NFS: Protect against 'eof page pollution'

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This commit fixes the failing xfstest 'generic/363'.

When the user mmaps() an area that extends beyond the end of file, and
proceeds to write data into the folio that straddles that eof, we're
required to discard that folio data if the user calls some function that
extends the file length.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

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This commit is contained in:

Trond Myklebust 2025-09-04 18:46:16 -04:00

parent 5a46d2339a

commit b1817b18ff

5 changed files with 54 additions and 5 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

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33

fs/nfs/file.c

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9

fs/nfs/inode.c

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2

fs/nfs/internal.h

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14

fs/nfs/nfs42proc.c

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1

fs/nfs/nfstrace.h

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