diff options
| author | John Stultz <[email protected]> | 2022-12-21 05:18:55 +0000 |
|---|---|---|
| committer | Kees Cook <[email protected]> | 2022-12-23 10:33:27 -0800 |
| commit | 2f4fec5943407318b9523f01ce1f5d668c028332 (patch) | |
| tree | b1e930a0b22a15b4d26409ba1923c90e55c90a7d | |
| parent | 76d62f24db07f22ccf9bc18ca793c27d4ebef721 (diff) | |
pstore: Make sure CONFIG_PSTORE_PMSG selects CONFIG_RT_MUTEXES
In commit 76d62f24db07 ("pstore: Switch pmsg_lock to an rt_mutex
to avoid priority inversion") I changed a lock to an rt_mutex.
However, its possible that CONFIG_RT_MUTEXES is not enabled,
which then results in a build failure, as the 0day bot detected:
https://lore.kernel.org/linux-mm/[email protected]/
Thus this patch changes CONFIG_PSTORE_PMSG to select
CONFIG_RT_MUTEXES, which ensures the build will not fail.
Cc: Wei Wang <[email protected]>
Cc: Midas Chien<[email protected]>
Cc: Connor O'Brien <[email protected]>
Cc: Kees Cook <[email protected]>
Cc: Anton Vorontsov <[email protected]>
Cc: Colin Cross <[email protected]>
Cc: Tony Luck <[email protected]>
Cc: kernel test robot <[email protected]>
Cc: [email protected]
Fixes: 76d62f24db07 ("pstore: Switch pmsg_lock to an rt_mutex to avoid priority inversion")
Reported-by: kernel test robot <[email protected]>
Signed-off-by: John Stultz <[email protected]>
Signed-off-by: Kees Cook <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
| -rw-r--r-- | fs/pstore/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/pstore/Kconfig b/fs/pstore/Kconfig index 8adabde685f1..c49d554cc9ae 100644 --- a/fs/pstore/Kconfig +++ b/fs/pstore/Kconfig @@ -126,6 +126,7 @@ config PSTORE_CONSOLE config PSTORE_PMSG bool "Log user space messages" depends on PSTORE + select RT_MUTEXES help When the option is enabled, pstore will export a character interface /dev/pmsg0 to log user space messages. On reboot |