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Date: Sun, 16 Sep 2007 22:57:40 -0400
From: Theodore Ts'o <tytso@....edu>
To: linux-ext4@...r.kernel.org
Cc: Theodore Ts'o <tytso@....edu>
Subject: [PATCH,RFC 3/4] e2fsck: factor out code to clear an inode into e2fsck_clear_inode()
Factor out code to clear a bogus inode and update e2fsck's internal
data structures accordingly into a common routine,
e2fsck_clear_inode(). This saves about 200 bytes in the compiled x86
e2fsck executable, and makes the code more maintainable in the
long-term.
Signed-off-by: "Theodore Ts'o" <tytso@....edu>
---
e2fsck/e2fsck.h | 3 ++
e2fsck/pass1.c | 61 ++++++++++++++++++++++++++++--------------------------
e2fsck/pass1b.c | 6 +----
e2fsck/pass2.c | 9 +-------
e2fsck/pass4.c | 7 +-----
5 files changed, 38 insertions(+), 48 deletions(-)
diff --git a/e2fsck/e2fsck.h b/e2fsck/e2fsck.h
index 99c0ae5..d8e85ad 100644
--- a/e2fsck/e2fsck.h
+++ b/e2fsck/e2fsck.h
@@ -430,6 +430,9 @@ extern int e2fsck_pass1_check_device_inode(ext2_filsys fs,
struct ext2_inode *inode);
extern int e2fsck_pass1_check_symlink(ext2_filsys fs,
struct ext2_inode *inode, char *buf);
+extern void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
+ struct ext2_inode *inode, int restart_flag,
+ const char *source);
/* pass2.c */
extern int e2fsck_process_bad_inode(e2fsck_t ctx, ext2_ino_t dir,
diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c
index ceb9c7f..7fba823 100644
--- a/e2fsck/pass1.c
+++ b/e2fsck/pass1.c
@@ -696,14 +696,9 @@ void e2fsck_pass1(e2fsck_t ctx)
*/
if (!LINUX_S_ISDIR(inode->i_mode)) {
if (fix_problem(ctx, PR_1_ROOT_NO_DIR, &pctx)) {
- inode->i_dtime = ctx->now;
- inode->i_links_count = 0;
- ext2fs_icount_store(ctx->inode_link_info,
- ino, 0);
- e2fsck_write_inode(ctx, ino, inode,
- "pass1");
+ e2fsck_clear_inode(ctx, ino, inode,
+ 0, "pass1");
}
-
}
/*
* If dtime is set, offer to clear it. mke2fs
@@ -1468,6 +1463,31 @@ static int handle_htree(e2fsck_t ctx, struct problem_context *pctx,
return 0;
}
+void e2fsck_clear_inode(e2fsck_t ctx, ext2_ino_t ino,
+ struct ext2_inode *inode, int restart_flag,
+ const char *source)
+{
+
+ inode->i_links_count = 0;
+ ext2fs_icount_store(ctx->inode_link_info, ino, 0);
+ inode->i_dtime = ctx->now;
+
+ ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
+ ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
+ if (ctx->inode_reg_map)
+ ext2fs_unmark_inode_bitmap(ctx->inode_reg_map, ino);
+ if (ctx->inode_bad_map)
+ ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino);
+
+ /*
+ * If the inode was partially accounted for before processing
+ * was aborted, we need to restart the pass 1 scan.
+ */
+ ctx->flags |= restart_flag;
+
+ e2fsck_write_inode(ctx, ino, inode, source);
+}
+
/*
* This subroutine is called on each inode to account for all of the
* blocks used by that inode.
@@ -1530,20 +1550,9 @@ static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
ctx->fs_fragmented++;
if (pb.clear) {
- inode->i_links_count = 0;
- ext2fs_icount_store(ctx->inode_link_info, ino, 0);
- inode->i_dtime = ctx->now;
- dirty_inode++;
- ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_reg_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
- /*
- * The inode was probably partially accounted for
- * before processing was aborted, so we need to
- * restart the pass 1 scan.
- */
- ctx->flags |= E2F_FLAG_RESTART;
- goto out;
+ e2fsck_clear_inode(ctx, ino, inode, E2F_FLAG_RESTART,
+ "check_blocks");
+ return;
}
if (inode->i_flags & EXT2_INDEX_FL) {
@@ -1563,15 +1572,9 @@ static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
if (!pb.num_blocks && pb.is_dir) {
if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
- inode->i_links_count = 0;
- ext2fs_icount_store(ctx->inode_link_info, ino, 0);
- inode->i_dtime = ctx->now;
- dirty_inode++;
- ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_reg_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
+ e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
ctx->fs_directory_count--;
- goto out;
+ return;
}
}
diff --git a/e2fsck/pass1b.c b/e2fsck/pass1b.c
index 118f956..5d062ca 100644
--- a/e2fsck/pass1b.c
+++ b/e2fsck/pass1b.c
@@ -594,16 +594,13 @@ static void delete_file(e2fsck_t ctx, ext2_ino_t ino,
delete_file_block, &pb);
if (pctx.errcode)
fix_problem(ctx, PR_1B_BLOCK_ITERATE, &pctx);
- ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
if (ctx->inode_bad_map)
ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino);
ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode));
/* Inode may have changed by block_iterate, so reread it */
e2fsck_read_inode(ctx, ino, &inode, "delete_file");
- inode.i_links_count = 0;
- inode.i_dtime = ctx->now;
+ e2fsck_clear_inode(ctx, ino, &inode, 0, "delete_file");
if (inode.i_file_acl &&
(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR)) {
count = 1;
@@ -629,7 +626,6 @@ static void delete_file(e2fsck_t ctx, ext2_ino_t ino,
delete_file_block(fs, &inode.i_file_acl,
BLOCK_COUNT_EXTATTR, 0, 0, &pb);
}
- e2fsck_write_inode(ctx, ino, &inode, "delete_file");
}
struct clone_struct {
diff --git a/e2fsck/pass2.c b/e2fsck/pass2.c
index 7f7635f..8e651c7 100644
--- a/e2fsck/pass2.c
+++ b/e2fsck/pass2.c
@@ -1109,11 +1109,8 @@ static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf)
struct problem_context pctx;
__u32 count;
- ext2fs_icount_store(ctx->inode_link_info, ino, 0);
e2fsck_read_inode(ctx, ino, &inode, "deallocate_inode");
- inode.i_links_count = 0;
- inode.i_dtime = ctx->now;
- e2fsck_write_inode(ctx, ino, &inode, "deallocate_inode");
+ e2fsck_clear_inode(ctx, ino, &inode, 0, "deallocate_inode");
clear_problem_context(&pctx);
pctx.ino = ino;
@@ -1121,10 +1118,6 @@ static void deallocate_inode(e2fsck_t ctx, ext2_ino_t ino, char* block_buf)
* Fix up the bitmaps...
*/
e2fsck_read_bitmaps(ctx);
- ext2fs_unmark_inode_bitmap(ctx->inode_used_map, ino);
- ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, ino);
- if (ctx->inode_bad_map)
- ext2fs_unmark_inode_bitmap(ctx->inode_bad_map, ino);
ext2fs_inode_alloc_stats2(fs, ino, -1, LINUX_S_ISDIR(inode.i_mode));
if (inode.i_file_acl &&
diff --git a/e2fsck/pass4.c b/e2fsck/pass4.c
index 0fb8ee7..3eca1c2 100644
--- a/e2fsck/pass4.c
+++ b/e2fsck/pass4.c
@@ -43,17 +43,12 @@ static int disconnect_inode(e2fsck_t ctx, ext2_ino_t i)
if (!inode.i_blocks && (LINUX_S_ISREG(inode.i_mode) ||
LINUX_S_ISDIR(inode.i_mode))) {
if (fix_problem(ctx, PR_4_ZERO_LEN_INODE, &pctx)) {
- ext2fs_icount_store(ctx->inode_link_info, i, 0);
- inode.i_links_count = 0;
- inode.i_dtime = ctx->now;
- e2fsck_write_inode(ctx, i, &inode,
+ e2fsck_clear_inode(ctx, i, &inode, 0,
"disconnect_inode");
/*
* Fix up the bitmaps...
*/
e2fsck_read_bitmaps(ctx);
- ext2fs_unmark_inode_bitmap(ctx->inode_used_map, i);
- ext2fs_unmark_inode_bitmap(ctx->inode_dir_map, i);
ext2fs_inode_alloc_stats2(fs, i, -1,
LINUX_S_ISDIR(inode.i_mode));
return 0;
--
1.5.3.1.19.gb5ef6
-
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