On 12/30/2013 05:45 AM, Li Wang wrote: > This patch extends 'fadvise' to support directory level page cache > cleaning. The call to posix_fadvise(fd, 0, 0, POSIX_FADV_DONTNEED) > with 'fd' referring to a directory will recursively reclaim page cache > entries of files inside 'fd'. For secruity concern, those inodes > which the caller does not own appropriate permissions will not > be manipulated. Why is this necessary to do in the kernel? Why not leave it to userspace to walk the filesystem(s)? -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>