findutils/findutils-4.6.0-leaf-opt.patch

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2019-08-30 07:50:49 +00:00
From 547e7145f335dc07144f35eaacc520475068852e Mon Sep 17 00:00:00 2001
From: Kamil Dudka <kdudka@redhat.com>
Date: Fri, 30 Aug 2019 10:22:22 +0200
Subject: [PATCH 1/3] Revert "fts: cleanup after FTS_NOATIME removal"
This reverts commit dce8759f0f0236a860a3e68b63c5e99cc6f168f9.
---
gl/lib/fts_.h | 10 ++++++----
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/gl/lib/fts_.h b/gl/lib/fts_.h
index fb5558f..0122262 100644
--- a/gl/lib/fts_.h
+++ b/gl/lib/fts_.h
@@ -149,14 +149,16 @@ typedef struct {
dirent.d_type data. */
# define FTS_DEFER_STAT 0x0400
+/* 0x0800 unused, was non-working FTS_NOATIME */
+
/* Use this flag to disable stripping of trailing slashes
from input path names during fts_open initialization. */
-# define FTS_VERBATIM 0x0800
+# define FTS_VERBATIM 0x1000
-# define FTS_OPTIONMASK 0x0fff /* valid user option mask */
+# define FTS_OPTIONMASK 0x1fff /* valid user option mask */
-# define FTS_NAMEONLY 0x1000 /* (private) child names only */
-# define FTS_STOP 0x2000 /* (private) unrecoverable error */
+# define FTS_NAMEONLY 0x2000 /* (private) child names only */
+# define FTS_STOP 0x4000 /* (private) unrecoverable error */
int fts_options; /* fts_open options, global flags */
/* Map a directory's device number to a boolean. The boolean is
--
2.20.1
From 1328926a705fdb4728c1f255dd368de928736d39 Mon Sep 17 00:00:00 2001
From: Kamil Dudka <kdudka@redhat.com>
Date: Fri, 25 Sep 2015 16:09:39 +0200
2019-08-30 07:50:49 +00:00
Subject: [PATCH 2/3] fts: introduce the FTS_NOLEAF flag
The flag is needed to implement the -noleaf option of find.
* lib/fts.c (link_count_optimize_ok): Implement the FTS_NOLEAF flag.
* lib/fts_.h (FTS_NOLEAF): New macro, shifted conflicting constants.
---
gl/lib/fts.c | 4 ++++
gl/lib/fts_.h | 12 +++++++++---
2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/gl/lib/fts.c b/gl/lib/fts.c
index d2d404f..808466f 100644
--- a/gl/lib/fts.c
+++ b/gl/lib/fts.c
2019-08-30 07:50:49 +00:00
@@ -713,6 +713,10 @@ filesystem_type (FTSENT const *p, int fd)
struct dev_type *ent;
struct statfs fs_buf;
+ if (ISSET(FTS_NOLEAF))
+ /* leaf optimization explicitly disabled by the FTS_NOLEAF flag */
+ return 0;
+
/* If we're not in CWDFD mode, don't bother with this optimization,
since the caller is not serious about performance. */
if (!ISSET (FTS_CWDFD))
diff --git a/gl/lib/fts_.h b/gl/lib/fts_.h
index 63d4b74..f1d519b 100644
--- a/gl/lib/fts_.h
+++ b/gl/lib/fts_.h
@@ -155,10 +155,16 @@ typedef struct {
from input path names during fts_open initialization. */
# define FTS_VERBATIM 0x1000
-# define FTS_OPTIONMASK 0x1fff /* valid user option mask */
+ /* Disable leaf optimization (which eliminates stat() calls during traversal,
+ based on the count of nested directories stored in stat.st_nlink of each
+ directory). Note that the optimization is by default enabled only for
+ selected file systems, and only if the FTS_CWDFD flag is set. */
+# define FTS_NOLEAF 0x2000
-# define FTS_NAMEONLY 0x2000 /* (private) child names only */
-# define FTS_STOP 0x4000 /* (private) unrecoverable error */
+# define FTS_OPTIONMASK 0x3fff /* valid user option mask */
+
+# define FTS_NAMEONLY 0x4000 /* (private) child names only */
+# define FTS_STOP 0x8000 /* (private) unrecoverable error */
int fts_options; /* fts_open options, global flags */
/* Map a directory's device number to a boolean. The boolean is
--
2.5.0
From c186934e6e37ddadf7511abb9b1045192757618e Mon Sep 17 00:00:00 2001
From: Kamil Dudka <kdudka@redhat.com>
Date: Fri, 25 Sep 2015 19:13:15 +0200
2019-08-30 07:50:49 +00:00
Subject: [PATCH 3/3] ftsfind: propagate the -noleaf option to FTS
* find/ftsfind.c (find): Propagate the -noleaf option to FTS.
---
find/ftsfind.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/find/ftsfind.c b/find/ftsfind.c
index 5159470..e34b672 100644
--- a/find/ftsfind.c
+++ b/find/ftsfind.c
2019-08-30 07:50:49 +00:00
@@ -553,6 +553,9 @@ find (char *arg)
if (options.stay_on_filesystem)
ftsoptions |= FTS_XDEV;
+ if (options.no_leaf_check)
+ ftsoptions |= FTS_NOLEAF;
+
p = fts_open (arglist, ftsoptions, NULL);
if (NULL == p)
{
--
2.5.0