43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
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From 6a14c51d612184f2c09c5b4148abb6afbb2e1fb0 Mon Sep 17 00:00:00 2001
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From: Mark Fasheh <mfasheh@suse.de>
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Date: Thu, 17 Apr 2014 14:31:56 -0700
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Subject: filefrag: print shared extent flag
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Filefrag doesn't catch and print the shared extent flag. Add this for
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users of filefrag on file systems with shared extents (such as btrfs).
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Signed-off-by: Mark Fasheh <mfasheh@suse.de>
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---
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lib/ext2fs/fiemap.h | 2 ++
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misc/filefrag.c | 2 ++
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2 files changed, 4 insertions(+)
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diff --git a/lib/ext2fs/fiemap.h b/lib/ext2fs/fiemap.h
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index 30bf555..895cd0b 100644
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--- a/lib/ext2fs/fiemap.h
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+++ b/lib/ext2fs/fiemap.h
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@@ -64,5 +64,7 @@ struct fiemap {
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#define FIEMAP_EXTENT_MERGED 0x00001000 /* File does not natively
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* support extents. Result
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* merged for efficiency. */
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+#define FIEMAP_EXTENT_SHARED 0x00002000 /* Space shared with other
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+ * files. */
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#endif /* _LINUX_FIEMAP_H */
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diff --git a/misc/filefrag.c b/misc/filefrag.c
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index a050a22..929a33b 100644
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--- a/misc/filefrag.c
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+++ b/misc/filefrag.c
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@@ -165,6 +165,8 @@ static void print_extent_info(struct fiemap_extent *fm_extent, int cur_ex,
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strcat(flags, "unwritten,");
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if (fm_extent->fe_flags & FIEMAP_EXTENT_MERGED)
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strcat(flags, "merged,");
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+ if (fm_extent->fe_flags & FIEMAP_EXTENT_SHARED)
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+ strcat(flags, "shared,");
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if (fm_extent->fe_logical + fm_extent->fe_length >= (__u64) st->st_size)
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strcat(flags, "eof,");
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--
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1.8.4
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