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Xiubo Li 1dd8d47081 ceph: metrics for opened files, pinned caps and opened inodes
In client for each inode, it may have many opened files and may
have been pinned in more than one MDS servers. And some inodes
are idle, which have no any opened files.

This patch will show these metrics in the debugfs, likes:

item                               total
-----------------------------------------
opened files  / total inodes       14 / 5
pinned i_caps / total inodes       7  / 5
opened inodes / total inodes       3  / 5

Will send these metrics to ceph, which will be used by the `fs top`,
later.

[ jlayton: drop unrelated hunk, count hashed inodes instead of
           allocated ones ]

URL: https://tracker.ceph.com/issues/47005
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12 15:29:26 +02:00
arch Two fixes: 2020-10-11 10:53:37 -07:00
block
certs
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Documentation Two fixes: 2020-10-11 10:53:37 -07:00
drivers Merge branch 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux 2020-10-10 16:09:12 -07:00
fs ceph: metrics for opened files, pinned caps and opened inodes 2020-10-12 15:29:26 +02:00
include libceph: multiple workspaces for CRUSH computations 2020-10-12 15:29:26 +02:00
init
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kernel Fix a bug that can cause a lockup if a CPU is offline. 2020-10-11 10:43:37 -07:00
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LICENSES
mm mm: khugepaged: recalculate min_free_kbytes after memory hotplug as expected by khugepaged 2020-10-11 10:31:11 -07:00
net libceph: multiple workspaces for CRUSH computations 2020-10-12 15:29:26 +02:00
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.mailmap MAINTAINERS: Antoine Tenart's email address 2020-10-11 10:31:10 -07:00
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MAINTAINERS MAINTAINERS: Antoine Tenart's email address 2020-10-11 10:31:10 -07:00
Makefile Linux 5.9 2020-10-11 14:15:50 -07:00
README

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.