- 17 Feb, 2017 40 commits
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David Sterba authored
The name parameters have never been used, as the name is passed via the dentry. Reviewed-by:
Liu Bo <bo.li.liu@oracle.com> Signed-off-by:
David Sterba <dsterba@suse.com>
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David Sterba authored
The 'device' used to be added in that function, but now it's done by the caller. Reviewed-by:
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David Sterba authored
We grab fs_info from other parameters. Reviewed-by:
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David Sterba authored
Never used for anything meaningful since we have our own superblock filler. Reviewed-by:
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David Sterba authored
The 'tree' was used to call locking hook that does not exist anymore. Reviewed-by:
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David Sterba authored
Never used. Reviewed-by:
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David Sterba authored
The logic has been updated in "Btrfs: make mapping->writeback_index point to the last written page" (a9132667) and page is not needed anymore. Reviewed-by:
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David Sterba authored
This used to hold number of maximum pages to allocate, but this is now limited by BIO_MAX_PAGES. The local are now unused and removed as well. Reviewed-by:
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David Sterba authored
Not needed. Reviewed-by:
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David Sterba authored
Never needed. Reviewed-by:
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David Sterba authored
None of the checks need to know the ro/rw status as they're all not changing the superblock. Moreover, we can access the sb flags directly if we'd need to decide by the ro/rw status. Reviewed-by:
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David Sterba authored
Added but never used. Reviewed-by:
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David Sterba authored
Unused since qgroup refactoring that split data and metadata accounting, the btrfs_qgroup_free helper. Reviewed-by:
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David Sterba authored
Unused since long ago. Reviewed-by:
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David Sterba authored
Unused since long ago. Reviewed-by:
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David Sterba authored
write_all_supers and write_ctree_super are almost equal, the parameter 'trans' is unused so we can drop it and have just one helper. Reviewed-by:
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David Sterba authored
The barriers are handled by the caller. Reviewed-by:
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David Sterba authored
Never used. Reviewed-by:
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David Sterba authored
Added but never needed. Reviewed-by:
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David Sterba authored
Added but never used. Reviewed-by:
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David Sterba authored
Never used in that function. Reviewed-by:
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David Sterba authored
Change the name so it matches the naming we already use eg. for btrfs_path. Suggested-by:
Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by:
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David Sterba authored
There was never need for RCU protection around reading nodesize or other fairly constant filesystem data. Signed-off-by: -
David Sterba authored
The helper name is not too helpful and is just wrapping a simple call. Signed-off-by: -
David Sterba authored
The quota status used to be tracked as a variable, so the mutex was needed (until "Btrfs: add a flags field to btrfs_fs_info" afcdd129). Since the status is a bit modified atomically and we don't hold the mutex beyond the check, we can drop it. Signed-off-by:
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David Sterba authored
Status of quotas should be the first check in btrfs_qgroup_account_extent and we can return immediatelly, no need to do no-op ulist frees. Signed-off-by: -
David Sterba authored
We can embed range_changed to the extent changeset to address following problems: - no need to allocate ulist dynamically, we also get rid of the GFP_NOFS for free - fix lack of allocation failure checking in btrfs_qgroup_reserve_data The stack consuption where extent_changeset is used slightly increases: before: 16 after: 16 - 8 (for pointer) + 32 (sizeof ulist) = 40 Which is bearable. Reviewed-by:
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David Sterba authored
Make ulist_fini externally visible so the ulist API is complete. Signed-off-by: -
David Sterba authored
Internal helper. Signed-off-by: -
David Sterba authored
We do a readahead of the free space cache inode to speed things up but the failure is not fatal, like in other readahead cases. Proper reads would need to happen anyway and any errors would be caught there. Reviewed-by:
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David Sterba authored
Qgroup relations are added/deleted from ioctl, we hold the high level qgroup lock, no deadlocks or recursion from the allocation possible here. Signed-off-by: -
David Sterba authored
We don't need to use GFP_NOFS here as this is called from ioctls an the only lock held is the subvol_sem, which is of a high level and protects creation/renames/deletion and is never held in the writeout paths. Signed-off-by: -
David Sterba authored
The qgroup config is read during mount, we do not have to use NOFS. Signed-off-by: -
David Sterba authored
We don't need to use GFP_NOFS here as this is called from ioctls an the only lock held is the subvol_sem, which is of a high level and protects creation/renames/deletion and is never held in the writeout paths. Signed-off-by: -
Liu Bo authored
As 0 refers to an existing type BTRFS_ORDERED_IO_DONE, this specifies a new type 'REGULAR' for regular IO. Signed-off-by:
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Liu Bo authored
We have similar codes to create and insert extent mapping around IO path, this merges them into a single helper. Signed-off-by:
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Liu Bo authored
This uses a helper instead of open code around used byte of space_info everywhere. Signed-off-by:
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Liu Bo authored
We don't need to take the lock if the block group has not been cached. Signed-off-by:
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Qu Wenruo authored
The original csum error message only outputs inode number, offset, check sum and expected check sum. However no root objectid is outputted, which sometimes makes debugging quite painful under multi-subvolume case (including relocation). Also the checksum output is decimal, which seldom makes sense for users/developers and is hard to read in most time. This patch will add root objectid, which will be %lld for rootid larger than LAST_FREE_OBJECTID, and hex csum output for better readability. Signed-off-by:
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Takafumi Kubota authored
If btrfs_bio_alloc fails in submit_extent_page, submit_extent_page returns without clearing the writeback bit of the failed page. __extent_writepage_io, that is a caller of submit_extent_page, does not clear the remaining writeback bit anywhere. As a result, this will cause the hang at filemap_fdatawait_range, because it waits the writeback bit to be cleared from the failed page. So, we have to call end_page_writeback to clear the writeback bit. For reproducing the hang, we inject a fault like if (should_failtest()) { // I define should_failtest() bio = NULL; } else { bio = btrfs_bio_alloc(...); } in submit_extent_page. We should also check whether page has the bit before end_page_writeback, to avoid the conflict against the other end_page_writeback in bio_endio. Thus, we add PageWriteback checks not only in __extent_writepage_io, but also in write_one_eb too, because it misses the check. Signed-off-by:Takafumi Kubota <takafumi.kubota1012@sslab.ics.keio.ac.jp> Reviewed-by:
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