/*
 * Some non-inline ceph helpers
 */
#include <linux/module.h>
#include <linux/ceph/types.h>

/*
 * return true if @layout appears to be valid
 */
int ceph_file_layout_is_valid(const struct ceph_file_layout *layout)
{
	__u32 su = layout->stripe_unit;
	__u32 sc = layout->stripe_count;
	__u32 os = layout->object_size;

	/* stripe unit, object size must be non-zero, 64k increment */
	if (!su || (su & (CEPH_MIN_STRIPE_UNIT-1)))
		return 0;
	if (!os || (os & (CEPH_MIN_STRIPE_UNIT-1)))
		return 0;
	/* object size must be a multiple of stripe unit */
	if (os < su || os % su)
		return 0;
	/* stripe count must be non-zero */
	if (!sc)
		return 0;
	return 1;
}

void ceph_file_layout_from_legacy(struct ceph_file_layout *fl,
				  struct ceph_file_layout_legacy *legacy)
{
	fl->stripe_unit = le32_to_cpu(legacy->fl_stripe_unit);
	fl->stripe_count = le32_to_cpu(legacy->fl_stripe_count);
	fl->object_size = le32_to_cpu(legacy->fl_object_size);
	fl->pool_id = le32_to_cpu(legacy->fl_pg_pool);
	if (fl->pool_id == 0 && fl->stripe_unit == 0 &&
	    fl->stripe_count == 0 && fl->object_size == 0)
		fl->pool_id = -1;
}
EXPORT_SYMBOL(ceph_file_layout_from_legacy);

void ceph_file_layout_to_legacy(struct ceph_file_layout *fl,
				struct ceph_file_layout_legacy *legacy)
{
	legacy->fl_stripe_unit = cpu_to_le32(fl->stripe_unit);
	legacy->fl_stripe_count = cpu_to_le32(fl->stripe_count);
	legacy->fl_object_size = cpu_to_le32(fl->object_size);
	if (fl->pool_id >= 0)
		legacy->fl_pg_pool = cpu_to_le32(fl->pool_id);
	else
		legacy->fl_pg_pool = 0;
}
EXPORT_SYMBOL(ceph_file_layout_to_legacy);

int ceph_flags_to_mode(int flags)
{
	int mode;

#ifdef O_DIRECTORY  /* fixme */
	if ((flags & O_DIRECTORY) == O_DIRECTORY)
		return CEPH_FILE_MODE_PIN;
#endif

	switch (flags & O_ACCMODE) {
	case O_WRONLY:
		mode = CEPH_FILE_MODE_WR;
		break;
	case O_RDONLY:
		mode = CEPH_FILE_MODE_RD;
		break;
	case O_RDWR:
	case O_ACCMODE: /* this is what the VFS does */
		mode = CEPH_FILE_MODE_RDWR;
		break;
	}
#ifdef O_LAZY
	if (flags & O_LAZY)
		mode |= CEPH_FILE_MODE_LAZY;
#endif

	return mode;
}
EXPORT_SYMBOL(ceph_flags_to_mode);

int ceph_caps_for_mode(int mode)
{
	int caps = CEPH_CAP_PIN;

	if (mode & CEPH_FILE_MODE_RD)
		caps |= CEPH_CAP_FILE_SHARED |
			CEPH_CAP_FILE_RD | CEPH_CAP_FILE_CACHE;
	if (mode & CEPH_FILE_MODE_WR)
		caps |= CEPH_CAP_FILE_EXCL |
			CEPH_CAP_FILE_WR | CEPH_CAP_FILE_BUFFER |
			CEPH_CAP_AUTH_SHARED | CEPH_CAP_AUTH_EXCL |
			CEPH_CAP_XATTR_SHARED | CEPH_CAP_XATTR_EXCL;
	if (mode & CEPH_FILE_MODE_LAZY)
		caps |= CEPH_CAP_FILE_LAZYIO;

	return caps;
}
EXPORT_SYMBOL(ceph_caps_for_mode);
net-next.git/commit/?id=f15c323397f87b978f4057eb1462efcbf487493a'>root</a>/<a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=f15c323397f87b978f4057eb1462efcbf487493a'>drivers</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='f15c323397f87b978f4057eb1462efcbf487493a'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><table summary='commit info' class='commit-info'>
<tr><th>author</th><td>Mauro Carvalho Chehab &lt;mchehab@s-opensource.com&gt;</td><td class='right'>2016-12-05 09:41:41 -0200</td></tr>
<tr><th>committer</th><td>Jonathan Corbet &lt;corbet@lwn.net&gt;</td><td class='right'>2016-12-05 14:21:24 -0700</td></tr>
<tr><th>commit</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=f15c323397f87b978f4057eb1462efcbf487493a'>f15c323397f87b978f4057eb1462efcbf487493a</a> (<a href='/cgit.cgi/linux/net-next.git/patch/drivers?id=f15c323397f87b978f4057eb1462efcbf487493a'>patch</a>)</td></tr>
<tr><th>tree</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/tree/?id=f15c323397f87b978f4057eb1462efcbf487493a'>571deb44f3584bec33ab217767acdacde4123e14</a> /<a href='/cgit.cgi/linux/net-next.git/tree/drivers?id=f15c323397f87b978f4057eb1462efcbf487493a'>drivers</a></td></tr>
<tr><th>parent</th><td colspan='2' class='oid'><a href='/cgit.cgi/linux/net-next.git/commit/drivers?id=20b786eb2598ac10c9743535b65611ce808c8d71'>20b786eb2598ac10c9743535b65611ce808c8d71</a> (<a href='/cgit.cgi/linux/net-next.git/diff/drivers?id=f15c323397f87b978f4057eb1462efcbf487493a&amp;id2=20b786eb2598ac10c9743535b65611ce808c8d71'>diff</a>)</td></tr></table>
<div class='commit-subject'>scripts: add a script to check if Documentation/00-INDEX is sane</div><div class='commit-msg'>It is easy to forget adding/removing entries at the
Documentation/00-INDEX file. In a matter of fact, even before
ReST conversion, people use to forget adding things here, as
there are lots of missing stuff out there.

Now that we're doing a hard work converting entries to ReST,
and while this hole file is not outdated, it is good to have
some tool that would help to verify that this file is kept
updated.

Signed-off-by: Mauro Carvalho Chehab &lt;mchehab@s-opensource.com&gt;
Signed-off-by: Jonathan Corbet &lt;corbet@lwn.net&gt;
</div><div class='diffstat-header'><a href='/cgit.cgi/linux/net-next.git/diff/?id=f15c323397f87b978f4057eb1462efcbf487493a'>Diffstat</a> (limited to 'drivers')</div><table summary='diffstat' class='diffstat'>