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authorAl Viro <viro@zeniv.linux.org.uk>2019-12-17 14:15:04 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2020-02-07 00:10:29 -0500
commit0f89589a8c6f1033cb847a606517998efb0da8ee (patch)
treec20e5e8b71553ced5b592d6135a76cb975e12253 /mm
parent7dc2993a9e51dd2eee955944efec65bef90265b7 (diff)
downloadlinux-0f89589a8c6f1033cb847a606517998efb0da8ee.tar.bz2
Pass consistent param->type to fs_parse()
As it is, vfs_parse_fs_string() makes "foo" and "foo=" indistinguishable; both get fs_value_is_string for ->type and NULL for ->string. To make it even more unpleasant, that combination is impossible to produce with fsconfig(). Much saner rules would be "foo" => fs_value_is_flag, NULL "foo=" => fs_value_is_string, "" "foo=bar" => fs_value_is_string, "bar" All cases are distinguishable, all results are expressable by fsconfig(), ->has_value checks are much simpler that way (to the point of the field being useless) and quite a few regressions go away (gfs2 has no business accepting -o nodebug=, for example). Partially based upon patches from Miklos. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm')
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