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Date: Sun, 18 Dec 2011 22:44:43 +0800
From: Zheng Liu <gnehzuil.liu@...il.com>
To: linux-ext4@...r.kernel.org
Cc: Zheng Liu <wenqing.lz@...bao.com>
Subject: [PATCH 4/5] e2fsck: make it to support inline data in pass1
From: Zheng Liu <wenqing.lz@...bao.com>
Let e2fsck to support inline data in pass1.
Signed-off-by: Zheng Liu <wenqing.lz@...bao.com>
---
e2fsck/pass1.c | 46 ++++++++++++++++++++++++++++++++++++++++++----
e2fsck/problem.c | 10 ++++++++++
e2fsck/problem.h | 6 ++++++
lib/ext2fs/ext2fs.h | 2 ++
lib/ext2fs/inline_data.c | 13 +++++++++++++
5 files changed, 73 insertions(+), 4 deletions(-)
diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c
index 532e132..05ea7ca 100644
--- a/e2fsck/pass1.c
+++ b/e2fsck/pass1.c
@@ -278,6 +278,10 @@ static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx)
int problem = 0;
inode = (struct ext2_inode_large *) pctx->inode;
+ if (inode->i_flags & EXT4_INLINE_DATA_FL) {
+ /* this inode has inline data, so nothing to check. */
+ return;
+ }
storage_size = EXT2_INODE_SIZE(ctx->fs->super) - EXT2_GOOD_OLD_INODE_SIZE -
inode->i_extra_isize;
start = ((char *) inode) + EXT2_GOOD_OLD_INODE_SIZE +
@@ -557,7 +561,7 @@ void e2fsck_pass1(e2fsck_t ctx)
struct scan_callback_struct scan_struct;
struct ext2_super_block *sb = ctx->fs->super;
const char *old_op;
- int imagic_fs, extent_fs;
+ int imagic_fs, extent_fs, inlinedata_fs;
int busted_fs_time = 0;
int inode_size;
@@ -590,6 +594,8 @@ void e2fsck_pass1(e2fsck_t ctx)
imagic_fs = (sb->s_feature_compat & EXT2_FEATURE_COMPAT_IMAGIC_INODES);
extent_fs = (sb->s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS);
+ inlinedata_fs = (sb->s_feature_incompat &
+ EXT4_FEATURE_INCOMPAT_INLINEDATA);
/*
* Allocate bitmaps structures
@@ -750,6 +756,20 @@ void e2fsck_pass1(e2fsck_t ctx)
}
/*
+ * Test for incorrect inline data flag settings.
+ */
+ if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
+ (ino >= EXT2_FIRST_INODE(fs->super))) {
+ if (ext2fs_inline_data_header_verify(fs, inode) == 0 &&
+ fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
+ sb->s_feature_incompat |= EXT4_FEATURE_INCOMPAT_INLINEDATA;
+ ext2fs_mark_super_dirty(fs);
+ inlinedata_fs = 1;
+ } else if (fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx))
+ goto clear_inode;
+ }
+
+ /*
* Test for incorrect extent flag settings.
*
* On big-endian machines we must be careful:
@@ -1115,7 +1135,8 @@ void e2fsck_pass1(e2fsck_t ctx)
ctx->fs_sockets_count++;
} else
mark_inode_bad(ctx, ino);
- if (!(inode->i_flags & EXT4_EXTENTS_FL)) {
+ if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
+ !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
if (inode->i_block[EXT2_IND_BLOCK])
ctx->fs_ind_count++;
if (inode->i_block[EXT2_DIND_BLOCK])
@@ -1124,6 +1145,7 @@ void e2fsck_pass1(e2fsck_t ctx)
ctx->fs_tind_count++;
}
if (!(inode->i_flags & EXT4_EXTENTS_FL) &&
+ !(inode->i_flags & EXT4_INLINE_DATA_FL) &&
(inode->i_block[EXT2_IND_BLOCK] ||
inode->i_block[EXT2_DIND_BLOCK] ||
inode->i_block[EXT2_TIND_BLOCK] ||
@@ -1929,6 +1951,14 @@ static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx,
ext2fs_extent_free(ehandle);
}
+static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx,
+ struct process_block_struct *pb)
+{
+ if (pb->is_dir)
+ pctx->errcode = ext2fs_add_dir_block2(ctx->fs->dblist,
+ pb->ino, 0, 0);
+}
+
/*
* This subroutine is called on each inode to account for all of the
* blocks used by that inode.
@@ -1943,6 +1973,7 @@ static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
int bad_size = 0;
int dirty_inode = 0;
int extent_fs;
+ int inlinedata_fs;
__u64 size;
pb.ino = ino;
@@ -1965,6 +1996,8 @@ static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
extent_fs = (ctx->fs->super->s_feature_incompat &
EXT3_FEATURE_INCOMPAT_EXTENTS);
+ inlinedata_fs = (ctx->fs->super->s_feature_incompat &
+ EXT4_FEATURE_INCOMPAT_INLINEDATA);
if (inode->i_flags & EXT2_COMPRBLK_FL) {
if (fs->super->s_feature_incompat &
@@ -1988,6 +2021,8 @@ static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
if (ext2fs_inode_has_valid_blocks2(fs, inode)) {
if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL))
check_blocks_extents(ctx, pctx, &pb);
+ else if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL))
+ check_blocks_inline_data(ctx, pctx, &pb);
else
pctx->errcode = ext2fs_block_iterate3(fs, ino,
pb.is_dir ? BLOCK_FLAG_HOLE : 0,
@@ -2024,7 +2059,8 @@ static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
}
}
- if (!pb.num_blocks && pb.is_dir) {
+ if (!pb.num_blocks && pb.is_dir &&
+ !(inode->i_flags & EXT4_INLINE_DATA_FL)) {
if (fix_problem(ctx, PR_1_ZERO_LENGTH_DIR, pctx)) {
e2fsck_clear_inode(ctx, ino, inode, 0, "check_blocks");
ctx->fs_directory_count--;
@@ -2050,7 +2086,9 @@ static void check_blocks(e2fsck_t ctx, struct problem_context *pctx,
#endif
if (pb.is_dir) {
int nblock = inode->i_size >> EXT2_BLOCK_SIZE_BITS(fs->super);
- if (inode->i_size & (fs->blocksize - 1))
+ if (inode->i_flags & EXT4_INLINE_DATA_FL)
+ ;
+ else if (inode->i_size & (fs->blocksize - 1))
bad_size = 5;
else if (nblock > (pb.last_block + 1))
bad_size = 1;
diff --git a/e2fsck/problem.c b/e2fsck/problem.c
index f042b89..88b6295 100644
--- a/e2fsck/problem.c
+++ b/e2fsck/problem.c
@@ -941,6 +941,16 @@ static struct e2fsck_problem problem_table[] = {
N_("The bad @b @i looks @n. "),
PROMPT_CLEAR, 0 },
+ /* inode has inline data, superblock missing INCOMPAT_INLINEDATA feature */
+ { PR_1_INLINE_DATA_FEATURE,
+ N_("@i %i is in inline data format, but @S is missing INLINEDATA feature\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* INLINE_DATA_FL flag set on a non-inline-data filesystem */
+ { PR_1_INLINE_DATA_SET,
+ N_("@i %i has INLINE_DATA_FL flag set on @f without inline data support.\n"),
+ PROMPT_CLEAR, 0 },
+
/* Pass 1b errors */
/* Pass 1B: Rescan for duplicate/bad blocks */
diff --git a/e2fsck/problem.h b/e2fsck/problem.h
index 9db29d8..bb92f60 100644
--- a/e2fsck/problem.h
+++ b/e2fsck/problem.h
@@ -550,6 +550,12 @@ struct problem_context {
/* Invalid bad inode */
#define PR_1_INVALID_BAD_INODE 0x010065
+/* INLINE_DATA_FL flag set on a non-inline-data capable filesystem */
+#define PR_1_INLINE_DATA_FEATURE 0x010066
+
+/* inode has inline data, superblock missing INCOMPAT_INLINEDATA feature */
+#define PR_1_INLINE_DATA_SET 0x010067
+
/*
* Pass 1b errors
*/
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index c17922e..dc40359 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -1224,6 +1224,8 @@ extern errcode_t ext2fs_initialize(const char *name, int flags,
io_manager manager, ext2_filsys *ret_fs);
/* inline_data.c */
+extern errcode_t ext2fs_inline_data_header_verify(ext2_filsys fs,
+ struct ext2_inode *inode);
extern errcode_t ext2fs_find_inline_entry(ext2_filsys fs,
struct ext2_inode *inode,
void *priv_data);
diff --git a/lib/ext2fs/inline_data.c b/lib/ext2fs/inline_data.c
index dcf33f9..3a29ee7 100644
--- a/lib/ext2fs/inline_data.c
+++ b/lib/ext2fs/inline_data.c
@@ -222,3 +222,16 @@ out:
free(inode);
return ret;
}
+
+errcode_t ext2fs_inline_data_header_verify(ext2_filsys fs,
+ struct ext2_inode *inode)
+{
+ struct inline_data idata;
+ int ret = 0;
+
+ ext2fs_iget_extra_inode(fs, inode, &idata);
+ if (idata.inline_off == 0)
+ ret = -1;
+
+ return ret;
+}
--
1.7.4.1
--
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