Commit Graph

505622 Commits

Author SHA1 Message Date
Vaishali Thakkar
78f5d8f9f9 Staging: rtl8188eu: Remove unused struct ndis_802_11_key
This patch removes struct ndis_802_11_key as it is defined
in a header file but never used.

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:34:16 -08:00
Aya Mahfouz
9a9bdd689c staging: comedi: drivers: replace init_timer by setup_timer
This patch replaces init_timer and 2 step initialization of function and
data by setup_timer to make the code  more concise.

The issue was discovered using the following coccinelle script:

@@
expression ds, e1, e2;
@@

-init_timer (&ds);
+setup_timer (&ds, e1, e2);
...
-ds.function = e1;
...
-ds.data = e2;

Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:31:53 -08:00
Katie Dunne
b4c2c314c1 Staging: media: mn88473: Match alignment with open parenthesis
Fixes the checkpatch.pl Check:
CHECK: Alignment should match open parenthesis

Increases readability by standardizing 7 argument indentations

Signed-off-by: Katie Dunne <kdunne@mail.ccsf.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:59 -08:00
Vaishali Thakkar
b856e0f7b2 Staging: media: Change data value in setup_timer function
Here, data value 0xabadcafe in function setup_timer
seems like a nonsense value and timer handler function
is not using it anyway. So, change it to 0.

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:59 -08:00
Vaishali Thakkar
08e28893b3 Staging: media: lirc: Use setup_timer
This patch introduces the use of function setup_timer
instead of structure assignments as it is the preferred
way to setup and set the timer.

This is done using Coccinelle and semantic patch used is
as follows:

@@
expression x,y,z;
@@

- init_timer (&x);
+ setup_timer (&x, y, z);
- x.function = y;
- x.data = z;

Signed-off-by: Vaishali Thakkar <vthakkar1994@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:59 -08:00
Yeliz Taneroglu
96748c9635 Staging: i2o: Add blank line
This patch fixes the checkpatch.pl warning:
WARNING: "Missing a blank line after declarations"

Signed-off-by: Yeliz Taneroglu <yeliztaneroglu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:59 -08:00
Yeliz Taneroglu
cbd8e0863a Staging: i2o: Removed unnecessary braces
The following patch fixes the checkpatch.pl warning:
WARNING: braces {} are not necessary for single statement blocks

Signed-off-by: Yeliz Taneroglu <yeliztaneroglu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:59 -08:00
aybuke ozdemir
1e0e76508c Staging: i2o: Remove unnecessary braces
Brackets were removed from the expression that containing single
statement. Removed following checkpatch.pl warnings:
WARNING: braces {} are not necessary for single statement blocks

Signed-off-by: aybuke ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
aybuke ozdemir
924954f124 Staging: i2o: Remove unnecessary 'out of memory' message
This patch removes unnecessay out of memory message fixing the following
checkpach.pl warning in device.c

Signed-off-by: aybuke ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
Aya Mahfouz
30463dcfa2 staging: i2o: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
This patch fixes the following checkpatch.pl warning:
Use #include <linux/uaccess.h> instead of <asm/uaccess.h>

Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
Aya Mahfouz
7c4550aff7 staging: i2o: Use #include <linux/uaccess.h> instead of <asm/uaccess.h>
This patch fixes the following checkpatch.pl warning:
Use #include <linux/uaccess.h> instead of <asm/uaccess.h>

Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
Vatika Harlalka
f0a6fb6624 Staging: i2o: Join quoted string split across lines
This patch removes the checkpatch.pl warnings "quoted string split accross lines"

Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
Vatika Harlalka
9e95ff88fe Staging: i2o: Remove space after the * in a pointer type variable
This patch is to remove space after the * in pointer type function parameters
in function prototype and definition to follow kernel coding conventions.

Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
Vatika Harlalka
e267cc5e48 Staging: i2o: Convert comment from C99 style to C89 style
This patch fixes checkpatch.pl error in debug.c
ERROR: do not use C99 // comments

Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
Vatika Harlalka
f643bad17f Staging: i2o: Use preferred library linux/uaccess.h over asm/uaccess.h
This patch fixes checkpatch.pl warning "Use #include
<linux/uaccess.h> instead of <asm/uaccess.h>" in i2o/config-osm.c .

Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
aybuke ozdemir
1aba012174 Staging: vt6656: replace memcpy() by ether_addr_copy() using coccinelle and pack variable
This patch focuses on fixing the following warning generated
by checkpatch.pl for the file rxtx.c

Prefer ether_addr_copy() over memcpy() if the Ethernet addresses
are __aligned(2)

@@ expression e1, e2; @@

- memcpy(e1, e2, ETH_ALEN);
+ ether_addr_copy(e1, e2);

According to ether_addr_copy() description and functionality,
all Ethernet addresses should align to the u16 datatype.
The changes were applied using the following coccinelle rule:

Here is the output of pahole for the relevant datastructures:
struct vnt_usb_send_context {
        void *                     priv;                 /*     0     8*/
        struct sk_buff *           skb;                  /*     8     8*/
        struct urb *               urb;                  /*    16     8*/
        struct ieee80211_hdr *     hdr;                  /*    24     8*/
        unsigned int               buf_len;              /*    32     4*/
        u32                        frame_len;            /*    36     4*/
        u16                        tx_hdr_size;          /*    40     2*/
        u16                        tx_rate;              /*    42     2*/
        u8                         type;                 /*    44     1*/
        u8                         pkt_no;               /*    45     1*/
        u8                         pkt_type;             /*    46     1*/
        u8                         need_ack;             /*    47     1*/
        u8                         fb_option;            /*    48     1*/
        bool                       in_use;               /*    49     1*/
        unsigned char              data[2900];           /*    50  2900*/
        /* --- cacheline 46 boundary (2944 bytes) was 6 bytes ago --- */

        /* size: 2952, cachelines: 47, members: 15 */
        /* padding: 2 */
        /* last cacheline: 8 bytes */
};

struct ieee80211_key_conf {
        u32                        cipher;               /*     0     4*/
        u8                         icv_len;              /*     4     1*/
        u8                         iv_len;               /*     5     1*/
        u8                         hw_key_idx;           /*     6     1*/
        u8                         flags;                /*     7     1*/
        s8                         keyidx;               /*     8     1*/
        u8                         keylen;               /*     9     1*/
        u8                         key[0];               /*    10     0*/

        /* size: 12, cachelines: 1, members: 8 */
        /* padding: 2 */
        /* last cacheline: 12 bytes */
};

struct vnt_mic_hdr {
        u8                         id;                   /*     0     1*/
        u8                         tx_priority;          /*     1     1*/
        u8                         mic_addr2[6];         /*     2     6*/
        u8                         ccmp_pn[6];           /*     8     6*/
        __be16                     payload_len;          /*    14     2*/
        __be16                     hlen;                 /*    16     2*/
        __le16                     frame_control;        /*    18     2*/
        u8                         addr1[6];             /*    20     6*/
        u8                         addr2[6];             /*    26     6*/
        u8                         addr3[6];             /*    32     6*/
        __le16                     seq_ctrl;             /*    38     2*/
        u8                         addr4[6];             /*    40     6*/
        u16                        packing;              /*    46     2*/

        /* size: 48, cachelines: 1, members: 13 */
        /* last cacheline: 48 bytes */
};

Signed-off-by: aybuke ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
Hatice ERTÜRK
34c3a15061 Staging: vt6655: changed C99 // comments
// erased and replace it with /* */ used.
Error found with checkpatch.pl

Signed-off-by: Hatice ERTURK <haticeerturk27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
Katie Dunne
4d36302448 Staging: vt6655: break lines over 80 characters
Addresses checkpatch.pl warning:
WARNING: line over 80 characters

Break 2 lines over 80 characters and align with opening parenthesis

Signed-off-by: Katie Dunne <kdunne@mail.ccsf.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
Katie Dunne
0cc5a4f9d5 Staging: vt6655: Replace C99 comments with C89
Addresses the checkpatch.pl error:
ERROR: Do not use C99 // comments

Remove an unneeded comment line
Replace C99 comments with C89
Reduce multiple line comments to one line
Shorten comments over 80 line by removing blank space

Signed-off-by: Katie Dunne <kdunne@mail.ccsf.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
Melike Yurtoglu
6341898323 Staging: lustre: Deleted space prohibited between function name and open parenthesis
WARNING: space prohibited between function name and open parenthesis '('
Remove unnecessary space between function name and opening parenthesis.
That was found by running checkpatch

Signed-off-by: Melike Yurtoglu <aysemelikeyurtoglu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:58 -08:00
aybuke ozdemir
4f211c20fa Staging: lustre: Removed unnecessary spaces
Fix checkpatch.pl issues with "unnecessary whitespace before a quoted
newline" in llite_lib.c

Signed-off-by: aybuke ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
aybuke ozdemir
692f2b6cc2 Staging: lustre: use kstrtoul() instead of sscanf()
This patch makes checkpatch.pl by fixing the following warning:
WARNING: Prefer kstrto<type> to single variable sscanf.
I used to kstrtoul can convert unsigned long instead of sscanf

Signed-off-by: aybuke ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
aybuke ozdemir
99d08456b3 Staging: lustre: Removed unnecessary braces
This patch fixes checkpatch.pl warning in llite_lib.c
WARNING: braces {} are not necessary for any arm of this statement

Signed-off-by: aybuke ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
aybuke ozdemir
e17f5594d5 Staging: lustre: Edit switch-case indent
This patch fixes indent as the codingStyle
of the kernel recommends in dir.c
Fix checkpatch.pl error:
ERROR: switch and case should be at the same indent.

Signed-off-by: aybuke ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
aybuke ozdemir
7979219006 Staging: lustre: Add blank line after variable declarations
This patch fixes "Missing a blank line after declarations" checkpatch.pl
warning in dir.c

Signed-off-by: aybuke ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
aybuke ozdemir
31982482c0 Staging: lustre: Used "linux" instead of "asm"
This patch fixes "Use #include <linux/uaccess.h> instead of
<asm/uaccess.h"> checkpatch.pl warning in dir.c

Signed-off-by: aybuke ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
Gulsah Kose
17155544f6 staging: lustre: lnet: klnds: o2iblnd: Removed useless return keywords.
Removed return keyword from void functions. Removed following checkpatch.pl warnings:
WARNING: void function return statements are not generally useful

Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
Gulsah Kose
b2ff386821 staging: lustre: lnet: klnds: o2iblnd: Added missing blank line.
Added missing blank line after declaration. Removed following checkpatch.pl warning:
WARNING: Missing a blank line after declarations

Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
Gulsah Kose
b15a85fc49 staging: lustre: lnet: klnds: o2iblnd: Removed unnecessary spaces.
Removed unnecessary spaces between function name and open parenthesis '('.
Removed following checkpatch.pl warnings:
WARNING: space prohibited between function name and open parenthesis '('

Signed-off-by: Gulsah Kose <gulsah.1004@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
Melike Yurtoglu
b656d5fd7e Staging: lustre: lnet: klnds: o2iblnd: Deleted space prohibited between function name and open parenthesis
WARNING: space prohibited between function name and open parenthesis '('
checkpatch.pl warning in o2iblnd_modparams.c

Signed-off-by: Melike Yurtoglu <aysemelikeyurtoglu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
Melike Yurtoglu
2aa53ff69e Staging: lustre: lnet: klnds: o2iblnd: Remove intialization of static to 0
ERROR: do not initialise statics to 0 or NULL
checkpatch.pl error in o2iblnd_modparams.c
initial value unassigned static variables are automatically set to zero.
so it is unnecessary to assign the initial value to zero

Signed-off-by: Melike Yurtoglu <aysemelikeyurtoglu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
aybuke ozdemir
95c3fe337b Staging: lustre: lnet: add spaces around '||'
This fixes the checkpatch.pl error in conctl.c:
ERROR: spaces required around that '||' (ctx:VxE)

Signed-off-by: aybuke ozdemir <aybuke.147@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:57 -08:00
Melike Yurtoglu
d501e5641a Staging: lustre: include: linux: libcfs: Remove spaces at the start of a line
This patch fixes checpatch.pl warning
WARNING: please, no spaces at the start of a line

Signed-off-by: Melike Yurtoglu <aysemelikeyurtoglu@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:56 -08:00
Aya Mahfouz
17ca290e25 staging: lustre: ldlm: remove commented call to LBUG
This patch removes a commented call to LBUG since lustre should be
cleaned out of debugging macros before moving out of staging.

Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-26 12:23:56 -08:00
Aya Mahfouz
43da0d92ab staging: fbtft: fix space prohibited before that ','
This patch fixes the following checkpatch.pl error:
space prohibited before that ','

Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-24 15:31:15 -08:00
Aya Mahfouz
171c44fcbb staging: fbtft: fix spacing errors
This patch fixes the following checkpatch.pl errors for
the file fb_bd663474.c:

ERROR: space prohibited before that close parenthesis ')'
ERROR: space prohibited after that open parenthesis '('
ERROR: space required after that ','

Signed-off-by: Aya Mahfouz <mahfouz.saif.elyazal@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-24 15:31:15 -08:00
Vatika Harlalka
ce5aebd678 Staging: emxx_udc: Convert from __attribute__((aligned(size))) to __aligned(size)
This patch addresses the checkpatch.pl warning
WARNING: __aligned(size) is preferred over __attribute__((aligned(size)))

aligned(x) is a macro :
#define __aligned(x)                   __attribute__((aligned(x)))

Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-24 15:28:35 -08:00
Tapasweni Pathak
4a0721bf84 staging: emxx_udc: Replace GFP_KERNEL with GFP_ATOMIC
To avoid deadlock, do not call blocking functions with spinlocks held.

Replace GFP_KERNEL with GFP_ATOMIC, as the latter will fail if the pile
doesn't have enough free pages but will not sleep and hence deadlock can
be avoided.

Found by Coccinelle.

Signed-off-by: Tapasweni Pathak <tapaswenipathak@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-24 15:28:35 -08:00
Vatika Harlalka
371ec40392 Staging: dgnc: Fix warning of code style
This patch fixes checkpatch.pl WARNING:
Line longer than 80 chars.

Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-24 14:14:39 -08:00
Vatika Harlalka
9e39ab27fb Staging: dgnc: Removed trailing whitespace to improve readability.
Removed trailing whitespaces to improve code readability and remove checkpatch warning.

Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-24 14:14:39 -08:00
Vatika Harlalka
985d251b7e Staging: dgnc: Indented code to increase readability
Indented code and fixed checkpatch warning to enhance readability.

Signed-off-by: Vatika Harlalka <vatikaharlalka@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-02-24 14:14:39 -08:00
Linus Torvalds
c517d838eb Linux 4.0-rc1
.. after extensive statistical analysis of my G+ polling, I've come to
the inescapable conclusion that internet polls are bad.

Big surprise.

But "Hurr durr I'ma sheep" trounced "I like online polls" by a 62-to-38%
margin, in a poll that people weren't even supposed to participate in.
Who can argue with solid numbers like that? 5,796 votes from people who
can't even follow the most basic directions?

In contrast, "v4.0" beat out "v3.20" by a slimmer margin of 56-to-44%,
but with a total of 29,110 votes right now.

Now, arguably, that vote spread is only about 3,200 votes, which is less
than the almost six thousand votes that the "please ignore" poll got, so
it could be considered noise.

But hey, I asked, so I'll honor the votes.
2015-02-22 18:21:14 -08:00
Linus Torvalds
feaf222925 Ext4 bug fixes for 3.20. We also reserved code points for encryption
and read-only images (for which the implementation is mostly just the
 reserved code point for a read-only feature :-)
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Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 fixes from Ted Ts'o:
 "Ext4 bug fixes.

  We also reserved code points for encryption and read-only images (for
  which the implementation is mostly just the reserved code point for a
  read-only feature :-)"

* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
  ext4: fix indirect punch hole corruption
  ext4: ignore journal checksum on remount; don't fail
  ext4: remove duplicate remount check for JOURNAL_CHECKSUM change
  ext4: fix mmap data corruption in nodelalloc mode when blocksize < pagesize
  ext4: support read-only images
  ext4: change to use setup_timer() instead of init_timer()
  ext4: reserve codepoints used by the ext4 encryption feature
  jbd2: complain about descriptor block checksum errors
2015-02-22 18:05:13 -08:00
Linus Torvalds
be5e6616dd Merge branch 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull more vfs updates from Al Viro:
 "Assorted stuff from this cycle.  The big ones here are multilayer
  overlayfs from Miklos and beginning of sorting ->d_inode accesses out
  from David"

* 'for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (51 commits)
  autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
  procfs: fix race between symlink removals and traversals
  debugfs: leave freeing a symlink body until inode eviction
  Documentation/filesystems/Locking: ->get_sb() is long gone
  trylock_super(): replacement for grab_super_passive()
  fanotify: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
  Cachefiles: Fix up scripted S_ISDIR/S_ISREG/S_ISLNK conversions
  VFS: (Scripted) Convert S_ISLNK/DIR/REG(dentry->d_inode) to d_is_*(dentry)
  SELinux: Use d_is_positive() rather than testing dentry->d_inode
  Smack: Use d_is_positive() rather than testing dentry->d_inode
  TOMOYO: Use d_is_dir() rather than d_inode and S_ISDIR()
  Apparmor: Use d_is_positive/negative() rather than testing dentry->d_inode
  Apparmor: mediated_filesystem() should use dentry->d_sb not inode->i_sb
  VFS: Split DCACHE_FILE_TYPE into regular and special types
  VFS: Add a fallthrough flag for marking virtual dentries
  VFS: Add a whiteout dentry type
  VFS: Introduce inode-getting helpers for layered/unioned fs environments
  Infiniband: Fix potential NULL d_inode dereference
  posix_acl: fix reference leaks in posix_acl_create
  autofs4: Wrong format for printing dentry
  ...
2015-02-22 17:42:14 -08:00
Linus Torvalds
90c453ca22 Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fix from Russell King:
 "Just one fix this time around.  __iommu_alloc_buffer() can cause a
  BUG() if dma_alloc_coherent() is called with either __GFP_DMA32 or
  __GFP_HIGHMEM set.  The patch from Alexandre addresses this"

* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
  ARM: 8305/1: DMA: Fix kzalloc flags in __iommu_alloc_buffer()
2015-02-22 09:57:16 -08:00
Al Viro
0a280962dc autofs4 copy_dev_ioctl(): keep the value of ->size we'd used for allocation
X-Coverup: just ask spender
Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-22 11:43:34 -05:00
Al Viro
7e0e953bb0 procfs: fix race between symlink removals and traversals
use_pde()/unuse_pde() in ->follow_link()/->put_link() resp.

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-22 11:43:12 -05:00
Al Viro
0db59e5929 debugfs: leave freeing a symlink body until inode eviction
As it is, we have debugfs_remove() racing with symlink traversals.
Supply ->evict_inode() and do freeing there - inode will remain
pinned until we are done with the symlink body.

And rip the idiocy with checking if dentry is positive right after
we'd verified debugfs_positive(), which is a stronger check...

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-22 11:38:43 -05:00
Al Viro
dca111782c Documentation/filesystems/Locking: ->get_sb() is long gone
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-22 11:38:43 -05:00
Konstantin Khlebnikov
eb6ef3df4f trylock_super(): replacement for grab_super_passive()
I've noticed significant locking contention in memory reclaimer around
sb_lock inside grab_super_passive(). Grab_super_passive() is called from
two places: in icache/dcache shrinkers (function super_cache_scan) and
from writeback (function __writeback_inodes_wb). Both are required for
progress in memory allocator.

Grab_super_passive() acquires sb_lock to increment sb->s_count and check
sb->s_instances. It seems sb->s_umount locked for read is enough here:
super-block deactivation always runs under sb->s_umount locked for write.
Protecting super-block itself isn't a problem: in super_cache_scan() sb
is protected by shrinker_rwsem: it cannot be freed if its slab shrinkers
are still active. Inside writeback super-block comes from inode from bdi
writeback list under wb->list_lock.

This patch removes locking sb_lock and checks s_instances under s_umount:
generic_shutdown_super() unlinks it under sb->s_umount locked for write.
New variant is called trylock_super() and since it only locks semaphore,
callers must call up_read(&sb->s_umount) instead of drop_super(sb) when
they're done.

Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2015-02-22 11:38:42 -05:00