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35 lines
1.1 KiB
35 lines
1.1 KiB
4 years ago
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From 72f9ce9c2e6b7b41963c36096d3955e010df9033 Mon Sep 17 00:00:00 2001
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From: Theodore Ts'o <tytso@mit.edu>
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Date: Sun, 23 Jul 2017 18:51:22 -0400
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Subject: [PATCH 1/2] Clarify how the description of the dir_nlink feature in
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the ext4 man page
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commit 7d8f358cdce948df57b1001b9c278f33519afa86
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Signed-off-by: Theodore Ts'o <tytso@mit.edu>
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---
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misc/ext4.5.in | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/misc/ext4.5.in b/misc/ext4.5.in
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index dcef6c08..366916d8 100644
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--- a/misc/ext4.5.in
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+++ b/misc/ext4.5.in
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@@ -68,7 +68,12 @@ ext2 file systems.
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.TP
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.B dir_nlink
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.br
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-This ext4 feature allows more than 65000 subdirectories per directory.
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+Normally ext4 allows an inode to have no more than 65,000 hard links.
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+This applies to files as well as directories, which means that there can
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+be no more than 64,998 subdirectories in a directory (because each of
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+the '..' entries counts as a hard link). This feature lifts this limit
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+by causing ext4 to use a links count of 1 to indicate that the number of
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+hard links to a directory is not known.
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.TP
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.B extent
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.br
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--
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2.20.1
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