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authorVyacheslav Dubeyko <slava@dubeyko.com>2013-11-12 15:11:07 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2013-11-13 12:09:32 +0900
commitb3b5b0f03cc4ea074ed0ac110d0afd17e0ccdf9e (patch)
treecc7af9c64356b08ea4a738e23d57171a07c95f6d /fs/hfsplus/xattr.c
parent74a797d99a9fa4871ca978ac65e0f3a90dcf84d8 (diff)
hfsplus: add metadata file's clump size calculation functionality
There are situation when HFS+ volume had been created without AttributesFile. Such situation can take place because of using old mkfs.hfs utility or creation HFS+ volume without taking in mind necessity to use xattrs. For example, Mac OS X 10.4 (Tiger) doesn't create AttributesFile during mkfs phase. Also it is a very frequent situation for the case of users that created HFS+ volumes under Linux. As a result, xattrs and POSIX ACLs on HFS+ volume are unavailable for such users. This patchset implements functionality of AttributesFile creation on HFS+ volume in the case of this metadata file absence during operation of xattr creation. This patch: Add functionality of metadata file's clump size calculation. Operation of AttributesFile creation needs in clump size setting. This value will be used when AttributesFile will be extended. This code is adopted from code of newfs_hfs utility of diskdev_cmds packet http://opensource.apple.com/tarballs/diskdev_cmds/. Signed-off-by: Vyacheslav Dubeyko <slava@dubeyko.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Christoph Hellwig <hch@infradead.org> Cc: Hin-Tak Leung <htl10@users.sourceforge.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/hfsplus/xattr.c')
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