<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/fs/adfs/dir.c, branch v4.4.153</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>adfs: add __printf verification, fix format/argument mismatches</title>
<updated>2014-08-08T22:57:24+00:00</updated>
<author>
<name>Joe Perches</name>
<email>joe@perches.com</email>
</author>
<published>2014-08-08T21:22:26+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=19bdd41a57e1418b8661148125e9b6d99f468c1b'/>
<id>19bdd41a57e1418b8661148125e9b6d99f468c1b</id>
<content type='text'>
Might as well do the right thing.

Signed-off-by: Joe Perches &lt;joe@perches.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Might as well do the right thing.

Signed-off-by: Joe Perches &lt;joe@perches.com&gt;
Signed-off-by: Andrew Morton &lt;akpm@linux-foundation.org&gt;
Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>Don't pass inode to -&gt;d_hash() and -&gt;d_compare()</title>
<updated>2013-06-29T08:57:36+00:00</updated>
<author>
<name>Linus Torvalds</name>
<email>torvalds@linux-foundation.org</email>
</author>
<published>2013-05-21T22:22:44+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=da53be12bbb4fabbe2e9f6f908de0cf478b5161d'/>
<id>da53be12bbb4fabbe2e9f6f908de0cf478b5161d</id>
<content type='text'>
Instances either don't look at it at all (the majority of cases) or
only want it to find the superblock (which can be had as dentry-&gt;d_sb).
A few cases that want more are actually safe with dentry-&gt;d_inode -
the only precaution needed is the check that it hadn't been replaced with
NULL by rmdir() or by overwriting rename(), which case should be simply
treated as cache miss.

Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Instances either don't look at it at all (the majority of cases) or
only want it to find the superblock (which can be had as dentry-&gt;d_sb).
A few cases that want more are actually safe with dentry-&gt;d_inode -
the only precaution needed is the check that it hadn't been replaced with
NULL by rmdir() or by overwriting rename(), which case should be simply
treated as cache miss.

Signed-off-by: Linus Torvalds &lt;torvalds@linux-foundation.org&gt;
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>[readdir] convert adfs</title>
<updated>2013-06-29T08:56:44+00:00</updated>
<author>
<name>Al Viro</name>
<email>viro@zeniv.linux.org.uk</email>
</author>
<published>2013-05-17T21:30:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=2638ffbac9e2f411e911ff8194dc8d69c46f9f78'/>
<id>2638ffbac9e2f411e911ff8194dc8d69c46f9f78</id>
<content type='text'>
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>new helper: file_inode(file)</title>
<updated>2013-02-23T04:31:31+00:00</updated>
<author>
<name>Al Viro</name>
<email>viro@zeniv.linux.org.uk</email>
</author>
<published>2013-01-23T22:07:38+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=496ad9aa8ef448058e36ca7a787c61f2e63f0f54'/>
<id>496ad9aa8ef448058e36ca7a787c61f2e63f0f54</id>
<content type='text'>
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>stop passing nameidata to -&gt;lookup()</title>
<updated>2012-07-14T12:34:32+00:00</updated>
<author>
<name>Al Viro</name>
<email>viro@zeniv.linux.org.uk</email>
</author>
<published>2012-06-10T21:13:09+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=00cd8dd3bf95f2cc8435b4cac01d9995635c6d0b'/>
<id>00cd8dd3bf95f2cc8435b4cac01d9995635c6d0b</id>
<content type='text'>
Just the flags; only NFS cares even about that, but there are
legitimate uses for such argument.  And getting rid of that
completely would require splitting -&gt;lookup() into a couple
of methods (at least), so let's leave that alone for now...

Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Just the flags; only NFS cares even about that, but there are
legitimate uses for such argument.  And getting rid of that
completely would require splitting -&gt;lookup() into a couple
of methods (at least), so let's leave that alone for now...

Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>adfs: remove the big kernel lock</title>
<updated>2011-03-01T23:02:38+00:00</updated>
<author>
<name>Arnd Bergmann</name>
<email>arnd@arndb.de</email>
</author>
<published>2011-01-22T19:05:05+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=4688a066ecf60086ea82f68edb3b036b567d2c08'/>
<id>4688a066ecf60086ea82f68edb3b036b567d2c08</id>
<content type='text'>
According to Russell King, adfs was written to not require the big
kernel lock, and all inode updates are done under adfs_dir_lock.

All other metadata in adfs is read-only and does not require locking.
The use of the BKL is the result of various pushdowns from the VFS
operations.

Signed-off-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Acked-by: Russell King &lt;rmk@arm.linux.org.uk&gt;
Cc: Stuart Swales &lt;stuart.swales.croftnuisk@gmail.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
According to Russell King, adfs was written to not require the big
kernel lock, and all inode updates are done under adfs_dir_lock.

All other metadata in adfs is read-only and does not require locking.
The use of the BKL is the result of various pushdowns from the VFS
operations.

Signed-off-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
Acked-by: Russell King &lt;rmk@arm.linux.org.uk&gt;
Cc: Stuart Swales &lt;stuart.swales.croftnuisk@gmail.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>switch adfs</title>
<updated>2011-01-13T01:02:45+00:00</updated>
<author>
<name>Al Viro</name>
<email>viro@zeniv.linux.org.uk</email>
</author>
<published>2010-12-18T16:20:57+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=96e1391414f80a8a3bae74ddf58d3c2870e304f0'/>
<id>96e1391414f80a8a3bae74ddf58d3c2870e304f0</id>
<content type='text'>
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Signed-off-by: Al Viro &lt;viro@zeniv.linux.org.uk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>fs: dcache reduce branches in lookup path</title>
<updated>2011-01-07T06:50:28+00:00</updated>
<author>
<name>Nick Piggin</name>
<email>npiggin@kernel.dk</email>
</author>
<published>2011-01-07T06:49:55+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=fb045adb99d9b7c562dc7fef834857f78249daa1'/>
<id>fb045adb99d9b7c562dc7fef834857f78249daa1</id>
<content type='text'>
Reduce some branches and memory accesses in dcache lookup by adding dentry
flags to indicate common d_ops are set, rather than having to check them.
This saves a pointer memory access (dentry-&gt;d_op) in common path lookup
situations, and saves another pointer load and branch in cases where we
have d_op but not the particular operation.

Patched with:

git grep -E '[.&gt;]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)-&gt;d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&amp;\1, \2);/' -i

Signed-off-by: Nick Piggin &lt;npiggin@kernel.dk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Reduce some branches and memory accesses in dcache lookup by adding dentry
flags to indicate common d_ops are set, rather than having to check them.
This saves a pointer memory access (dentry-&gt;d_op) in common path lookup
situations, and saves another pointer load and branch in cases where we
have d_op but not the particular operation.

Patched with:

git grep -E '[.&gt;]([[:space:]])*d_op([[:space:]])*=' | xargs sed -e 's/\([^\t ]*\)-&gt;d_op = \(.*\);/d_set_d_op(\1, \2);/' -e 's/\([^\t ]*\)\.d_op = \(.*\);/d_set_d_op(\&amp;\1, \2);/' -i

Signed-off-by: Nick Piggin &lt;npiggin@kernel.dk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>fs: change d_hash for rcu-walk</title>
<updated>2011-01-07T06:50:20+00:00</updated>
<author>
<name>Nick Piggin</name>
<email>npiggin@kernel.dk</email>
</author>
<published>2011-01-07T06:49:28+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=b1e6a015a580ad145689ad1d6b4aa0e03e6c868b'/>
<id>b1e6a015a580ad145689ad1d6b4aa0e03e6c868b</id>
<content type='text'>
Change d_hash so it may be called from lock-free RCU lookups. See similar
patch for d_compare for details.

For in-tree filesystems, this is just a mechanical change.

Signed-off-by: Nick Piggin &lt;npiggin@kernel.dk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Change d_hash so it may be called from lock-free RCU lookups. See similar
patch for d_compare for details.

For in-tree filesystems, this is just a mechanical change.

Signed-off-by: Nick Piggin &lt;npiggin@kernel.dk&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>fs: change d_compare for rcu-walk</title>
<updated>2011-01-07T06:50:19+00:00</updated>
<author>
<name>Nick Piggin</name>
<email>npiggin@kernel.dk</email>
</author>
<published>2011-01-07T06:49:27+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=621e155a3591962420eacdd39f6f0aa29ceb221e'/>
<id>621e155a3591962420eacdd39f6f0aa29ceb221e</id>
<content type='text'>
Change d_compare so it may be called from lock-free RCU lookups. This
does put significant restrictions on what may be done from the callback,
however there don't seem to have been any problems with in-tree fses.
If some strange use case pops up that _really_ cannot cope with the
rcu-walk rules, we can just add new rcu-unaware callbacks, which would
cause name lookup to drop out of rcu-walk mode.

For in-tree filesystems, this is just a mechanical change.

Signed-off-by: Nick Piggin &lt;npiggin@kernel.dk&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Change d_compare so it may be called from lock-free RCU lookups. This
does put significant restrictions on what may be done from the callback,
however there don't seem to have been any problems with in-tree fses.
If some strange use case pops up that _really_ cannot cope with the
rcu-walk rules, we can just add new rcu-unaware callbacks, which would
cause name lookup to drop out of rcu-walk mode.

For in-tree filesystems, this is just a mechanical change.

Signed-off-by: Nick Piggin &lt;npiggin@kernel.dk&gt;
</pre>
</div>
</content>
</entry>
</feed>
