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e2fsprogs/filefrag: print shared extent flag

PATCH Applied Mark Fasheh 2 participants 2 messages Apr 17, 2014 – Apr 27, 2014

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PATCH 1/1 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).

---
 lib/ext2fs/fiemap.h | 2 ++
 misc/filefrag.c     | 2 ++
 2 files changed, 4 insertions(+)
lib/ext2fs/fiemap.h +2 -0
index 30bf555..895cd0b 100644
@@ -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 */
misc/filefrag.c +2 -0
index a050a22..929a33b 100644
@@ -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,");
Signature · 1 line
1.8.4
#1 lore raw
Quoted 4 lines · Mark Fasheh

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).

Thanks, applied.

- Ted