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btrfs: remove unused flag EXTENT_BUFFER_READAHEAD

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This flag is no longer being used.  It was added by commit ab0fff0305
("btrfs: add READAHEAD extent buffer flag") and used in commits:

79fb65a1f6 ("Btrfs: don't call readahead hook until we have read the entire eb")
78e62c02ab ("btrfs: Remove extent_io_ops::readpage_io_failed_hook")
371cdc0700 ("btrfs: introduce subpage metadata validation check")

Finally all the code using it was removed by commit f26c923860 ("btrfs: remove
reada infrastructure").

Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Daniel Vacek <neelx@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Daniel Vacek 2025-03-25 17:31:37 +01:00 committed by David Sterba
parent 40f47f6d72
commit 350362e95f
1 changed files with 0 additions and 2 deletions
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2
fs/btrfs/extent_io.h
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@ -39,8 +39,6 @@ enum {
EXTENT_BUFFER_UPTODATE,
EXTENT_BUFFER_DIRTY,
EXTENT_BUFFER_CORRUPT,
/* this got triggered by readahead */
EXTENT_BUFFER_READAHEAD,
EXTENT_BUFFER_TREE_REF,
EXTENT_BUFFER_STALE,
EXTENT_BUFFER_WRITEBACK,