2.28.1: upgrade
This commit is contained in:
Karel Zak
parent
77818367d0
commit
02e8b22b8e
|
|
@ -47,3 +47,4 @@
|
|||
/util-linux-2.27.1.tar.xz
|
||||
/util-linux-2.28-rc1.tar.xz
|
||||
/util-linux-2.28-rc2.tar.xz
|
||||
/util-linux-2.28.tar.xz
|
||||
|
|
|
|||
|
|
@ -1,160 +0,0 @@
|
|||
From e04f386084c72df17e1d1e7d7d3e1e420a198442 Mon Sep 17 00:00:00 2001
|
||||
From: Karel Zak <kzak@redhat.com>
|
||||
Date: Wed, 30 Mar 2016 14:53:33 +0200
|
||||
Subject: [PATCH] libblkid: revert mmap usage
|
||||
|
||||
The implementation has not been ready for I/O errors and it seems that
|
||||
there is no elegant way how to resolve this issue. Linux returns
|
||||
SIGBUS on mmap errors and play with signals (or longjumps) in shared
|
||||
library is really bad idea.
|
||||
|
||||
It also seems that mmaped devices have some unexpected side-effects
|
||||
with page-cache where for example dd returns old data for already
|
||||
modified device etc.
|
||||
|
||||
Signed-off-by: Karel Zak <kzak@redhat.com>
|
||||
---
|
||||
libblkid/src/blkidP.h | 1 -
|
||||
libblkid/src/probe.c | 90 ++-------------------------------------------------
|
||||
2 files changed, 2 insertions(+), 89 deletions(-)
|
||||
|
||||
diff --git a/libblkid/src/blkidP.h b/libblkid/src/blkidP.h
|
||||
index 916deb0..e9a267e 100644
|
||||
--- a/libblkid/src/blkidP.h
|
||||
+++ b/libblkid/src/blkidP.h
|
||||
@@ -180,7 +180,6 @@ struct blkid_struct_probe
|
||||
int fd; /* device file descriptor */
|
||||
uint64_t off; /* begin of data on the device */
|
||||
uint64_t size; /* end of data on the device */
|
||||
- size_t mmap_granularity; /* minimal size of mmaped buffer (PAGE_SIZE) */
|
||||
|
||||
dev_t devno; /* device number (st.st_rdev) */
|
||||
dev_t disk_devno; /* devno of the whole-disk or 0 */
|
||||
diff --git a/libblkid/src/probe.c b/libblkid/src/probe.c
|
||||
index 9c48462..34d97b8 100644
|
||||
--- a/libblkid/src/probe.c
|
||||
+++ b/libblkid/src/probe.c
|
||||
@@ -104,7 +104,6 @@
|
||||
#include <stdint.h>
|
||||
#include <stdarg.h>
|
||||
#include <limits.h>
|
||||
-#include <sys/mman.h>
|
||||
|
||||
#ifdef HAVE_LIBUUID
|
||||
# include <uuid.h>
|
||||
@@ -581,85 +580,6 @@ int __blkid_probe_filter_types(blkid_probe pr, int chain, int flag, char *names[
|
||||
return 0;
|
||||
}
|
||||
|
||||
-/* align to mmap granularity */
|
||||
-#define PROBE_ALIGN_OFF(p, o) ((o) & ~((p)->mmap_granularity - 1ULL))
|
||||
-/* default buffer sizes */
|
||||
-#define PROBE_MMAP_BEGINSIZ (1024ULL * 1024ULL * 2ULL) /* begin of the device */
|
||||
-#define PROBE_MMAP_ENDSIZ (1024ULL * 1024ULL * 2ULL) /* end of the device */
|
||||
-#define PROBE_MMAP_MIDSIZ (1024ULL * 1024ULL) /* middle of the device */
|
||||
-
|
||||
-#define probe_is_mmap_wanted(p) (!S_ISCHR((p)->mode))
|
||||
-
|
||||
-static struct blkid_bufinfo *mmap_buffer(blkid_probe pr, uint64_t real_off, uint64_t len)
|
||||
-{
|
||||
- uint64_t map_len;
|
||||
- uint64_t map_off = 0;
|
||||
- struct blkid_bufinfo *bf = NULL;
|
||||
-
|
||||
- /*
|
||||
- * libblkid heavily reads begin and end of the device, so it seems
|
||||
- * better to mmap ~2MiB from the begin and end of the device to reduces
|
||||
- * number of syscalls and necessary buffers. For random accees
|
||||
- * somewhere in the middle of the device we use 1MiB buffers.
|
||||
- */
|
||||
- if (!pr->mmap_granularity)
|
||||
- pr->mmap_granularity = getpagesize();
|
||||
-
|
||||
- /* begin of the device */
|
||||
- if (real_off == 0 || real_off + len < PROBE_MMAP_BEGINSIZ) {
|
||||
- DBG(BUFFER, ul_debug("\tmapping begin of the device (max size: %"PRIu64")", pr->size));
|
||||
- map_off = 0;
|
||||
- map_len = PROBE_MMAP_BEGINSIZ > pr->size ? pr->size : PROBE_MMAP_BEGINSIZ;
|
||||
-
|
||||
-
|
||||
- /* end of the device */
|
||||
- } else if (real_off > pr->off + pr->size - PROBE_MMAP_ENDSIZ) {
|
||||
- DBG(BUFFER, ul_debug("\tmapping end of the device (probing area: "
|
||||
- "off=%"PRIu64", size=%"PRIu64")", pr->off, pr->size));
|
||||
-
|
||||
- map_off = PROBE_ALIGN_OFF(pr, pr->off + pr->size - PROBE_MMAP_ENDSIZ);
|
||||
- map_len = pr->off + pr->size - map_off;
|
||||
-
|
||||
- /* middle of the device */
|
||||
- } else {
|
||||
- uint64_t minlen;
|
||||
-
|
||||
- map_off = PROBE_ALIGN_OFF(pr, real_off);
|
||||
- minlen = real_off + len - map_off;
|
||||
-
|
||||
- map_len = minlen > PROBE_MMAP_MIDSIZ ? minlen : PROBE_MMAP_MIDSIZ;
|
||||
-
|
||||
- if (map_off + map_len > pr->off + pr->size)
|
||||
- map_len = pr->size - map_off;
|
||||
- }
|
||||
-
|
||||
- assert(map_off <= real_off);
|
||||
- assert(map_off + map_len >= real_off + len);
|
||||
-
|
||||
- /* allocate buffer handler */
|
||||
- bf = malloc(sizeof(*bf));
|
||||
- if (!bf) {
|
||||
- errno = ENOMEM;
|
||||
- return NULL;
|
||||
- }
|
||||
-
|
||||
- /* mmap into memmory */
|
||||
- bf->data = mmap(NULL, map_len, PROT_READ, MAP_SHARED, pr->fd, map_off);
|
||||
- if (bf->data == MAP_FAILED) {
|
||||
- DBG(BUFFER, ul_debug("\tmmap failed: %m"));
|
||||
- free(bf);
|
||||
- return NULL;
|
||||
- }
|
||||
-
|
||||
- bf->off = map_off;
|
||||
- bf->len = map_len;
|
||||
- INIT_LIST_HEAD(&bf->bufs);
|
||||
-
|
||||
- DBG(BUFFER, ul_debug("\tmmap %p: off=%"PRIu64", len=%"PRIu64" (%"PRIu64" pages)",
|
||||
- bf->data, map_off, map_len, map_len / pr->mmap_granularity));
|
||||
- return bf;
|
||||
-}
|
||||
-
|
||||
static struct blkid_bufinfo *read_buffer(blkid_probe pr, uint64_t real_off, uint64_t len)
|
||||
{
|
||||
ssize_t ret;
|
||||
@@ -759,10 +679,7 @@ unsigned char *blkid_probe_get_buffer(blkid_probe pr, uint64_t off, uint64_t len
|
||||
|
||||
/* not found; read from disk */
|
||||
if (!bf) {
|
||||
- if (probe_is_mmap_wanted(pr))
|
||||
- bf = mmap_buffer(pr, real_off, len);
|
||||
- else
|
||||
- bf = read_buffer(pr, real_off, len);
|
||||
+ bf = read_buffer(pr, real_off, len);
|
||||
if (!bf)
|
||||
return NULL;
|
||||
|
||||
@@ -794,13 +711,10 @@ static void blkid_probe_reset_buffer(blkid_probe pr)
|
||||
|
||||
DBG(BUFFER, ul_debug(" remove buffer: %p [off=%"PRIu64", len=%"PRIu64"]",
|
||||
bf->data, bf->off, bf->len));
|
||||
-
|
||||
- if (probe_is_mmap_wanted(pr))
|
||||
- munmap(bf->data, bf->len);
|
||||
free(bf);
|
||||
}
|
||||
|
||||
- DBG(LOWPROBE, ul_debug(" buffers summary: %"PRIu64" bytes by %"PRIu64" read/mmap() calls",
|
||||
+ DBG(LOWPROBE, ul_debug(" buffers summary: %"PRIu64" bytes by %"PRIu64" read() calls",
|
||||
len, ct));
|
||||
|
||||
INIT_LIST_HEAD(&pr->buffers);
|
||||
--
|
||||
2.4.3
|
||||
|
||||
2
sources
2
sources
|
|
@ -1 +1 @@
|
|||
ea0c349440708f28e6e3edbc715a467d util-linux-2.28-rc2.tar.xz
|
||||
e534e6ccc49107e5d31c329af798ef7d util-linux-2.28.tar.xz
|
||||
|
|
|
|||
|
|
@ -2,13 +2,13 @@
|
|||
Summary: A collection of basic system utilities
|
||||
Name: util-linux
|
||||
Version: 2.28
|
||||
Release: 0.3%{?dist}
|
||||
Release: 1%{?dist}
|
||||
License: GPLv2 and GPLv2+ and LGPLv2+ and BSD with advertising and Public Domain
|
||||
Group: System Environment/Base
|
||||
URL: http://en.wikipedia.org/wiki/Util-linux
|
||||
|
||||
### Macros
|
||||
%define upstream_version %{version}-rc2
|
||||
%define upstream_version %{version}
|
||||
%define upstream_major %(eval echo %{version} | %{__sed} -e 's/\([[:digit:]]*\)\.\([[:digit:]]*\)\.[[:digit:]]*$/\1.\2/')
|
||||
|
||||
%define compldir %{_datadir}/bash-completion/completions/
|
||||
|
|
@ -88,8 +88,6 @@ Requires: libfdisk = %{version}-%{release}
|
|||
###
|
||||
# 151635 - makeing /var/log/lastlog
|
||||
Patch0: 2.23-login-lastlog-create.patch
|
||||
# upstream patch, revert mmap() based probing
|
||||
Patch1: 2.28-libblkid-mmap.patch
|
||||
|
||||
%description
|
||||
The util-linux package contains a large variety of low-level system
|
||||
|
|
@ -921,6 +919,9 @@ exit 0
|
|||
%{_libdir}/python*/site-packages/libmount/*
|
||||
|
||||
%changelog
|
||||
* Tue Apr 12 2016 Karel Zak <kzak@redhat.com> - 2.28-1
|
||||
- upgrade to stable v2.28
|
||||
|
||||
* Wed Mar 30 2016 Karel Zak <kzak@redhat.com> - 2.28-0.3
|
||||
- fix libblkid
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue