linux-ext4 - [Bug 196405] mkdir mishandles st_nlink in ext4 directory with 64997 subdirectories

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Message-ID: <bug-196405-13602-I8nReaxO6S@https.bugzilla.kernel.org/>
Date:   Tue, 18 Jul 2017 21:57:35 +0000
From:   bugzilla-daemon@...zilla.kernel.org
To:     linux-ext4@...nel.org
Subject: [Bug 196405] mkdir mishandles st_nlink in ext4 directory with 64997
 subdirectories

https://bugzilla.kernel.org/show_bug.cgi?id=196405

Andreas Dilger (adilger.kernelbugzilla@...ger.ca) changed:

           What    |Removed                     |Added
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                 CC|                            |adilger.kernelbugzilla@...g
                   |                            |er.ca

--- Comment #5 from Andreas Dilger (adilger.kernelbugzilla@...ger.ca) ---
FYI, the "link count == 1" meaning is historical for ancient filesystems which
didn't track the link count of the directory at all.  In that respect, it
didn't mean "lots of subdirectories", but rather "I don't know the subdirectory
count at all".

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