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Date: Thu, 12 Mar 2015 19:20:12 +0300
From: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
To: Andreas Dilger <adilger@...ger.ca>, linux-ext4@...r.kernel.org,
Theodore Ts'o <tytso@....edu>,
"Darrick J. Wong" <darrick.wong@...cle.com>
Cc: Li Xi <pkuelelixi@...il.com>
Subject: [PATCH RFC v1 1/4] resize2fs: allocate ext2_resize_t outside of
resize_fs
This structure will be used for passing more parameters into resize_fs().
Signed-off-by: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
---
resize/main.c | 22 +++++++++++++++++++---
resize/resize2fs.c | 42 ++++++++++++++----------------------------
resize/resize2fs.h | 7 +++----
3 files changed, 36 insertions(+), 35 deletions(-)
diff --git a/resize/main.c b/resize/main.c
index c25de61947f3..16f48d438cb0 100644
--- a/resize/main.c
+++ b/resize/main.c
@@ -187,6 +187,7 @@ int main (int argc, char ** argv)
long sysval;
int len, mount_flags;
char *mtpt;
+ ext2_resize_t rfs;
#ifdef ENABLE_NLS
setlocale(LC_MESSAGES, "");
@@ -203,6 +204,15 @@ int main (int argc, char ** argv)
if (argc && *argv)
program_name = *argv;
+ /*
+ * Create the data structure
+ */
+ retval = ext2fs_get_memzero(sizeof(struct ext2_resize_struct), &rfs);
+ if (retval) {
+ com_err("resize2fs", retval, "can't allocate data structure\n");
+ exit(1);
+ }
+
while ((c = getopt(argc, argv, "d:fFhMPpS:bs")) != EOF) {
switch (c) {
case 'h':
@@ -526,9 +536,14 @@ int main (int argc, char ** argv)
printf(_("Resizing the filesystem on "
"%s to %llu (%dk) blocks.\n"),
device_name, new_size, blocksize / 1024);
- retval = resize_fs(fs, &new_size, flags,
- ((flags & RESIZE_PERCENT_COMPLETE) ?
- resize_progress_func : 0));
+
+ rfs->flags = flags;
+ rfs->new_size = new_size;
+ if (flags & RESIZE_PERCENT_COMPLETE)
+ rfs->progress = resize_progress_func;
+
+ retval = resize_fs(fs, rfs);
+ new_size = rfs->new_size;
}
free(mtpt);
if (retval) {
@@ -562,5 +577,6 @@ int main (int argc, char ** argv)
if (fd > 0)
close(fd);
remove_error_table(&et_ext2_error_table);
+ ext2fs_free_mem(&rfs);
return (0);
}
diff --git a/resize/resize2fs.c b/resize/resize2fs.c
index 041ff75029b2..dead364bf4bf 100644
--- a/resize/resize2fs.c
+++ b/resize/resize2fs.c
@@ -42,7 +42,7 @@
#endif
static void fix_uninit_block_bitmaps(ext2_filsys fs);
-static errcode_t adjust_superblock(ext2_resize_t rfs, blk64_t new_size);
+static errcode_t adjust_superblock(ext2_resize_t rfs);
static errcode_t blocks_to_move(ext2_resize_t rfs);
static errcode_t block_mover(ext2_resize_t rfs);
static errcode_t inode_scan_and_fix(ext2_resize_t rfs);
@@ -56,7 +56,7 @@ static errcode_t mark_table_blocks(ext2_filsys fs,
static errcode_t clear_sparse_super2_last_group(ext2_resize_t rfs);
static errcode_t reserve_sparse_super2_last_group(ext2_resize_t rfs,
ext2fs_block_bitmap meta_bmap);
-static errcode_t resize_group_descriptors(ext2_resize_t rfs, blk64_t new_size);
+static errcode_t resize_group_descriptors(ext2_resize_t rfs);
static errcode_t move_bg_metadata(ext2_resize_t rfs);
static errcode_t zero_high_bits_in_inodes(ext2_resize_t rfs);
@@ -84,28 +84,15 @@ static int lazy_itable_init;
/*
* This is the top-level routine which does the dirty deed....
*/
-errcode_t resize_fs(ext2_filsys fs, blk64_t *new_size, int flags,
- errcode_t (*progress)(ext2_resize_t rfs, int pass,
- unsigned long cur,
- unsigned long max_val))
+errcode_t resize_fs(ext2_filsys fs, ext2_resize_t rfs)
{
- ext2_resize_t rfs;
errcode_t retval;
struct resource_track rtrack, overall_track;
+ int flags = rfs->flags;
- /*
- * Create the data structure
- */
- retval = ext2fs_get_mem(sizeof(struct ext2_resize_struct), &rfs);
- if (retval)
- return retval;
-
- memset(rfs, 0, sizeof(struct ext2_resize_struct));
- fs->priv_data = rfs;
rfs->old_fs = fs;
- rfs->flags = flags;
- rfs->itable_buf = 0;
- rfs->progress = progress;
+ fs->priv_data = rfs;
+ rfs->itable_buf = 0;
init_resource_track(&overall_track, "overall resize2fs", fs->io);
init_resource_track(&rtrack, "read_bitmaps", fs->io);
@@ -126,7 +113,7 @@ errcode_t resize_fs(ext2_filsys fs, blk64_t *new_size, int flags,
goto errout;
init_resource_track(&rtrack, "resize_group_descriptors", fs->io);
- retval = resize_group_descriptors(rfs, *new_size);
+ retval = resize_group_descriptors(rfs);
if (retval)
goto errout;
print_resource_track(rfs, &rtrack, fs->io);
@@ -144,7 +131,7 @@ errcode_t resize_fs(ext2_filsys fs, blk64_t *new_size, int flags,
print_resource_track(rfs, &rtrack, fs->io);
init_resource_track(&rtrack, "adjust_superblock", fs->io);
- retval = adjust_superblock(rfs, *new_size);
+ retval = adjust_superblock(rfs);
if (retval)
goto errout;
print_resource_track(rfs, &rtrack, fs->io);
@@ -156,7 +143,7 @@ errcode_t resize_fs(ext2_filsys fs, blk64_t *new_size, int flags,
ext2fs_bg_flags_clear(rfs->new_fs, rfs->new_fs->group_desc_count - 1,
EXT2_BG_BLOCK_UNINIT);
- *new_size = ext2fs_blocks_count(rfs->new_fs->super);
+ rfs->new_size = ext2fs_blocks_count(rfs->new_fs->super);
init_resource_track(&rtrack, "blocks_to_move", fs->io);
retval = blocks_to_move(rfs);
@@ -240,7 +227,6 @@ errcode_t resize_fs(ext2_filsys fs, blk64_t *new_size, int flags,
ext2fs_free_block_bitmap(rfs->reserve_blocks);
if (rfs->move_blocks)
ext2fs_free_block_bitmap(rfs->move_blocks);
- ext2fs_free_mem(&rfs);
return 0;
@@ -251,7 +237,6 @@ errout:
}
if (rfs->itable_buf)
ext2fs_free_mem(&rfs->itable_buf);
- ext2fs_free_mem(&rfs);
return retval;
}
@@ -274,7 +259,7 @@ static void adjust_reserved_gdt_blocks(ext2_filsys old_fs, ext2_filsys fs)
}
/* Toggle 64bit mode */
-static errcode_t resize_group_descriptors(ext2_resize_t rfs, blk64_t new_size)
+static errcode_t resize_group_descriptors(ext2_resize_t rfs)
{
void *o, *n, *new_group_desc;
dgrp_t i;
@@ -284,7 +269,7 @@ static errcode_t resize_group_descriptors(ext2_resize_t rfs, blk64_t new_size)
if (!(rfs->flags & (RESIZE_DISABLE_64BIT | RESIZE_ENABLE_64BIT)))
return 0;
- if (new_size != ext2fs_blocks_count(rfs->new_fs->super) ||
+ if (rfs->new_size != ext2fs_blocks_count(rfs->new_fs->super) ||
ext2fs_blocks_count(rfs->new_fs->super) >= (1ULL << 32) ||
(rfs->flags & RESIZE_DISABLE_64BIT &&
rfs->flags & RESIZE_ENABLE_64BIT))
@@ -1006,7 +991,7 @@ errout:
* This routine adjusts the superblock and other data structures, both
* in disk as well as in memory...
*/
-static errcode_t adjust_superblock(ext2_resize_t rfs, blk64_t new_size)
+static errcode_t adjust_superblock(ext2_resize_t rfs)
{
ext2_filsys fs = rfs->new_fs;
int adj = 0;
@@ -1024,7 +1009,8 @@ static errcode_t adjust_superblock(ext2_resize_t rfs, blk64_t new_size)
if (retval)
return retval;
- retval = adjust_fs_info(fs, rfs->old_fs, rfs->reserve_blocks, new_size);
+ retval = adjust_fs_info(fs, rfs->old_fs,
+ rfs->reserve_blocks, rfs->new_size);
if (retval)
goto errout;
diff --git a/resize/resize2fs.h b/resize/resize2fs.h
index 829fcd8ea8e1..c5377e2b06c3 100644
--- a/resize/resize2fs.h
+++ b/resize/resize2fs.h
@@ -128,6 +128,8 @@ struct ext2_resize_struct {
unsigned long cur,
unsigned long max);
void *prog_data;
+
+ blk64_t new_size;
};
/*
@@ -141,10 +143,7 @@ struct ext2_resize_struct {
/* prototypes */
-extern errcode_t resize_fs(ext2_filsys fs, blk64_t *new_size, int flags,
- errcode_t (*progress)(ext2_resize_t rfs,
- int pass, unsigned long cur,
- unsigned long max));
+extern errcode_t resize_fs(ext2_filsys fs, ext2_resize_t rfs);
extern errcode_t adjust_fs_info(ext2_filsys fs, ext2_filsys old_fs,
ext2fs_block_bitmap reserve_blocks,
--
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