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From: yegorslists@googlemail.com
To: barebox@lists.infradead.org
Subject: [PATCH v5 2/3] linux/fs.h: add types and routines needed for SquashFS
Date: Tue,  1 Mar 2016 12:10:03 +0100	[thread overview]
Message-ID: <1456830604-8469-2-git-send-email-yegorslists@googlemail.com> (raw)
In-Reply-To: <1456830604-8469-1-git-send-email-yegorslists@googlemail.com>

From: Yegor Yefremov <yegorslists@googlemail.com>

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
---
Changes:
	v2: fix checkpatch issues

 include/linux/fs.h | 27 +++++++++++++++++++++++++++
 1 file changed, 27 insertions(+)

diff --git a/include/linux/fs.h b/include/linux/fs.h
index 7e9886a..d5b232b 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -19,6 +19,26 @@
 #endif
 
 /*
+ * File types
+ *
+ * NOTE! These match bits 12..15 of stat.st_mode
+ * (ie "(i_mode >> 12) & 15").
+ */
+#define DT_UNKNOWN	0
+#define DT_FIFO		1
+#define DT_CHR		2
+#define DT_DIR		4
+#define DT_BLK		6
+#define DT_REG		8
+#define DT_LNK		10
+#define DT_SOCK		12
+#define DT_WHT		14
+
+struct dir_context {
+	loff_t pos;
+};
+
+/*
  * These are the fs-independent mount-flags: up to 32 flags are supported
  */
 #define MS_RDONLY	 1	/* Mount read-only */
@@ -74,6 +94,7 @@ struct inode {
 	struct timespec		i_mtime;
 	struct timespec		i_ctime;
 	unsigned int		i_blkbits;
+	blkcnt_t		i_blocks;
 	unsigned short          i_bytes;
 	umode_t			i_mode;
 	spinlock_t		i_lock;	/* i_blocks, i_bytes, maybe i_size */
@@ -194,6 +215,7 @@ struct file_system_type {
 
 struct file {
 	struct path		f_path;
+	struct inode		*f_inode;	/* cached value */
 #define f_dentry	f_path.dentry
 #define f_vfsmnt	f_path.mnt
 	const struct file_operations	*f_op;
@@ -361,4 +383,9 @@ struct file {
 #define I_DIRTY (I_DIRTY_SYNC | I_DIRTY_DATASYNC | I_DIRTY_PAGES)
 #define I_DIRTY_ALL (I_DIRTY | I_DIRTY_TIME)
 
+static inline loff_t i_size_read(const struct inode *inode)
+{
+	return inode->i_size;
+}
+
 #endif /* _LINUX_FS_H */
-- 
2.1.4


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  reply	other threads:[~2016-03-01 11:11 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-01 11:10 [PATCH v5 1/3] linux/types.h: add sector_t and blkcnt_t types yegorslists
2016-03-01 11:10 ` yegorslists [this message]
2016-03-01 11:10 ` [PATCH v5 3/3] fs: add support for SquashFS 4.0 yegorslists
2016-03-01 21:11   ` Antony Pavlov
2016-03-02 18:53 ` [PATCH v5 1/3] linux/types.h: add sector_t and blkcnt_t types Sascha Hauer

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