There are three bugs in this code:
1) If indx_get_root() fails, then return -EINVAL instead of success.
2) On the "/* make root external */" -EOPNOTSUPP; error path it should
free "re" but it has a memory leak.
3) If indx_new() fails then it will lead to an error pointer dereference
when we call put_indx_node().
I've re-written the error handling to be more clear.
Fixes: 82cae269cf ("fs/ntfs3: Add initialization of super block")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
The "e" pointer is dereferenced before it has been checked for NULL.
Move the dereference after the NULL check to prevent an Oops.
Fixes: 82cae269cf ("fs/ntfs3: Add initialization of super block")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Return -EINVAL if ni_find_attr() fails. Don't return success.
Fixes: 82cae269cf ("fs/ntfs3: Add initialization of super block")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
The ntfs_get_ea() function returns negative error codes or on success
it returns the length. In the original code a zero length return was
treated as -ENODATA and results in a NULL return. But it should be
treated as an invalid length and result in an PTR_ERR(-EINVAL) return.
Fixes: be71b5cba2 ("fs/ntfs3: Add attrib operations")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Add a check for when the kzalloc() in init_rsttbl() fails. Some of
the callers checked for NULL and some did not. I went down the call
tree and added NULL checks where ever they were missing.
Fixes: b46acd6a6a ("fs/ntfs3: Add NTFS journal")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Use kcalloc/kmalloc_array over kzalloc/kmalloc when we allocate array.
Checkpatch found these after we did not use our own defined allocation
wrappers.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Problem with these wrapper is that we cannot take off example GFP_NOFS
flag. It is not recomended use those in all places. Also if we change
one driver specific wrapper to kernel wrapper then it would look really
weird. People should be most familiar with kernel wrappers so let's just
use those ones.
Driver specific alloc wrapper also confuse some static analyzing tools,
good example is example kernels checkpatch tool. After we converter
these to kernel specific then warnings is showed.
Following Coccinelle script was used to automate changing.
virtual patch
@alloc depends on patch@
expression x;
expression y;
@@
(
- ntfs_malloc(x)
+ kmalloc(x, GFP_NOFS)
|
- ntfs_zalloc(x)
+ kzalloc(x, GFP_NOFS)
|
- ntfs_vmalloc(x)
+ kvmalloc(x, GFP_NOFS)
|
- ntfs_free(x)
+ kfree(x)
|
- ntfs_vfree(x)
+ kvfree(x)
|
- ntfs_memdup(x, y)
+ kmemdup(x, y, GFP_NOFS)
)
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
The static checkers (Smatch) were complaining because QuadAlign() was
buggy. If you try to align something higher than UINT_MAX it got
truncated to a u32.
Smatch warning was:
fs/ntfs3/attrib.c:383 attr_set_size_res()
warn: was expecting a 64 bit value instead of '~7'
So that this will not happen again we will change all these macros to
kernel made ones. This can also help some other static analyzing tools
to give us better warnings.
Patch was generated with Coccinelle script and after that some style
issue was hand fixed.
Coccinelle script:
virtual patch
@alloc depends on patch@
expression x;
@@
(
- #define QuadAlign(n) (((n) + 7u) & (~7u))
|
- QuadAlign(x)
+ ALIGN(x, 8)
|
- #define IsQuadAligned(n) (!((size_t)(n)&7u))
|
- IsQuadAligned(x)
+ IS_ALIGNED(x, 8)
|
- #define Quad2Align(n) (((n) + 15u) & (~15u))
|
- Quad2Align(x)
+ ALIGN(x, 16)
|
- #define IsQuad2Aligned(n) (!((size_t)(n)&15u))
|
- IsQuad2Aligned(x)
+ IS_ALIGNED(x, 16)
|
- #define Quad4Align(n) (((n) + 31u) & (~31u))
|
- Quad4Align(x)
+ ALIGN(x, 32)
|
- #define IsSizeTAligned(n) (!((size_t)(n) & (sizeof(size_t) - 1)))
|
- IsSizeTAligned(x)
+ IS_ALIGNED(x, sizeof(size_t))
|
- #define DwordAlign(n) (((n) + 3u) & (~3u))
|
- DwordAlign(x)
+ ALIGN(x, 4)
|
- #define IsDwordAligned(n) (!((size_t)(n)&3u))
|
- IsDwordAligned(x)
+ IS_ALIGNED(x, 4)
|
- #define WordAlign(n) (((n) + 1u) & (~1u))
|
- WordAlign(x)
+ ALIGN(x, 2)
|
- #define IsWordAligned(n) (!((size_t)(n)&1u))
|
- IsWordAligned(x)
+ IS_ALIGNED(x, 2)
|
)
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
First of this fix one none utf8 char in this comment block. Maybe
this happened because error in filesystem ;)
Also this block was hard to read because long lines so make it max 80
long. And while we doing this stuff make little better grammer.
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Fix the following fallthrough warnings:
fs/ntfs3/inode.c:1792:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
fs/ntfs3/index.c:178:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough]
This helps with the ongoing efforts to globally enable
-Wimplicit-fallthrough for Clang.
Link: https://github.com/KSPP/linux/issues/115
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
In one source file there is for some reason non utf8 char. But hey this
is fs development so this kind of thing might happen.
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Clang warns:
fs/ntfs3/fsntfs.c:1874:9: warning: variable 'cnt' set but not used
[-Wunused-but-set-variable]
size_t cnt, off;
^
1 warning generated.
It is indeed unused so remove it.
Fixes: 82cae269cf ("fs/ntfs3: Add initialization of super block")
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Nick Desaulniers <ndesaulniers@google.com>
Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
The multiplication of the u32 data_size with a int is being performed
using 32 bit arithmetic however the results is being assigned to the
variable nbits that is a size_t (64 bit) value. Fix a potential
integer overflow by casting the u32 value to a size_t before the
multiply to use a size_t sized bit multiply operation.
Addresses-Coverity: ("Unintentional integer overflow")
Fixes: 82cae269cf ("fs/ntfs3: Add initialization of super block")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
Add guards so that compiler will only include header files once.
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
We do not need our own implementation for this function in this
driver. It is much better to use generic one.
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
There is a spelling mistake in a ntfs_err error message. Also
fix various spelling mistakes in comments.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
When checking a generic status block, we iterate over all the generic data
blocks. The loop condition checks that the generic data block is valid.
Because the size of data blocks (excluding error data) may vary depending
on the revision and the revision is contained within the data block, we
should ensure that enough of the current data block is valid appropriately
for different revision.
Signed-off-by: Shuai Xue <xueshuai@linux.alibaba.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
When print GUIDs supply pointer to the efi_guid_t (guid_t) type rather
its internal members.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Serge Hallyn <serge@hallyn.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
The last two if-clauses fail to update n, so whatever they might have
written at &msg[n] would be cut off by the final nul-termination.
That nul-termination is redundant; scnprintf(), just like snprintf(),
guarantees a nul-terminated output buffer, provided the buffer size is
positive.
And there's no need to discount one byte from the initial buffer;
vsnprintf() expects to be given the full buffer size - it's not going
to write the nul-terminator one beyond the given (buffer, size) pair.
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
blk_mq_alloc_disk() returns error pointers, it doesn't return NULL
so correct the check.
Fixes: 262d431f90 ("pd: use blk_mq_alloc_disk and blk_cleanup_disk")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20210827100023.GB9449@kili
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Given a linkchain like this:
req0(link_flag)-->req1(link_flag)-->...-->reqn(no link_flag)
There is a problem:
- if some intermediate linked req like req1 's submittion fails, reqs
after it won't be cancelled.
- sqpoll disabled: maybe it's ok since users can get the error info
of req1 and stop submitting the following sqes.
- sqpoll enabled: definitely a problem, the following sqes will be
submitted in the next round.
The solution is to refactor the code logic to:
- if a linked req's submittion fails, just mark it and the head(if it
exists) as REQ_F_FAIL. Leverage req->result to indicate whether it
is failed or cancelled.
- submit or fail the whole chain when we come to the end of it.
Signed-off-by: Hao Xu <haoxu@linux.alibaba.com>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/20210827094609.36052-3-haoxu@linux.alibaba.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
fscache_cookie_put() accesses the cookie it has just put inside the
tracepoint that monitors the change - but this is something it's not
allowed to do if we didn't reduce the count to zero.
Fix this by dropping most of those values from the tracepoint and grabbing
the cookie debug ID before doing the dec.
Also take the opportunity to switch over the usage and where arguments on
the tracepoint to put the reason last.
Fixes: a18feb5576 ("fscache: Add tracepoints")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/162431203107.2908479.3259582550347000088.stgit@warthog.procyon.org.uk/
The current hash algorithm used for hashing cookie keys is really bad,
producing almost no dispersion (after a test kernel build, ~30000 files
were split over just 18 out of the 32768 hash buckets).
Borrow the full_name_hash() hash function into fscache to do the hashing
for cookie keys and, in the future, volume keys.
I don't want to use full_name_hash() as-is because I want the hash value to
be consistent across arches and over time as the hash value produced may
get used on disk.
I can also optimise parts of it away as the key will always be a padded
array of aligned 32-bit words.
Fixes: ec0328e46d ("fscache: Maintain a catalogue of allocated cookies")
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
cc: linux-cachefs@redhat.com
Link: https://lore.kernel.org/r/162431201844.2908479.8293647220901514696.stgit@warthog.procyon.org.uk/
ww_mutexes can legitimately cause a deadlock situation in the lock graph
which is resolved afterwards by the wait/wound mechanics. The rtmutex chain
walk can detect such a deadlock and returns EDEADLK which in turn skips the
wait/wound mechanism and returns EDEADLK to the caller. That's wrong
because both lock chains might get EDEADLK or the wrong waiter would back
out.
Detect that situation and return 'success' in case that the waiter which
initiated the chain walk is a ww_mutex with context. This allows the
wait/wound mechanics to resolve the situation according to the rules.
[ tglx: Split it apart and added changelog ]
Reported-by: Sebastian Siewior <bigeasy@linutronix.de>
Fixes: add461325e ("locking/rtmutex: Extend the rtmutex core to support ww_mutex")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/YSeWjCHoK4v5OcOt@hirez.programming.kicks-ass.net
rtmutex based ww_mutexes can legitimately create a cycle in the lock graph
which can be observed by a blocker which didn't cause the problem:
P1: A, ww_A, ww_B
P2: ww_B, ww_A
P3: A
P3 might therefore be trapped in the ww_mutex induced cycle and run into
the lock depth limitation of rt_mutex_adjust_prio_chain() which returns
-EDEADLK to the caller.
Disable the deadlock detection walk when the chain walk observes a
ww_mutex to prevent this looping.
[ tglx: Split it apart and added changelog ]
Reported-by: Sebastian Siewior <bigeasy@linutronix.de>
Fixes: add461325e ("locking/rtmutex: Extend the rtmutex core to support ww_mutex")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/YSeWjCHoK4v5OcOt@hirez.programming.kicks-ass.net
Enhancing the mailbox scope to support important configurations
like enabling scheduled LMTST, disable LMTLINE prefetch, disable
early completion for ordered LMTST, as per request from the
application. On FLR these configurations will be reset to default.
This patch also adds the 95XXO silicon version to octeontx2 silicon
list.
Signed-off-by: Harman Kalra <hkalra@marvell.com>
Signed-off-by: Sunil Goutham <sgoutham@marvell.com>
Signed-off-by: Geetha sowjanya <gakula@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Armada 3700 does not support RXAUI, XFI and neither SFI. Remove unused
macros for these unsupported modes.
Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 9695375a3f ("phy: add A3700 COMPHY support")
Signed-off-by: David S. Miller <davem@davemloft.net>
Comphy phy mode 0x3 is incorrectly named. It is not SGMII but rather
2500Base-X mode which runs at 3.125 Gbps speed.
Rename macro names and comments to 2500Base-X.
Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: 9695375a3f ("phy: add A3700 COMPHY support")
Signed-off-by: David S. Miller <davem@davemloft.net>
Comphy phy mode 0x3 is incorrectly named. It is not SGMII but rather
2500Base-X mode which runs at 3.125 Gbps speed.
Rename macro names and comments to 2500Base-X.
Signed-off-by: Pali Rohár <pali@kernel.org>
Fixes: eb6a1fcb53 ("phy: mvebu-cp110-comphy: Add SMC call support")
Fixes: c2afb2fef5 ("phy: mvebu-cp110-comphy: Rename the macro handling only Ethernet modes")
Signed-off-by: David S. Miller <davem@davemloft.net>
Guangbin Huang says:
====================
net: hns3: add some cleanups
This series includes some cleanups for the HNS3 ethernet driver.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
The parameter cmd in function definition of hns3_dbg_bd_file_init and
hns3_dbg_common_file_init is used type u32, this patch uniforms them
in function declaration to type u32 too.
Signed-off-by: Hao Chen <chenhao288@hisilicon.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
There are some repetitive macros have same meaning and value, this patch
merges them to make code clean.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch packages two new function to simplify the function
hclgevf_mbx_handler, and it can reduce the code cycle complexity
and make code more concise.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The param msg_q is redundant, copy &req->msg to
hdev->arq.msg_q[hdev->arq.tail] directly makes code clean.
So removes the redundant param msg_q.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Use memcpy to copy req->msg.resp_data to resp->additional_info,
to simplify the code and improve a little efficiency.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch removes the redundant param mbx_event_pending.
Signed-off-by: Peng Li <lipeng321@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To improve the readability and maintainability, add hns3_state_init() to
initialize the state, and this new function will be used to add more state
initialization in the future.
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
To improve code readability, replace digital numbers of mac speeds
defined by firmware command with macros.
Signed-off-by: Guangbin Huang <huangguangbin2@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
ipsec-next
Steffen Klassert says:
====================
pull request (net-next): ipsec-next 2021-08-27
1) Remove an unneeded extra variable in esp4 esp_ssg_unref.
From Corey Minyard.
2) Add a configuration option to change the default behaviour
to block traffic if there is no matching policy.
Joint work with Christian Langrock and Antony Antony.
3) Fix a shift-out-of-bounce bug reported from syzbot.
From Pavel Skripkin.
Please pull or let me know if there are problems.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch series contains various fixes, additions and improvements to
mlx5 software steering.
Patch 1:
adds support for REMOVE_HEADER packet reformat - a new reformat type
that is supported starting with ConnectX-6 DX, and allows removing an
arbitrary size packet segment at a selected position.
Patches 2 and 3:
add support for VLAN pop on TX and VLAN push on RX flows.
Patch 4:
enables retransmission mechanism for the SW Steering RC QP.
Patch 5:
does some improvements to error flow in building STE array and adds
a more informative printout of an invalid actions sequence.
Patch 6:
improves error flow on SW Steering QP error.
Patch 7:
reduces the log level of a message that is printed when a table is
connected to a lower/same level destination table, as this case proves to
be not as rare as it was in the past.
Patch 8:
adds missing support for matching on IPv6 flow label for devices
older than ConnectX-6 DX.
Patch 9:
replaces uintN_t types with kernel-style types.
Patch 10:
allows for using the right API for updating flow tables - if it is
a FW-owned table, then FW API will be used.
Patch 11:
adds support for 'ignore_flow_level' on multi-destination flow
tables that are created by SW Steering.
Patch 12:
optimizes FDB RX steering rule by skipping matching on source port,
as the source port for all incoming packets equals to wire.
Patch 13:
is a small code refactoring - it merges several DR_STE_SIZE enums
into a single enum.
Patch 14:
does some additional refactoring and removes HW-specific STE type
from NIC domain.
Patch 15:
removes rehash ctrl struct from dr_htbl struct and saves some memory.
Patch 16:
does a more significant improvement in terms of memory consumption
and was able to save about 1.6 Gb for 8M rules.
Patch 17:
adds support for update FTE, which is needed for cases where there
are multiple rules with the same match.
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Merge tag 'mlx5-updates-2021-08-26' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahameed says:
====================
This patch series contains various fixes, additions and improvements to
mlx5 software steering.
Patch 1:
adds support for REMOVE_HEADER packet reformat - a new reformat type
that is supported starting with ConnectX-6 DX, and allows removing an
arbitrary size packet segment at a selected position.
Patches 2 and 3:
add support for VLAN pop on TX and VLAN push on RX flows.
Patch 4:
enables retransmission mechanism for the SW Steering RC QP.
Patch 5:
does some improvements to error flow in building STE array and adds
a more informative printout of an invalid actions sequence.
Patch 6:
improves error flow on SW Steering QP error.
Patch 7:
reduces the log level of a message that is printed when a table is
connected to a lower/same level destination table, as this case proves to
be not as rare as it was in the past.
Patch 8:
adds missing support for matching on IPv6 flow label for devices
older than ConnectX-6 DX.
Patch 9:
replaces uintN_t types with kernel-style types.
Patch 10:
allows for using the right API for updating flow tables - if it is
a FW-owned table, then FW API will be used.
Patch 11:
adds support for 'ignore_flow_level' on multi-destination flow
tables that are created by SW Steering.
Patch 12:
optimizes FDB RX steering rule by skipping matching on source port,
as the source port for all incoming packets equals to wire.
Patch 13:
is a small code refactoring - it merges several DR_STE_SIZE enums
into a single enum.
Patch 14:
does some additional refactoring and removes HW-specific STE type
from NIC domain.
Patch 15:
removes rehash ctrl struct from dr_htbl struct and saves some memory.
Patch 16:
does a more significant improvement in terms of memory consumption
and was able to save about 1.6 Gb for 8M rules.
Patch 17:
adds support for update FTE, which is needed for cases where there
are multiple rules with the same match.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
