Author: pjd
Date: Wed Mar 16 08:58:09 2011
New Revision: 219696
URL: http://svn.freebsd.org/changeset/base/219696
Log:
From fts.c comment:
The "FTS_NOSTAT" option can avoid a lot of calls to stat(2) if it knows that a
directory could not possibly have subdirectories. This is decided by looking
at
the link count: a subdirectory would increment its parent's link count by
virtue of its own ".." entry. This assumption only holds for UFS-like
filesystems that implement links and directories this way, so we must punt for
others.
It looks like ZFS is a UFS-like file system, as the above also holds for ZFS.
Add ZFS to the list of file systems that allow for such optimization.
MFC after: 1 month
Modified:
head/lib/libc/gen/fts-compat.c
head/lib/libc/gen/fts.c
Modified: head/lib/libc/gen/fts-compat.c
==============================================================================
--- head/lib/libc/gen/fts-compat.c Wed Mar 16 08:56:22 2011
(r219695)
+++ head/lib/libc/gen/fts-compat.c Wed Mar 16 08:58:09 2011
(r219696)
@@ -110,6 +110,7 @@ struct _fts_private {
static const char *ufslike_filesystems[] = {
"ufs",
+ "zfs",
"nfs",
"nfs4",
"ext2fs",
Modified: head/lib/libc/gen/fts.c
==============================================================================
--- head/lib/libc/gen/fts.c Wed Mar 16 08:56:22 2011 (r219695)
+++ head/lib/libc/gen/fts.c Wed Mar 16 08:58:09 2011 (r219696)
@@ -100,6 +100,7 @@ struct _fts_private {
static const char *ufslike_filesystems[] = {
"ufs",
+ "zfs",
"nfs",
"nfs4",
"ext2fs",
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