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34 lines
1.1 KiB
34 lines
1.1 KiB
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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