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* Merge git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstableLinus Torvalds2010-05-2731-2740/+5066
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable: (27 commits) Btrfs: add more error checking to btrfs_dirty_inode Btrfs: allow unaligned DIO Btrfs: drop verbose enospc printk Btrfs: Fix block generation verification race Btrfs: fix preallocation and nodatacow checks in O_DIRECT Btrfs: avoid ENOSPC errors in btrfs_dirty_inode Btrfs: move O_DIRECT space reservation to btrfs_direct_IO Btrfs: rework O_DIRECT enospc handling Btrfs: use async helpers for DIO write checksumming Btrfs: don't walk around with task->state != TASK_RUNNING Btrfs: do aio_write instead of write Btrfs: add basic DIO read/write support direct-io: do not merge logically non-contiguous requests direct-io: add a hook for the fs to provide its own submit_bio function fs: allow short direct-io reads to be completed via buffered IO Btrfs: Metadata ENOSPC handling for balance Btrfs: Pre-allocate space for data relocation Btrfs: Metadata ENOSPC handling for tree log Btrfs: Metadata reservation for orphan inodes Btrfs: Introduce global metadata reservation ...
| * Btrfs: add more error checking to btrfs_dirty_inodeChris Mason2010-05-271-2/+13
| | | | | | | | | | | | | | The ENOSPC code will now return ENOSPC to btrfs_start_transaction. btrfs_dirty_inode needs to check for this and error out appropriately. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: allow unaligned DIOChris Mason2010-05-261-3/+35
| | | | | | | | | | | | | | In order to support DIO that isn't aligned to the filesystem blocksize, we fall back to buffered for any unaligned DIOs. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: drop verbose enospc printkChris Mason2010-05-261-0/+2
| | | | | | | | | | | | Less printk is good printk. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Fix block generation verification raceYan, Zheng2010-05-261-1/+1
| | | | | | | | | | | | | | | | | | | | After the path is released, the generation number got from block pointer is no long valid. The race may cause disk corruption, because verify_parent_transid() calls clear_extent_buffer_uptodate() when generation numbers mismatch. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: fix preallocation and nodatacow checks in O_DIRECTChris Mason2010-05-261-16/+140
| | | | | | | | | | | | | | | | | | | | | | | | The O_DIRECT code wasn't checking for multiple references on preallocated or nodatacow extents. This means it wasn't honoring snapshots properly. The fix here is to add an explicit check for multiple references This also fixes the math for selecting the correct disk block, making sure not to go past the end of the extent. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: avoid ENOSPC errors in btrfs_dirty_inodeChris Mason2010-05-261-3/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | btrfs_dirty_inode tries to sneak in without much waiting or space reservation, mostly for performance reasons. This usually works well but can cause problems when there are many many writers. When btrfs_update_inode fails with ENOSPC, we fallback to a slower btrfs_start_transaction call that will reserve some space. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: move O_DIRECT space reservation to btrfs_direct_IOChris Mason2010-05-262-6/+8
| | | | | | | | | | | | | | | | | | This moves the delalloc space reservation done for O_DIRECT into btrfs_direct_IO. This way we don't leak reserved space if the generic O_DIRECT write code errors out before it calls into btrfs_direct_IO. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: rework O_DIRECT enospc handlingChris Mason2010-05-254-30/+49
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This changes O_DIRECT write code to mark extents as delalloc while it is processing them. Yan Zheng has reworked the enospc accounting based on tracking delalloc extents and this makes it much easier to track enospc in the O_DIRECT code. There are a few space cases with the O_DIRECT code though, it only sets the EXTENT_DELALLOC bits, instead of doing EXTENT_DELALLOC | EXTENT_DIRTY | EXTENT_UPTODATE, because we don't want to mess with clearing the dirty and uptodate bits when things go wrong. This is important because there are no pages in the page cache, so any extent state structs that we put in the tree won't get freed by releasepage. We have to clear them ourselves as the DIO ends. With this commit, we reserve space at in btrfs_file_aio_write, and then as each btrfs_direct_IO call progresses it sets EXTENT_DELALLOC on the range. btrfs_get_blocks_direct is responsible for clearing the delalloc at the same time it drops the extent lock. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: use async helpers for DIO write checksummingChris Mason2010-05-255-17/+52
| | | | | | | | | | | | | | | | | | | | | | The async helper threads offload crc work onto all the CPUs, and make streaming writes much faster. This changes the O_DIRECT write code to use them. The only small complication was that we need to pass in the logical offset in the file for each bio, because we can't find it in the bio's pages. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: don't walk around with task->state != TASK_RUNNINGChris Mason2010-05-252-3/+4
| | | | | | | | | | | | | | | | Yan Zheng noticed two places we were doing a lot of work without task->state set to TASK_RUNNING. This sets the state properly after we get ready to sleep but decide not to. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: do aio_write instead of writeJosef Bacik2010-05-252-83/+104
| | | | | | | | | | | | | | | | | | In order for AIO to work, we need to implement aio_write. This patch converts our btrfs_file_write to btrfs_aio_write. I've tested this with xfstests and nothing broke, and the AIO stuff magically started working. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: add basic DIO read/write supportJosef Bacik2010-05-256-36/+631
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This provides basic DIO support for reading and writing. It does not do the work to recover from mismatching checksums, that will come later. A few design changes have been made from Jim's code (sorry Jim!) 1) Use the generic direct-io code. Jim originally re-wrote all the generic DIO code in order to account for all of BTRFS's oddities, but thanks to that work it seems like the best bet is to just ignore compression and such and just opt to fallback on buffered IO. 2) Fallback on buffered IO for compressed or inline extents. Jim's code did it's own buffering to make dio with compressed extents work. Now we just fallback onto normal buffered IO. 3) Use ordered extents for the writes so that all of the lock_extent() lookup_ordered() type checks continue to work. 4) Do the lock_extent() lookup_ordered() loop in readpage so we don't race with DIO writes. I've tested this with fsx and everything works great. This patch depends on my dio and filemap.c patches to work. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * direct-io: do not merge logically non-contiguous requestsJosef Bacik2010-05-251-2/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Btrfs cannot handle having logically non-contiguous requests submitted. For example if you have Logical: [0-4095][HOLE][8192-12287] Physical: [0-4095] [4096-8191] Normally the DIO code would put these into the same BIO's. The problem is we need to know exactly what offset is associated with what BIO so we can do our checksumming and unlocking properly, so putting them in the same BIO doesn't work. So add another check where we submit the current BIO if the physical blocks are not contigous OR the logical blocks are not contiguous. Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * direct-io: add a hook for the fs to provide its own submit_bio functionJosef Bacik2010-05-252-8/+45
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because BTRFS can do RAID and such, we need our own submit hook so we can setup the bio's in the correct fashion, and handle checksum errors properly. So there are a few changes here 1) The submit_io hook. This is straightforward, just call this instead of submit_bio. 2) Allow the fs to return -ENOTBLK for reads. Usually this has only worked for writes, since writes can fallback onto buffered IO. But BTRFS needs the option of falling back on buffered IO if it encounters a compressed extent, since we need to read the entire extent in and decompress it. So if we get -ENOTBLK back from get_block we'll return back and fallback on buffered just like the write case. I've tested these changes with fsx and everything seems to work. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * fs: allow short direct-io reads to be completed via buffered IOJosef Bacik2010-05-251-5/+31
| | | | | | | | | | | | | | | | | | | | | | | | | | This is similar to what already happens in the write case. If we have a short read while doing O_DIRECT, instead of just returning, fallthrough and try to read the rest via buffered IO. BTRFS needs this because if we encounter a compressed or inline extent during DIO, we need to fallback on buffered. If the extent is compressed we need to read the entire thing into memory and de-compress it into the users pages. I have tested this with fsx and everything works great. Thanks, Signed-off-by: Josef Bacik <josef@redhat.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Metadata ENOSPC handling for balanceYan, Zheng2010-05-255-747/+1163
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds metadata ENOSPC handling for the balance code. It is consisted by following major changes: 1. Avoid COW tree leave in the phrase of merging tree. 2. Handle interaction with snapshot creation. 3. make the backref cache can live across transactions. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Pre-allocate space for data relocationYan, Zheng2010-05-253-45/+92
| | | | | | | | | | | | | | | | Pre-allocate space for data relocation. This can detect ENOPSC condition caused by fragmentation of free space. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Metadata ENOSPC handling for tree logYan, Zheng2010-05-255-128/+156
| | | | | | | | | | | | | | | | | | Previous patches make the allocater return -ENOSPC if there is no unreserved free metadata space. This patch updates tree log code and various other places to propagate/handle the ENOSPC error. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Metadata reservation for orphan inodesYan, Zheng2010-05-259-66/+365
| | | | | | | | | | | | | | reserve metadata space for handling orphan inodes Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Introduce global metadata reservationYan, Zheng2010-05-258-76/+241
| | | | | | | | | | | | | | Reserve metadata space for extent tree, checksum tree and root tree Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Update metadata reservation for delayed allocationYan, Zheng2010-05-259-415/+232
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Introduce metadata reservation context for delayed allocation and update various related functions. This patch also introduces EXTENT_FIRST_DELALLOC control bit for set/clear_extent_bit. It tells set/clear_bit_hook whether they are processing the first extent_state with EXTENT_DELALLOC bit set. This change is important if set/clear_extent_bit involves multiple extent_state. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Integrate metadata reservation with start_transactionYan, Zheng2010-05-2515-528/+678
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Besides simplify the code, this change makes sure all metadata reservation for normal metadata operations are released after committing transaction. Changes since V1: Add code that check if unlink and rmdir will free space. Add ENOSPC handling for clone ioctl. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Introduce contexts for metadata reservationYan, Zheng2010-05-257-385/+853
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Introducing metadata reseravtion contexts has two major advantages. First, it makes metadata reseravtion more traceable. Second, it can reclaim freed space and re-add them to the itself after transaction committed. Besides add btrfs_block_rsv structure and related helper functions, This patch contains following changes: Move code that decides if freed tree block should be pinned into btrfs_free_tree_block(). Make space accounting more accurate, mainly for handling read only block groups. Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Kill init_btrfs_i()Yan, Zheng2010-05-251-36/+28
| | | | | | | | | | | | | | All code in init_btrfs_i can be moved into btrfs_alloc_inode() Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Shrink delay allocated space in a synchronizedYan, Zheng2010-05-254-121/+88
| | | | | | | | | | | | | | | | | | Shrink delayed allocation space in a synchronized manner is more controllable than flushing all delay allocated space in an async thread. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Kill allocate_wait in space_infoYan, Zheng2010-05-252-76/+58
| | | | | | | | | | | | | | | | We already have fs_info->chunk_mutex to avoid concurrent chunk creation. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
| * Btrfs: Link block groups of different raid typesYan, Zheng2010-05-253-55/+121
| | | | | | | | | | | | | | | | | | The size of reserved space is stored in space_info. If block groups of different raid types are linked to separate space_info, changing allocation profile will corrupt reserved space accounting. Signed-off-by: Yan Zheng <zheng.yan@oracle.com> Signed-off-by: Chris Mason <chris.mason@oracle.com>
* | Avoid warning when CPU hotplug isn't enabledLinus Torvalds2010-05-271-6/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit e9fb7631ebcd ("cpu-hotplug: introduce cpu_notify(), __cpu_notify(), cpu_notify_nofail()") also introduced this annoying warning: kernel/cpu.c:157: warning: 'cpu_notify_nofail' defined but not used when CONFIG_HOTPLUG_CPU wasn't set. So move that helper inside the #ifdef CONFIG_HOTPLUG_CPU region, and simplify it while at it. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds2010-05-2710-306/+708
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: [SCSI] fix race in scsi_target_reap [SCSI] aacraid: Eliminate use after free [SCSI] arcmsr: Support HW reset for EH and polling scheme for scsi device [SCSI] bfa: fix system crash when reading sysfs fc_host statistics [SCSI] iscsi_tcp: remove sk_sleep check [SCSI] ipr: improve interrupt service routine performance [SCSI] ipr: set the data list length in the request control block [SCSI] ipr: fix a register read to use the correct address for 64 bit adapters [SCSI] ipr: include the resource path in the IOA status area structure [SCSI] ipr: implement fixes for 64 bit adapter support [SCSI] be2iscsi: correct return value in mgmt_invalidate_icds()
| * | [SCSI] fix race in scsi_target_reapAlan Stern2010-05-251-4/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch (as1357) fixes a race in SCSI target allocation and release. Putting a target in the STARGET_DEL state isn't protected by the host lock, so an old target structure could be reused by a new device even though it's about to be deleted. The cure is to change the state while still holding the host lock. Signed-off-by: Alan Stern <stern@rowland.harvard.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] aacraid: Eliminate use after freeJulia Lawall2010-05-251-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The debugging code using the freed structure is moved before the kfree. A simplified version of the semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @free@ expression E; position p; @@ kfree@p(E) @@ expression free.E, subE<=free.E, E1; position free.p; @@ kfree@p(E) ... ( subE = E1 | * E ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] arcmsr: Support HW reset for EH and polling scheme for scsi deviceNick Cheng2010-05-253-191/+525
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. To support instantaneous report for SCSI device existing by periodic polling 2. In arcmsr_iop_xfer(), inform AP of F/W's deadlock state to prevent endless waiting 3. To block the coming SCSI command while the driver is handling bus reset 4. To support HW reset in bus reset error handler Signed-off-by: Nick Cheng <nick.cheng@areca.com.tw> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] bfa: fix system crash when reading sysfs fc_host statisticsKrishna Gudipati2010-05-251-0/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The port data structure related to fc_host statistics collection is not initialized. This causes system crash when reading the fc_host statistics. The fix is to initialize port structure during driver attach. Signed-off-by: Krishna Gudipati <kgudipat@brocade.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] iscsi_tcp: remove sk_sleep checkMike Christie2010-05-251-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | There is no need to call sk_sleep before calling wake_up_interruptible, because the wait_queue_head is now with the socket. Signed-off-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] ipr: improve interrupt service routine performanceWayne Boyer2010-05-241-33/+30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | During performance testing on P7 machines it was observed that the interrupt service routine was doing unnecessary MMIO operations. This patch rearranges the logic of the routine and moves some of the code out of the main routine. The result is that there are now fewer MMIO operations in the performance path of the code. Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] ipr: set the data list length in the request control blockWayne Boyer2010-05-241-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In bring up testing for the new 64 bit adapters, the first read command failed after loading the driver. The cause was that the command requires more than one scatter gather element and the corresponding code to set the data list length in the request control block was missing. This patch adds the correct assignment. Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] ipr: fix a register read to use the correct address for 64 bit adaptersWayne Boyer2010-05-242-5/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix ipr_reset_enable_ioa() to read the correct IOA to host interrupt register address for 64 bit adapters. We need to read the lower 32 bits, not the upper 32 bits. Also change the write of the 64 bit mask value to a single writeq instead of two writel calls. Finally, use the correct u8 type for the type field in the ipr_resource_entry structure. Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] ipr: include the resource path in the IOA status area structureWayne Boyer2010-05-242-59/+98
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The IOA status area now includes the new resource path field for 64 bit adapters. This patch changes the driver to fix the ioasa structure and to use the correct structure definition based on the type of adatper. Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] ipr: implement fixes for 64 bit adapter supportWayne Boyer2010-05-242-5/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | Implement some small fixes for 64 bit support that were preventing the adapter from becoming operational. Signed-off-by: Wayne Boyer <wayneb@linux.vnet.ibm.com> Acked-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
| * | [SCSI] be2iscsi: correct return value in mgmt_invalidate_icds()Dan Carpenter2010-05-241-3/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This function should return 0 on error. Returning -1 would cause a crash. Also there is an extra space before the newline character and a missing space between the "for" and the "mgmt_invalidate_icds". I put the string on one line. The current version of checkpatch.pl complains that the line is too long, but it makes grepping easier. Signed-off-by: Dan Carpenter <error27@gmail.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
* | | Merge branch 'for_linus' of ↵Linus Torvalds2010-05-2723-834/+1136
|\ \ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (40 commits) ext4: Make fsync sync new parent directories in no-journal mode ext4: Drop whitespace at end of lines ext4: Fix compat EXT4_IOC_ADD_GROUP ext4: Conditionally define compat ioctl numbers tracing: Convert more ext4 events to DEFINE_EVENT ext4: Add new tracepoints to track mballoc's buddy bitmap loads ext4: Add a missing trace hook ext4: restart ext4_ext_remove_space() after transaction restart ext4: Clear the EXT4_EOFBLOCKS_FL flag only when warranted ext4: Avoid crashing on NULL ptr dereference on a filesystem error ext4: Use bitops to read/modify i_flags in struct ext4_inode_info ext4: Convert calls of ext4_error() to EXT4_ERROR_INODE() ext4: Convert callers of ext4_get_blocks() to use ext4_map_blocks() ext4: Add new abstraction ext4_map_blocks() underneath ext4_get_blocks() ext4: Use our own write_cache_pages() ext4: Show journal_checksum option ext4: Fix for ext4_mb_collect_stats() ext4: check for a good block group before loading buddy pages ext4: Prevent creation of files larger than RLIMIT_FSIZE using fallocate ext4: Remove extraneous newlines in ext4_msg() calls ... Fixed up trivial conflict in fs/ext4/fsync.c
| * | | ext4: Make fsync sync new parent directories in no-journal modeFrank Mayhar2010-05-173-2/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a new ext4 state to tell us when a file has been newly created; use that state in ext4_sync_file in no-journal mode to tell us when we need to sync the parent directory as well as the inode and data itself. This fixes a problem in which a panic or power failure may lose the entire file even when using fsync, since the parent directory entry is lost. Addresses-Google-Bug: #2480057 Signed-off-by: Frank Mayhar <fmayhar@google.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | ext4: Drop whitespace at end of linesTheodore Ts'o2010-05-179-23/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch was generated using: #!/usr/bin/perl -i while (<>) { s/[ ]+$//; print; } Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | ext4: Fix compat EXT4_IOC_ADD_GROUPBen Hutchings2010-05-172-2/+39
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | struct ext4_new_group_input needs to be converted because u64 has only 32-bit alignment on some 32-bit architectures, notably i386. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | ext4: Conditionally define compat ioctl numbersBen Hutchings2010-05-171-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It is unnecessary, and in general impossible, to define the compat ioctl numbers except when building the filesystem with CONFIG_COMPAT defined. Signed-off-by: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | tracing: Convert more ext4 events to DEFINE_EVENTLi Zefan2010-05-171-44/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use DECLARE_EVENT_CLASS, and save ~2.7K: text data bss dec hex filename 274441 7200 260 281901 44d2d fs/ext4/ext4.o.orig 271881 7040 256 279177 44289 fs/ext4/ext4.o 4 events are converted: ext4__mb_new_pa: ext4_mb_new_inode_pa, ext4_mb_new_group_pa ext4__mballoc: ext4_mballoc_discard, ext4_mballoc_free No change in functionality. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | ext4: Add new tracepoints to track mballoc's buddy bitmap loadsTheodore Ts'o2010-05-172-0/+35
| | | | | | | | | | | | | | | | Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | ext4: Add a missing trace hookLi Zefan2010-05-171-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Commit f8ec9d6837241865cf99bed97bb99f4399fd5a03 added a trace event ext4_da_release_space, but didn't add some corresponding trace hook. Signed-off-by: Li Zefan <lizf@cn.fujitsu.com> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
| * | | ext4: restart ext4_ext_remove_space() after transaction restartDmitry Monakhov2010-05-171-7/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | If i_data_sem was internally dropped due to transaction restart, it is necessary to restart path look-up because extents tree was possibly modified by ext4_get_block(). https://bugzilla.kernel.org/show_bug.cgi?id=15827 Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org> Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Acked-by: Jan Kara <jack@suse.cz>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-20 12:45:16 +0000