Regarding Filesystem Handler Table Functions

Bharath Suri bharath.s.jois at gmail.com
Thu May 13 13:53:04 UTC 2010


Hi,

I am right now facing some difficulty wrt Filesystem Handler functions.

Following is the setup.

/imfs exists, /tmp/test exists

A filesystem is mounted at /imfs, with the
rtems_filesystem_operations_table argument mostly same as IMFS_ops,
except that the evalformake_h = NULL and rename_h = NULL.

/imfs/test is created.

When node info ( rtems_filesystem_location_info_t) of /tmp/test is
seen, mt_entry is that of the root file system and ops is the IMFS_ops
(OK)
When node info ( rtems_filesystem_location_info_t) of /imfs/test is
seen, mt_entry is that of the new file system mounted, but ops is
IMFS_ops, instead of the modified one.

I am assuming that the ops should be the modified one, which was
provided during the mount.

Mount operation was performed in the below manner:

rtems_filesystem_operations_table  IMFS_ops_no_evalformake = IMFS_ops;
IMFS_ops_no_evalformake.evalformake_h = NULL;
mount(&mt_entry, &IMFS_ops_no_evalformake,
RTEMS_FILESYSTEM_READ_WRITE, NULL, "/imfs");

Please let me know if the assumption is wrong or about any mistakes in
the procedure I am following.

/Bharath



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