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ls -U1 now uses constant memory

This commit is contained in:
Kamil Dudka 2008-08-04 12:41:29 +00:00
parent c7a6abf853
commit 2481699c0d
2 changed files with 50 additions and 3 deletions
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38
coreutils-6.12-ls-constant_mem.patch Normal file
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@ -0,0 +1,38 @@
From: Kamil Dudka <kdudka@redhat.com>
Date: Wed, 30 Jul 2008 12:31:50 +0000 (+0200)
Subject: ls -U1 now uses constant memory
X-Git-Url: http://git.savannah.gnu.org/gitweb/?p=coreutils.git;a=commitdiff_plain;h=8d974b00fbbc2025de63e1e6d54827648fefa1c4
ls -U1 now uses constant memory
When printing one name per line and not sorting, ls now uses
constant memory per directory, no matter how many files are in
the directory.
* ls.c (print_dir): Print each file name immediately, when possible.
---
diff --git a/src/ls.c b/src/ls.c
index 4b69f7d..a661c06 100644
--- a/src/ls.c
+++ b/src/ls.c
@@ -2402,6 +2402,20 @@ print_dir (char const *name, char const *realname, bool command_line_arg)
#endif
total_blocks += gobble_file (next->d_name, type, D_INO (next),
false, name);
+
+ /* In this narrow case, print out each name right away, so
+ ls uses constant memory while processing the entries of
+ this directory. Useful when there are many (millions)
+ of entries in a directory. */
+ if (format == one_per_line && sort_type == sort_none)
+ {
+ /* We must call sort_files in spite of
+ "sort_type == sort_none" for its initialization
+ of the sorted_file vector. */
+ sort_files ();
+ print_current_files ();
+ clear_files ();
+ }
}
}
else if (errno != 0)

15
coreutils.spec
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@ -1,7 +1,7 @@
Summary: The GNU core utilities: a set of tools commonly used in shell scripts
Name: coreutils
Version: 6.12
Release: 7%{?dist}
Release: 8%{?dist}
License: GPLv3+
Group: System Environment/Base
Url: http://www.gnu.org/software/coreutils/
@ -28,6 +28,7 @@ Patch101: coreutils-6.10-manpages.patch
#Patch102: coreutils-6.10-longoptions.patch
Patch103: coreutils-6.11-sparc-shafix.patch
Patch104: coreutils-6.12-utimenstouchcp.patch
Patch105: coreutils-6.12-dd-fullblock.patch
# sh-utils
Patch703: sh-utils-2.0.11-dateman.patch
@ -54,8 +55,10 @@ Patch916: coreutils-getfacl-exit-code.patch
Patch950: coreutils-selinux.patch
Patch951: coreutils-selinuxmanpages.patch
Patch952: coreutils-6.11-matchpathconinstall.patch
Patch953: coreutils-6.12-dd-fullblock.patch
# ls enhancements (must be applied after SELINUX patches)
Patch954: coreutils-6.12-ls-libcap.patch
Patch955: coreutils-6.12-ls-constant_mem.patch
BuildRequires: libselinux-devel >= 1.25.6-1
BuildRequires: libacl-devel
@ -115,6 +118,7 @@ cd %name-%version
#%patch102 -p1 -b .longopt
%patch103 -p1 -b .sparc
%patch104 -p1 -b .utimensat
%patch105 -p1 -b .dd-fullblock
# sh-utils
%patch703 -p1 -b .dateman
@ -137,8 +141,10 @@ cd %name-%version
#SELinux
%patch950 -p1 -b .selinux
%patch951 -p1 -b .selinuxman
%patch953 -p1 -b .dd-fullblock
# ls enhancements (must be applied after SELINUX patches)
%patch954 -p1 -b .ls-libcap
%patch955 -p1 -b .ls-constant_mem
chmod a+x tests/misc/sort-mb-tests
@ -323,6 +329,9 @@ fi
/sbin/runuser
%changelog
* Mon Aug 04 2008 Kamil Dudka <kdudka@redhat.com> - 6.12-8
- ls -U1 now uses constant memory
* Wed Jul 24 2008 Kamil Dudka <kdudka@redhat.com> - 6.12-7
- dd: iflag=fullblock now read full blocks if possible
(#431997, #449263)