Subject: + nilfs2-add-struct-nilfs_suinfo_update-and-flags.patch added to -mm tree
To: andreas.rohner@xxxxxxx,konishi.ryusuke@xxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Mon, 03 Feb 2014 13:41:13 -0800
The patch titled
Subject: nilfs2: add struct nilfs_suinfo_update and flags
has been added to the -mm tree. Its filename is
nilfs2-add-struct-nilfs_suinfo_update-and-flags.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/nilfs2-add-struct-nilfs_suinfo_update-and-flags.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/nilfs2-add-struct-nilfs_suinfo_update-and-flags.patch
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From: Andreas Rohner <andreas.rohner@xxxxxxx>
Subject: nilfs2: add struct nilfs_suinfo_update and flags
Add the nilfs_suinfo_update structure, which contains the information
needed to update one segment usage entry. The flags specify, which fields
need to be updated.
Signed-off-by: Andreas Rohner <andreas.rohner@xxxxxxx>
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
include/linux/nilfs2_fs.h | 42 ++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff -puN include/linux/nilfs2_fs.h~nilfs2-add-struct-nilfs_suinfo_update-and-flags include/linux/nilfs2_fs.h
--- a/include/linux/nilfs2_fs.h~nilfs2-add-struct-nilfs_suinfo_update-and-flags
+++ a/include/linux/nilfs2_fs.h
@@ -710,6 +710,48 @@ static inline int nilfs_suinfo_clean(con
}
/* ioctl */
+/**
+ * nilfs_suinfo_update - segment usage information update
+ * @sup_segnum: segment number
+ * @sup_flags: flags for which fields are active in sup_sui
+ * @sup_reserved: reserved necessary for alignment
+ * @sup_sui: segment usage information
+ */
+struct nilfs_suinfo_update {
+ __u64 sup_segnum;
+ __u32 sup_flags;
+ __u32 sup_reserved;
+ struct nilfs_suinfo sup_sui;
+};
+
+enum {
+ NILFS_SUINFO_UPDATE_LASTMOD,
+ NILFS_SUINFO_UPDATE_NBLOCKS,
+ NILFS_SUINFO_UPDATE_FLAGS,
+ __NR_NILFS_SUINFO_UPDATE_FIELDS,
+};
+
+#define NILFS_SUINFO_UPDATE_FNS(flag, name) \
+static inline void \
+nilfs_suinfo_update_set_##name(struct nilfs_suinfo_update *sup) \
+{ \
+ sup->sup_flags |= 1UL << NILFS_SUINFO_UPDATE_##flag; \
+} \
+static inline void \
+nilfs_suinfo_update_clear_##name(struct nilfs_suinfo_update *sup) \
+{ \
+ sup->sup_flags &= ~(1UL << NILFS_SUINFO_UPDATE_##flag); \
+} \
+static inline int \
+nilfs_suinfo_update_##name(const struct nilfs_suinfo_update *sup) \
+{ \
+ return !!(sup->sup_flags & (1UL << NILFS_SUINFO_UPDATE_##flag));\
+}
+
+NILFS_SUINFO_UPDATE_FNS(LASTMOD, lastmod)
+NILFS_SUINFO_UPDATE_FNS(NBLOCKS, nblocks)
+NILFS_SUINFO_UPDATE_FNS(FLAGS, flags)
+
enum {
NILFS_CHECKPOINT,
NILFS_SNAPSHOT,
_
Patches currently in -mm which might be from andreas.rohner@xxxxxxx are
nilfs2-add-struct-nilfs_suinfo_update-and-flags.patch
nilfs2-add-nilfs_sufile_set_suinfo-to-update-segment-usage.patch
nilfs2-implementation-of-nilfs_ioctl_set_suinfo-ioctl.patch
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