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| author |   Al Viro <viro@zeniv.linux.org.uk> | 2019-12-17 14:15:04 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2020-02-07 00:10:29 -0500 |
| commit | 0f89589a8c6f1033cb847a606517998efb0da8ee (patch) | |
| tree | c20e5e8b71553ced5b592d6135a76cb975e12253 /include | |
| parent | NFSv4.0: nfs4_do_fsinfo() should not do implicit lease renewals (diff) | |
| download | linux-dev-0f89589a8c6f1033cb847a606517998efb0da8ee.tar.xz linux-dev-0f89589a8c6f1033cb847a606517998efb0da8ee.zip | |
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 'include')
| -rw-r--r-- | include/linux/fs_parser.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/fs_parser.h b/include/linux/fs_parser.h index dee140db6240..45323203128b 100644 --- a/include/linux/fs_parser.h +++ b/include/linux/fs_parser.h @@ -72,7 +72,6 @@ struct fs_parameter_description { */ struct fs_parse_result { bool negated; /* T if param was "noxxx" */ - bool has_value; /* T if value supplied to param */ union { bool boolean; /* For spec_bool */ int int_32; /* For spec_s32/spec_enum */ |