diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-05 08:03:23 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-09-05 08:03:23 +0200 |
| commit | a956f91247da3fe71e4d5f7da1f6dd8bae7c3c21 (patch) | |
| tree | dcbfa79369938f1349af5b39a68dee698861a815 /Documentation/atomic_bitops.txt | |
| parent | USB: hcd-pci: Drop the unused id parameter from usb_hcd_pci_probe() (diff) | |
| parent | Linux 6.0-rc4 (diff) | |
| download | linux-a956f91247da3fe71e4d5f7da1f6dd8bae7c3c21.tar.xz linux-a956f91247da3fe71e4d5f7da1f6dd8bae7c3c21.zip | |
Merge 6.0-rc4 into usb-next
We need the USB fixes in here and this resolves the merge issue in:
drivers/usb/dwc3/gadget.c
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'Documentation/atomic_bitops.txt')
| -rw-r--r-- | Documentation/atomic_bitops.txt | 10 |
1 files changed, 4 insertions, 6 deletions
diff --git a/Documentation/atomic_bitops.txt b/Documentation/atomic_bitops.txt index 093cdaefdb37..edea4656c5c0 100644 --- a/Documentation/atomic_bitops.txt +++ b/Documentation/atomic_bitops.txt @@ -58,13 +58,11 @@ Like with atomic_t, the rule of thumb is: - RMW operations that have a return value are fully ordered. - - RMW operations that are conditional are unordered on FAILURE, - otherwise the above rules apply. In the case of test_and_{}_bit() operations, - if the bit in memory is unchanged by the operation then it is deemed to have - failed. + - RMW operations that are conditional are fully ordered. -Except for a successful test_and_set_bit_lock() which has ACQUIRE semantics and -clear_bit_unlock() which has RELEASE semantics. +Except for a successful test_and_set_bit_lock() which has ACQUIRE semantics, +clear_bit_unlock() which has RELEASE semantics and test_bit_acquire which has +ACQUIRE semantics. Since a platform only has a single means of achieving atomic operations the same barriers as for atomic_t are used, see atomic_t.txt. |