Determining whether a path or file descriptor refers to a mountpoint (or more precisely a mount root) is not trivial using current tools. Add a flag to statx that indicates whether the path or fd refers to the root of a mount or not.
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| @@ -181,6 +181,7 @@ struct statx { · 180 unmodified lines | ||
| 181 | 181 | #define STATX_ATTR_NODUMP 0x00000040 /* [I] File is not to be dumped */ |
| 182 | 182 | #define STATX_ATTR_ENCRYPTED 0x00000800 /* [I] File requires key to decrypt in fs */ |
| 183 | 183 | #define STATX_ATTR_AUTOMOUNT 0x00001000 /* Dir: Automount trigger */ |
| 184 | +#define STATX_ATTR_MOUNT_ROOT 0x00002000 /* Root of a mount */ | |
| 184 | 185 | #define STATX_ATTR_VERITY 0x00100000 /* [I] Verity protected file */ |
| 185 | 186 | |
| 186 | 187 | |