linux-toradex.git/fs, branch v3.14.53

hpfs: update ctime and mtime on directory modification

2015-09-21T17:02:21+00:00

commit f49a26e7718dd30b49e3541e3e25aecf5e7294e2 upstream.

Update ctime and mtime when a directory is modified. (though OS/2 doesn't
update them anyway)

Signed-off-by: Mikulas Patocka 
Signed-off-by: Linus Torvalds 
Signed-off-by: Greg Kroah-Hartman

path_openat(): fix double fput()

2015-08-17T03:51:54+00:00

commit f15133df088ecadd141ea1907f2c96df67c729f0 upstream.

path_openat() jumps to the wrong place after do_tmpfile() - it has
already done path_cleanup() (as part of path_lookupat() called by
do_tmpfile()), so doing that again can lead to double fput().

Signed-off-by: Al Viro 
Signed-off-by: Greg Kroah-Hartman

dcache: don't need rcu in shrink_dentry_list()

2015-08-17T03:51:54+00:00

commit 60942f2f235ce7b817166cdf355eed729094834d upstream.

Since now the shrink list is private and nobody can free the dentry while
it is on the shrink list, we can remove RCU protection from this.

Signed-off-by: Miklos Szeredi 
Signed-off-by: Al Viro 
Cc: "Nicholas A. Bellinger" 
Signed-off-by: Greg Kroah-Hartman

more graceful recovery in umount_collect()

2015-08-17T03:51:53+00:00

commit 9c8c10e262e0f62cb2530f1b076de979123183dd upstream.

Start with shrink_dcache_parent(), then scan what remains.

First of all, BUG() is very much an overkill here; we are holding
->s_umount, and hitting BUG() means that a lot of interesting stuff
will be hanging after that point (sync(2), for example).  Moreover,
in cases when there had been more than one leak, we'll be better
off reporting all of them.  And more than just the last component
of pathname - %pd is there for just such uses...

That was the last user of dentry_lru_del(), so kill it off...

Signed-off-by: Al Viro 
Cc: "Nicholas A. Bellinger" 
Signed-off-by: Greg Kroah-Hartman

don't remove from shrink list in select_collect()

2015-08-17T03:51:53+00:00

commit fe91522a7ba82ca1a51b07e19954b3825e4aaa22 upstream.

	If we find something already on a shrink list, just increment
data->found and do nothing else.  Loops in shrink_dcache_parent() and
check_submounts_and_drop() will do the right thing - everything we
did put into our list will be evicted and if there had been nothing,
but data->found got non-zero, well, we have somebody else shrinking
those guys; just try again.

Signed-off-by: Al Viro 
Cc: "Nicholas A. Bellinger" 
Signed-off-by: Greg Kroah-Hartman

dentry_kill(): don't try to remove from shrink list

2015-08-17T03:51:53+00:00

commit 41edf278fc2f042f4e22a12ed87d19c5201210e1 upstream.

If the victim in on the shrink list, don't remove it from there.
If shrink_dentry_list() manages to remove it from the list before
we are done - fine, we'll just free it as usual.  If not - mark
it with new flag (DCACHE_MAY_FREE) and leave it there.

Eventually, shrink_dentry_list() will get to it, remove the sucker
from shrink list and call dentry_kill(dentry, 0).  Which is where
we'll deal with freeing.

Since now dentry_kill(dentry, 0) may happen after or during
dentry_kill(dentry, 1), we need to recognize that (by seeing
DCACHE_DENTRY_KILLED already set), unlock everything
and either free the sucker (in case DCACHE_MAY_FREE has been
set) or leave it for ongoing dentry_kill(dentry, 1) to deal with.

Signed-off-by: Al Viro 
Cc: "Nicholas A. Bellinger" 
Signed-off-by: Greg Kroah-Hartman

expand the call of dentry_lru_del() in dentry_kill()

2015-08-17T03:51:53+00:00

commit 01b6035190b024240a43ac1d8e9c6f964f5f1c63 upstream.

Signed-off-by: Al Viro 
Cc: "Nicholas A. Bellinger" 
Signed-off-by: Greg Kroah-Hartman

new helper: dentry_free()

2015-08-17T03:51:52+00:00

commit b4f0354e968f5fabd39bc85b99fedae4a97589fe upstream.

The part of old d_free() that dealt with actual freeing of dentry.
Taken out of dentry_kill() into a separate function.

Signed-off-by: Al Viro 
Cc: "Nicholas A. Bellinger" 
Signed-off-by: Greg Kroah-Hartman

fold try_prune_one_dentry()

2015-08-17T03:51:52+00:00

commit 5c47e6d0ad608987b91affbcf7d1fc12dfbe8fb4 upstream.

Signed-off-by: Al Viro 
Cc: "Nicholas A. Bellinger" 
Signed-off-by: Greg Kroah-Hartman

fold d_kill() and d_free()

2015-08-17T03:51:52+00:00

commit 03b3b889e79cdb6b806fc0ba9be0d71c186bbfaa upstream.

Signed-off-by: Al Viro 
Cc: "Nicholas A. Bellinger" 
Signed-off-by: Greg Kroah-Hartman