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2017-02-28btrfs: drop checks for mandatory extent_io_ops callbacksDavid Sterba1-4/+3
We know that eadpage_end_io_hook, submit_bio_hook and merge_bio_hook are always defined so we can drop the checks before we call them. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: document existence of extent_io ops callbacksDavid Sterba3-11/+26
Some of the callbacks defined in btree_extent_io_ops and btrfs_extent_io_ops do always exist so we don't need to check the existence before each call. This patch just reorders the definition and documents which are mandatory/optional. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: let writepage_end_io_hook return voidDavid Sterba3-11/+6
There's no error path in any of the instances, always return 0. Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: do proper error handling in btrfs_insert_xattr_itemDavid Sterba1-1/+2
The space check in btrfs_insert_xattr_item is duplicated in it's caller (do_setxattr) so we won't hit the BUG_ON. Continuing without any check could be disasterous so turn it to a proper error handling. Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: handle allocation error in update_dev_stat_itemDavid Sterba1-1/+2
Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: remove BUG_ON from __tree_mod_log_insertDavid Sterba1-2/+0
All callers dereference the 'tm' parameter before it gets to this function, the NULL check does not make much sense here. Reviewed-by: Liu Bo <bo.li.liu@oracle.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: derive maximum output size in the compression implementationDavid Sterba5-14/+9
The value of max_out can be calculated from the parameters passed to the compressors, which is number of pages and the page size, and we don't have to needlessly pass it around. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: use predefined limits for calculating maximum number of pages for compressionDavid Sterba1-5/+6
Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: export compression buffer limits in a headerDavid Sterba2-10/+15
Move the buffer limit definitions out of compress_file_range. Reviewed-by: Qu Wenruo <quwenruo@cn.fujitsu.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: merge nr_pages input and output parameter in compress_pagesDavid Sterba5-15/+11
The parameter saying how many pages can be allocated at maximum can be merged with the output page counter, to save some stack space. The compression implementation will sink the parameter to a local variable so everything works as before. The nr_pages variables can also be simply merged in compress_file_range into one. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: merge length input and output parameter in compress_pagesDavid Sterba5-20/+18
The length parameter is basically duplicated for input and output in the top level caller of the compress_pages chain. We can simply use one variable for that and reduce stack consumption. The compression implementation will sink the parameter to a local variable so everything works as before. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: constify name of subvolume in creation helpersDavid Sterba1-3/+3
Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: constify buffers used by compression helpersDavid Sterba3-3/+3
Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: constify input buffer of btrfs_csum_dataDavid Sterba2-3/+3
The function does not modify the input buffer, also update a typecast in one caller. Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: constify device path passed to relevant helpersDavid Sterba4-18/+22
Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_inode_resume_unlocked_dio take btrfs_inodeNikolay Borisov2-4/+3
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_inode_block_unlocked_dio take btrfs_inodeNikolay Borisov2-3/+3
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_add_nondir take btrfs_inodeNikolay Borisov1-9/+13
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_add_link take btrfs_inodeNikolay Borisov3-23/+26
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_del_delalloc_inode take btrfs_inodeNikolay Borisov1-7/+7
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make get_extent_t take btrfs_inodeNikolay Borisov8-54/+59
In addition to changing the signature, this patch also switches all the functions which are used as an argument to also take btrfs_inode. Namely those are: btrfs_get_extent and btrfs_get_extent_filemap. Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make check_extent_to_block take btrfs_inodeNikolay Borisov1-5/+6
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make clone_update_extent_map take btrfs_inodeNikolay Borisov1-14/+13
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_clear_bit_hook take btrfs_inodeNikolay Borisov3-21/+25
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_extent_item_to_extent_map take btrfs_inodeNikolay Borisov4-8/+10
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_log_inode_parent take btrfs_inodeNikolay Borisov1-26/+24
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make check_parent_dirs_for_sync take btrfs_inodeNikolay Borisov1-14/+14
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_orphan_add take btrfs_inodeNikolay Borisov4-22/+24
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_orphan_del take btrfs_inodeNikolay Borisov1-20/+20
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_free_io_failure_record take btrfs_inodeNikolay Borisov3-7/+9
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make clean_io_failure take btrfs_inodeNikolay Borisov3-14/+15
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make repair_io_failure take btrfs_inodeNikolay Borisov3-11/+12
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make check_compressed_csum take btrfs_inodeNikolay Borisov1-5/+4
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make btrfs_print_data_csum_error take btrfs_inodeNikolay Borisov3-7/+8
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: make free_io_failure take btrfs_inodeNikolay Borisov3-11/+13
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make lock_and_cleanup_extent_if_need take btrfs_inodeNikolay Borisov1-14/+14
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make check_can_nocow take btrfs_inodeNikolay Borisov1-10/+12
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_lookup_ordered_range take btrfs_inodeNikolay Borisov6-18/+19
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_mark_extent_written take btrfs_inodeNikolay Borisov3-6/+6
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make fill_holes take btrfs_inodeNikolay Borisov1-19/+18
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make hole_mergeable take btrfs_inodeNikolay Borisov1-4/+5
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_drop_extent_cache take btrfs_inodeNikolay Borisov6-26/+30
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_requeue_inode_defrag take btrfs_inodeNikolay Borisov1-5/+5
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make (__)btrfs_add_inode_defrag take btrfs_inodeNikolay Borisov3-16/+17
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: all btrfs_delalloc_release_metadata take btrfs_inodeNikolay Borisov7-19/+22
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_delalloc_reserve_metadata take btrfs_inodeNikolay Borisov4-38/+39
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_orphan_release_metadata take btrfs_inodeNikolay Borisov3-8/+8
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make btrfs_orphan_reserve_metadata take btrfs_inodeNikolay Borisov3-7/+7
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make calc_csum_metadata_size take btrfs_inodeNikolay Borisov1-15/+12
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
2017-02-28btrfs: Make drop_outstanding_extent take btrfs_inodeNikolay Borisov1-12/+11
Signed-off-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: David Sterba <dsterba@suse.com>
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