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Message-Id: <1375436989-18948-3-git-send-email-wenqing.lz@taobao.com> Date: Fri, 2 Aug 2013 17:49:29 +0800 From: Zheng Liu <gnehzuil.liu@...il.com> To: linux-ext4@...r.kernel.org Cc: Theodore Ts'o <tytso@....edu>, Zheng Liu <wenqing.lz@...bao.com> Subject: [PATCH v1 02/22] libext2fs: add function to check inline_data flag for an inode From: Zheng Liu <wenqing.lz@...bao.com> A new file called `inline_data.c' is created, and a function called `ext2fs_inode_has_inline_data' is defined to check whether an inode has inline data or not. Signed-off-by: Theodore Ts'o <tytso@....edu> Signed-off-by: Zheng Liu <wenqing.lz@...bao.com> --- lib/ext2fs/Makefile.in | 8 ++++++++ lib/ext2fs/Makefile.pq | 1 + lib/ext2fs/ext2fs.h | 3 +++ lib/ext2fs/inline_data.c | 31 +++++++++++++++++++++++++++++++ 4 files changed, 43 insertions(+) create mode 100644 lib/ext2fs/inline_data.c diff --git a/lib/ext2fs/Makefile.in b/lib/ext2fs/Makefile.in index dc7b0d1..001c222 100644 --- a/lib/ext2fs/Makefile.in +++ b/lib/ext2fs/Makefile.in @@ -59,6 +59,7 @@ OBJS= $(DEBUGFS_LIB_OBJS) $(RESIZE_LIB_OBJS) $(E2IMAGE_LIB_OBJS) \ ind_block.o \ initialize.o \ inline.o \ + inline_data.o \ inode.o \ io_manager.o \ ismounted.o \ @@ -133,6 +134,7 @@ SRCS= ext2_err.c \ $(srcdir)/ind_block.c \ $(srcdir)/initialize.c \ $(srcdir)/inline.c \ + $(srcdir)/inline_data.c \ $(srcdir)/inode.c \ $(srcdir)/inode_io.c \ $(srcdir)/imager.c \ @@ -757,6 +759,12 @@ inline.o: $(srcdir)/inline.c $(top_builddir)/lib/config.h \ $(srcdir)/ext2_fs.h $(srcdir)/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \ $(srcdir)/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \ $(srcdir)/ext2_ext_attr.h $(srcdir)/bitops.h +inline_data.o: $(srcdir)/inline_data.c $(top_builddir)/lib/config.h \ + $(top_builddir)/lib/dirpaths.h $(srcdir)/ext2_fs.h \ + $(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2fs.h \ + $(srcdir)/ext2_fs.h $(srcdir)/ext3_extents.h $(top_srcdir)/lib/et/com_err.h \ + $(srcdir)/ext2_io.h $(top_builddir)/lib/ext2fs/ext2_err.h \ + $(srcdir)/ext2_ext_attr.h $(srcdir)/bitops.h inode.o: $(srcdir)/inode.c $(top_builddir)/lib/config.h \ $(top_builddir)/lib/dirpaths.h $(srcdir)/ext2_fs.h \ $(top_builddir)/lib/ext2fs/ext2_types.h $(srcdir)/ext2fsP.h \ diff --git a/lib/ext2fs/Makefile.pq b/lib/ext2fs/Makefile.pq index 2f7b654..89082a7 100644 --- a/lib/ext2fs/Makefile.pq +++ b/lib/ext2fs/Makefile.pq @@ -27,6 +27,7 @@ OBJS= alloc.obj \ icount.obj \ initialize.obj \ inline.obj \ + inline_data.obj \ inode.obj \ ismounted.obj \ link.obj \ diff --git a/lib/ext2fs/ext2fs.h b/lib/ext2fs/ext2fs.h index 100270c..3346c00 100644 --- a/lib/ext2fs/ext2fs.h +++ b/lib/ext2fs/ext2fs.h @@ -1333,6 +1333,9 @@ errcode_t ext2fs_icount_validate(ext2_icount_t icount, FILE *); extern errcode_t ext2fs_get_memalign(unsigned long size, unsigned long align, void *ptr); +/* inline_data.c */ +extern int ext2fs_inode_has_inline_data(ext2_filsys fs, ext2_ino_t ino); + /* inode.c */ extern void ext2fs_free_inode_cache(struct ext2_inode_cache *icache); extern errcode_t ext2fs_flush_icache(ext2_filsys fs); diff --git a/lib/ext2fs/inline_data.c b/lib/ext2fs/inline_data.c new file mode 100644 index 0000000..fcf82b5 --- /dev/null +++ b/lib/ext2fs/inline_data.c @@ -0,0 +1,31 @@ +/* + * inline_data.c --- data in inode + * + * Copyright (C) 2012 Zheng Liu <wenqing.lz@...bao.com> + * + * %Begin-Header% + * This file may be redistributed under the terms of the GNU library + * General Public License, version 2. + * %End-Header% + */ + +#include "config.h" +#include <stdio.h> +#include <time.h> + +#include "ext2_fs.h" + +#include "ext2fs.h" +#include "ext2fsP.h" + +int ext2fs_inode_has_inline_data(ext2_filsys fs, ext2_ino_t ino) +{ + struct ext2_inode inode; + errcode_t retval; + + retval = ext2fs_read_inode(fs, ino, &inode); + if (retval) + return 0; + + return (inode.i_flags & EXT4_INLINE_DATA_FL); +} -- 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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