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Date: Fri, 29 Jul 2011 14:13:32 +0200
From: Lukas Czerner <lczerner@...hat.com>
To: linux-ext4@...r.kernel.org
Cc: tytso@....edu, Lukas Czerner <lczerner@...hat.com>
Subject: [PATCH] mke2fs: Use ext2fs_flush() only once
We are doing ext2fs_flush() twice right now at the end of the mke2fs.
First by directly calling ext2fs_flush() which is intended to write
superblock and fs accounting information. And then it is invoked again
when we are calling ext2fs_close(), only this time, because the fs is
not dirty, we are writing out only superblock.
I think it is bad to call it twice because even when writing only super
block it takes some time on bigger file systems and moreover
ext2fs_close() can fail without any reasonable explanation for the user.
Also ext2fs_flush() is printing out progress and it is confusing for the
users.
Fix all this by removing the ext2fs_flush() and leaving it all to
ext2fs_close(). However we need to introduce new variables to store
check interval and max mount count, because fs structure is freed on
ext2fs_close() and we really want to print those information as the last
info for the user.
Signed-off-by: Lukas Czerner <lczerner@...hat.com>
---
misc/mke2fs.c | 15 ++++++++-------
misc/tune2fs.c | 3 ++-
misc/util.c | 5 ++---
misc/util.h | 2 +-
tests/m_extent_journal/expect.1 | 2 +-
tests/m_uninit/expect.1 | 2 +-
6 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index e062bda..481e550 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -2143,7 +2143,7 @@ int main (int argc, char *argv[])
ext2_filsys fs;
badblocks_list bb_list = 0;
unsigned int journal_blocks;
- unsigned int i;
+ unsigned int i, max_mnt_count, checkinterval;
int val, hash_alg;
int flags;
int old_bitmaps;
@@ -2469,22 +2469,23 @@ no_journal:
if (!quiet)
printf(_("Writing superblocks and "
"filesystem accounting information: "));
- retval = ext2fs_flush(fs);
+ checkinterval = fs->super->s_checkinterval;
+ max_mnt_count = fs->super->s_max_mnt_count;
+ retval = ext2fs_close(fs);
if (retval) {
fprintf(stderr,
_("\nWarning, had trouble writing out superblocks."));
- }
- if (!quiet) {
+ } else if (!quiet) {
printf(_("done\n\n"));
if (!getenv("MKE2FS_SKIP_CHECK_MSG"))
- print_check_message(fs);
+ print_check_message(max_mnt_count, checkinterval);
}
- val = ext2fs_close(fs);
+
remove_error_table(&et_ext2_error_table);
remove_error_table(&et_prof_error_table);
profile_release(profile);
for (i=0; fs_types[i]; i++)
free(fs_types[i]);
free(fs_types);
- return (retval || val) ? 1 : 0;
+ return retval;
}
diff --git a/misc/tune2fs.c b/misc/tune2fs.c
index 5bf5187..0e1e1cf 100644
--- a/misc/tune2fs.c
+++ b/misc/tune2fs.c
@@ -568,7 +568,8 @@ static void add_journal(ext2_filsys fs)
if ((mount_flags & EXT2_MF_MOUNTED) == 0)
fs->flags &= ~EXT2_FLAG_SUPER_ONLY;
}
- print_check_message(fs);
+ print_check_message(fs->super->s_max_mnt_count,
+ fs->super->s_checkinterval);
return;
err:
diff --git a/misc/util.c b/misc/util.c
index 51bdb60..18329ee 100644
--- a/misc/util.c
+++ b/misc/util.c
@@ -282,12 +282,11 @@ unsigned int figure_journal_size(int size, ext2_filsys fs)
return j_blocks;
}
-void print_check_message(ext2_filsys fs)
+void print_check_message(unsigned int mnt, unsigned int check)
{
printf(_("This filesystem will be automatically "
"checked every %d mounts or\n"
"%g days, whichever comes first. "
"Use tune2fs -c or -i to override.\n"),
- fs->super->s_max_mnt_count,
- (double)fs->super->s_checkinterval / (3600 * 24));
+ mnt, check / (3600 * 24));
}
diff --git a/misc/util.h b/misc/util.h
index e0c99f6..d05f17e 100644
--- a/misc/util.h
+++ b/misc/util.h
@@ -23,4 +23,4 @@ extern void check_plausibility(const char *device);
extern void parse_journal_opts(const char *opts);
extern void check_mount(const char *device, int force, const char *type);
extern unsigned int figure_journal_size(int size, ext2_filsys fs);
-extern void print_check_message(ext2_filsys fs);
+extern void print_check_message(unsigned int, unsigned int);
diff --git a/tests/m_extent_journal/expect.1 b/tests/m_extent_journal/expect.1
index 88ea2d9..a8c5b63 100644
--- a/tests/m_extent_journal/expect.1
+++ b/tests/m_extent_journal/expect.1
@@ -18,7 +18,7 @@ Writing inode tables: 0/8...1/8...2/8...3/8...4/8...5/8...6/8...7/8... ...done
Creating journal (4096 blocks): done
Writing superblocks and filesystem accounting information: 0/8...1/8...2/8...3/8...4/8...5/8...6/8...7/8... ...done
-0/8...1/8...2/8...3/8...4/8...5/8...6/8...7/8... ...Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent sparse_super
+Filesystem features: has_journal ext_attr resize_inode dir_index filetype extent sparse_super
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
diff --git a/tests/m_uninit/expect.1 b/tests/m_uninit/expect.1
index 173c072..a3c059d 100644
--- a/tests/m_uninit/expect.1
+++ b/tests/m_uninit/expect.1
@@ -17,7 +17,7 @@ Allocating group tables: 0/16..... 1/16..... 2/16..... 3/16..... 4/16..... 5/16
Writing inode tables: 0/16..... 1/16..... 2/16..... 3/16..... 4/16..... 5/16..... 6/16..... 7/16..... 8/16..... 9/16.....10/16.....11/16.....12/16.....13/16.....14/16.....15/16..... .....done
Writing superblocks and filesystem accounting information: 0/16..... 1/16..... 2/16..... 3/16..... 4/16..... 5/16..... 6/16..... 7/16..... 8/16..... 9/16.....10/16.....11/16.....12/16.....13/16.....14/16.....15/16..... .....done
- 0/16..... 1/16..... 2/16..... 3/16..... 4/16..... 5/16..... 6/16..... 7/16..... 8/16..... 9/16.....10/16.....11/16.....12/16.....13/16.....14/16.....15/16..... .....Filesystem features: ext_attr resize_inode dir_index filetype sparse_super uninit_bg
+Filesystem features: ext_attr resize_inode dir_index filetype sparse_super uninit_bg
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
--
1.7.4.4
--
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