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proc_fops: convert drivers/isdn/ to seq_file

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Convert code away from ->read_proc/->write_proc interfaces.  Switch to
proc_create()/proc_create_data() which make addition of proc entries
reliable wrt NULL ->proc_fops, NULL ->data and so on.

Problem with ->read_proc et al is described here commit
786d7e1612 "Fix rmmod/read/write races in
/proc entries"

[[email protected]: CONFIG_PROC_FS=n build fix]
Signed-off-by: Alexey Dobriyan <[email protected]>
Signed-off-by: Tilman Schmidt <[email protected]>
Signed-off-by: Karsten Keil <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
This commit is contained in:
Alexey Dobriyan 2010-01-14 03:10:54 -08:00 • committed by David S. Miller
commit 9a58a80a70
21 changed files with 411 additions and 458 deletions
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9
Documentation/isdn/INTERFACE.CAPI
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@ -149,10 +149,11 @@ char *(*procinfo)(struct capi_ctr *ctrlr)
pointer to a callback function returning the entry for the device in
the CAPI controller info table, /proc/capi/controller
read_proc_t *ctr_read_proc
pointer to the read_proc callback function for the device's proc file
system entry, /proc/capi/controllers/<n>; will be called with a
pointer to the device's capi_ctr structure as the last (data) argument
const struct file_operations *proc_fops
pointers to callback functions for the device's proc file
system entry, /proc/capi/controllers/<n>; pointer to the device's
capi_ctr structure is available from struct proc_dir_entry::data
which is available from struct inode.
Note: Callback functions except send_message() are never called in interrupt
context.