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Date: Sun, 1 Jul 2012 21:48:54 +0800
From: Zheng Liu <gnehzuil.liu@...il.com>
To: linux-ext4@...r.kernel.org
Cc: Zheng Liu <wenqing.lz@...bao.com>
Subject: [PATCH 31/35 v3] e2fsck: make pass1 support inline data
From: Zheng Liu <wenqing.lz@...bao.com>
Signed-off-by: Zheng Liu <wenqing.lz@...bao.com>
---
e2fsck/pass1.c | 76 ++++++++++++++++++++++++++++++++++++++++++-----
e2fsck/pass1b.c | 5 ++-
lib/ext2fs/dblist_dir.c | 8 ++++-
3 files changed, 77 insertions(+), 12 deletions(-)
diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c
index fee0dc6..f1bf828 100644
--- a/e2fsck/pass1.c
+++ b/e2fsck/pass1.c
@@ -221,12 +221,37 @@ int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino,
if (len == fs->blocksize)
return 0;
} else {
- if (inode->i_size >= sizeof(inode->i_block))
- return 0;
+ if (inode->i_flags & EXT4_INLINE_DATA_FL) {
+ struct ext2_inode_large *large_inode;
+ struct inline_data idata;
+ void *inline_start;
+ int inline_data_size;
+ errcode_t retval;
+
+ inline_data_size = ext2fs_inline_data_size(fs, ino);
+ if (inode->i_size != inline_data_size)
+ return 0;
- len = strnlen((char *)inode->i_block, sizeof(inode->i_block));
- if (len == sizeof(inode->i_block))
- return 0;
+ large_inode = (struct ext2_inode_large *)inode;
+
+ ext2fs_iget_extra_inode(fs, large_inode, &idata);
+ if (idata.inline_off == EXT4_MIN_INLINE_DATA_SIZE)
+ return 0;
+ inline_start = ext2fs_get_inline_xattr_pos(large_inode,
+ &idata);
+ len = strnlen((char *)inline_start,
+ idata.inline_size - EXT4_MIN_INLINE_DATA_SIZE);
+ if (len != idata.inline_size - EXT4_MIN_INLINE_DATA_SIZE)
+ return 0;
+ len += EXT4_MIN_INLINE_DATA_SIZE;
+ } else {
+ if (inode->i_size >= sizeof(inode->i_block))
+ return 0;
+
+ len = strnlen((char *)inode->i_block, sizeof(inode->i_block));
+ if (len == sizeof(inode->i_block))
+ return 0;
+ }
}
if (len != inode->i_size)
return 0;
@@ -304,6 +329,14 @@ static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx)
goto fix;
}
+ /*
+ * not do the following checks for inline_data because
+ * other checks ensure that the content of inline data
+ * is correct.
+ */
+ if (strncmp(EXT2_EXT_ATTR_NAME(entry), "data", 4) == 0)
+ goto next;
+
/* attribute len eats this space */
remain -= EXT2_EXT_ATTR_SIZE(entry->e_name_len);
@@ -331,6 +364,7 @@ static void check_ea_in_inode(e2fsck_t ctx, struct problem_context *pctx)
goto fix;
}
+next:
remain -= entry->e_value_size;
entry = EXT2_EXT_ATTR_NEXT(entry);
@@ -1203,7 +1237,8 @@ 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])
@@ -1212,6 +1247,7 @@ 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] ||
@@ -2089,6 +2125,22 @@ 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);
+ if (pctx->errcode) {
+ pctx->blk = 0;
+ pctx->num = 0;
+ fix_problem(ctx, PR_1_ADD_DBLOCK, pctx);
+ /* Should never get here */
+ ctx->flags |= E2F_FLAG_ABORT;
+ }
+ }
+}
+
/*
* This subroutine is called on each inode to account for all of the
* blocks used by that inode.
@@ -2103,6 +2155,7 @@ 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;
@@ -2126,6 +2179,8 @@ 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_INLINE_DATA);
if (inode->i_flags & EXT2_COMPRBLK_FL) {
if (fs->super->s_feature_incompat &
@@ -2149,6 +2204,8 @@ 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,
@@ -2191,7 +2248,8 @@ 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--;
@@ -2217,7 +2275,9 @@ 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/pass1b.c b/e2fsck/pass1b.c
index 05cbd10..6918fcc 100644
--- a/e2fsck/pass1b.c
+++ b/e2fsck/pass1b.c
@@ -315,8 +315,9 @@ static void pass1b(e2fsck_t ctx, char *block_buf)
pb.inode = &inode;
pb.cur_cluster = ~0;
- if (ext2fs_inode_has_valid_blocks2(fs, &inode) ||
- (ino == EXT2_BAD_INO))
+ if ((ext2fs_inode_has_valid_blocks2(fs, &inode) ||
+ (ino == EXT2_BAD_INO)) &&
+ !(inode.i_flags & EXT4_INLINE_DATA_FL))
pctx.errcode = ext2fs_block_iterate3(fs, ino,
BLOCK_FLAG_READ_ONLY, block_buf,
process_pass1b_block, &pb);
diff --git a/lib/ext2fs/dblist_dir.c b/lib/ext2fs/dblist_dir.c
index d4d5111..cc54d7a 100644
--- a/lib/ext2fs/dblist_dir.c
+++ b/lib/ext2fs/dblist_dir.c
@@ -72,8 +72,12 @@ static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry2 *db_info,
ctx->dir = db_info->ino;
ctx->errcode = 0;
- ret = ext2fs_process_dir_block(fs, &db_info->blk,
- db_info->blockcnt, 0, 0, priv_data);
+ if (ext2fs_has_inline_data(fs, ctx->dir))
+ ret = ext2fs_inline_data_iterate2(fs, ctx->dir, 0, NULL,
+ ctx->func, ctx->priv_data);
+ else
+ ret = ext2fs_process_dir_block(fs, &db_info->blk,
+ db_info->blockcnt, 0, 0, priv_data);
if ((ret & BLOCK_ABORT) && !ctx->errcode)
return DBLIST_ABORT;
return 0;
--
1.7.4.1
--
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