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| author | Will Deacon <will.deacon@arm.com> | 2019-04-10 11:51:54 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-07-03 13:16:03 +0200 |
| commit | b5800872a9c8216d0a80582a24b4bad6e7102f50 (patch) | |
| tree | 1bcfd5519b4eb9896c7eb8ac7d483a2342a7ba5c /Documentation | |
| parent | 889b96a2a9450f1169c3cb5bdb0bb31372d76800 (diff) | |
futex: Update comments and docs about return values of arch futex code
commit 427503519739e779c0db8afe876c1b33f3ac60ae upstream.
The architecture implementations of 'arch_futex_atomic_op_inuser()' and
'futex_atomic_cmpxchg_inatomic()' are permitted to return only -EFAULT,
-EAGAIN or -ENOSYS in the case of failure.
Update the comments in the asm-generic/ implementation and also a stray
reference in the robust futex documentation.
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/robust-futexes.txt | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/Documentation/robust-futexes.txt b/Documentation/robust-futexes.txt index 6c42c75103eb..6361fb01c9c1 100644 --- a/Documentation/robust-futexes.txt +++ b/Documentation/robust-futexes.txt @@ -218,5 +218,4 @@ All other architectures should build just fine too - but they won't have the new syscalls yet. Architectures need to implement the new futex_atomic_cmpxchg_inatomic() -inline function before writing up the syscalls (that function returns --ENOSYS right now). +inline function before writing up the syscalls. |