Messages in this thread | | | Date | Fri, 21 Sep 2007 12:44:00 -0600 | From | Andreas Dilger <> | Subject | Re: [patch 3/5] VFS: pass open file to ->xattr() |
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On Sep 21, 2007 16:59 +0200, Miklos Szeredi wrote: > What I'm saying is that read and write are _no_more_ related to the > file than fstat. Read/write operate on inode data, fstat operates on > inode metadata.
The read and write operations are DEFINITELY related to the file descriptor because of f_pos. Each process opening the same file can have a different f_pos so read/write will work in different locations of the file.
In contrast getattr and getxattr operate on the single inode and you don't get e.g. a different i_size or i_uid or i_gid depending on who opened a file, nor is the xattr different.
Cheers, Andreas -- Andreas Dilger Principal Software Engineer Cluster File Systems, Inc.
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