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| author | Abhishek Bapat <abhishekbapat@google.com> | 2026-07-08 18:01:24 +0000 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-08-24 18:43:12 -0700 |
| commit | 5732a4e4c18acac152768df9ce48e057232edbf4 (patch) | |
| tree | 101ea7fe2f2f3252eb23098152c0e3b87c5ce36f /include/uapi | |
| parent | 1d581ab2348cdbb6d4d0a467382926b68e374ec9 (diff) | |
| download | linux-5732a4e4c18acac152768df9ce48e057232edbf4.tar.gz linux-5732a4e4c18acac152768df9ce48e057232edbf4.zip | |
alloc_tag: add ioctl filters to /proc/allocinfo
Extend the capability of the IOCTL mechanism to filter allocations based
on tag's module name, function name, file name and line number.
Link: https://lore.kernel.org/6a6100c0c58cb2911f39126b9fe177a8c17db16f.1783532853.git.abhishekbapat@google.com
Signed-off-by: Abhishek Bapat <abhishekbapat@google.com>
Acked-by: Hao Ge <hao.ge@linux.dev>
Acked-by: Suren Baghdasaryan <surenb@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Sourav Panda <souravpanda@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/uapi')
| -rw-r--r-- | include/uapi/linux/alloc_tag.h | 26 |
1 files changed, 25 insertions, 1 deletions
diff --git a/include/uapi/linux/alloc_tag.h b/include/uapi/linux/alloc_tag.h index ee6a023cbaf4..13e9b5916bf5 100644 --- a/include/uapi/linux/alloc_tag.h +++ b/include/uapi/linux/alloc_tag.h @@ -45,8 +45,32 @@ struct allocinfo_tag_data { struct allocinfo_counter counter; }; +enum { + ALLOCINFO_FILTER_MODNAME, + ALLOCINFO_FILTER_FUNCTION, + ALLOCINFO_FILTER_FILENAME, + ALLOCINFO_FILTER_LINENO, + __ALLOCINFO_FILTER_LAST = ALLOCINFO_FILTER_LINENO +}; + +#define ALLOCINFO_FILTER_MASK_MODNAME (1 << ALLOCINFO_FILTER_MODNAME) +#define ALLOCINFO_FILTER_MASK_FUNCTION (1 << ALLOCINFO_FILTER_FUNCTION) +#define ALLOCINFO_FILTER_MASK_FILENAME (1 << ALLOCINFO_FILTER_FILENAME) +#define ALLOCINFO_FILTER_MASK_LINENO (1 << ALLOCINFO_FILTER_LINENO) + +#define ALLOCINFO_FILTER_MASKS \ + ((1 << (__ALLOCINFO_FILTER_LAST + 1)) - 1) + +struct allocinfo_filter { + __u64 mask; /* bitmask of the filter fields used */ + struct allocinfo_tag fields; +}; + struct allocinfo_get_at { - __u64 pos; /* input */ + /* inputs */ + __u64 pos; + struct allocinfo_filter filter; + /* output */ struct allocinfo_tag_data data; }; |