Hosts the 0x221E linux distro kernel. https://git.0xinfinity.dev/distro/kernel.git/atom?h=linux-3.4.y 2012-04-27T18:51:05Z 2012-04-27T18:51:05Z Chris Mason 2012-04-27T18:31:29Z urn:sha1:dc7fdde39e4962b1a88741f7eba2a6b3be1285d8 We're spending huge amounts of time on lock contention during end_io processing because we unconditionally assume we are overwriting an existing extent in the file for each IO. This checks to see if we are outside i_size, and if so, it uses a less expensive readonly search of the btree to look for existing extents. Signed-off-by: Chris Mason <chris.mason@oracle.com> 2012-03-22T10:52:54Z Jeff Mahoney 2012-03-12T15:03:00Z urn:sha1:79787eaab46121d4713ed03c8fc63b9ec3eaec76 btrfs currently handles most errors with BUG_ON. This patch is a work-in- progress but aims to handle most errors other than internal logic errors and ENOMEM more gracefully. This iteration prevents most crashes but can run into lockups with the page lock on occasion when the timing "works out." Signed-off-by: Jeff Mahoney <jeffm@suse.com> 2012-03-22T00:45:35Z Jeff Mahoney 2012-03-01T13:57:19Z urn:sha1:d0082371cf086e0ba2bbd0367b2c9920532df24f lock_extent and unlock_extent are always called with GFP_NOFS, drop the argument and use GFP_NOFS consistently. Signed-off-by: Jeff Mahoney <jeffm@suse.com> 2012-02-24T17:02:53Z Linus Torvalds 2012-02-24T17:02:53Z urn:sha1:855a85f704026d5fe7de94fb1b765fe03404507f Quoth Chris: "This is later than I wanted because I got backed up running through btrfs bugs from the Oracle QA teams. But they are all bug fixes that we've queued and tested since rc1. Nothing in particular stands out, this just reflects bug fixing and QA done in parallel by all the btrfs developers. The most user visible of these is: Btrfs: clear the extent uptodate bits during parent transid failures Because that helps deal with out of date drives (say an iscsi disk that has gone away and come back). The old code wasn't always properly retrying the other mirror for this type of failure." * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (24 commits) Btrfs: fix compiler warnings on 32 bit systems Btrfs: increase the global block reserve estimates Btrfs: clear the extent uptodate bits during parent transid failures Btrfs: add extra sanity checks on the path names in btrfs_mksubvol Btrfs: make sure we update latest_bdev Btrfs: improve error handling for btrfs_insert_dir_item callers Btrfs: be less strict on finding next node in clear_extent_bit Btrfs: fix a bug on overcommit stuff Btrfs: kick out redundant stuff in convert_extent_bit Btrfs: skip states when they does not contain bits to clear Btrfs: check return value of lookup_extent_mapping() correctly Btrfs: fix deadlock on page lock when doing auto-defragment Btrfs: fix return value check of extent_io_ops btrfs: honor umask when creating subvol root btrfs: silence warning in raid array setup btrfs: fix structs where bitfields and spinlock/atomic share 8B word btrfs: delalloc for page dirtied out-of-band in fixup worker Btrfs: fix memory leak in load_free_space_cache() btrfs: don't check DUP chunks twice Btrfs: fix trim 0 bytes after a device delete ... 2012-02-15T15:40:23Z Jeff Liu 2012-02-09T06:25:50Z urn:sha1:6af021d8fc3bcce790e7fbb391e39c5920fa3f71 Given that ENXIO only means "offset beyond EOF" for either SEEK_DATA or SEEK_HOLE inquiry in a desired file range, so we should return the internal error unchanged if btrfs_get_extent_fiemap() call failed, rather than ENXIO. Cc: Dave Chinner <david@fromorbit.com> Signed-off-by: Jie Liu <jeff.liu@oracle.com> 2012-02-01T01:27:41Z Chris Mason 2012-02-01T01:27:41Z urn:sha1:d98456fcafa6f3fd1985f9b7429aaa3531c6bfa0 btrfs_fallocate tries to allocate space only if ranges in the file don't already exist. But the enospc checks it does are not allowed with extents locked. Signed-off-by: Chris Mason <chris.mason@oracle.com> 2012-01-17T23:49:54Z Linus Torvalds 2012-01-17T23:49:54Z urn:sha1:f9156c7288e2d11501ded4d7fe6d9a3a41ee4057 * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs: (62 commits) Btrfs: use larger system chunks Btrfs: add a delalloc mutex to inodes for delalloc reservations Btrfs: space leak tracepoints Btrfs: protect orphan block rsv with spin_lock Btrfs: add allocator tracepoints Btrfs: don't call btrfs_throttle in file write Btrfs: release space on error in page_mkwrite Btrfs: fix btrfsck error 400 when truncating a compressed Btrfs: do not use btrfs_end_transaction_throttle everywhere Btrfs: add balance progress reporting Btrfs: allow for resuming restriper after it was paused Btrfs: allow for canceling restriper Btrfs: allow for pausing restriper Btrfs: add skip_balance mount option Btrfs: recover balance on mount Btrfs: save balance parameters to disk Btrfs: soft profile changing mode (aka soft convert) Btrfs: implement online profile changing Btrfs: do not reduce profile in do_chunk_alloc() Btrfs: virtual address space subset filter ... Fix up trivial conflict in fs/btrfs/ioctl.c due to the use of the new mnt_drop_write_file() helper. 2012-01-16T20:28:55Z Josef Bacik 2012-01-13T00:10:12Z urn:sha1:45a8090e626ab470c91142954431a93846030b0d Btrfs_throttle will make us wait if there is a currently committing transaction until we can open new transactions, which is ridiculous since we don't actually start any transactions within the file write path anyway, so all this does is introduce big latencies if we have a sync/fsync heavy workload going on while somebody else is trying to do work. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com> 2012-01-16T20:26:31Z Chris Mason 2012-01-16T20:26:31Z urn:sha1:9785dbdf265ddc47d5c88267d89a97648c0dc14b 2012-01-11T00:59:59Z Linus Torvalds 2012-01-11T00:59:59Z urn:sha1:001a541ea9163ace5e8243ee0e907ad80a4c0ec2 * 'writeback-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/wfg/linux: writeback: move MIN_WRITEBACK_PAGES to fs-writeback.c writeback: balanced_rate cannot exceed write bandwidth writeback: do strict bdi dirty_exceeded writeback: avoid tiny dirty poll intervals writeback: max, min and target dirty pause time writeback: dirty ratelimit - think time compensation btrfs: fix dirtied pages accounting on sub-page writes writeback: fix dirtied pages accounting on redirty writeback: fix dirtied pages accounting on sub-page writes writeback: charge leaked page dirties to active tasks writeback: Include all dirty inodes in background writeback