linux-toradex.git/fs/reiserfs/procfs.c, branch v4.4.17

fs/reiserfs: use linux/uaccess.h

2014-08-08T22:57:21+00:00

Fix checkpatch warning

  WARNING: Use #include  instead of 

Signed-off-by: Fabian Frederick 
Cc: Jeff Mahoney 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

kill reiserfs_bdevname()

2014-01-25T08:14:06+00:00

it's never called with NULL argument...

Signed-off-by: Al Viro

reiserfs: fix deadlock in umount

2013-08-05T13:37:37+00:00

Since remove_proc_entry() started to wait for IO in progress (i.e.
since 2007 or so), the locking in fs/reiserfs/proc.c became wrong;
if procfs read happens between the moment when umount() locks the
victim superblock and removal of /proc/fs/reiserfs//*,
we'll get a deadlock - read will wait for s_umount (in sget(),
called by r_start()), while umount will wait in remove_proc_entry()
for that read to finish, holding s_umount all along.

Fortunately, the same change allows a much simpler race avoidance -
all we need to do is remove the procfs entries in the very beginning
of reiserfs ->kill_sb(); that'll guarantee that pointer to superblock
will remain valid for the duration for procfs IO, so we don't need
sget() to keep the sucker alive.  As the matter of fact, we can
get rid of the home-grown iterator completely, and use single_open()
instead.

Signed-off-by: Al Viro

reiserfs: Don't access the proc_dir_entry in r_open(), r_start() r_show()

2013-05-01T21:29:43+00:00

Don't access the proc_dir_entry in ReiserFS's r_open(), r_start() r_show()
procfs interface functions.

ReiserFS stores the ->show() method pointer in PDE->data and the super_block
pointer in PDE->parent->data.  This isn't changing.

Currently, ReiserFS passes the PDE pointer into seq_file::private from
r_open() so that r_start() and r_show() can then access it.  Instead, use
seq_open_private() to allocate a two-pointer struct that's passed through
seq_file::private and put the ->show() method and the sb pointers in there.

Signed-off-by: David Howells 
cc: reiserfs-devel@vger.kernel.org
Signed-off-by: Al Viro

proc: Add proc_mkdir_data()

2013-05-01T21:29:41+00:00

Add proc_mkdir_data() to allow procfs directories to be created that are
annotated at the time of creation with private data rather than doing this
post-creation.  This means no access is then required to the proc_dir_entry
struct to set this.

Signed-off-by: David Howells 
Acked-by: Mauro Carvalho Chehab 
Acked-by: Greg Kroah-Hartman 
cc: Neela Syam Kolli 
cc: Jerry Chuang 
cc: linux-scsi@vger.kernel.org
cc: devel@driverdev.osuosl.org
cc: linux-wireless@vger.kernel.org
Signed-off-by: Al Viro

reiserfs: use proc_remove_subtree()

2013-04-09T18:13:12+00:00

Signed-off-by: Al Viro

new helper: file_inode(file)

2013-02-23T04:31:31+00:00

Signed-off-by: Al Viro

VFS: Pass mount flags to sget()

2012-07-14T12:38:34+00:00

Pass mount flags to sget() so that it can use them in initialising a new
superblock before the set function is called.  They could also be passed to the
compare function.

Signed-off-by: David Howells 
Signed-off-by: Al Viro

move private bits of reiserfs_fs.h to fs/reiserfs/reiserfs.h

2012-03-21T01:29:43+00:00

Signed-off-by: Al Viro

kill pointless includes of reiserfs_fs_{i,sb}.h

2012-03-21T01:29:43+00:00

Signed-off-by: Al Viro