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Date: Mon, 30 Jul 2012 17:47:40 -0400
From: Theodore Ts'o <tytso@....edu>
To: Ext4 Developers List <linux-ext4@...r.kernel.org>
Cc: tony@...eyournoodle.com, Theodore Ts'o <tytso@....edu>
Subject: [PATCH 5/7] libext2fs: call numeric_progress functions through a operations struct
Instead of calling ext2fs_numeric_progress_*() directly from closefs.c
and alloc_tables.c, call it via a operations structure which is only
initialized by the one program (mke2fs) which needs it.
This reduces the number of C library symbols needed by boot loader
systems such as yaboot.
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
---
lib/ext2fs/alloc_tables.c | 11 +++++++----
lib/ext2fs/closefs.c | 11 +++++++----
lib/ext2fs/ext2fs.h | 3 +++
lib/ext2fs/ext2fsP.h | 17 +++++++++++++++++
lib/ext2fs/progress.c | 6 ++++++
misc/mke2fs.c | 1 +
6 files changed, 41 insertions(+), 8 deletions(-)
diff --git a/lib/ext2fs/alloc_tables.c b/lib/ext2fs/alloc_tables.c
index 9f3d4e0..5e6e556 100644
--- a/lib/ext2fs/alloc_tables.c
+++ b/lib/ext2fs/alloc_tables.c
@@ -230,16 +230,19 @@ errcode_t ext2fs_allocate_tables(ext2_filsys fs)
dgrp_t i;
struct ext2fs_numeric_progress_struct progress;
- ext2fs_numeric_progress_init(fs, &progress, NULL,
- fs->group_desc_count);
+ if (fs->progress_ops && fs->progress_ops->init)
+ (fs->progress_ops->init)(fs, &progress, NULL,
+ fs->group_desc_count);
for (i = 0; i < fs->group_desc_count; i++) {
- ext2fs_numeric_progress_update(fs, &progress, i);
+ if (fs->progress_ops && fs->progress_ops->update)
+ (fs->progress_ops->update)(fs, &progress, i);
retval = ext2fs_allocate_group_table(fs, i, fs->block_map);
if (retval)
return retval;
}
- ext2fs_numeric_progress_close(fs, &progress, NULL);
+ if (fs->progress_ops && fs->progress_ops->close)
+ (fs->progress_ops->close)(fs, &progress, NULL);
return 0;
}
diff --git a/lib/ext2fs/closefs.c b/lib/ext2fs/closefs.c
index 973c2a2..bb7f8b3 100644
--- a/lib/ext2fs/closefs.c
+++ b/lib/ext2fs/closefs.c
@@ -340,14 +340,16 @@ errcode_t ext2fs_flush2(ext2_filsys fs, int flags)
else
old_desc_blocks = fs->desc_blocks;
- ext2fs_numeric_progress_init(fs, &progress, NULL,
- fs->group_desc_count);
+ if (fs->progress_ops && fs->progress_ops->init)
+ (fs->progress_ops->init)(fs, &progress, NULL,
+ fs->group_desc_count);
for (i = 0; i < fs->group_desc_count; i++) {
blk64_t super_blk, old_desc_blk, new_desc_blk;
- ext2fs_numeric_progress_update(fs, &progress, i);
+ if (fs->progress_ops && fs->progress_ops->update)
+ (fs->progress_ops->update)(fs, &progress, i);
ext2fs_super_and_bgd_loc2(fs, i, &super_blk, &old_desc_blk,
&new_desc_blk, 0);
@@ -376,7 +378,8 @@ errcode_t ext2fs_flush2(ext2_filsys fs, int flags)
}
}
- ext2fs_numeric_progress_close(fs, &progress, NULL);
+ if (fs->progress_ops && fs->progress_ops->close)
+ (fs->progress_ops->close)(fs, &progress, NULL);
/*
* If the write_bitmaps() function is present, call it to
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index 62282b1..5746b4f 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -267,6 +267,9 @@ struct struct_ext2_filsys {
* Time at which e2fsck last updated the MMP block.
*/
long mmp_last_written;
+
+ /* progress operation functions */
+ struct ext2fs_progress_ops *progress_ops;
};
#if EXT2_FLAT_INCLUDES
diff --git a/lib/ext2fs/ext2fsP.h b/lib/ext2fs/ext2fsP.h
index 729d5c5..bdfb85e 100644
--- a/lib/ext2fs/ext2fsP.h
+++ b/lib/ext2fs/ext2fsP.h
@@ -95,6 +95,23 @@ struct ext2fs_numeric_progress_struct {
int skip_progress;
};
+/*
+ * progress callback functions
+ */
+struct ext2fs_progress_ops {
+ void (*init)(ext2_filsys fs,
+ struct ext2fs_numeric_progress_struct * progress,
+ const char *label, __u64 max);
+ void (*update)(ext2_filsys fs,
+ struct ext2fs_numeric_progress_struct * progress,
+ __u64 val);
+ void (*close)(ext2_filsys fs,
+ struct ext2fs_numeric_progress_struct * progress,
+ const char *message);
+};
+
+extern struct ext2fs_progress_ops ext2fs_numeric_progress_ops;
+
extern void ext2fs_numeric_progress_init(ext2_filsys fs,
struct ext2fs_numeric_progress_struct * progress,
const char *label, __u64 max);
diff --git a/lib/ext2fs/progress.c b/lib/ext2fs/progress.c
index 37d1509..432816b 100644
--- a/lib/ext2fs/progress.c
+++ b/lib/ext2fs/progress.c
@@ -16,6 +16,12 @@
static char spaces[80], backspaces[80];
+struct ext2fs_progress_ops ext2fs_numeric_progress_ops = {
+ .init = ext2fs_numeric_progress_init,
+ .update = ext2fs_numeric_progress_update,
+ .close = ext2fs_numeric_progress_close,
+};
+
static int int_log10(unsigned int arg)
{
int l;
diff --git a/misc/mke2fs.c b/misc/mke2fs.c
index 7ec8cc2..01b2111 100644
--- a/misc/mke2fs.c
+++ b/misc/mke2fs.c
@@ -2277,6 +2277,7 @@ int main (int argc, char *argv[])
com_err(device_name, retval, _("while setting up superblock"));
exit(1);
}
+ fs->progress_ops = &ext2fs_numeric_progress_ops;
/* Can't undo discard ... */
if (!noaction && discard && (io_ptr != undo_io_manager)) {
--
1.7.12.rc0.22.gcdd159b
--
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