diff options
| -rw-r--r-- | meta/recipes-core/coreutils/coreutils/0001-fts-remove-NOSTAT_LEAF_OPTIMIZATION.patch | 167 | ||||
| -rw-r--r-- | meta/recipes-core/coreutils/coreutils_8.32.bb | 1 |
2 files changed, 168 insertions, 0 deletions
diff --git a/meta/recipes-core/coreutils/coreutils/0001-fts-remove-NOSTAT_LEAF_OPTIMIZATION.patch b/meta/recipes-core/coreutils/coreutils/0001-fts-remove-NOSTAT_LEAF_OPTIMIZATION.patch new file mode 100644 index 0000000000..06b6307dab --- /dev/null +++ b/meta/recipes-core/coreutils/coreutils/0001-fts-remove-NOSTAT_LEAF_OPTIMIZATION.patch @@ -0,0 +1,167 @@ +From 3a48610860a9a75692d2cbedde69ac15269d540a Mon Sep 17 00:00:00 2001 +Message-Id: <3a48610860a9a75692d2cbedde69ac15269d540a.1624302273.git.wallinux@gmail.com> +From: Paul Eggert <eggert@cs.ucla.edu> +Date: Wed, 15 Apr 2020 20:50:32 -0700 +Subject: [PATCH] fts: remove NOSTAT_LEAF_OPTIMIZATION +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It caused ‘find’ and ‘du’ to dump core, and it was useful +only for obsolescent Linux filesystems anyway. Problem reported in: +https://lists.gnu.org/r/bug-gnulib/2020-04/msg00068.html +Quite possibly there is still a serious underlying fts bug with +tight-loop-check and mutating file systems, but if so this patch +should cause the bug to be triggered less often. +* lib/fts.c (enum leaf_optimization): Remove +NOSTAT_LEAF_OPTIMIZATION, as it’s problematic. +(S_MAGIC_REISERFS, S_MAGIC_XFS): Remove; no longer needed. +(leaf_optimization): Remove special cases for ReiserFS and XFS. +(fts_read): Remove NOSTAT_LEAF_OPTIMIZATION code. +* lib/fts_.h (struct _ftsent.fts_n_dirs_remaining): +Remove. All uses removed. + +Upstream-Status: Backport [upstream gnulib commit: +47bf2cf3184027c1eb9c1dfeea5c5b8b2d69710d] + +Signed-off-by: Anders Wallin <wallinux@gmail.com> +--- + lib/fts.c | 56 ++++++++---------------------------------------------- + lib/fts_.h | 5 ----- + 2 files changed, 8 insertions(+), 53 deletions(-) + +diff --git a/lib/fts.c b/lib/fts.c +index d3a0472..ade8c33 100644 +--- a/lib/fts.c ++++ b/lib/fts.c +@@ -445,7 +445,6 @@ fts_open (char * const *argv, + if ((parent = fts_alloc(sp, "", 0)) == NULL) + goto mem2; + parent->fts_level = FTS_ROOTPARENTLEVEL; +- parent->fts_n_dirs_remaining = -1; + } + + /* The classic fts implementation would call fts_stat with +@@ -634,9 +633,8 @@ fts_close (FTS *sp) + } + + /* Minimum link count of a traditional Unix directory. When leaf +- optimization is OK and MIN_DIR_NLINK <= st_nlink, then st_nlink is +- an upper bound on the number of subdirectories (counting "." and +- ".."). */ ++ optimization is OK and a directory's st_nlink == MIN_DIR_NLINK, ++ then the directory has no subdirectories. */ + enum { MIN_DIR_NLINK = 2 }; + + /* Whether leaf optimization is OK for a directory. */ +@@ -645,12 +643,8 @@ enum leaf_optimization + /* st_nlink is not reliable for this directory's subdirectories. */ + NO_LEAF_OPTIMIZATION, + +- /* Leaf optimization is OK, but is not useful for avoiding stat calls. */ +- OK_LEAF_OPTIMIZATION, +- +- /* Leaf optimization is not only OK: it is useful for avoiding +- stat calls, because dirent.d_type does not work. */ +- NOSTAT_LEAF_OPTIMIZATION ++ /* st_nlink == 2 means the directory lacks subdirectories. */ ++ OK_LEAF_OPTIMIZATION + }; + + #if (defined __linux__ || defined __ANDROID__) \ +@@ -663,9 +657,7 @@ enum leaf_optimization + # define S_MAGIC_CIFS 0xFF534D42 + # define S_MAGIC_NFS 0x6969 + # define S_MAGIC_PROC 0x9FA0 +-# define S_MAGIC_REISERFS 0x52654973 + # define S_MAGIC_TMPFS 0x1021994 +-# define S_MAGIC_XFS 0x58465342 + + # ifdef HAVE___FSWORD_T + typedef __fsword_t fsword; +@@ -782,23 +774,15 @@ dirent_inode_sort_may_be_useful (FTSENT const *p, int dir_fd) + } + + /* Given an FTS entry P for a directory with descriptor DIR_FD, +- return true if it is both useful and valid to apply leaf optimization. +- The optimization is useful only for file systems that lack usable +- dirent.d_type info. The optimization is valid if an st_nlink value +- of at least MIN_DIR_NLINK is an upper bound on the number of +- subdirectories of D, counting "." and ".." as subdirectories. ++ return whether it is valid to apply leaf optimization. ++ The optimization is valid if a directory's st_nlink value equal ++ to MIN_DIR_NLINK means the directory has no subdirectories. + DIR_FD is negative if unavailable. */ + static enum leaf_optimization + leaf_optimization (FTSENT const *p, int dir_fd) + { + switch (filesystem_type (p, dir_fd)) + { +- /* List here the file system types that may lack usable dirent.d_type +- info, yet for which the optimization does apply. */ +- case S_MAGIC_REISERFS: +- case S_MAGIC_XFS: /* XFS lacked it until 2013-08-22 commit. */ +- return NOSTAT_LEAF_OPTIMIZATION; +- + case 0: + /* Leaf optimization is unsafe if the file system type is unknown. */ + FALLTHROUGH; +@@ -1023,26 +1007,7 @@ check_for_dir: + if (p->fts_info == FTS_NSOK) + { + if (p->fts_statp->st_size == FTS_STAT_REQUIRED) +- { +- FTSENT *parent = p->fts_parent; +- if (parent->fts_n_dirs_remaining == 0 +- && ISSET(FTS_NOSTAT) +- && ISSET(FTS_PHYSICAL) +- && (leaf_optimization (parent, sp->fts_cwd_fd) +- == NOSTAT_LEAF_OPTIMIZATION)) +- { +- /* nothing more needed */ +- } +- else +- { +- p->fts_info = fts_stat(sp, p, false); +- if (S_ISDIR(p->fts_statp->st_mode) +- && p->fts_level != FTS_ROOTLEVEL +- && 0 < parent->fts_n_dirs_remaining +- && parent->fts_n_dirs_remaining != (nlink_t) -1) +- parent->fts_n_dirs_remaining--; +- } +- } ++ p->fts_info = fts_stat(sp, p, false); + else + fts_assert (p->fts_statp->st_size == FTS_NO_STAT_REQUIRED); + } +@@ -1826,11 +1791,6 @@ err: memset(sbp, 0, sizeof(struct stat)); + } + + if (S_ISDIR(sbp->st_mode)) { +- p->fts_n_dirs_remaining +- = ((sbp->st_nlink < MIN_DIR_NLINK +- || p->fts_level <= FTS_ROOTLEVEL) +- ? -1 +- : sbp->st_nlink - (ISSET (FTS_SEEDOT) ? 0 : MIN_DIR_NLINK)); + if (ISDOT(p->fts_name)) { + /* Command-line "." and ".." are real directories. */ + return (p->fts_level == FTS_ROOTLEVEL ? FTS_D : FTS_DOT); +diff --git a/lib/fts_.h b/lib/fts_.h +index 6c7d0ce..15c248c 100644 +--- a/lib/fts_.h ++++ b/lib/fts_.h +@@ -219,11 +219,6 @@ typedef struct _ftsent { + + size_t fts_namelen; /* strlen(fts_name) */ + +- /* If not (nlink_t) -1, an upper bound on the number of +- remaining subdirectories of interest. If this becomes +- zero, some work can be avoided. */ +- nlink_t fts_n_dirs_remaining; +- + # define FTS_D 1 /* preorder directory */ + # define FTS_DC 2 /* directory that causes cycles */ + # define FTS_DEFAULT 3 /* none of the above */ +-- +2.32.0 + diff --git a/meta/recipes-core/coreutils/coreutils_8.32.bb b/meta/recipes-core/coreutils/coreutils_8.32.bb index f3fe31fd3b..dd271d4968 100644 --- a/meta/recipes-core/coreutils/coreutils_8.32.bb +++ b/meta/recipes-core/coreutils/coreutils_8.32.bb @@ -21,6 +21,7 @@ SRC_URI = "${GNU_MIRROR}/coreutils/${BP}.tar.xz \ file://0001-local.mk-fix-cross-compiling-problem.patch \ file://run-ptest \ file://0001-ls-restore-8.31-behavior-on-removed-directories.patch \ + file://0001-fts-remove-NOSTAT_LEAF_OPTIMIZATION.patch \ " SRC_URI[md5sum] = "022042695b7d5bcf1a93559a9735e668" |