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authorDuane Griffin <duaneg@dghda.com>2007-07-15 23:41:22 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-16 09:05:49 -0700
commit1e96b7ca1e8f17c5117da369daaa7cf2edfdf9b1 (patch)
treee770e898c43bc1e24bec330d97ef26c4f49189f8 /fs/hfsplus/super.c
parent29bc5b4f73a65ef667df50d5ed474e371471d915 (diff)
HFS+: refactor ASCII to unicode conversion routine for later reuse
The HFS+ filesystem is case-insensitive and does automatic unicode decomposition by default, but does not provide custom dentry operations. This can lead to multiple dentries being cached for lookups on a filename with varying case and/or character (de)composition. These patches add custom dentry hash and comparison operations for case-sensitive and/or automatically decomposing HFS+ filesystems. Unicode decomposition and case-folding are performed as required to ensure equivalent filenames are hashed to the same values and compare as equal. This patch: Refactor existing HFS+ ASCII to unicode string conversion routine to split out character conversion functionality. This will be reused by the custom dentry hash and comparison routines. This approach avoids unnecessary memory allocation compared to using the string conversion routine directly in the new functions. [akpm@linux-foundation.org: avoid use-of-uninitialised] Signed-off-by: Duane Griffin <duaneg@dghda.com> Signed-off-by: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs/hfsplus/super.c')
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