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authorJoel Stanley <joel@jms.id.au>2019-07-04 04:43:37 +0300
committerJoel Stanley <joel@jms.id.au>2019-07-04 04:43:41 +0300
commit2caf12c9ed84a39b383d0f237d1506b7e9a95bdf (patch)
tree8ba503d4cb7079f73d4b71f306c3e0c120cec53b /include/asm-generic/futex.h
parentd83aec28b086ee676056638d77ac93b06ec3d4b1 (diff)
parent8584aaf1c3262ca17d1e4a614ede9179ef462bb0 (diff)
downloadlinux-dev-5.1.tar.xz
Merge tag 'v5.1.16' into dev-5.1dev-5.1
This is the 5.1.16 stable release Signed-off-by: Joel Stanley <joel@jms.id.au>
Diffstat (limited to 'include/asm-generic/futex.h')
-rw-r--r--include/asm-generic/futex.h8
1 files changed, 6 insertions, 2 deletions
diff --git a/include/asm-generic/futex.h b/include/asm-generic/futex.h
index fcb61b4659b3..8666fe7f35d7 100644
--- a/include/asm-generic/futex.h
+++ b/include/asm-generic/futex.h
@@ -23,7 +23,9 @@
*
* Return:
* 0 - On success
- * <0 - On error
+ * -EFAULT - User access resulted in a page fault
+ * -EAGAIN - Atomic operation was unable to complete due to contention
+ * -ENOSYS - Operation not supported
*/
static inline int
arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 __user *uaddr)
@@ -85,7 +87,9 @@ out_pagefault_enable:
*
* Return:
* 0 - On success
- * <0 - On error
+ * -EFAULT - User access resulted in a page fault
+ * -EAGAIN - Atomic operation was unable to complete due to contention
+ * -ENOSYS - Function not implemented (only if !HAVE_FUTEX_CMPXCHG)
*/
static inline int
futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr,