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400e1286c0
Now that the fscache API has been reworked and simplified, change ceph over to use it. With the old API, we would only instantiate a cookie when the file was open for reads. Change it to instantiate the cookie when the inode is instantiated and call use/unuse when the file is opened/closed. Also, ensure we resize the cached data on truncates, and invalidate the cache in response to the appropriate events. This will allow us to plumb in write support later. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: David Howells <dhowells@redhat.com> Link: https://lore.kernel.org/r/20211129162907.149445-2-jlayton@kernel.org/ # v1 Link: https://lore.kernel.org/r/20211207134451.66296-2-jlayton@kernel.org/ # v2 Link: https://lore.kernel.org/r/163906984277.143852.14697110691303589000.stgit@warthog.procyon.org.uk/ # v2 Link: https://lore.kernel.org/r/163967188351.1823006.5065634844099079351.stgit@warthog.procyon.org.uk/ # v3 Link: https://lore.kernel.org/r/164021581427.640689.14128682147127509264.stgit@warthog.procyon.org.uk/ # v4
52 lines
1.5 KiB
Plaintext
52 lines
1.5 KiB
Plaintext
# SPDX-License-Identifier: GPL-2.0-only
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config CEPH_FS
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tristate "Ceph distributed file system"
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depends on INET
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select CEPH_LIB
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select LIBCRC32C
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select CRYPTO_AES
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select CRYPTO
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select NETFS_SUPPORT
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default n
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help
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Choose Y or M here to include support for mounting the
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experimental Ceph distributed file system. Ceph is an extremely
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scalable file system designed to provide high performance,
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reliable access to petabytes of storage.
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More information at https://ceph.io/.
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If unsure, say N.
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if CEPH_FS
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config CEPH_FSCACHE
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bool "Enable Ceph client caching support"
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depends on CEPH_FS=m && FSCACHE || CEPH_FS=y && FSCACHE=y
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help
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Choose Y here to enable persistent, read-only local
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caching support for Ceph clients using FS-Cache
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endif
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config CEPH_FS_POSIX_ACL
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bool "Ceph POSIX Access Control Lists"
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depends on CEPH_FS
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select FS_POSIX_ACL
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help
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POSIX Access Control Lists (ACLs) support permissions for users and
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groups beyond the owner/group/world scheme.
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If you don't know what Access Control Lists are, say N
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config CEPH_FS_SECURITY_LABEL
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bool "CephFS Security Labels"
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depends on CEPH_FS && SECURITY
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help
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Security labels support alternative access control models
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implemented by security modules like SELinux. This option
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enables an extended attribute handler for file security
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labels in the Ceph filesystem.
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If you are not using a security module that requires using
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extended attributes for file security labels, say N.
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