RE: Linux VFS and inode numbers in the inode list

["Aboo Valappil" <aboo@xxxxxxxx>]

 Hi,
 
 Please help me with this question.
 
I was working with Certain NFS server implimentations which returns 
 64bit fileids. Linux seems to be converting these 64 bit 
file ids to 
 32bit inode numbers before storing it in the inode table (Inode 
 information is filled by lookup inode operation, which calls 
 nfs_lookup, which then calls nfs_fhget).
 
 Because of this converstion from 64 bit to 32 bit, there could be 
 duplicate inode numbers in VFS inode list ( Do not doubt it, I have 
 seen it practically and bit difficult to explain, but it happens).
 
 Will the system run in to some issues if there is duplicate inode 
 numbers ?.
 
 As far as I know, all the access to inode list is through dentry 
cache. So it should not be a problem, I guess. Is there any kernel 
functions which purely works with inode numbers to locate the inode 
 details from the inode list ?
 
 Any ideas ?
 
 Thanks
 
 Aboo
 

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