Hi Linus,
Can you please pull this GIT branch? It contains a number of fixes for
various FS-Cache issues plus some cleanups. The commits are, in order:
(1) Provide a system wait_on_atomic_t() and wake_up_atomic_t() sharing the
bit-wait table (enhancement for #8).
(2) Don't put spin_lock() in a while-condition as spin_lock() may have a
do {} while(0) wrapper (cleanup).
(3) Symbolically name i_mutex lock classes rather than using numbers in
CacheFiles (cleanup).
(4) Don't sleep in page release if __GFP_FS is not set (deadlock vs ext4).
(5) Uninline fscache_object_init() (cleanup for #7).
(6) Wrap checks on object state (cleanup for #7).
(7) Simplify the object state machine by separating work states from wait
states.
(8) Simplify cookie retention by objects (NULL pointer deref fix).
(9) Remove unused list_to_page() macro (cleanup).
(10) Make the remaining-pages counter in the retrieval op atomic (assertion
failure fix).
(11) Don't use spin_is_locked() in assertions (assertion failure fix).
This is tagged with fscache-20130702. This is the same as fscache-20130619
but with added acks.
Thanks,
David
---
The following changes since commit b973425cbb51e08301b34fecdfd476a44507d8cf:
Merge tag 'ext4_for_linus_stable' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 (2013-05-14 09:30:54 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/dhowells/linux-fs.git tags/fscache-20130702
for you to fetch changes up to dcfae32f892f03dee9896b19d1960c1ecd3f0583:
FS-Cache: Don't use spin_is_locked() in assertions (2013-06-19 14:16:47 +0100)
----------------------------------------------------------------
(from the branch description for fscache local branch)
clone of "master"
FS-Cache patches 2013-07-02
----------------------------------------------------------------
David Howells (8):
Add wait_on_atomic_t() and wake_up_atomic_t()
FS-Cache: Don't sleep in page release if __GFP_FS is not set
FS-Cache: Uninline fscache_object_init()
FS-Cache: Wrap checks on object state
FS-Cache: Fix object state machine to have separate work and wait states
FS-Cache: Simplify cookie retention for fscache_objects, fixing oops
FS-Cache: The retrieval remaining-pages counter needs to be atomic_t
FS-Cache: Don't use spin_is_locked() in assertions
Haicheng Li (1):
cachefiles: remove unused macro list_to_page()
J. Bruce Fields (1):
CacheFiles: name i_mutex lock class explicitly
Sebastian Andrzej Siewior (1):
fs/fscache: remove spin_lock() from the condition in while()
fs/cachefiles/interface.c | 13 +-
fs/cachefiles/namei.c | 10 +-
fs/cachefiles/xattr.c | 6 +-
fs/fscache/cache.c | 34 +-
fs/fscache/cookie.c | 93 ++--
fs/fscache/fsdef.c | 1 +
fs/fscache/internal.h | 11 +-
fs/fscache/main.c | 11 +-
fs/fscache/netfs.c | 1 +
fs/fscache/object-list.c | 103 ++--
fs/fscache/object.c | 1106 +++++++++++++++++++++--------------------
fs/fscache/operation.c | 37 +-
fs/fscache/page.c | 65 ++-
include/linux/fscache-cache.h | 175 +++----
include/linux/wait.h | 24 +
kernel/wait.c | 88 ++++
16 files changed, 956 insertions(+), 822 deletions(-)
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