| Commit message (Collapse) | Author | Age | Files | Lines |
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Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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clang-format-15 was used to format code according kernel's .clang-format.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Added minor refactoring.
Added and fixed some comments.
In some places, the code has been reformatted to fit into 80 columns.
clang-format-12 was used to format code according kernel's .clang-format.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Added new function ntfs_check_for_free_space.
Added undo mechanism in attr_data_get_block.
Fixes xfstest generic/083
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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There were 2 problems:
- in some cases we lost dirty flag;
- cluster allocation can be called even when it wasn't needed.
Fixes xfstest generic/465
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Remove ntfs_sparse_cluster.
Zero clusters in attr_allocate_clusters.
Fixes xfstest generic/263
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Removed attr_must_be_resident and ntfs_query_def.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Fixing various problems, detected by sparse.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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The bug occours due to a misuse of `attr` variable instead of `attr_b`.
`attr` is being initialized as NULL, then being derenfernced
as `attr->res.data_size`.
This bug causes a crash of the ntfs3 driver itself,
If compiled directly to the kernel, it crashes the whole system.
Signed-off-by: Alon Zahavi <zahavi.alon@gmail.com>
Co-developed-by: Tal Lossos <tallossos@gmail.com>
Signed-off-by: Tal Lossos <tallossos@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Some metadata files are handled before MFT. This adds a null pointer
check for some corner cases that could lead to NPD while reading these
metadata files for a malformed NTFS image.
[ 240.190827] BUG: kernel NULL pointer dereference, address: 0000000000000158
[ 240.191583] #PF: supervisor read access in kernel mode
[ 240.191956] #PF: error_code(0x0000) - not-present page
[ 240.192391] PGD 0 P4D 0
[ 240.192897] Oops: 0000 [#1] PREEMPT SMP KASAN NOPTI
[ 240.193805] CPU: 0 PID: 242 Comm: mount Tainted: G B 5.19.0+ #17
[ 240.194477] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 240.195152] RIP: 0010:ni_find_attr+0xae/0x300
[ 240.195679] Code: c8 48 c7 45 88 c0 4e 5e 86 c7 00 f1 f1 f1 f1 c7 40 04 00 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 e2 d9f
[ 240.196642] RSP: 0018:ffff88800812f690 EFLAGS: 00000286
[ 240.197019] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff85ef037a
[ 240.197523] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff88e95f60
[ 240.197877] RBP: ffff88800812f738 R08: 0000000000000001 R09: fffffbfff11d2bed
[ 240.198292] R10: ffffffff88e95f67 R11: fffffbfff11d2bec R12: 0000000000000000
[ 240.198647] R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000000
[ 240.199410] FS: 00007f233c33be40(0000) GS:ffff888058200000(0000) knlGS:0000000000000000
[ 240.199895] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 240.200314] CR2: 0000000000000158 CR3: 0000000004d32000 CR4: 00000000000006f0
[ 240.200839] Call Trace:
[ 240.201104] <TASK>
[ 240.201502] ? ni_load_mi+0x80/0x80
[ 240.202297] ? ___slab_alloc+0x465/0x830
[ 240.202614] attr_load_runs_vcn+0x8c/0x1a0
[ 240.202886] ? __kasan_slab_alloc+0x32/0x90
[ 240.203157] ? attr_data_write_resident+0x250/0x250
[ 240.203543] mi_read+0x133/0x2c0
[ 240.203785] mi_get+0x70/0x140
[ 240.204012] ni_load_mi_ex+0xfa/0x190
[ 240.204346] ? ni_std5+0x90/0x90
[ 240.204588] ? __kasan_kmalloc+0x88/0xb0
[ 240.204859] ni_enum_attr_ex+0xf1/0x1c0
[ 240.205107] ? ni_fname_type.part.0+0xd0/0xd0
[ 240.205600] ? ntfs_load_attr_list+0xbe/0x300
[ 240.205864] ? ntfs_cmp_names_cpu+0x125/0x180
[ 240.206157] ntfs_iget5+0x56c/0x1870
[ 240.206510] ? ntfs_get_block_bmap+0x70/0x70
[ 240.206776] ? __kasan_kmalloc+0x88/0xb0
[ 240.207030] ? set_blocksize+0x95/0x150
[ 240.207545] ntfs_fill_super+0xb8f/0x1e20
[ 240.207839] ? put_ntfs+0x1d0/0x1d0
[ 240.208069] ? vsprintf+0x20/0x20
[ 240.208467] ? mutex_unlock+0x81/0xd0
[ 240.208846] ? set_blocksize+0x95/0x150
[ 240.209221] get_tree_bdev+0x232/0x370
[ 240.209804] ? put_ntfs+0x1d0/0x1d0
[ 240.210519] ntfs_fs_get_tree+0x15/0x20
[ 240.210991] vfs_get_tree+0x4c/0x130
[ 240.211455] path_mount+0x645/0xfd0
[ 240.211806] ? putname+0x80/0xa0
[ 240.212112] ? finish_automount+0x2e0/0x2e0
[ 240.212559] ? kmem_cache_free+0x110/0x390
[ 240.212906] ? putname+0x80/0xa0
[ 240.213329] do_mount+0xd6/0xf0
[ 240.213829] ? path_mount+0xfd0/0xfd0
[ 240.214246] ? __kasan_check_write+0x14/0x20
[ 240.214774] __x64_sys_mount+0xca/0x110
[ 240.215080] do_syscall_64+0x3b/0x90
[ 240.215442] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 240.215811] RIP: 0033:0x7f233b4e948a
[ 240.216104] Code: 48 8b 0d 11 fa 2a 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 008
[ 240.217615] RSP: 002b:00007fff02211ec8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
[ 240.218718] RAX: ffffffffffffffda RBX: 0000561cdc35b060 RCX: 00007f233b4e948a
[ 240.219556] RDX: 0000561cdc35b260 RSI: 0000561cdc35b2e0 RDI: 0000561cdc363af0
[ 240.219975] RBP: 0000000000000000 R08: 0000561cdc35b280 R09: 0000000000000020
[ 240.220403] R10: 00000000c0ed0000 R11: 0000000000000202 R12: 0000561cdc363af0
[ 240.220803] R13: 0000561cdc35b260 R14: 0000000000000000 R15: 00000000ffffffff
[ 240.221256] </TASK>
[ 240.221567] Modules linked in:
[ 240.222028] CR2: 0000000000000158
[ 240.223291] ---[ end trace 0000000000000000 ]---
[ 240.223669] RIP: 0010:ni_find_attr+0xae/0x300
[ 240.224058] Code: c8 48 c7 45 88 c0 4e 5e 86 c7 00 f1 f1 f1 f1 c7 40 04 00 f3 f3 f3 65 48 8b 04 25 28 00 00 00 48 89 45 d0 31 c0 e8 e2 d9f
[ 240.225033] RSP: 0018:ffff88800812f690 EFLAGS: 00000286
[ 240.225968] RAX: 0000000000000001 RBX: 0000000000000000 RCX: ffffffff85ef037a
[ 240.226624] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffffff88e95f60
[ 240.227307] RBP: ffff88800812f738 R08: 0000000000000001 R09: fffffbfff11d2bed
[ 240.227816] R10: ffffffff88e95f67 R11: fffffbfff11d2bec R12: 0000000000000000
[ 240.228330] R13: 0000000000000080 R14: 0000000000000000 R15: 0000000000000000
[ 240.228729] FS: 00007f233c33be40(0000) GS:ffff888058200000(0000) knlGS:0000000000000000
[ 240.229281] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 240.230298] CR2: 0000000000000158 CR3: 0000000004d32000 CR4: 00000000000006f0
Signed-off-by: Edward Lo <edward.lo@ambergroup.io>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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This adds sanity checks for data run offset. We should make sure data
run offset is legit before trying to unpack them, otherwise we may
encounter use-after-free or some unexpected memory access behaviors.
[ 82.940342] BUG: KASAN: use-after-free in run_unpack+0x2e3/0x570
[ 82.941180] Read of size 1 at addr ffff888008a8487f by task mount/240
[ 82.941670]
[ 82.942069] CPU: 0 PID: 240 Comm: mount Not tainted 5.19.0+ #15
[ 82.942482] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014
[ 82.943720] Call Trace:
[ 82.944204] <TASK>
[ 82.944471] dump_stack_lvl+0x49/0x63
[ 82.944908] print_report.cold+0xf5/0x67b
[ 82.945141] ? __wait_on_bit+0x106/0x120
[ 82.945750] ? run_unpack+0x2e3/0x570
[ 82.946626] kasan_report+0xa7/0x120
[ 82.947046] ? run_unpack+0x2e3/0x570
[ 82.947280] __asan_load1+0x51/0x60
[ 82.947483] run_unpack+0x2e3/0x570
[ 82.947709] ? memcpy+0x4e/0x70
[ 82.947927] ? run_pack+0x7a0/0x7a0
[ 82.948158] run_unpack_ex+0xad/0x3f0
[ 82.948399] ? mi_enum_attr+0x14a/0x200
[ 82.948717] ? run_unpack+0x570/0x570
[ 82.949072] ? ni_enum_attr_ex+0x1b2/0x1c0
[ 82.949332] ? ni_fname_type.part.0+0xd0/0xd0
[ 82.949611] ? mi_read+0x262/0x2c0
[ 82.949970] ? ntfs_cmp_names_cpu+0x125/0x180
[ 82.950249] ntfs_iget5+0x632/0x1870
[ 82.950621] ? ntfs_get_block_bmap+0x70/0x70
[ 82.951192] ? evict+0x223/0x280
[ 82.951525] ? iput.part.0+0x286/0x320
[ 82.951969] ntfs_fill_super+0x1321/0x1e20
[ 82.952436] ? put_ntfs+0x1d0/0x1d0
[ 82.952822] ? vsprintf+0x20/0x20
[ 82.953188] ? mutex_unlock+0x81/0xd0
[ 82.953379] ? set_blocksize+0x95/0x150
[ 82.954001] get_tree_bdev+0x232/0x370
[ 82.954438] ? put_ntfs+0x1d0/0x1d0
[ 82.954700] ntfs_fs_get_tree+0x15/0x20
[ 82.955049] vfs_get_tree+0x4c/0x130
[ 82.955292] path_mount+0x645/0xfd0
[ 82.955615] ? putname+0x80/0xa0
[ 82.955955] ? finish_automount+0x2e0/0x2e0
[ 82.956310] ? kmem_cache_free+0x110/0x390
[ 82.956723] ? putname+0x80/0xa0
[ 82.957023] do_mount+0xd6/0xf0
[ 82.957411] ? path_mount+0xfd0/0xfd0
[ 82.957638] ? __kasan_check_write+0x14/0x20
[ 82.957948] __x64_sys_mount+0xca/0x110
[ 82.958310] do_syscall_64+0x3b/0x90
[ 82.958719] entry_SYSCALL_64_after_hwframe+0x63/0xcd
[ 82.959341] RIP: 0033:0x7fd0d1ce948a
[ 82.960193] Code: 48 8b 0d 11 fa 2a 00 f7 d8 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 49 89 ca b8 a5 00 00 008
[ 82.961532] RSP: 002b:00007ffe59ff69a8 EFLAGS: 00000202 ORIG_RAX: 00000000000000a5
[ 82.962527] RAX: ffffffffffffffda RBX: 0000564dcc107060 RCX: 00007fd0d1ce948a
[ 82.963266] RDX: 0000564dcc107260 RSI: 0000564dcc1072e0 RDI: 0000564dcc10fce0
[ 82.963686] RBP: 0000000000000000 R08: 0000564dcc107280 R09: 0000000000000020
[ 82.964272] R10: 00000000c0ed0000 R11: 0000000000000202 R12: 0000564dcc10fce0
[ 82.964785] R13: 0000564dcc107260 R14: 0000000000000000 R15: 00000000ffffffff
Signed-off-by: Edward Lo <edward.lo@ambergroup.io>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Added done and undo labels for restoring after errors
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Added comments to code
Added new function run_clone to make a copy of run
Added done and undo labels for restoring after errors
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Added comments to code
Added two undo labels for restoring after errors
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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There are repetitive steps in case of bad inode
This commit wraps them in function
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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attr_load_runs is an internal function
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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In some cases we need to ni_find_attr attr_b
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Fixes xfstest generic/300
Fixes: 4534a70b7056 ("fs/ntfs3: Add headers and misc files")
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Also don't mask EFBIG
Fixes xfstest generic/485
Fixes: 4342306f0f0d ("fs/ntfs3: Add file operations and implementation")
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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This error path needs to call up_write(&ni->file.run_lock) and do some
other clean up before returning.
Fixes: aa30eccb24e5 ("fs/ntfs3: Fallocate (FALLOC_FL_INSERT_RANGE) implementation")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Add functions for inserting hole in file and inserting range in run.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Variable vcn is being assigned a value that is never read, it is
being re-assigned again in the initialization of a for-loop. The
assignment is redundant and can be removed.
Cleans up clang scan build warning:
fs/ntfs3/attrib.c:1176:7: warning: Value stored to 'vcn' during its
initialization is never read [deadcode.DeadStores]
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Reviewed-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Before we haven't kept prealloc for sparse files because we thought that
it will speed up create / write operations.
It lead to situation, when user reserved some space for sparse file,
filled volume, and wasn't able to write in reserved file.
With this commit we keep prealloc.
Now xfstest generic/274 pass.
Fixes: be71b5cba2e6 ("fs/ntfs3: Add attrib operations")
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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This allows to wait only when it's requested.
It speeds up creation of hardlinks.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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We can make code little bit more readable by using min/max macros.
These were found with Coccinelle.
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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We have lot of unnecessary headers in these files. Remove them so that
we help compiler a little bit.
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Use pointer to mount options. We want to do this because we will use new
mount api which will benefit that we have spi and mount options in
different allocations. When we remount we do not have to make whole new
spi it is enough that we will allocate just mount options.
Please note that we can do example remount lot cleaner but things will
change in next patch so this should be just functional.
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Rename now works "Add new name and remove old name".
"Remove old name and add new name" may result in bad inode
if we can't add new name and then can't restore (add) old name.
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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Capitalize comments and end with period for better reading.
Also function comments are now little more kernel-doc style. This way we
can easily convert them to kernel-doc style if we want. Note that these
are not yet complete with this style. Example function comments start
with /* and in kernel-doc style they start /**.
Use imperative mood in function descriptions.
Change words like ntfs -> NTFS, linux -> Linux.
Use "we" not "I" when commenting code.
Signed-off-by: Kari Argillander <kari.argillander@gmail.com>
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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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)
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- ntfs_zalloc(x)
+ kzalloc(x, GFP_NOFS)
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- ntfs_vmalloc(x)
+ kvmalloc(x, GFP_NOFS)
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- ntfs_free(x)
+ kfree(x)
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- ntfs_vfree(x)
+ kvfree(x)
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- 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>
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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))
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- QuadAlign(x)
+ ALIGN(x, 8)
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- #define IsQuadAligned(n) (!((size_t)(n)&7u))
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- IsQuadAligned(x)
+ IS_ALIGNED(x, 8)
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- #define Quad2Align(n) (((n) + 15u) & (~15u))
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- Quad2Align(x)
+ ALIGN(x, 16)
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- #define IsQuad2Aligned(n) (!((size_t)(n)&15u))
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- IsQuad2Aligned(x)
+ IS_ALIGNED(x, 16)
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- #define Quad4Align(n) (((n) + 31u) & (~31u))
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- Quad4Align(x)
+ ALIGN(x, 32)
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- #define IsSizeTAligned(n) (!((size_t)(n) & (sizeof(size_t) - 1)))
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- IsSizeTAligned(x)
+ IS_ALIGNED(x, sizeof(size_t))
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- #define DwordAlign(n) (((n) + 3u) & (~3u))
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- DwordAlign(x)
+ ALIGN(x, 4)
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- #define IsDwordAligned(n) (!((size_t)(n)&3u))
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- IsDwordAligned(x)
+ IS_ALIGNED(x, 4)
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- #define WordAlign(n) (((n) + 1u) & (~1u))
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- WordAlign(x)
+ ALIGN(x, 2)
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- #define IsWordAligned(n) (!((size_t)(n)&1u))
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- IsWordAligned(x)
+ IS_ALIGNED(x, 2)
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)
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>
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This adds attrib operations
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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