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f2fs: introduce accessor to retrieve number of dentry slots

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Simplify code by providing the accessor macro to retrieve the
number of dentry slots for a given filename length.

Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Amit Sahrawat <a.sahrawat@samsung.com>
This commit is contained in:
Namjae Jeon
2012-12-08 14:54:50 +09:00
committed by Jaegeuk Kim
parent 508198be3c
commit 457d08ee4f
2 changed files with 8 additions and 8 deletions
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include/linux/f2fs_fs.h
+3
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@@ -363,6 +363,9 @@ typedef __le32 f2fs_hash_t;
/* One directory entry slot covers 8bytes-long file name */
#define F2FS_NAME_LEN 8
#define F2FS_NAME_LEN_BITS 3
#define GET_DENTRY_SLOTS(x) ((x + F2FS_NAME_LEN - 1) >> F2FS_NAME_LEN_BITS)
/* the number of dentry in a block */
#define NR_DENTRY_IN_BLOCK 214