs/security: pass last path component to LSM on inode creationEric Paris
SELinux would like to implement a new labeling behavior of newly created inodes. We currently label new inodes based on the parent and the creating process. This new behavior would also take into account the name of the new object when deciding the new label. This is not the (supposed) full path, just the last component of the path. This is very useful because creating /etc/shadow is different than creating /etc/passwd but the kernel hooks are unable to differentiate these operations. We currently require that userspace realize it is doing some difficult operation like that and than userspace jumps through SELinux hoops to get things set up correctly. This patch does not implement new behavior, that is obviously contained in a seperate SELinux patch, but it does pass the needed name down to the correct LSM hook. If no such name exists it is fine to pass NULL. Signed-off-by: Eric Paris <eparis@redhat.com>
2011-01-13switch ocfs2, close racesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2011-01-11Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (22 commits) MAINTAINERS: Update Joel Becker's email address ocfs2: Remove unused truncate function from alloc.c ocfs2/cluster: dereferencing before checking in nst_seq_show() ocfs2: fix build for OCFS2_FS_STATS not enabled ocfs2/cluster: Show o2net timing statistics ocfs2/cluster: Track process message timing stats for each socket ocfs2/cluster: Track send message timing stats for each socket ocfs2/cluster: Use ktime instead of timeval in struct o2net_sock_container ocfs2/cluster: Replace timeval with ktime in struct o2net_send_tracking ocfs2: Add DEBUG_FS dependency ocfs2/dlm: Hard code the values for enums ocfs2/dlm: Minor cleanup ocfs2/dlm: Cleanup dlmdebug.c ocfs2: Release buffer_head in case of error in ocfs2_double_lock. ocfs2/cluster: Pin the local node when o2hb thread starts ocfs2/cluster: Show pin state for each o2hb region ocfs2/cluster: Pin/unpin o2hb regions ocfs2/cluster: Remove dropped region from o2hb quorum region bitmap ocfs2/cluster: Pin the remote node item in configfs ocfs2/dlm: make existing convertion precedent over new lock ...
2011-01-07fs: dcache reduce branches in lookup pathNick Piggin
Reduce some branches and memory accesses in dcache lookup by adding dentry flags to indicate common d_ops are set, rather than having to check them. This saves a pointer memory access (dentry->d_op) in common path lookup situations, and saves another pointer load and branch in cases where we have d_op but not the particular operation. Patched with: git grep -E '[.>]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)->d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&\1, \2);/' -i Signed-off-by: Nick Piggin <npiggin@kernel.dk>
2010-12-23ocfs2: Release buffer_head in case of error in ocfs2_double_lock.Tao Ma
In ocfs2_double_lock, when ocfs2_inode_lock for inode1 fails, we just unlock inode2 and return without releasing buffer we get from inode_lock(inode2). The good thing is that it is freed by the only caller ocfs2_rename when it exits. But I don't think this is a right way for error handling. We should free the buffer_head we get in ocfs2_double_lock before exit so that the caller doesn't need to take care of it. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-10-26new helper: ihold()Al Viro
Clones an existing reference to inode; caller must already hold one. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-09-10Track negative entries v3Goldwyn Rodrigues
Track negative dentries by recording the generation number of the parent directory in d_fsdata. The generation number for the parent directory is recorded in the inode_info, which increments every time the lock on the directory is dropped. If the generation number of the parent directory and the negative dentry matches, there is no need to perform the revalidate, else a revalidate is forced. This improves performance in situations where nodes look for the same non-existent file multiple times. Thanks Mark for explaining the DLM sequence. Signed-off-by: Goldwyn Rodrigues <rgoldwyn@suse.de> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-09-08ocfs2: Fix orphan add in ocfs2_create_inode_in_orphanMark Fasheh
ocfs2_create_inode_in_orphan() is used by reflink to create the newly reflinked inode simultaneously in the orphan dir. This allows us to easily handle partially-reflinked files during recovery cleanup. We have a problem though - the orphan dir stringifies inode # to determine a unique name under which the orphan entry dirent can be created. Since ocfs2_create_inode_in_orphan() needs the space allocated in the orphan dir before it can allocate the inode, we currently call into the orphan code: /* * We give the orphan dir the root blkno to fake an orphan name, * and allocate enough space for our insertion. */ status = ocfs2_prepare_orphan_dir(osb, &orphan_dir, osb->root_blkno, orphan_name, &orphan_insert); Using osb->root_blkno might work fine on unindexed directories, but the orphan dir can have an index. When it has that index, the above code fails to allocate the proper index entry. Later, when we try to remove the file from the orphan dir (using the actual inode #), the reflink operation will fail. To fix this, I created a function ocfs2_alloc_orphaned_file() which uses the newly split out orphan and inode alloc code to figure out what the inode block number will be (once allocated) and then prepare the orphan dir from that data. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Tao Ma <tao.ma@oracle.com>
2010-09-08ocfs2: split out ocfs2_prepare_orphan_dir() into locking and prep functionsMark Fasheh
We do this because ocfs2_create_inode_in_orphan() wants to order locking of the orphan dir with respect to locking of the inode allocator *before* making any changes to the directory. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Tao Ma <tao.ma@oracle.com>
2010-09-08ocfs2: split out inode alloc code from ocfs2_mknod_lockedMark Fasheh
Do this by splitting the bulk of the function away from the inode allocation code at the very tom of ocfs2_mknod_locked(). Existing callers don't need to change and won't see any difference. The new function created, __ocfs2_mknod_locked() will be used shortly. Signed-off-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Tao Ma <tao.ma@oracle.com>
2010-05-21ocfs2: replace inode uid,gid,mode initialization with helper functionDmitry Monakhov
Acked-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2010-05-21Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (47 commits) ocfs2: Silence a gcc warning. ocfs2: Don't retry xattr set in case value extension fails. ocfs2:dlm: avoid dlm->ast_lock lockres->spinlock dependency break ocfs2: Reset xattr value size after xa_cleanup_value_truncate(). fs/ocfs2/dlm: Use kstrdup fs/ocfs2/dlm: Drop memory allocation cast Ocfs2: Optimize punching-hole code. Ocfs2: Make ocfs2_find_cpos_for_left_leaf() public. Ocfs2: Fix hole punching to correctly do CoW during cluster zeroing. Ocfs2: Optimize ocfs2 truncate to use ocfs2_remove_btree_range() instead. ocfs2: Block signals for mkdir/link/symlink/O_CREAT. ocfs2: Wrap signal blocking in void functions. ocfs2/dlm: Increase o2dlm lockres hash size ocfs2: Make ocfs2_extend_trans() really extend. ocfs2/trivial: Code cleanup for allocation reservation. ocfs2: make ocfs2_adjust_resv_from_alloc simple. ocfs2: Make nointr a default mount option ocfs2/dlm: Make o2dlm domain join/leave messages KERN_NOTICE o2net: log socket state changes ocfs2: print node # when tcp fails ...
2010-05-18Merge branch 'discontig-bg' of git://oss.oracle.com/git/tma/linux-2.6 into ↵Joel Becker
ocfs2-merge-window
2010-05-10ocfs2: Block signals for mkdir/link/symlink/O_CREAT.Joel Becker
Once file or link creation gets going, it can't be interrupted by a signal. They're not idempotent. This blocks signals in ocfs2_mknod(), ocfs2_link(), and ocfs2_symlink() once we start actually changing things. ocfs2_mknod() covers mknod(), creat(), mkdir(), and open(O_CREAT). Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-05-06ocfs2: Make ocfs2_journal_dirty() void.Joel Becker
jbd[2]_journal_dirty_metadata() only returns 0. It's been returning 0 since before the kernel moved to git. There is no point in checking this error. ocfs2_journal_dirty() has been faithfully returning the status since the beginning. All over ocfs2, we have blocks of code checking this can't fail status. In the past few years, we've tried to avoid adding these checks, because they are pointless. But anyone who looks at our code assumes they are needed. Finally, ocfs2_journal_dirty() is made a void function. All error checking is removed from other files. We'll BUG_ON() the status of jbd2_journal_dirty_metadata() just in case they change it someday. They won't. Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-04-23ocfs2: Add directory entry later in ocfs2_symlink() and ocfs2_mknod()Mark Fasheh
If we get a failure during creation of an inode we'll allow the orphan code to remove the inode, which is correct. However, we need to ensure that we don't get any errors after the call to ocfs2_add_entry(), otherwise we could leave a dangling directory reference. The solution is simple - in both cases, all I had to do was move ocfs2_dentry_attach_lock() above the ocfs2_add_entry() call. Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2010-04-23ocfs2: use OCFS2_INODE_SKIP_ORPHAN_DIR in ocfs2_mknod error pathLi Dongyang
Mark the inode with flag OCFS2_INODE_SKIP_ORPHAN_DIR in ocfs2_mknod, so we can kill the inode in case of error. [ Fixed up comment style -Mark ] Signed-off-by: Li Dongyang <lidongyang@novell.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2010-04-23ocfs2: use OCFS2_INODE_SKIP_ORPHAN_DIR in ocfs2_symlink error pathLi Dongyang
Mark the inode with flag OCFS2_INODE_SKIP_ORPHAN_DIR when we get an error after allocating one, so that we can kill the inode. Signed-off-by: Li Dongyang <lidongyang@novell.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2010-04-23ocfs2: add OCFS2_INODE_SKIP_ORPHAN_DIR flag and honor it in the inode wipe codeLi Dongyang
Currently in the error path of ocfs2_symlink and ocfs2_mknod, we just call iput with the inode we failed with, but the inode wipe code will complain because we don't add the inode to orphan dir. One solution would be to lock the orphan dir during the entire transaction, but that's too heavy for a rare error path. Instead, we add a flag, OCFS2_INODE_SKIP_ORPHAN_DIR which tells the inode wipe code that it won't find this inode in the orphan dir. [ Merge fixes and comment style cleanups -Mark ] Signed-off-by: Li Dongyang <lidongyang@novell.com> Signed-off-by: Mark Fasheh <mfasheh@suse.com>
2010-03-24Ocfs2: Journaling i_flags and i_orphaned_slot when adding inode to orphan dir.Tristan Ye
Currently, some callers were missing to journal the dirty inode after adding it to orphan dir. Now we're going to journal such modifications within the ocfs2_orphan_add() itself, It's safe to do so, though some existing caller may duplicate this, and it makes the logic look more straightforward anyway. Signed-off-by: Tristan Ye <tristan.ye@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-03-26ocfs2: Set suballoc_loc on allocated metadata.Joel Becker
Get the suballoc_loc from ocfs2_claim_new_inode() or ocfs2_claim_metadata(). Store it on the appropriate field of the block we just allocated. Signed-off-by: Joel Becker <joel.becker@oracle.com>
2010-05-06ocfs2: ocfs2_claim_*() don't need an ocfs2_super argument.Joel Becker
They all take an ocfs2_alloc_context, which has the allocation inode. Signed-off-by: Joel Becker <joel.becker@oracle.com> Signed-off-by: Tao Ma <tao.ma@oracle.com>
2010-03-04dquot: cleanup dquot initialize routineChristoph Hellwig
Get rid of the initialize dquot operation - it is now always called from the filesystem and if a filesystem really needs it's own (which none currently does) it can just call into it's own routine directly. Rename the now static low-level dquot_initialize helper to __dquot_initialize and vfs_dq_init to dquot_initialize to have a consistent namespace. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
2010-03-04dquot: move dquot initialization responsibility into the filesystemChristoph Hellwig
Currently various places in the VFS call vfs_dq_init directly. This means we tie the quota code into the VFS. Get rid of that and make the filesystem responsible for the initialization. For most metadata operations this is a straight forward move into the methods, but for truncate and open it's a bit more complicated. For truncate we currently only call vfs_dq_init for the sys_truncate case because open already takes care of it for ftruncate and open(O_TRUNC) - the new code causes an additional vfs_dq_init for those which is harmless. For open the initialization is moved from do_filp_open into the open method, which means it happens slightly earlier now, and only for regular files. The latter is fine because we don't need to initialize it for operations on special files, and we already do it as part of the namespace operations for directories. Add a dquot_file_open helper that filesystems that support generic quotas can use to fill in ->open. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
2010-03-04dquot: cleanup inode allocation / freeing routinesChristoph Hellwig
Get rid of the alloc_inode and free_inode dquot operations - they are always called from the filesystem and if a filesystem really needs their own (which none currently does) it can just call into it's own routine directly. Also get rid of the vfs_dq_alloc/vfs_dq_free wrappers and always call the lowlevel dquot_alloc_inode / dqout_free_inode routines directly, which now lose the number argument which is always 1. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
2010-03-04dquot: cleanup space allocation / freeing routinesChristoph Hellwig
Get rid of the alloc_space, free_space, reserve_space, claim_space and release_rsv dquot operations - they are always called from the filesystem and if a filesystem really needs their own (which none currently does) it can just call into it's own routine directly. Move shared logic into the common __dquot_alloc_space, dquot_claim_space_nodirty and __dquot_free_space low-level methods, and rationalize the wrappers around it to move as much as possible code into the common block for CONFIG_QUOTA vs not. Also rename all these helpers to be named dquot_* instead of vfs_dq_*. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Jan Kara <jack@suse.cz>
2009-12-24Merge branch 'upstream-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: ocfs2/trivial: Use le16_to_cpu for a disk value in xattr.c ocfs2/trivial: Use proper mask for 2 places in hearbeat.c Ocfs2: Let ocfs2 support fiemap for symlink and fast symlink. Ocfs2: Should ocfs2 support fiemap for S_IFDIR inode? ocfs2: Use FIEMAP_EXTENT_SHARED fiemap: Add new extent flag FIEMAP_EXTENT_SHARED ocfs2: replace u8 by __u8 in ocfs2_fs.h ocfs2: explicit declare uninitialized var in user_cluster_connect() ocfs2-devel: remove redundant OCFS2_MOUNT_POSIX_ACL check in ocfs2_get_acl_nolock() ocfs2: return -EAGAIN instead of EAGAIN in dlm ocfs2/cluster: Make fence method configurable - v2 ocfs2: Set MS_POSIXACL on remount ocfs2: Make acl use the default ocfs2: Always include ACL support
2009-12-18ocfs2: Set i_nlink properly during reflink.Tao Ma
We create a file in orphan dir for reflink so that if there is any error, we don't create any wrong dentry in the dir. But actually the file in orphan dir should be i_nlink = 0 so that it can be replayed and freed successfully. This patch first set i_nlink to 0 when creating the file in orphan dir and then set it to 1(reflink now only works for regular file) when we move it to the dest dir. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2009-12-18ocfs2: Add reflinked file's inode to inode hash eariler.Tao Ma
We used to add reflinked file's inode to inode hash when we add it to the dest dir. But actually there is a race. Consider the following sequence. 1. reflink happens and create the inode in orphan dir. 2. reflink thread is scheduled out because of some io. 3. recovery begins to work and calls ocfs2_recover_orphans. It calls ocfs2_iget and get a new inode and i_count = 1. It calls iput then and delete inode. the buffer's uptodate state is cleared. This patch move insert_inode_hash to the create function so that it can be found by step 3 and prevented from deleting because i_count > 1. This resolves the bug http://oss.oracle.com/bugzilla/show_bug.cgi?id=1183. Signed-off-by: Tao Ma <tao.ma@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2009-12-18Ocfs2: Should ocfs2 support fiemap for S_IFDIR inode?Tristan Ye
Let userspace have a chance to get the extent info of a directory just like extN did. Signed-off-by: Tristan Ye <tristan.ye@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com>
2009-09-23ocfs2: Create reflinked file in orphan dir.Tao Ma
reflink is a very complicated process, so it can't be integrated into one transaction. So if the system panic in the operation, we may leave a unfinished inode in the destication directory. So we will try to create an inode in orphan_dir first, reflink it to the src file and then move it to the destication file in the end. In that way we won't be afraid of any corruption during the reflink. This patch adds 2 functions for orphan_dir operation: 1. Create a new inode in orphand dir. 2. Move an inode to a target dir. Note: fsck.ocfs2 should work for us to remove the unfinished file in the orphan_dir. Signed-off-by: Tao Ma <tao.ma@oracle.com>