[lttng-dev] [PATCH lttng-modules] Android: Import VFS namespace for android common kernel

[lttng-dev] [PATCH lttng-modules] Android: Import VFS namespace for android common kernel

[Lei wang via lttng-dev]

Android GKI kernel add limitation on fs interface usage.
Need to import VFS namespace explicitly to make it workable
for lttng-modules.

Signed-off-by: Lei wang <quic_leiwan@quicinc.com>
---
 src/wrapper/kallsyms.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/wrapper/kallsyms.c b/src/wrapper/kallsyms.c
index 97897c4..9398c83 100644
--- a/src/wrapper/kallsyms.c
+++ b/src/wrapper/kallsyms.c
@@ -113,3 +113,7 @@ unsigned long wrapper_kallsyms_lookup_name(const char *name)
 EXPORT_SYMBOL_GPL(wrapper_kallsyms_lookup_name);
 
 #endif
+
+#ifdef CONFIG_ANDROID
+MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
+#endif
-- 
2.34.1

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Re: [lttng-dev] [PATCH lttng-modules] Android: Import VFS namespace for android common kernel

[Mathieu Desnoyers via lttng-dev]

On 2023-12-18 05:16, Lei wang via lttng-dev wrote:
> Android GKI kernel add limitation on fs interface usage.
> Need to import VFS namespace explicitly to make it workable
> for lttng-modules.
> 

Merged into lttng-modules master and 2.13 branches, thanks!

Mathieu

> Signed-off-by: Lei wang <quic_leiwan@quicinc.com>
> ---
>   src/wrapper/kallsyms.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/src/wrapper/kallsyms.c b/src/wrapper/kallsyms.c
> index 97897c4..9398c83 100644
> --- a/src/wrapper/kallsyms.c
> +++ b/src/wrapper/kallsyms.c
> @@ -113,3 +113,7 @@ unsigned long wrapper_kallsyms_lookup_name(const char *name)
>   EXPORT_SYMBOL_GPL(wrapper_kallsyms_lookup_name);
>   
>   #endif
> +
> +#ifdef CONFIG_ANDROID
> +MODULE_IMPORT_NS(VFS_internal_I_am_really_a_filesystem_and_am_NOT_a_driver);
> +#endif

-- 
Mathieu Desnoyers
EfficiOS Inc.
https://www.efficios.com

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