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| author | pjd <pjd@FreeBSD.org> | 2011-03-16 08:58:09 +0000 |
|---|---|---|
| committer | pjd <pjd@FreeBSD.org> | 2011-03-16 08:58:09 +0000 |
| commit | 18c497939abd17b5b1a7c20b41c1e778e9894668 (patch) | |
| tree | be90d9abb16c370bb5980934715811bb1edcb310 | |
| parent | 67b7c6cf191c0e44cee8b101db10858edf82bf7b (diff) | |
| download | FreeBSD-src-18c497939abd17b5b1a7c20b41c1e778e9894668.zip FreeBSD-src-18c497939abd17b5b1a7c20b41c1e778e9894668.tar.gz | |
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
| -rw-r--r-- | lib/libc/gen/fts-compat.c | 1 | ||||
| -rw-r--r-- | lib/libc/gen/fts.c | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/lib/libc/gen/fts-compat.c b/lib/libc/gen/fts-compat.c index 3afb87d..a6ddde4 100644 --- a/lib/libc/gen/fts-compat.c +++ b/lib/libc/gen/fts-compat.c @@ -110,6 +110,7 @@ struct _fts_private { static const char *ufslike_filesystems[] = { "ufs", + "zfs", "nfs", "nfs4", "ext2fs", diff --git a/lib/libc/gen/fts.c b/lib/libc/gen/fts.c index 1c547a1..f727003 100644 --- a/lib/libc/gen/fts.c +++ b/lib/libc/gen/fts.c @@ -100,6 +100,7 @@ struct _fts_private { static const char *ufslike_filesystems[] = { "ufs", + "zfs", "nfs", "nfs4", "ext2fs", |
