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authorMiklos Szeredi <miklos@szeredi.hu>2005-11-07 00:59:49 -0800
committerLinus Torvalds <torvalds@g5.osdl.org>2005-11-07 07:53:42 -0800
commitcc4e69dee4a080f6eae3f410daec2593f4fa6f00 (patch)
treeb9be8984a0be5f7997d836603963dcf8f2e728ff /include
parent481bed454247538e9f57d4ea37b153ccba24ba7b (diff)
downloadop-kernel-dev-cc4e69dee4a080f6eae3f410daec2593f4fa6f00.zip
op-kernel-dev-cc4e69dee4a080f6eae3f410daec2593f4fa6f00.tar.gz
[PATCH] VFS: pass file pointer to filesystem from ftruncate()
This patch extends the iattr structure with a file pointer memeber, and adds an ATTR_FILE validity flag for this member. This is set if do_truncate() is invoked from ftruncate() or from do_coredump(). The change is source and binary compatible. Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/fs.h10
1 files changed, 9 insertions, 1 deletions
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 6d62267..0c89fc9 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -264,6 +264,7 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
#define ATTR_ATTR_FLAG 1024
#define ATTR_KILL_SUID 2048
#define ATTR_KILL_SGID 4096
+#define ATTR_FILE 8192
/*
* This is the Inode Attributes structure, used for notify_change(). It
@@ -283,6 +284,13 @@ struct iattr {
struct timespec ia_atime;
struct timespec ia_mtime;
struct timespec ia_ctime;
+
+ /*
+ * Not an attribute, but an auxilary info for filesystems wanting to
+ * implement an ftruncate() like method. NOTE: filesystem should
+ * check for (ia_valid & ATTR_FILE), and not for (ia_file != NULL).
+ */
+ struct file *ia_file;
};
/*
@@ -1288,7 +1296,7 @@ static inline int break_lease(struct inode *inode, unsigned int mode)
/* fs/open.c */
-extern int do_truncate(struct dentry *, loff_t start);
+extern int do_truncate(struct dentry *, loff_t start, struct file *filp);
extern long do_sys_open(const char __user *filename, int flags, int mode);
extern struct file *filp_open(const char *, int, int);
extern struct file * dentry_open(struct dentry *, struct vfsmount *, int);
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