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* ocfs2: fix the end cluster offset of FIEMAPJie Liu2013-09-261-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 28e8be31803b19d0d8f76216cb11b480b8a98bec upstream. Call fiemap ioctl(2) with given start offset as well as an desired mapping range should show extents if possible. However, we somehow figure out the end offset of mapping via 'mapping_end -= cpos' before iterating the extent records which would cause problems if the given fiemap length is too small to a cluster size, e.g, Cluster size 4096: debugfs.ocfs2 1.6.3 Block Size Bits: 12 Cluster Size Bits: 12 The extended fiemap test utility From David: https://gist.github.com/anonymous/6172331 # dd if=/dev/urandom of=/ocfs2/test_file bs=1M count=1000 # ./fiemap /ocfs2/test_file 4096 10 start: 4096, length: 10 File /ocfs2/test_file has 0 extents: # Logical Physical Length Flags ^^^^^ <-- No extent is shown In this case, at ocfs2_fiemap(): cpos == mapping_end == 1. Hence the loop of searching extent records was not executed at all. This patch remove the in question 'mapping_end -= cpos', and loops until the cpos is larger than the mapping_end as usual. # ./fiemap /ocfs2/test_file 4096 10 start: 4096, length: 10 File /ocfs2/test_file has 1 extents: # Logical Physical Length Flags 0: 0000000000000000 0000000056a01000 0000000006a00000 0000 Signed-off-by: Jie Liu <jeff.liu@oracle.com> Reported-by: David Weber <wb@munzinger.de> Tested-by: David Weber <wb@munzinger.de> Cc: Sunil Mushran <sunil.mushran@gmail.com> Cc: Mark Fashen <mfasheh@suse.de> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ocfs2: xattr: fix inlined xattr reflinkJunxiao Bi2013-07-211-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit ef962df057aaafd714f5c22ba3de1be459571fdf upstream. Inlined xattr shared free space of inode block with inlined data or data extent record, so the size of the later two should be adjusted when inlined xattr is enabled. See ocfs2_xattr_ibody_init(). But this isn't done well when reflink. For inode with inlined data, its max inlined data size is adjusted in ocfs2_duplicate_inline_data(), no problem. But for inode with data extent record, its record count isn't adjusted. Fix it, or data extent record and inlined xattr may overwrite each other, then cause data corruption or xattr failure. One panic caused by this bug in our test environment is the following: kernel BUG at fs/ocfs2/xattr.c:1435! invalid opcode: 0000 [#1] SMP Pid: 10871, comm: multi_reflink_t Not tainted 2.6.39-300.17.1.el5uek #1 RIP: ocfs2_xa_offset_pointer+0x17/0x20 [ocfs2] RSP: e02b:ffff88007a587948 EFLAGS: 00010283 RAX: 0000000000000000 RBX: 0000000000000010 RCX: 00000000000051e4 RDX: ffff880057092060 RSI: 0000000000000f80 RDI: ffff88007a587a68 RBP: ffff88007a587948 R08: 00000000000062f4 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000010 R13: ffff88007a587a68 R14: 0000000000000001 R15: ffff88007a587c68 FS: 00007fccff7f06e0(0000) GS:ffff88007fc00000(0000) knlGS:0000000000000000 CS: e033 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 00000000015cf000 CR3: 000000007aa76000 CR4: 0000000000000660 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process multi_reflink_t Call Trace: ocfs2_xa_reuse_entry+0x60/0x280 [ocfs2] ocfs2_xa_prepare_entry+0x17e/0x2a0 [ocfs2] ocfs2_xa_set+0xcc/0x250 [ocfs2] ocfs2_xattr_ibody_set+0x98/0x230 [ocfs2] __ocfs2_xattr_set_handle+0x4f/0x700 [ocfs2] ocfs2_xattr_set+0x6c6/0x890 [ocfs2] ocfs2_xattr_user_set+0x46/0x50 [ocfs2] generic_setxattr+0x70/0x90 __vfs_setxattr_noperm+0x80/0x1a0 vfs_setxattr+0xa9/0xb0 setxattr+0xc3/0x120 sys_fsetxattr+0xa8/0xd0 system_call_fastpath+0x16/0x1b Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com> Reviewed-by: Jie Liu <jeff.liu@oracle.com> Acked-by: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Sunil Mushran <sunil.mushran@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ocfs2: goto out_unlock if ocfs2_get_clusters_nocache() failed in ocfs2_fiemap()Joseph Qi2013-06-071-1/+1
| | | | | | | | | | | | | | | | | | | | | | commit b4ca2b4b577c3530e34dcfaafccb2cc680ce95d1 upstream. Last time we found there is lock/unlock bug in ocfs2_file_aio_write, and then we did a thorough search for all lock resources in ocfs2_inode_info, including rw, inode and open lockres and found this bug. My kernel version is 3.0.13, and it is also in the lastest version 3.9. In ocfs2_fiemap, once ocfs2_get_clusters_nocache failed, it should goto out_unlock instead of out, because we need release buffer head, up read alloc sem and unlock inode. Signed-off-by: Joseph Qi <joseph.qi@huawei.com> Reviewed-by: Jie Liu <jeff.liu@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Acked-by: Sunil Mushran <sunil.mushran@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ocfs2: ac->ac_allow_chain_relink=0 won't disable group relinkXiaowei.Hu2013-03-042-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | commit 309a85b6861fedbb48a22d45e0e079d1be993b3a upstream. ocfs2_block_group_alloc_discontig() disables chain relink by setting ac->ac_allow_chain_relink = 0 because it grabs clusters from multiple cluster groups. It doesn't keep the credits for all chain relink,but ocfs2_claim_suballoc_bits overrides this in this call trace: ocfs2_block_group_claim_bits()->ocfs2_claim_clusters()-> __ocfs2_claim_clusters()->ocfs2_claim_suballoc_bits() ocfs2_claim_suballoc_bits set ac->ac_allow_chain_relink = 1; then call ocfs2_search_chain() one time and disable it again, and then we run out of credits. Fix is to allow relink by default and disable it in ocfs2_block_group_alloc_discontig. Without this patch, End-users will run into a crash due to run out of credits, backtrace like this: RIP: 0010:[<ffffffffa0808b14>] [<ffffffffa0808b14>] jbd2_journal_dirty_metadata+0x164/0x170 [jbd2] RSP: 0018:ffff8801b919b5b8 EFLAGS: 00010246 RAX: 0000000000000000 RBX: ffff88022139ddc0 RCX: ffff880159f652d0 RDX: ffff880178aa3000 RSI: ffff880159f652d0 RDI: ffff880087f09bf8 RBP: ffff8801b919b5e8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000001e00 R11: 00000000000150b0 R12: ffff880159f652d0 R13: ffff8801a0cae908 R14: ffff880087f09bf8 R15: ffff88018d177800 FS: 00007fc9b0b6b6e0(0000) GS:ffff88022fd40000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 000000008005003b CR2: 000000000040819c CR3: 0000000184017000 CR4: 00000000000006e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400 Process dd (pid: 9945, threadinfo ffff8801b919a000, task ffff880149a264c0) Call Trace: ocfs2_journal_dirty+0x2f/0x70 [ocfs2] ocfs2_relink_block_group+0x111/0x480 [ocfs2] ocfs2_search_chain+0x455/0x9a0 [ocfs2] ... Signed-off-by: Xiaowei.Hu <xiaowei.hu@oracle.com> Reviewed-by: Srinivas Eeda <srinivas.eeda@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ocfs2: unlock super lock if lockres refresh failedJunxiao Bi2013-02-281-1/+4
| | | | | | | | | | | | | | | commit 3278bb748d2437eb1464765f36429e5d6aa91c38 upstream. If lockres refresh failed, the super lock will never be released which will cause some processes on other cluster nodes hung forever. Signed-off-by: Junxiao Bi <junxiao.bi@oracle.com> Cc: Joel Becker <jlbec@evilplan.org> Cc: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ocfs2: ->e_leaf_clusters endianness breakageAl Viro2012-04-271-2/+2
| | | | | | | | | | | | commit 72094e43e3af5020510f920321d71f1798fa896d upstream. le16, not le32... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ocfs2: ->rl_count endianness breakageAl Viro2012-04-271-1/+1
| | | | | | | | | | | | commit 28748b325dc2d730ccc312830a91c4ae0c0d9379 upstream. le16, not le32... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ocfs: ->rl_used breakage on big-endianAl Viro2012-04-271-4/+4
| | | | | | | | | | | | commit e1bf4cc620fd143766ddfcee3b004a1d1bb34fd0 upstream. it's le16, not le32 or le64... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* ocfs2: ->l_next_free_req breakage on big-endianAl Viro2012-04-272-3/+3
| | | | | | | | | | | | commit 3a251f04fe97c3d335b745c98e4b377e3c3899f2 upstream. It's le16, not le32... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Joel Becker <jlbec@evilplan.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
* more conservative S_NOSEC handlingAl Viro2011-06-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | Caching "we have already removed suid/caps" was overenthusiastic as merged. On network filesystems we might have had suid/caps set on another client, silently picked by this client on revalidate, all of that *without* clearing the S_NOSEC flag. AFAICS, the only reasonably sane way to deal with that is * new superblock flag; unless set, S_NOSEC is not going to be set. * local block filesystems set it in their ->mount() (more accurately, mount_bdev() does, so does btrfs ->mount(), users of mount_bdev() other than local block ones clear it) * if any network filesystem (or a cluster one) wants to use S_NOSEC, it'll need to set MS_NOSEC in sb->s_flags *AND* take care to clear S_NOSEC when inode attribute changes are picked from other clients. It's not an earth-shattering hole (anybody that can set suid on another client will almost certainly be able to write to the file before doing that anyway), but it's a bug that needs fixing. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Merge branch 'linux-next' of ↵Linus Torvalds2011-05-271-21/+20
|\ | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: Ocfs2/move_extents: Validate moving goal after the adjustment. Ocfs2/move_extents: Avoid doing division in extent moving.
| * Merge branch 'move_extents' of git://oss.oracle.com/git/tye/linux-2.6 into ↵Joel Becker2011-05-271-21/+20
| |\ | | | | | | | | | ocfs2-merge-window
| | * Ocfs2/move_extents: Validate moving goal after the adjustment.Tristan Ye2011-05-271-13/+13
| | | | | | | | | | | | | | | | | | | | | | | | though the goal_to_be_moved will be validated again in following moving, it's still a good idea to validate it after adjustment at the very beginning, instead of validating it before adjustment. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: Avoid doing division in extent moving.Tristan Ye2011-05-271-10/+9
| | | | | | | | | | | | | | | | | | | | | It's not wise enough to do a 64bits division anywhere in kernside, replace it with a decent helper or proper shifts. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
* | | Merge branch 'linux-next' of ↵Linus Torvalds2011-05-2619-246/+2135
|\ \ \ | |/ / | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jlbec/ocfs2: (28 commits) Ocfs2: Teach local-mounted ocfs2 to handle unwritten_extents correctly. ocfs2/dlm: Do not migrate resource to a node that is leaving the domain ocfs2/dlm: Add new dlm message DLM_BEGIN_EXIT_DOMAIN_MSG Ocfs2/move_extents: Set several trivial constraints for threshold. Ocfs2/move_extents: Let defrag handle partial extent moving. Ocfs2/move_extents: move/defrag extents within a certain range. Ocfs2/move_extents: helper to calculate the defraging length in one run. Ocfs2/move_extents: move entire/partial extent. Ocfs2/move_extents: helpers to update the group descriptor and global bitmap inode. Ocfs2/move_extents: helper to probe a proper region to move in an alloc group. Ocfs2/move_extents: helper to validate and adjust moving goal. Ocfs2/move_extents: find the victim alloc group, where the given #blk fits. Ocfs2/move_extents: defrag a range of extent. Ocfs2/move_extents: move a range of extent. Ocfs2/move_extents: lock allocators and reserve metadata blocks and data clusters for extents moving. Ocfs2/move_extents: Add basic framework and source files for extent moving. Ocfs2/move_extents: Adding new ioctl code 'OCFS2_IOC_MOVE_EXT' to ocfs2. Ocfs2/refcounttree: Publicize couple of funcs from refcounttree.c Ocfs2: Add a new code 'OCFS2_INFO_FREEFRAG' for o2info ioctl. Ocfs2: Add a new code 'OCFS2_INFO_FREEINODE' for o2info ioctl. ...
| * | Merge branch 'move_extents' of git://oss.oracle.com/git/tye/linux-2.6 into ↵Joel Becker2011-05-257-56/+1725
| |\ \ | | |/ | | | | | | | | | | | | | | | ocfs2-merge-window Conflicts: fs/ocfs2/ioctl.c
| | * Ocfs2/move_extents: Set several trivial constraints for threshold.Tristan Ye2011-05-251-7/+17
| | | | | | | | | | | | | | | | | | The threshold should be greater than clustersize and less than i_size. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: Let defrag handle partial extent moving.Tristan Ye2011-05-251-20/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We're going to support partial extent moving, which may split entire extent movement into pieces to compromise the insuffice allocations, it eases the 'ENSPC' pain and makes the whole moving much less likely to fail, the downside is it may make the fs even more fragmented before moving, just let the userspace make a trade-off here. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: move/defrag extents within a certain range.Tristan Ye2011-05-253-0/+315
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | the basic logic of moving extents for a file is pretty like punching-hole sequence, walk the extents within the range as user specified, calculating an appropriate len to defrag/move, then let ocfs2_defrag/move_extent() to do the actual moving. This func ends up setting 'OCFS2_MOVE_EXT_FL_COMPLETE' to userpace if operation gets done successfully. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: helper to calculate the defraging length in one run.Tristan Ye2011-05-251-0/+30
| | | | | | | | | | | | | | | | | | | | | | | | The helper is to calculate the defrag length in one run according to a threshold, it will proceed doing defragmentation until the threshold was meet, and skip a LARGE extent if any. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: move entire/partial extent.Tristan Ye2011-05-251-0/+165
| | | | | | | | | | | | | | | | | | | | | | | | | | | ocfs2_move_extent() logic will validate the goal_offset_in_block, where extents to be moved, what's more, it also compromises a bit to probe the appropriate region around given goal_offset when the original goal is not able to fit the movement. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: helpers to update the group descriptor and global bitmap ↵Tristan Ye2011-05-251-0/+77
| | | | | | | | | | | | | | | | | | | | | | | | | | | inode. These helpers were actually borrowed from alloc.c, which may be publicized later. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: helper to probe a proper region to move in an alloc group.Tristan Ye2011-05-251-0/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | Before doing the movement of extents, we'd better probe the alloc group from 'goal_blk' for searching a contiguous region to fit the wanted movement, we even will have a best-effort try by compromising to a threshold around the given goal. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: helper to validate and adjust moving goal.Tristan Ye2011-05-251-0/+61
| | | | | | | | | | | | | | | | | | | | | | | | First best-effort attempt to validate and adjust the goal (physical address in block), while it can't guarantee later operation can succeed all the time since global_bitmap may change a bit over time. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: find the victim alloc group, where the given #blk fits.Tristan Ye2011-05-251-0/+104
| | | | | | | | | | | | | | | | | | | | | | | | This function tries locate the right alloc group, where a given physical block resides, it returns the caller a buffer_head of victim group descriptor, and also the offset of block in this group, by passing the block number. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: defrag a range of extent.Tristan Ye2011-05-251-0/+136
| | | | | | | | | | | | | | | | | | | | | | | | | | | It's a relatively complete function to accomplish defragmentation for entire or partial extent, one journal handle was kept during the operation, it was logically doing one more thing than ocfs2_move_extent() acutally, yes, it's claiming the new clusters itself;-) Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: move a range of extent.Tristan Ye2011-05-251-0/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The moving range of __ocfs2_move_extent() was within one extent always, it consists following parts: 1. Duplicates the clusters in pages to new_blkoffset, where extent to be moved. 2. Split the original extent with new extent, coalecse the nearby extents if possible. 3. Append old clusters to truncate log, or decrease_refcount if the extent was refcounted. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: lock allocators and reserve metadata blocks and data ↵Tristan Ye2011-05-251-0/+61
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | clusters for extents moving. ocfs2_lock_allocators_move_extents() was like the common ocfs2_lock_allocators(), to lock metadata and data alloctors during extents moving, reserve appropriate metadata blocks and data clusters, also performa a best- effort to calculate the credits for journal transaction in one run of movement. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: Add basic framework and source files for extent moving.Tristan Ye2011-05-253-0/+77
| | | | | | | | | | | | | | | | | | | | | Adding new files move_extents.[c|h] and fill it with nothing but only a context structure. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/move_extents: Adding new ioctl code 'OCFS2_IOC_MOVE_EXT' to ocfs2.Tristan Ye2011-05-251-0/+34
| | | | | | | | | | | | | | | | | | Patch also manages to add a manipulative struture for this ioctl. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2/refcounttree: Publicize couple of funcs from refcounttree.cTristan Ye2011-05-252-29/+40
| | | | | | | | | | | | | | | | | | | | | | | | The original goal of commonizing these funcs is to benefit defraging/extent_moving codes in the future, based on the fact that reflink and defragmentation having the same Copy-On-Wrtie mechanism. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2: Add a new code 'OCFS2_INFO_FREEFRAG' for o2info ioctl.Tristan Ye2011-05-252-0/+313
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This new code is a bit more complicated than former ones, the goal is to show user all statistics required to take a deep insight into filesystem on how the disk is being fragmentaed. The goal is achieved by scaning global bitmap from (cluster)group to group to figure out following factors in the filesystem: - How many free chunks in a fixed size as user requested. - How many real free chunks in all size. - Min/Max/Avg size(in) clusters of free chunks. - How do free chunks distribute(in size) in terms of a histogram, just like following: --------------------------------------------------------- Extent Size Range : Free extents Free Clusters Percent 32K... 64K- : 1 1 0.00% 1M... 2M- : 9 288 0.03% 8M... 16M- : 2 831 0.09% 32M... 64M- : 1 2047 0.23% 128M... 256M- : 1 8191 0.92% 256M... 512M- : 2 21706 2.43% 512M... 1024M- : 27 858623 96.29% --------------------------------------------------------- Userspace ioctl() call eventually gets the above info returned by passing a 'struct ocfs2_info_freefrag' with the chunk_size being specified first. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2: Add a new code 'OCFS2_INFO_FREEINODE' for o2info ioctl.Tristan Ye2011-05-252-0/+139
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The new code is dedicated to calculate free inodes number of all inode_allocs, then return the info to userpace in terms of an array. Specially, flag 'OCFS2_INFO_FL_NON_COHERENT', manipulated by '--cluster-coherent' from userspace, is now going to be involved. setting the flag on means no cluster coherency considered, usually, userspace tools choose none-coherency strategy by default for the sake of performace. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| | * Ocfs2: Using inline funcs to set/clear *FILLED* flags in info handler.Tristan Ye2011-05-251-28/+19
| | | | | | | | | | | | | | | | | | It just removes some macros for the sake of typechecking gains. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| * | Ocfs2: Teach local-mounted ocfs2 to handle unwritten_extents correctly.Tristan Ye2011-05-251-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | Oops, local-mounted of 'ocfs2_fops_no_plocks' is just missing the support of unwritten_extents/punching-hole due to no func pointer was given correctly to '.follocate' field. Signed-off-by: Tristan Ye <tristan.ye@oracle.com>
| * | ocfs2/dlm: Do not migrate resource to a node that is leaving the domainSunil Mushran2011-05-252-95/+57
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During dlm domain shutdown, o2dlm has to free all the lock resources. Ones that have no locks and references are freed. Ones that have locks and/or references are migrated to another node. The first task in migration is finding a target. Currently we scan the lock resource and find one node that either has a lock or a reference. This is not very efficient in a parallel umount case as we might end up migrating the lock resource to a node which itself may have to migrate it to a third node. The patch scans the dlm->exit_domain_map to ensure the target node is not leaving the domain. If no valid target node is found, o2dlm does not migrate the resource but instead waits for the unlock and deref messages that will allow it to free the resource. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
| * | ocfs2/dlm: Add new dlm message DLM_BEGIN_EXIT_DOMAIN_MSGSunil Mushran2011-05-254-11/+82
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds a new dlm message DLM_BEGIN_EXIT_DOMAIN_MSG and ups the dlm protocol to 1.2. o2dlm sends this new message in dlm_unregister_domain() to mark the beginning of the exit domain. This message is sent to all nodes in the domain. Currently o2dlm has no way of informing other nodes of its impending exit. This information is useful as the other nodes could disregard the exiting node in certain operations. For example, in resource migration. If two or more nodes were umounting in parallel, it would be more efficient if o2dlm were to choose a non-exiting node to be the new master node rather than an exiting one. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Reviewed-by: Mark Fasheh <mfasheh@suse.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
| * | ocfs2: change incorrect 'extern' keyword to 'static' in dlmfsRobin Dong2011-05-231-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | Change function param_set_dlmfs_capabilities from 'extern' to 'static' since function param_get_dlmfs_capabilities is also 'static'. Signed-off-by: Robin Dong <sanbai@taobao.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
| * | ocfs2/dlm: dlm_is_lockres_migrateable() returns booleanSunil Mushran2011-05-232-84/+63
| | | | | | | | | | | | | | | | | | | | | | | | | | | Patch cleans up the gunk added by commit 388c4bcb4e63e88fb1f312a2f5f9eb2623afcf5b. dlm_is_lockres_migrateable() now returns 1 if lockresource is deemed migrateable and 0 if not. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
| * | ocfs2: Add trace event for trim.Tao Ma2011-05-232-0/+32
| | | | | | | | | | | | | | | | | | | | | Add the corresponding trace event for trim. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
| * | ocfs2: Add FITRIM ioctl.Tao Ma2011-05-231-0/+24
| | | | | | | | | | | | | | | | | | | | | Add the corresponding ioctl function for FITRIM. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
| * | ocfs2: Add ocfs2_trim_fs for SSD trim support.Tao Ma2011-05-232-0/+160
| | | | | | | | | | | | | | | | | | | | | | | | | | | Add ocfs2_trim_fs to support trimming freed clusters in the volume. A range will be given and all the freed clusters greater than minlen will be discarded to the block layer. Signed-off-by: Tao Ma <boyu.mt@taobao.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
| * | ocfs2: remove the /sys/o2cb symlinkAmerigo Wang2011-05-231-9/+0
| | | | | | | | | | | | | | | | | | | | | It is obsoleted since Dec 2005. Signed-off-by: WANG Cong <amwang@redhat.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
| * | ocfs2: clean up mount option about atime in ocfs2.txtTiger Yang2011-05-231-1/+1
| |/ | | | | | | | | | | | | | | | | As ocfs2 supports relatime and strictatime, we need update the relative document. Atime_quantum need work with strictatime, so only show it in procfs when mount with strictatime. Signed-off-by: Tiger Yang <tiger.yang@oracle.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2011-05-261-0/+2
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/djm/tmem: xen: cleancache shim to Xen Transcendent Memory ocfs2: add cleancache support ext4: add cleancache support btrfs: add cleancache support ext3: add cleancache support mm/fs: add hooks to support cleancache mm: cleancache core ops functions and config fs: add field to superblock to support cleancache mm/fs: cleancache documentation Fix up trivial conflict in fs/btrfs/extent_io.c due to includes
| * ocfs2: add cleancache supportDan Magenheimer2011-05-261-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This eighth patch of eight in this cleancache series "opts-in" cleancache for ocfs2. Clustered filesystems must explicitly enable cleancache by calling cleancache_init_shared_fs anytime an instance of the filesystem is mounted. Ocfs2 is currently the only user of the clustered filesystem interface but nevertheless, the cleancache hooks in the VFS layer are sufficient for ocfs2 including the matching cleancache_flush_fs hook which must be called on unmount. Details and a FAQ can be found in Documentation/vm/cleancache.txt [v8: trivial merge conflict update] [v5: jeremy@goop.org: simplify init hook and any future fs init changes] Signed-off-by: Dan Magenheimer <dan.magenheimer@oracle.com> Signed-off-by: Joel Becker <joel.becker@oracle.com> Reviewed-by: Jeremy Fitzhardinge <jeremy@goop.org> Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Cc: Mark Fasheh <mfasheh@suse.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Al Viro <viro@ZenIV.linux.org.uk> Cc: Matthew Wilcox <matthew@wil.cx> Cc: Nick Piggin <npiggin@kernel.dk> Cc: Mel Gorman <mel@csn.ul.ie> Cc: Rik Van Riel <riel@redhat.com> Cc: Jan Beulich <JBeulich@novell.com> Cc: Chris Mason <chris.mason@oracle.com> Cc: Andreas Dilger <adilger@sun.com> Cc: Ted Tso <tytso@mit.edu> Cc: Nitin Gupta <ngupta@vflare.org>
* | Merge branch 'for-linus' of ↵Linus Torvalds2011-05-231-1/+1
|\ \ | |/ |/| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) b43: fix comment typo reqest -> request Haavard Skinnemoen has left Atmel cris: typo in mach-fs Makefile Kconfig: fix copy/paste-ism for dell-wmi-aio driver doc: timers-howto: fix a typo ("unsgined") perf: Only include annotate.h once in tools/perf/util/ui/browsers/annotate.c md, raid5: Fix spelling error in comment ('Ofcourse' --> 'Of course'). treewide: fix a few typos in comments regulator: change debug statement be consistent with the style of the rest Revert "arm: mach-u300/gpio: Fix mem_region resource size miscalculations" audit: acquire creds selectively to reduce atomic op overhead rtlwifi: don't touch with treewide double semicolon removal treewide: cleanup continuations and remove logging message whitespace ath9k_hw: don't touch with treewide double semicolon removal include/linux/leds-regulator.h: fix syntax in example code tty: fix typo in descripton of tty_termios_encode_baud_rate xtensa: remove obsolete BKL kernel option from defconfig m68k: fix comment typo 'occcured' arch:Kconfig.locks Remove unused config option. treewide: remove extra semicolons ...
| * Merge branch 'master' into for-nextJiri Kosina2011-04-2651-1665/+3889
| |\ | | | | | | | | | | | | Fast-forwarded to current state of Linus' tree as there are patches to be applied for files that didn't exist on the old branch.
| * | treewide: remove extra semicolonsJustin P. Mattock2011-04-101-1/+1
| | | | | | | | | | | | | | | Signed-off-by: Justin P. Mattock <justinmattock@gmail.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* | | ocfs2/dlm: Target node death during resource migration leads to thread spinSunil Mushran2011-05-131-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | During resource migration, if the target node were to die, the thread doing the migration spins until the target node is not removed from the domain map. This patch slows the spin by making the thread wait for the recovery to kick in. Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com> Signed-off-by: Joel Becker <jlbec@evilplan.org>
generated by cgit v1.1 at 2024-05-03 02:54:31 +0000