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NFSv4.2: Serialise O_DIRECT i/o and copy range

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Ensure that all O_DIRECT reads and writes complete before copying a file
range, so that the destination is up to date.

Fixes: a5864c999d ("NFS: Do not serialise O_DIRECT reads and writes")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
This commit is contained in:
Trond Myklebust 2025-09-06 10:54:13 -04:00
parent c80ebeba11
commit ca247c8990
1 changed files with 1 additions and 0 deletions
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fs/nfs/nfs42proc.c
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@ -445,6 +445,7 @@ static ssize_t _nfs42_proc_copy(struct file *src,
return status;
}
nfs_file_block_o_direct(NFS_I(dst_inode));
status = nfs_sync_inode(dst_inode);
if (status)
return status;