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authorAl Viro <viro@ZenIV.linux.org.uk>2013-01-26 00:11:36 +0000
committerEric Van Hensbergen <ericvh@gmail.com>2013-02-10 16:29:33 -0600
commit7ffdea7ea36cd1efebab65d1b221f05deaab00cd (patch)
treefb899d7da5e5774c102a70692fac779018b29df6 /drivers
parent836dc9e3fbbab0c30aa6e664417225f5c1fb1c39 (diff)
locking in fs/9p ->readdir()
... is really excessive. First of all, ->readdir() is serialized by file->f_path.dentry->d_inode->i_mutex; playing with file->f_path.dentry->d_lock is not buying you anything. Moreover, rdir->mutex is pointless for exactly the same reason - you'll never see contention on it. While we are at it, there's no point in having rdir->buf a pointer - you have it point just past the end of rdir, so it might as well be a flex array (and no, it's not a gccism). Absolutely untested patch follows: Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'drivers')
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