kill struct filename.separate

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just make const char iname[] the last member and compare name->name with
name->iname instead of checking name->separate

We need to make sure that out-of-line name doesn't end up allocated adjacent
to struct filename refering to it; fortunately, it's easy to achieve - just
allocate that struct filename with one byte in ->iname[], so that ->iname[0]
will be inside the same object and thus have an address different from that
of out-of-line name [spotted by Boqun Feng <boqun.feng@gmail.com>]

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

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Al Viro 2015-02-22 20:07:13 -05:00

parent 6e8a1f8741

commit fd2f7cb5bc

2 changed files with 17 additions and 14 deletions

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29

fs/namei.c

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2

include/linux/fs.h

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