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Date: Sat, 22 Sep 2012 12:01:04 +0800
From: Zheng Liu <gnehzuil.liu@...il.com>
To: linux-ext4@...r.kernel.org
Cc: tytso@....edu, Zheng Liu <wenqing.lz@...bao.com>
Subject: [PATCH 16/21 v5] e2fsck: add problem descriptions and check inline data feature
From: Zheng Liu <wenqing.lz@...bao.com>
Signed-off-by: Zheng Liu <wenqing.lz@...bao.com>
---
e2fsck/pass1.c | 33 ++++++++++++++++++++++++++++++++-
e2fsck/problem.c | 15 +++++++++++++++
e2fsck/problem.h | 9 +++++++++
lib/ext2fs/ext2fs.h | 1 +
lib/ext2fs/inline_data.c | 28 ++++++++++++++++++++++++++++
5 files changed, 85 insertions(+), 1 deletions(-)
diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c
index a4bd956..1a12ed3 100644
--- a/e2fsck/pass1.c
+++ b/e2fsck/pass1.c
@@ -593,7 +593,7 @@ void e2fsck_pass1(e2fsck_t ctx)
struct ext2_super_block *sb = ctx->fs->super;
const char *old_op;
unsigned int save_type;
- int imagic_fs, extent_fs;
+ int imagic_fs, extent_fs, inlinedata_fs;
int busted_fs_time = 0;
int inode_size;
int failed_csum = 0;
@@ -627,6 +627,8 @@ 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_INLINE_DATA);
/*
* Allocate bitmaps structures
@@ -758,6 +760,20 @@ void e2fsck_pass1(e2fsck_t ctx)
ext2fs_mark_block_bitmap2(ctx->block_found_map,
fs->super->s_mmp_block);
+ /*
+ * If INLINE_DATA feature is set and EXT_ATTR feature missing,
+ * EXT_ATTR needs to be set because INLINE_DATA depends on it and
+ * this feature is enabled on default.
+ */
+ if (!(fs->super->s_feature_compat & EXT2_FEATURE_COMPAT_EXT_ATTR) &&
+ inlinedata_fs) {
+ if (fix_problem(ctx, PR_1_INLINE_DATA_AND_EXT_ATTR, &pctx)) {
+ fs->super->s_feature_compat |=
+ EXT2_FEATURE_COMPAT_EXT_ATTR;
+ ext2fs_mark_super_dirty(fs);
+ }
+ }
+
/* Set up ctx->lost_and_found if possible */
(void) e2fsck_get_lost_and_found(ctx, 0);
@@ -809,6 +825,21 @@ void e2fsck_pass1(e2fsck_t ctx)
}
}
+ /* Test for incrrect inline_data flags settings. */
+ if ((inode->i_flags & EXT4_INLINE_DATA_FL) && !inlinedata_fs &&
+ (ino >= EXT2_FIRST_INODE(fs->super))) {
+ if (ext2fs_inline_data_header_check(fs, ino) &&
+ !fix_problem(ctx, PR_1_INLINE_DATA_FEATURE, &pctx)) {
+ sb->s_feature_incompat |=
+ EXT4_FEATURE_INCOMPAT_INLINE_DATA;
+ ext2fs_mark_super_dirty(fs);
+ inlinedata_fs = 1;
+ } else if (!fix_problem(ctx, PR_1_INLINE_DATA_SET, &pctx)) {
+ e2fsck_clear_inode(ctx, ino, inode, 0, "pass1");
+ continue;
+ }
+ }
+
/*
* Test for incorrect extent flag settings.
*
diff --git a/e2fsck/problem.c b/e2fsck/problem.c
index 78b05bb..ae99d6c 100644
--- a/e2fsck/problem.c
+++ b/e2fsck/problem.c
@@ -1000,6 +1000,21 @@ static struct e2fsck_problem problem_table[] = {
"@i %i does not match. "),
PROMPT_FIX, 0 },
+ /* INLINE_DATA feature is set, but EXT_ATTR missing */
+ { PR_1_INLINE_DATA_AND_EXT_ATTR,
+ N_("INLINE_DATA feature is set in @S, but EXT_ATTR feature missing\n"),
+ PROMPT_FIX, 0 },
+
+ /* Inode has inline data, but superblock is missing INLINE_DATA feature. */
+ { PR_1_INLINE_DATA_FEATURE,
+ N_("@i %i has inline data, but @S is missing INLINE_DATA feature\n"),
+ PROMPT_CLEAR, PR_PREEN_OK },
+
+ /* INLINE_DATA feature is set in a non-inline-data filesystem */
+ { PR_1_INLINE_DATA_SET,
+ N_("@i %i has INLINE_DATA_FL flag 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 5caade4..2713f6c 100644
--- a/e2fsck/problem.h
+++ b/e2fsck/problem.h
@@ -586,6 +586,15 @@ struct problem_context {
/* ea block passes checks, but checksum invalid */
#define PR_1_EA_BLOCK_ONLY_CSUM_INVALID 0x01006C
+/* INLINE_DATA feature is set, but EXT_ATTR missing */
+#define PR_1_INLINE_DATA_AND_EXT_ATTR 0x01006D
+
+/* Inode has inline data, but superblock is missing INLINE_DATA feature. */
+#define PR_1_INLINE_DATA_FEATURE 0x01006E
+
+/* INLINE_DATA feature is set in a non-inline-data filesystem */
+#define PR_1_INLINE_DATA_SET 0x01006F
+
/*
* Pass 1b errors
diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h
index d1f4218..a4a3d06 100644
--- a/lib/ext2fs/ext2fs.h
+++ b/lib/ext2fs/ext2fs.h
@@ -1344,6 +1344,7 @@ extern int ext2fs_inline_data_iterate(ext2_filsys fs,
struct ext2_inode_large *inode,
void *priv_data),
void *priv_data);
+extern int ext2fs_inline_data_header_check(ext2_filsys fs, ext2_ino_t ino);
extern errcode_t ext2fs_inline_data_mkdir(ext2_filsys fs, ext2_ino_t parent,
ext2_ino_t ino, const char *name);
extern errcode_t ext2fs_convert_inline_data(ext2_filsys fs, ext2_ino_t ino,
diff --git a/lib/ext2fs/inline_data.c b/lib/ext2fs/inline_data.c
index 4a98a37..d98b6c7 100644
--- a/lib/ext2fs/inline_data.c
+++ b/lib/ext2fs/inline_data.c
@@ -541,6 +541,34 @@ out:
return retval;
}
+int ext2fs_inline_data_header_check(ext2_filsys fs, ext2_ino_t ino)
+{
+ struct ext2_inode_large *inode;
+ struct inline_data data;
+ errcode_t retval = 0;
+ int pass = 0;
+
+ retval = ext2fs_get_mem(EXT2_INODE_SIZE(fs->super), &inode);
+ if (retval);
+ return pass;
+
+ retval = ext2fs_read_inode_full(fs, ino, (void *)inode,
+ EXT2_INODE_SIZE(fs->super));
+ if (retval)
+ goto err;
+
+ retval = ext2fs_iget_extra_inode(fs, inode, &data);
+ if (retval)
+ goto err;
+
+ if (data.inline_off != 0)
+ pass = 1;
+
+err:
+ ext2fs_free_mem(&inode);
+ return pass;
+}
+
errcode_t ext2fs_convert_inline_data(ext2_filsys fs,
ext2_ino_t ino,
void *priv_data)
--
1.7.4.1
--
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