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https://github.com/FEX-Emu/linux.git
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53f2c4a8fd
New features include:
- Rewrite the O_DIRECT code so that it can share the same coalescing and
pNFS functionality as the page cache code.
- Allow the server to provide hints as to when we should use pNFS, and
when it is more efficient to read and write through the metadata
server.
- NFS cache consistency updates:
- Use the ctime to emulate a change attribute for NFSv2/v3 so that
all NFS versions can share the same cache management code.
- New cache management code will only look at the change attribute
and size attribute when deciding whether or not our cached data
is still valid or not.
- Don't request NFSv4 post-op attributes on writes in cases such as
O_DIRECT, where we don't care about data cache consistency, or
when we have a write delegation, and know that our cache is
still consistent.
- Don't request NFSv4 post-op attributes on operations such as
COMMIT, where there are no expected metadata updates.
- Don't request NFSv4 directory post-op attributes in cases where
the operations themselves already return change attribute updates:
i.e. operations such as OPEN, CREATE, REMOVE, LINK and RENAME.
- Speed up 'ls' and friends by using READDIR rather than READDIRPLUS
if we detect no attempts to lookup filenames.
- Improve the code sharing between NFSv2/v3 and v4 mounts
- NFSv4.1 state management efficiency improvements
- More patches in preparation for NFSv4/v4.1 migration functionality.
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Merge tag 'nfs-for-3.5-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs
Pull NFS client updates from Trond Myklebust:
"New features include:
- Rewrite the O_DIRECT code so that it can share the same coalescing
and pNFS functionality as the page cache code.
- Allow the server to provide hints as to when we should use pNFS,
and when it is more efficient to read and write through the
metadata server.
- NFS cache consistency updates:
* Use the ctime to emulate a change attribute for NFSv2/v3 so that
all NFS versions can share the same cache management code.
* New cache management code will only look at the change attribute
and size attribute when deciding whether or not our cached data
is still valid or not.
* Don't request NFSv4 post-op attributes on writes in cases such as
O_DIRECT, where we don't care about data cache consistency, or
when we have a write delegation, and know that our cache is still
consistent.
* Don't request NFSv4 post-op attributes on operations such as
COMMIT, where there are no expected metadata updates.
* Don't request NFSv4 directory post-op attributes in cases where
the operations themselves already return change attribute
updates: i.e. operations such as OPEN, CREATE, REMOVE, LINK and
RENAME.
- Speed up 'ls' and friends by using READDIR rather than READDIRPLUS
if we detect no attempts to lookup filenames.
- Improve the code sharing between NFSv2/v3 and v4 mounts
- NFSv4.1 state management efficiency improvements
- More patches in preparation for NFSv4/v4.1 migration functionality."
Fix trivial conflict in fs/nfs/nfs4proc.c that was due to the dcache
qstr name initialization changes (that made the length/hash a 64-bit
union)
* tag 'nfs-for-3.5-1' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: (146 commits)
NFSv4: Add debugging printks to state manager
NFSv4: Map NFS4ERR_SHARE_DENIED into an EACCES error instead of EIO
NFSv4: update_changeattr does not need to set NFS_INO_REVAL_PAGECACHE
NFSv4.1: nfs4_reset_session should use nfs4_handle_reclaim_lease_error
NFSv4.1: Handle other occurrences of NFS4ERR_CONN_NOT_BOUND_TO_SESSION
NFSv4.1: Handle NFS4ERR_CONN_NOT_BOUND_TO_SESSION in the state manager
NFSv4.1: Handle errors in nfs4_bind_conn_to_session
NFSv4.1: nfs4_bind_conn_to_session should drain the session
NFSv4.1: Don't clobber the seqid if exchange_id returns a confirmed clientid
NFSv4.1: Add DESTROY_CLIENTID
NFSv4.1: Ensure we use the correct credentials for bind_conn_to_session
NFSv4.1: Ensure we use the correct credentials for session create/destroy
NFSv4.1: Move NFSPROC4_CLNT_BIND_CONN_TO_SESSION to the end of the operations
NFSv4.1: Handle NFS4ERR_SEQ_MISORDERED when confirming the lease
NFSv4: When purging the lease, we must clear NFS4CLNT_LEASE_CONFIRM
NFSv4: Clean up the error handling for nfs4_reclaim_lease
NFSv4.1: Exchange ID must use GFP_NOFS allocation mode
nfs41: Use BIND_CONN_TO_SESSION for CB_PATH_DOWN*
nfs4.1: add BIND_CONN_TO_SESSION operation
NFSv4.1 test the mdsthreshold hint parameters
...
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