From: Mark Fasheh <mfasheh@suse.de>
Date: Sun, 27 Apr 2014 00:23:00 +0000 (-0400)
Subject: e2fsprogs/filefrag: print shared extent flag
X-Git-Tag: v1.42.10~34
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=bd1413d499a70be5781cfe01258ca529482e7194;p=thirdparty%2Fe2fsprogs.git

e2fsprogs/filefrag: print shared extent flag

Filefrag doesn't catch and print the shared extent flag. Add this for
users of filefrag on file systems with shared extents (such as btrfs).

Signed-off-by: Mark Fasheh <mfasheh@suse.de>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
---

diff --git a/lib/ext2fs/fiemap.h b/lib/ext2fs/fiemap.h
index 30bf55558..895cd0bac 100644
--- a/lib/ext2fs/fiemap.h
+++ b/lib/ext2fs/fiemap.h
@@ -64,5 +64,7 @@ struct fiemap {
 #define FIEMAP_EXTENT_MERGED		0x00001000 /* File does not natively
 						    * support extents. Result
 						    * merged for efficiency. */
+#define FIEMAP_EXTENT_SHARED		0x00002000 /* Space shared with other
+						    * files. */
 
 #endif /* _LINUX_FIEMAP_H */
diff --git a/misc/filefrag.c b/misc/filefrag.c
index a050a226b..929a33bcf 100644
--- a/misc/filefrag.c
+++ b/misc/filefrag.c
@@ -165,6 +165,8 @@ static void print_extent_info(struct fiemap_extent *fm_extent, int cur_ex,
 		strcat(flags, "unwritten,");
 	if (fm_extent->fe_flags & FIEMAP_EXTENT_MERGED)
 		strcat(flags, "merged,");
+	if (fm_extent->fe_flags & FIEMAP_EXTENT_SHARED)
+		strcat(flags, "shared,");
 
 	if (fm_extent->fe_logical + fm_extent->fe_length >= (__u64) st->st_size)
 		strcat(flags, "eof,");