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fat: don't use free_clusters for fat32

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It seems that the recent Windows changed specification, and it's
undocumented.  Windows doesn't update ->free_clusters correctly.

This patch doesn't use ->free_clusters by default.  (instead, add "usefree"
for forcing to use it)

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: Juergen Beisert <juergen127@kreuzholzen.de>
Cc: Andreas Schwab <schwab@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
OGAWA Hirofumi
2007-05-08 00:31:01 -07:00
committed by Linus Torvalds
parent 4ff773bbde
commit 28ec039c21
3 changed files with 20 additions and 4 deletions
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7
Documentation/filesystems/vfat.txt
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@@ -57,6 +57,13 @@ nonumtail=<bool> -- When creating 8.3 aliases, normally the alias will
currently exist in the directory, 'longfile.txt' will
be the short alias instead of 'longfi~1.txt'.
usefree -- Use the "free clusters" value stored on FSINFO. It'll
be used to determine number of free clusters without
scanning disk. But it's not used by default, because
recent Windows don't update it correctly in some
case. If you are sure the "free clusters" on FSINFO is
correct, by this option you can avoid scanning disk.
quiet -- Stops printing certain warning messages.
check=s|r|n -- Case sensitivity checking setting.