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VFS_MOUNT(9)	      DragonFly Kernel Developer's Manual	  VFS_MOUNT(9)


VFS_MOUNT -- mount a filesystem


#include <sys/param.h> #include <sys/mount.h> #include <sys/vnode.h> int VFS_MOUNT(struct mount *mp, char *path, caddr_t data, struct ucred *cred);


Mount a filesystem into the system's namespace. Its arguments are: mp Structure representing the filesystem. path Pathname where the filesystem is being mounted. data Filesystem specific data. This should be read into the kernel using copyin(9). cred Pointer to a struct ucred for user credentials checking. This is called both to mount new filesystems and to change the attributes of an existing filesystem. If the MNT_UPDATE flag is set in mp->mnt_flag then the filesystem should update its internal state from the value of mp->mnt_flag. This can be used, for instance, to convert a read-only filesystem to read-write. It is also used by mountd(8) to update the NFS export information for the filesystem. If the MNT_UPDATE flag is not specified, then this is a newly mounted filesystem. The filesystem code should allocate and initialize any pri- vate data needed to represent the filesystem (it can use the mp->mnt_data field to store this information).


VFS(9), vnode(9)


This man page was written by Doug Rabson. DragonFly 4.3 December 16, 2012 DragonFly 4.3