svn commit: r227310 - head/sys/fs/tmpfs
Gennady Proskurin
gprspb at mail.ru
Tue Nov 8 10:39:30 UTC 2011
TMPFS is not usable without swap, it should have better algorithms to adjust
it's size, depending on amount of memory/swap available.
# swapoff -a
# swapinfo
Device 1K-blocks Used Avail Capacity
# top
Mem: 253M Active, 282M Inact, 933M Wired, 3972K Cache, 135M Buf, 491M Free
Swap:
# df -h /tmp
Filesystem Size Used Avail Capacity Mounted on
tmpfs 436k 436k 0B 100% /tmp
no free space on /tmp
# uname -a
FreeBSD gpr.drweb.com 9.0-BETA2 FreeBSD 9.0-BETA2 #0 r225446M: Thu Sep 8 17:30:46 MSK 2011 gpr at gpr.drweb.com:/usr/obj/usr/src/freebsd-head/sys/DRW_A amd64
On Mon, Nov 07, 2011 at 04:21:50PM +0000, Marcel Moolenaar wrote:
> Author: marcel
> Date: Mon Nov 7 16:21:50 2011
> New Revision: 227310
> URL: http://svn.freebsd.org/changeset/base/227310
>
> Log:
> Don astbestos garment and remove the warning about TMPFS being experimental
> -- highly experimental even. So far the closest to a bug in TMPFS that people
> have gotten to relates to how ZFS can take away from the memory that TMPFS
> needs. One can argue that such is not a bug in TMPFS. Irrespective, even if
> there is a bug here and there in TMPFS, it's not in our own advantage to
> scare people away from using TMPFS. I for one have been using it, even with
> ZFS, very successfully.
>
> Modified:
> head/sys/fs/tmpfs/tmpfs_vfsops.c
>
> Modified: head/sys/fs/tmpfs/tmpfs_vfsops.c
> ==============================================================================
> --- head/sys/fs/tmpfs/tmpfs_vfsops.c Mon Nov 7 15:43:11 2011 (r227309)
> +++ head/sys/fs/tmpfs/tmpfs_vfsops.c Mon Nov 7 16:21:50 2011 (r227310)
> @@ -156,9 +156,6 @@ tmpfs_mount(struct mount *mp)
> return EOPNOTSUPP;
> }
>
> - printf("WARNING: TMPFS is considered to be a highly experimental "
> - "feature in FreeBSD.\n");
> -
> vn_lock(mp->mnt_vnodecovered, LK_SHARED | LK_RETRY);
> error = VOP_GETATTR(mp->mnt_vnodecovered, &va, mp->mnt_cred);
> VOP_UNLOCK(mp->mnt_vnodecovered, 0);
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