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Commit 1028b55b authored by Theodore Ts'o's avatar Theodore Ts'o
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ext4: allow readdir()'s of large empty directories to be interrupted



If a directory has a large number of empty blocks, iterating over all
of them can take a long time, leading to scheduler warnings and users
getting irritated when they can't kill a process in the middle of one
of these long-running readdir operations.  Fix this by adding checks to
ext4_readdir() and ext4_htree_fill_tree().

Reported-by: default avatarBenjamin LaHaise <bcrl@kvack.org>
Google-Bug-Id: 27880676
Signed-off-by: default avatarTheodore Ts'o <tytso@mit.edu>
parent de17e793
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