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Message-Id: <1386323897-2354-25-git-send-email-wenqing.lz@taobao.com> Date: Fri, 6 Dec 2013 17:58:11 +0800 From: Zheng Liu <gnehzuil.liu@...il.com> To: linux-ext4@...r.kernel.org Cc: Theodore Ts'o <tytso@....edu>, "Darrick J. Wong" <darrick.wong@...cle.com>, Zheng Liu <wenqing.lz@...bao.com> Subject: [PATCH v3 24/30] e2fsck: check inline_data in pass1 From: Zheng Liu <wenqing.lz@...bao.com> Signed-off-by: Theodore Ts'o <tytso@....edu> Signed-off-by: Zheng Liu <wenqing.lz@...bao.com> --- e2fsck/pass1.c | 62 +++++++++++++++++++++++++++++++++++++++++++---- lib/ext2fs/dblist_dir.c | 16 ++++++++++-- 2 files changed, 71 insertions(+), 7 deletions(-) diff --git a/e2fsck/pass1.c b/e2fsck/pass1.c index 56411f1..d5dca9d 100644 --- a/e2fsck/pass1.c +++ b/e2fsck/pass1.c @@ -177,7 +177,8 @@ int e2fsck_pass1_check_symlink(ext2_filsys fs, ext2_ino_t ino, struct ext2fs_extent extent; if ((inode->i_size_high || inode->i_size == 0) || - (inode->i_flags & EXT2_INDEX_FL)) + (inode->i_flags & EXT2_INDEX_FL) || + (inode->i_flags & EXT4_INLINE_DATA_FL)) return 0; if (inode->i_flags & EXT4_EXTENTS_FL) { @@ -407,6 +408,7 @@ static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx, blk64_t blk; unsigned int i, rec_len, not_device = 0; int extent_fs; + int inlinedata_fs; /* * If the mode looks OK, we believe it. If the first block in @@ -434,11 +436,23 @@ static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx, * For extent mapped files, we don't do any sanity checking: * just try to get the phys block of logical block 0 and run * with it. + * + * For inline data files, we just try to get the size of inline + * data. If it's true, we will treat it as a directory. */ extent_fs = (ctx->fs->super->s_feature_incompat & EXT3_FEATURE_INCOMPAT_EXTENTS); - if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) { + inlinedata_fs = (ctx->fs->super->s_feature_incompat & + EXT4_FEATURE_INCOMPAT_INLINE_DATA); + if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) { + unsigned int size; + + if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size)) + return; + /* device files never have a "system.data" entry */ + goto isdir; + } else if (extent_fs && (inode->i_flags & EXT4_EXTENTS_FL)) { /* extent mapped */ if (ext2fs_bmap2(ctx->fs, pctx->ino, inode, 0, 0, 0, 0, &blk)) @@ -501,6 +515,7 @@ static void check_is_really_dir(e2fsck_t ctx, struct problem_context *pctx, (rec_len % 4)) return; +isdir: if (fix_problem(ctx, PR_1_TREAT_AS_DIRECTORY, pctx)) { inode->i_mode = (inode->i_mode & 07777) | LINUX_S_IFDIR; e2fsck_write_inode_full(ctx, pctx->ino, inode, @@ -1194,7 +1209,8 @@ 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]) @@ -1203,6 +1219,7 @@ 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] || @@ -2132,6 +2149,26 @@ static void check_blocks_extents(e2fsck_t ctx, struct problem_context *pctx, } /* + * In fact we don't need to check blocks for an inode with inline data + * because this inode doesn't have any blocks. In this function all + * we need to do is add this inode into dblist when it is a directory. + */ +static void check_blocks_inline_data(e2fsck_t ctx, struct problem_context *pctx, + struct process_block_struct *pb) +{ + if (!pb->is_dir) + return; + + 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); + ctx->flags |= E2F_FLAG_ABORT; + } +} + +/* * This subroutine is called on each inode to account for all of the * blocks used by that inode. */ @@ -2145,6 +2182,7 @@ 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; @@ -2168,6 +2206,8 @@ 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 & @@ -2201,6 +2241,10 @@ static void check_blocks(e2fsck_t ctx, struct problem_context *pctx, */ pb.last_init_lblock = pb.last_block; } + } else { + /* check inline data */ + if (inlinedata_fs && (inode->i_flags & EXT4_INLINE_DATA_FL)) + check_blocks_inline_data(ctx, pctx, &pb); } end_problem_latch(ctx, PR_LATCH_BLOCK); end_problem_latch(ctx, PR_LATCH_TOOBIG); @@ -2233,7 +2277,8 @@ 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--; @@ -2259,7 +2304,14 @@ 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) { + size_t size; + + if (ext2fs_inline_data_size(ctx->fs, pctx->ino, &size)) + bad_size = 5; + if (size != inode->i_size) + bad_size = 5; + } else if (inode->i_size & (fs->blocksize - 1)) bad_size = 5; else if (nblock > (pb.last_block + 1)) bad_size = 1; diff --git a/lib/ext2fs/dblist_dir.c b/lib/ext2fs/dblist_dir.c index d4d5111..1e36584 100644 --- a/lib/ext2fs/dblist_dir.c +++ b/lib/ext2fs/dblist_dir.c @@ -65,6 +65,7 @@ errcode_t ext2fs_dblist_dir_iterate(ext2_dblist dblist, static int db_dir_proc(ext2_filsys fs, struct ext2_db_entry2 *db_info, void *priv_data) { + struct ext2_inode inode; struct dir_context *ctx; int ret; @@ -72,8 +73,19 @@ 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); + ctx->errcode = ext2fs_read_inode(fs, ctx->dir, &inode); + if (ctx->errcode) + return DBLIST_ABORT; + if (inode.i_flags & EXT4_INLINE_DATA_FL) { + ctx->flags = DIRENT_FLAG_INCLUDE_INLINE_DATA; + ext2fs_inline_data_dir_iterate(fs, ctx->dir, + ext2fs_process_dir_block, + ctx); + } 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; -- 1.7.9.7 -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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