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authorJeff Garzik <jgarzik@pobox.com>2006-01-27 02:26:46 -0500
committerJeff Garzik <jgarzik@pobox.com>2006-01-27 02:26:46 -0500
commit8dd2e3bd57c3b389febba1de6b10372ef507f985 (patch)
tree1fdb120ec9c0c81f8f2a9452ae6c225d68aed5e3 /include/linux/ata.h
parent2af5920b81a4cd0a22d40b6b2c38356d3df03e13 (diff)
parent71e834f563799e09c6bd7d6638993b464fac26f5 (diff)
downloadop-kernel-dev-8dd2e3bd57c3b389febba1de6b10372ef507f985.zip
op-kernel-dev-8dd2e3bd57c3b389febba1de6b10372ef507f985.tar.gz
Merge branch 'tmp'
Diffstat (limited to 'include/linux/ata.h')
-rw-r--r--include/linux/ata.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/include/linux/ata.h b/include/linux/ata.h
index 29fa99b..8e88efc 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -313,4 +313,16 @@ static inline int ata_ok(u8 status)
== ATA_DRDY);
}
+static inline int lba_28_ok(u64 block, u32 n_block)
+{
+ /* check the ending block number */
+ return ((block + n_block - 1) < ((u64)1 << 28)) && (n_block <= 256);
+}
+
+static inline int lba_48_ok(u64 block, u32 n_block)
+{
+ /* check the ending block number */
+ return ((block + n_block - 1) < ((u64)1 << 48)) && (n_block <= 65536);
+}
+
#endif /* __LINUX_ATA_H__ */
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