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btrfs: fix parameter description of btrfs_add_extent_mapping 

This fixes the following compiler warnings:

fs/btrfs/extent_map.c:601: warning: Function parameter or member 'fs_info' not described in 'btrfs_add_extent_mapping'
fs/btrfs/extent_map.c:601: warning: Function parameter or member 'em_tree' not described in 'btrfs_add_extent_mapping'
fs/btrfs/extent_map.c:601: warning: Function parameter or member 'em_in' not described in 'btrfs_add_extent_mapping'
fs/btrfs/extent_map.c:601: warning: Function parameter or member 'start' not described in 'btrfs_add_extent_mapping'
fs/btrfs/extent_map.c:601: warning: Function parameter or member 'len' not described in 'btrfs_add_extent_mapping'

Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Nikolay Borisov 2021-01-22 11:57:53 +02:00 committed by David Sterba
parent 401bd2dd12
commit 9ad37bb3ff
1 changed files with 7 additions and 6 deletions
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13
fs/btrfs/extent_map.c
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@ -577,12 +577,13 @@ static noinline int merge_extent_mapping(struct extent_map_tree *em_tree,
}
/**
* btrfs_add_extent_mapping - add extent mapping into em_tree
* @fs_info - used for tracepoint
* @em_tree - the extent tree into which we want to insert the extent mapping
* @em_in - extent we are inserting
* @start - start of the logical range btrfs_get_extent() is requesting
* @len - length of the logical range btrfs_get_extent() is requesting
* Add extent mapping into em_tree
*
* @fs_info: the filesystem
* @em_tree: extent tree into which we want to insert the extent mapping
* @em_in: extent we are inserting
* @start: start of the logical range btrfs_get_extent() is requesting
* @len: length of the logical range btrfs_get_extent() is requesting
*
* Note that @em_in's range may be different from [start, start+len),
* but they must be overlapped.