>From userspace? Something like:
grep " debugfs " /proc/mounts | awk '{print $2}' | xargs echo -e
>From kernel space? There isn't guaranteed to be _one_, you can mount
multiple instances of most filesystems, and with container support you can
even have multiple debugfs superblocks.
Rob
On
From userspace? Something like:
grep debugfs /proc/mounts | awk '{print $2}' | xargs echo -e
From kernel space? There isn't guaranteed to be _one_, you can mount
multiple instances of most filesystems, and with container support you can
even have multiple debugfs superblocks.
Rob
On Fri,
On Fri, Sep 14, 2012 at 07:17:12PM -0700, Jacob Sowles wrote:
> The first instance of my code calls debugfs_create_file and stores a
> pointer to the dentry of that directory. But when the second instance
> calls debugfs_create_file, the function returns NULL because that
> directory already
debugfs_create_dir, rather. Not debugfs_create_file.
On Fri, Sep 14, 2012 at 7:17 PM, Jacob Sowles wrote:
> The first instance of my code calls debugfs_create_file and stores a
> pointer to the dentry of that directory. But when the second instance
> calls debugfs_create_file, the function
The first instance of my code calls debugfs_create_file and stores a
pointer to the dentry of that directory. But when the second instance
calls debugfs_create_file, the function returns NULL because that
directory already exists, so it doesn't return the dentry that I need.
On Fri, Sep 14, 2012
On Fri, Sep 14, 2012 at 07:07:43PM -0700, Jacob Sowles wrote:
> Multiple instances of my code can be run simultaneously, and all
> instances use the same debugfs directory, so I need the path to the
> debugfs root directory so that I can use filp_open to get the dentry
> for that directory.
Multiple instances of my code can be run simultaneously, and all
instances use the same debugfs directory, so I need the path to the
debugfs root directory so that I can use filp_open to get the dentry
for that directory.
Jacob
On Fri, Sep 14, 2012 at 6:57 PM, Al Viro wrote:
> On Fri, Sep 14,
On Fri, Sep 14, 2012 at 06:49:01PM -0700, Jacob Sowles wrote:
> Is there an easy way to get the path to where debugfs is mounted? I
> found a function called debugfs_find_mountpoint(), which is exactly
> what I want, but it’s not exported, so I can’t use it. The only
> exported debugfs functions
Is there an easy way to get the path to where debugfs is mounted? I
found a function called debugfs_find_mountpoint(), which is exactly
what I want, but it’s not exported, so I can’t use it. The only
exported debugfs functions that I could find are the ones that create,
remove, etc.
Jacob
--
To
Is there an easy way to get the path to where debugfs is mounted? I
found a function called debugfs_find_mountpoint(), which is exactly
what I want, but it’s not exported, so I can’t use it. The only
exported debugfs functions that I could find are the ones that create,
remove, etc.
Jacob
--
To
On Fri, Sep 14, 2012 at 06:49:01PM -0700, Jacob Sowles wrote:
Is there an easy way to get the path to where debugfs is mounted? I
found a function called debugfs_find_mountpoint(), which is exactly
what I want, but it’s not exported, so I can’t use it. The only
exported debugfs functions that
Multiple instances of my code can be run simultaneously, and all
instances use the same debugfs directory, so I need the path to the
debugfs root directory so that I can use filp_open to get the dentry
for that directory.
Jacob
On Fri, Sep 14, 2012 at 6:57 PM, Al Viro v...@zeniv.linux.org.uk
On Fri, Sep 14, 2012 at 07:07:43PM -0700, Jacob Sowles wrote:
Multiple instances of my code can be run simultaneously, and all
instances use the same debugfs directory, so I need the path to the
debugfs root directory so that I can use filp_open to get the dentry
for that directory.
What's
The first instance of my code calls debugfs_create_file and stores a
pointer to the dentry of that directory. But when the second instance
calls debugfs_create_file, the function returns NULL because that
directory already exists, so it doesn't return the dentry that I need.
On Fri, Sep 14, 2012
debugfs_create_dir, rather. Not debugfs_create_file.
On Fri, Sep 14, 2012 at 7:17 PM, Jacob Sowles sowl...@gmail.com wrote:
The first instance of my code calls debugfs_create_file and stores a
pointer to the dentry of that directory. But when the second instance
calls debugfs_create_file, the
On Fri, Sep 14, 2012 at 07:17:12PM -0700, Jacob Sowles wrote:
The first instance of my code calls debugfs_create_file and stores a
pointer to the dentry of that directory. But when the second instance
calls debugfs_create_file, the function returns NULL because that
directory already exists,
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