[PATCH 0/7] fs: add blkdev name format specifier v2

From: Dmitry Monakhov
Date: Mon Apr 13 2015 - 08:46:01 EST

Currently in order to print block_device name one should use blkdev() helper
which requires temproral buffer of size BDEVNAME_SIZE (32bytes). This is very
ineffective because result in stack usage bloating for deep IO call traces where
stack usage is close to maximum values.

It is reasonable to introduce dedicated format specifier for block_device name,
unfortunately "%pb", "%pB", "%pd" and "%pD" are already reserved for other data types
I've pick "%pg" ala geometry. If some one want to offer sane spacifier name
please let me know.

Changes from from v1
- bdevname() now works via "%pg" format specifier (in responce to Joe's comments)

## Add format helpers and simple cleanup
lib: vsprintf add pg format specifier
fs: use gendisk disk_name where possible
## migrate subsystems to format helpers
block: use block_device name vsprintf helper
fs: use block_device name vsprintf helper
md: use block_device name vsprintf helper
block/partitions use block_device name vsprintf help v2
drivers: use block_device name vsprintf helper

To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/