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btrfs: Document parameters of btrfs_reserve_extent
authorNikolay Borisov <nborisov@suse.com>
Tue, 13 Mar 2018 10:22:32 +0000 (12:22 +0200)
committerDavid Sterba <dsterba@suse.com>
Fri, 30 Mar 2018 23:26:56 +0000 (01:26 +0200)
commitacfd562a8d00b166c124ee4555c59a4c7c75e08a
tree7837f05b310758fc385b99ef4842204f982af0a4tree | snapshot
parent0ed5d9fbde02d9d3566d9ae73f2dd37b3e2b87aacommit | diff
btrfs: Document parameters of btrfs_reserve_extent

This function is the entry to the extent allocator and as such has
quite a number of parameters. Some of those have subtle effects on the
allocation algorithm. Document the parameters.

Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.com>
fs/btrfs/extent-tree.c diff | blob | history
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