|author||Hugh Dickins <email@example.com>||2009-09-21 17:03:37 -0700|
|committer||Linus Torvalds <firstname.lastname@example.org>||2009-09-22 07:17:41 -0700|
tmpfs: depend on shmem
CONFIG_SHMEM off gives you (ramfs masquerading as) tmpfs, even when CONFIG_TMPFS is off: that's a little anomalous, and I'd intended to make more sense of it by removing CONFIG_TMPFS altogether, always enabling its code when CONFIG_SHMEM; but so many defconfigs have CONFIG_SHMEM on CONFIG_TMPFS off that we'd better leave that as is. But there is no point in asking for CONFIG_TMPFS if CONFIG_SHMEM is off: make TMPFS depend on SHMEM, which also prevents TMPFS_POSIX_ACL shmem_acl.o being pointlessly built into the kernel when SHMEM is off. And a selfish change, to prevent the world from being rebuilt when I switch between CONFIG_SHMEM on and off: the only CONFIG_SHMEM in the header files is mm.h shmem_lock() - give that a shmem.c stub instead. Signed-off-by: Hugh Dickins <email@example.com> Acked-by: Matt Mackall <firstname.lastname@example.org> Signed-off-by: Andrew Morton <email@example.com> Signed-off-by: Linus Torvalds <firstname.lastname@example.org>
Diffstat (limited to 'fs')
1 files changed, 1 insertions, 0 deletions
diff --git a/fs/Kconfig b/fs/Kconfig
index 455aa207e67..d4bf8caad8d 100644
@@ -109,6 +109,7 @@ source "fs/sysfs/Kconfig"
bool "Virtual memory file system support (former shm fs)"
+ depends on SHMEM
Tmpfs is a file system which keeps all files in virtual memory.