FOLLOW_PFN(9) Memory Management in Linux FOLLOW_PFN(9)NAME
follow_pfn - look up PFN at a user virtual address
SYNOPSIS
int follow_pfn(struct vm_area_struct * vma, unsigned long address, unsigned long * pfn);
ARGUMENTS
vma
memory mapping
address
user virtual address
pfn
location to store found PFN
DESCRIPTION
Only IO mappings and raw PFN mappings are allowed.
Returns zero and the pfn at pfn on success, -ve otherwise.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 FOLLOW_PFN(9)
Check Out this Related Man Page
DPM-REGISTER(1) DPM Administrator Commands DPM-REGISTER(1)NAME
dpm-register - register external files in DPNS
SYNOPSIS
dpm-register --filesize filesize [ --user owner_user ] [ --group owner_group ] [ --mode filemode ] --pfn pfn --server hostname [ --st sta-
tus ] [ --help ] filename
DESCRIPTION
dpm-register registers a given filename with the specified permissions into DPNS:
- create the file metadata entry in DPNS (dpns_creat)
- set the ownership (dpns_chown) to owner_user : owner_group (by default the requester's DN and group)
- set the filemode (dpns_chmod) to filemode
- set the size of the file (dpns_setfsize) to filesize
- add the replica entry (dpns_addreplicax) setting
* sfn = pfn
* status to status ('O' for Online, 'N' for Nearline)
* f_type = 'P' (Permanent)
* r_type = 'P' (Primary)
EXAMPLE
dpm-register --filesize 525424 --server `hostname --fqdn`
--group biomed --pfn dicom:///1/2/3
/dpm/cern.ch/home/biomed/mdm/1/2/3
EXIT STATUS
This program returns 0 if the operation was successful or >0 if the operation failed.
SEE ALSO dpns_creat(3), dpns_chown(3), dpns_chmod(3), dpns_setfsize(3), dpns_addreplicax(3)LCG $Date: 2008/01/07 10:38:38 $ DPM-REGISTER(1)
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