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author | Hugh Dickins <hugh.dickins@tiscali.co.uk> | 2009-09-22 00:03:37 (GMT) |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-09-22 14:17:41 (GMT) |
commit | 3f96b79ad96263cc0ece7bb340cddf9b2ddfb1b3 (patch) | |
tree | 0da9828c16543164f1b055fd927ea3e222ca05e5 /fs | |
parent | cdf7b3418ad5a8783efe8f9124023d9b869fec0f (diff) | |
download | linux-3f96b79ad96263cc0ece7bb340cddf9b2ddfb1b3.tar.xz |
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 <hugh.dickins@tiscali.co.uk>
Acked-by: Matt Mackall <mpm@selenic.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'fs')
-rw-r--r-- | fs/Kconfig | 1 |
1 files changed, 1 insertions, 0 deletions
@@ -109,6 +109,7 @@ source "fs/sysfs/Kconfig" config TMPFS bool "Virtual memory file system support (former shm fs)" + depends on SHMEM help Tmpfs is a file system which keeps all files in virtual memory. |