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authorLinus Torvalds <torvalds@linux-foundation.org>2012-04-28 14:38:32 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-04-28 14:38:32 -0700
commit3f9f0aa687d45cbc8e7bb3cfd3aab555dcc8872e (patch)
tree317c59226a5741c3de8739c09afedfb84b124dff /fs/stat.c
parent0749708352fddbe0fa81fc25f96e3b1f77c655f4 (diff)
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VFS: clean up and simplify getname_flags()
This removes a number of silly games around strncpy_from_user() in do_getname(), and removes that helper function entirely. We instead make getname_flags() just use strncpy_from_user() properly directly. Removing the wrapper function simplifies things noticeably, mostly because we no longer play the unnecessary games with segments (x86 strncpy_from_user() no longer needs the hack), but also because the empty path handling is just much more obvious. The return value of "strncpy_to_user()" is much more obvious than checking an odd error return case from do_getname(). [ non-x86 architectures were notified of this change several weeks ago, since it is possible that they have copied the old broken x86 strncpy_from_user. But nobody reacted, so .. See http://www.spinics.net/lists/linux-arch/msg17313.html for details ] Cc: linux-arch@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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