On 4/14/20 2:56 PM, Greg Kroah-Hartman wrote:
On Tue, Apr 14, 2020 at 02:43:00PM +0200, Emanuele Giuseppe Esposito wrote:
A bunch of code is duplicated between debugfs and tracefs, unify it to the
simplefs library.
The code is very similar, except that dentry and inode creation are unified
into a single function (unlike start_creating in debugfs and tracefs, which
only takes care of dentries). This adds an output parameter to the creation
functions, but pushes all error recovery into fs/simplefs.c.
Signed-off-by: Emanuele Giuseppe Esposito <eesposit@xxxxxxxxxx>
---
fs/simplefs.c | 150 +++++++++++++++++++++++++++++++++++++++
include/linux/simplefs.h | 19 +++++
2 files changed, 169 insertions(+)
What's wrong with libfs, isn't that supposed to be for these types of
"common" filesystem interactions?
Why create a whole "new" fs for this?
I assume you meant a new file. These new functions are used only by a
few filesystems, and I didn't want to include them in vmlinux
unconditionally, so I introduced simplefs.c and CONFIG_SIMPLEFS instead
of extending libfs.c. In this way only fs that need this code like
debugfs and tracefs will load it.
Thank you,
Emanuele
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