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fcntl.2: Note kernel version for F_SEAL_FUTURE_WRITE 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
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Michael Kerrisk 2020-02-08 13:03:34 +01:00
parent e9a2c239b3
commit e1cd30eb5e
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man2/fcntl.2
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@ -1526,7 +1526,7 @@ Furthermore, if there are any asynchronous I/O operations
pending on the file,
all outstanding writes will be discarded.
.TP
.BR F_SEAL_FUTURE_WRITE
.BR F_SEAL_FUTURE_WRITE " (since Linux 5.1)"
If this seal is set, the contents of the file can be modified only from
existing writable mappings that were created prior to the seal being set.
Any attempt to create a new writable mapping on the file via