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Now ntfs3 locks mutex for smaller time.
Theoretically in successful cases those locks aren't needed at all.
But proving the same for error cases is difficult.
So instead of removing them we just move them.
Reviewed-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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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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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 file operations and implementation
Signed-off-by: Konstantin Komarov <almaz.alexandrovich@paragon-software.com>
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