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fiemap: Add new extent flag FIEMAP_EXTENT_SHARED

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Some filesystems may allow multiple files to point to a particular
extent.  This patch adds flag FIEMAP_EXTENT_SHARED to denote extents
that are shared with other inodes.

Signed-off-by: Sunil Mushran <sunil.mushran@oracle.com>
Acked-by: Mark Fasheh <mfasheh@suse.com>
Signed-off-by: Joel Becker <joel.becker@oracle.com>
This commit is contained in:
Sunil Mushran 2009-12-03 12:46:51 -08:00 committed by Joel Becker
parent 9365454016
commit 8c0414cd52
1 changed files with 2 additions and 0 deletions
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2
include/linux/fiemap.h
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@ -62,5 +62,7 @@ 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 */