linux/include/trace/events, branch v2.6.39

mm: tracing: add missing GFP flags to tracing

2011-05-12T01:50:45Z

include/linux/gfp.h and include/trace/events/gfpflags.h are out of sync. When tracing is enabled, certain flags are not recognised and the text output is less useful as a result. Add the missing flags. Signed-off-by: Mel Gorman Cc: Andrea Arcangeli Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

block: make unplug timer trace event correspond to the schedule() unplug

2011-04-16T11:51:05Z

It's a pretty close match to what we had before - the timer triggering would mean that nobody unplugged the plug in due time, in the new scheme this matches very closely what the schedule() unplug now is. It's essentially the difference between an explicit unplug (IO unplug) or an implicit unplug (timer unplug, we scheduled with pending IO queued). Signed-off-by: Jens Axboe

block: fixup block IO unplug trace call

2011-04-12T08:12:19Z

It was removed with the on-stack plugging, readd it and track the depth of requests added when flushing the plug. Signed-off-by: Jens Axboe

block: remove block_unplug_timer() trace point

2011-04-12T08:06:33Z

We no longer have an unplug timer running, so no point in keeping the trace point. Signed-off-by: Jens Axboe

Merge branch 'for-linus-unmerged' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable

2011-03-28T22:31:05Z

* 'for-linus-unmerged' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (45 commits) Btrfs: fix __btrfs_map_block on 32 bit machines btrfs: fix possible deadlock by clearing __GFP_FS flag btrfs: check link counter overflow in link(2) btrfs: don't mess with i_nlink of unlocked inode in rename() Btrfs: check return value of btrfs_alloc_path() Btrfs: fix OOPS of empty filesystem after balance Btrfs: fix memory leak of empty filesystem after balance Btrfs: fix return value of setflags ioctl Btrfs: fix uncheck memory allocations btrfs: make inode ref log recovery faster Btrfs: add btrfs_trim_fs() to handle FITRIM Btrfs: adjust btrfs_discard_extent() return errors and trimmed bytes Btrfs: make btrfs_map_block() return entire free extent for each device of RAID0/1/10/DUP Btrfs: make update_reserved_bytes() public btrfs: return EXDEV when linking from different subvolumes Btrfs: Per file/directory controls for COW and compression Btrfs: add datacow flag in inode flag btrfs: use GFP_NOFS instead of GFP_KERNEL Btrfs: check return value of read_tree_block() btrfs: properly access unaligned checksum buffer ... Fix up trivial conflicts in fs/btrfs/volumes.c due to plug removal in the block layer.

Btrfs: add initial tracepoint support for btrfs

2011-03-28T09:37:33Z

Tracepoints can provide insight into why btrfs hits bugs and be greatly helpful for debugging, e.g dd-7822 [000] 2121.641088: btrfs_inode_request: root = 5(FS_TREE), gen = 4, ino = 256, blocks = 8, disk_i_size = 0, last_trans = 8, logged_trans = 0 dd-7822 [000] 2121.641100: btrfs_inode_new: root = 5(FS_TREE), gen = 8, ino = 257, blocks = 0, disk_i_size = 0, last_trans = 0, logged_trans = 0 btrfs-transacti-7804 [001] 2146.935420: btrfs_cow_block: root = 2(EXTENT_TREE), refs = 2, orig_buf = 29368320 (orig_level = 0), cow_buf = 29388800 (cow_level = 0) btrfs-transacti-7804 [001] 2146.935473: btrfs_cow_block: root = 1(ROOT_TREE), refs = 2, orig_buf = 29364224 (orig_level = 0), cow_buf = 29392896 (cow_level = 0) btrfs-transacti-7804 [001] 2146.972221: btrfs_transaction_commit: root = 1(ROOT_TREE), gen = 8 flush-btrfs-2-7821 [001] 2155.824210: btrfs_chunk_alloc: root = 3(CHUNK_TREE), offset = 1103101952, size = 1073741824, num_stripes = 1, sub_stripes = 0, type = DATA flush-btrfs-2-7821 [001] 2155.824241: btrfs_cow_block: root = 2(EXTENT_TREE), refs = 2, orig_buf = 29388800 (orig_level = 0), cow_buf = 29396992 (cow_level = 0) flush-btrfs-2-7821 [001] 2155.824255: btrfs_cow_block: root = 4(DEV_TREE), refs = 2, orig_buf = 29372416 (orig_level = 0), cow_buf = 29401088 (cow_level = 0) flush-btrfs-2-7821 [000] 2155.824329: btrfs_cow_block: root = 3(CHUNK_TREE), refs = 2, orig_buf = 20971520 (orig_level = 0), cow_buf = 20975616 (cow_level = 0) btrfs-endio-wri-7800 [001] 2155.898019: btrfs_cow_block: root = 5(FS_TREE), refs = 2, orig_buf = 29384704 (orig_level = 0), cow_buf = 29405184 (cow_level = 0) btrfs-endio-wri-7800 [001] 2155.898043: btrfs_cow_block: root = 7(CSUM_TREE), refs = 2, orig_buf = 29376512 (orig_level = 0), cow_buf = 29409280 (cow_level = 0) Here is what I have added: 1) ordere_extent: btrfs_ordered_extent_add btrfs_ordered_extent_remove btrfs_ordered_extent_start btrfs_ordered_extent_put These provide critical information to understand how ordered_extents are updated. 2) extent_map: btrfs_get_extent extent_map is used in both read and write cases, and it is useful for tracking how btrfs specific IO is running. 3) writepage: __extent_writepage btrfs_writepage_end_io_hook Pages are cirtical resourses and produce a lot of corner cases during writeback, so it is valuable to know how page is written to disk. 4) inode: btrfs_inode_new btrfs_inode_request btrfs_inode_evict These can show where and when a inode is created, when a inode is evicted. 5) sync: btrfs_sync_file btrfs_sync_fs These show sync arguments. 6) transaction: btrfs_transaction_commit In transaction based filesystem, it will be useful to know the generation and who does commit. 7) back reference and cow: btrfs_delayed_tree_ref btrfs_delayed_data_ref btrfs_delayed_ref_head btrfs_cow_block Btrfs natively supports back references, these tracepoints are helpful on understanding btrfs's COW mechanism. 8) chunk: btrfs_chunk_alloc btrfs_chunk_free Chunk is a link between physical offset and logical offset, and stands for space infomation in btrfs, and these are helpful on tracing space things. 9) reserved_extent: btrfs_reserved_extent_alloc btrfs_reserved_extent_free These can show how btrfs uses its space. Signed-off-by: Liu Bo Signed-off-by: Chris Mason

Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

2011-03-25T16:57:41Z

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (43 commits) ext4: fix a BUG in mb_mark_used during trim. ext4: unused variables cleanup in fs/ext4/extents.c ext4: remove redundant set_buffer_mapped() in ext4_da_get_block_prep() ext4: add more tracepoints and use dev_t in the trace buffer ext4: don't kfree uninitialized s_group_info members ext4: add missing space in printk's in __ext4_grp_locked_error() ext4: add FITRIM to compat_ioctl. ext4: handle errors in ext4_clear_blocks() ext4: unify the ext4_handle_release_buffer() api ext4: handle errors in ext4_rename jbd2: add COW fields to struct jbd2_journal_handle jbd2: add the b_cow_tid field to journal_head struct ext4: Initialize fsync transaction ids in ext4_new_inode() ext4: Use single thread to perform DIO unwritten convertion ext4: optimize ext4_bio_write_page() when no extent conversion is needed ext4: skip orphan cleanup if fs has unknown ROCOMPAT features ext4: use the nblocks arg to ext4_truncate_restart_trans() ext4: fix missing iput of root inode for some mount error paths ext4: make FIEMAP and delayed allocation play well together ext4: suppress verbose debugging information if malloc-debug is off ... Fi up conflicts in fs/ext4/super.c due to workqueue changes

ext4: add more tracepoints and use dev_t in the trace buffer

2011-03-22T01:38:05Z

- Add more ext4 tracepoints. - Change ext4 tracepoints to use dev_t field with MAJOR/MINOR macros so that we can save 4 bytes in the ring buffer on some platforms. - Add sync_mode to ext4_da_writepages, ext4_da_write_pages, and ext4_da_writepages_result tracepoints. Also remove for_reclaim field from ext4_da_writepages since it is usually not very useful. Signed-off-by: Jiaying Zhang Signed-off-by: "Theodore Ts'o"

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6

2011-03-18T17:46:37Z

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (308 commits) ALSA: sound/pci/asihpi: check adapter index in hpi_ioctl ALSA: aloop - Fix possible IRQ lock inversion ALSA: sound/core: merge list_del()/list_add_tail() to list_move_tail() ALSA: ctxfi - use list_move() instead of list_del()/list_add() combination ALSA: firewire - msleep needs delay.h ALSA: firewire-lib, firewire-speakers: handle packet queueing errors ALSA: firewire-lib: allocate DMA buffer separately ALSA: firewire-lib: use no-info SYT for packets without SYT sample ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driver ALSA: hda - Remove an unused variable in patch_realtek.c ALSA: hda - pin-adc-mux-dmic auto-configuration of 92HD8X codecs ALSA: hda - fix digital mic selection in mixer on 92HD8X codecs ALSA: hda - Move default input-src selection to init part ALSA: hda - Initialize special cases for input src in init phase ALSA: ctxfi - Clear input settings before initialization ALSA: ctxfi - Fix SPDIF status retrieval ALSA: ctxfi - Fix incorrect SPDIF status bit mask ALSA: ctxfi - Fix microphone boost codes/comments ALSA: atiixp - Fix wrong time-out checks during ac-link reset ALSA: intel8x0m: append 'm' to "r_intel8x0" ...

Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6

2011-03-18T00:54:40Z

* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (170 commits) [SCSI] scsi_dh_rdac: Add MD36xxf into device list [SCSI] scsi_debug: add consecutive medium errors [SCSI] libsas: fix ata list corruption issue [SCSI] hpsa: export resettable host attribute [SCSI] hpsa: move device attributes to avoid forward declarations [SCSI] scsi_debug: Logical Block Provisioning (SBC3r26) [SCSI] sd: Logical Block Provisioning update [SCSI] Include protection operation in SCSI command trace [SCSI] hpsa: fix incorrect PCI IDs and add two new ones (2nd try) [SCSI] target: Fix volume size misreporting for volumes > 2TB [SCSI] bnx2fc: Broadcom FCoE offload driver [SCSI] fcoe: fix broken fcoe interface reset [SCSI] fcoe: precedence bug in fcoe_filter_frames() [SCSI] libfcoe: Remove stale fcoe-netdev entries [SCSI] libfcoe: Move FCOE_MTU definition from fcoe.h to libfcoe.h [SCSI] libfc: introduce __fc_fill_fc_hdr that accepts fc_hdr as an argument [SCSI] fcoe, libfc: initialize EM anchors list and then update npiv EMs [SCSI] Revert "[SCSI] libfc: fix exchange being deleted when the abort itself is timed out" [SCSI] libfc: Fixing a memory leak when destroying an interface [SCSI] megaraid_sas: Version and Changelog update ... Fix up trivial conflicts due to whitespace differences in drivers/scsi/libsas/{sas_ata.c,sas_scsi_host.c}