diff options
| author | Wang Nan <[email protected]> | 2016-09-06 04:58:28 +0000 |
|---|---|---|
| committer | Arnaldo Carvalho de Melo <[email protected]> | 2016-09-08 12:34:43 -0300 |
| commit | 5e7be3e1f9d71ed03fac27df25e143815be662d2 (patch) | |
| tree | 8a6292fead423d86f694a18bc2cde680b3d305aa /tools/lib/api/fs/fs.c | |
| parent | 0ac3348e502423cf2fe86beca83b8835a2e6d289 (diff) | |
tools lib api fs: Add hugetlbfs filesystem detector
Detect hugetlbfs. hugetlbfs__mountpoint() will be used during recording
to help identifying hugetlb mmaps: which should be recognized as anon
mapping.
Signed-off-by: Wang Nan <[email protected]>
Reviewed-by: Nilay Vaish <[email protected]>
Cc: He Kuang <[email protected]>
Cc: Hou Pengyang <[email protected]>
Cc: Zefan Li <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
Diffstat (limited to 'tools/lib/api/fs/fs.c')
| -rw-r--r-- | tools/lib/api/fs/fs.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/tools/lib/api/fs/fs.c b/tools/lib/api/fs/fs.c index ba7094b945ff..f99f49e4a31e 100644 --- a/tools/lib/api/fs/fs.c +++ b/tools/lib/api/fs/fs.c @@ -34,6 +34,10 @@ #define TRACEFS_MAGIC 0x74726163 #endif +#ifndef HUGETLBFS_MAGIC +#define HUGETLBFS_MAGIC 0x958458f6 +#endif + static const char * const sysfs__fs_known_mountpoints[] = { "/sys", 0, @@ -67,6 +71,10 @@ static const char * const tracefs__known_mountpoints[] = { 0, }; +static const char * const hugetlbfs__known_mountpoints[] = { + 0, +}; + struct fs { const char *name; const char * const *mounts; @@ -80,6 +88,7 @@ enum { FS__PROCFS = 1, FS__DEBUGFS = 2, FS__TRACEFS = 3, + FS__HUGETLBFS = 4, }; #ifndef TRACEFS_MAGIC @@ -107,6 +116,11 @@ static struct fs fs__entries[] = { .mounts = tracefs__known_mountpoints, .magic = TRACEFS_MAGIC, }, + [FS__HUGETLBFS] = { + .name = "hugetlbfs", + .mounts = hugetlbfs__known_mountpoints, + .magic = HUGETLBFS_MAGIC, + }, }; static bool fs__read_mounts(struct fs *fs) @@ -265,6 +279,7 @@ FS(sysfs, FS__SYSFS); FS(procfs, FS__PROCFS); FS(debugfs, FS__DEBUGFS); FS(tracefs, FS__TRACEFS); +FS(hugetlbfs, FS__HUGETLBFS); int filename__read_int(const char *filename, int *value) { |