ext4: add missing save_error_info() to ext4_error()

The ext4_error() function is missing a call to save_error_info().
Since this is the function which marks the file system as containing
an error, this oversight (which was introduced in 2.6.36) is quite
significant, and should be backported to older stable kernels with
high urgency.

Change-Id: Ia1eb8d91f37ceb67faf3b79d6bc79b899f1d6bfc
Reported-by: Ken Sumrall <ksumrall@google.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: ksumrall@google.com
Cc: stable@kernel.org
Signed-off-by: Ken Sumrall <ksumrall@android.com>
net: wireless: bcmdhd: Combined P2P fixes

- Fix p2p scan
- Fix p2p processing for channels 12 and 13
- Fix service discovery

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Reload FW in case of constant scan failure

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Reduce priority for dhd_dpc and watchdog

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Ignore error if "chanspecs" command is not supported

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Skip inaccurate wl_construct_reginfo() call

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Add wiphyband update for country change

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Return wl_construct_reginfo() call

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Skip country setting if unnecessary

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Add mutex to wl_update_wiphybands()

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcm4329: Init locks in dhd_attach() at the beginning

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Init locks in dhd_attach() at the beginning

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Update wiphy bands on band change

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Fix P2P GO hang issue

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Remove country update from wl_update_wiphybands

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Add info_string param with driver/fw/chip info

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
x86: Call idle notifiers

BZ: 35303

Google patched the idle loop for x86-64 (commit 1fd57f722c) and for ARM
(commit 41fa406c26), but they forgot x86-32.

This is preventing their interactive governor from upshifting CPU
frequencies in intel's SOC platforms (e.g. Medfield, etc.).

Fixing that.

NOTE: The notifier calls are not located in the same exact place in the
idle loop for x86-64 and ARM.  The notifier is called inside the
`while(!need_resched)' loop in x86-64 and outside of it in ARM.  Since
Google has likely tuned this governor for ARM, leaving it as in ARM.

Change-Id: Ibefd0c8f08e4b4c24c4a5c32dcdc574f9090b2b9
Signed-off-by: German Monroy <german.monroy@intel.com>
net: wireless: bcmdhd: Adjust driver/fw/chip info format

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>
net: wireless: bcmdhd: Use proper jiffie-related functions

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>

Conflicts:

	drivers/net/wireless/bcmdhd/wl_cfg80211.c
	drivers/net/wireless/bcmdhd/wl_iw.c
net: wireless: bcmdhd: Prevent HT Avail request failure to flood the log

Signed-off-by: Dmitry Shmidt <dimitrysh@google.com>