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| author | Will Deacon <will.deacon@arm.com> | 2019-04-10 12:51:54 +0200 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2019-04-26 14:57:55 +0200 |
| commit | 427503519739e779c0db8afe876c1b33f3ac60ae (patch) | |
| tree | adb1c420287cb4a6fe1e84b098ef51eb61d964a0 /Documentation/robust-futexes.txt | |
| parent | arm64: futex: Avoid copying out uninitialised stack in failed cmpxchg() (diff) | |
| download | linux-427503519739e779c0db8afe876c1b33f3ac60ae.tar.xz linux-427503519739e779c0db8afe876c1b33f3ac60ae.zip | |
futex: Update comments and docs about return values of arch futex code
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>
Diffstat (limited to 'Documentation/robust-futexes.txt')
| -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. |