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close.2: Minor text reworking 

Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2016-12-06 15:48:54 +01:00
parent 73c922eac8
commit 7155aa7750
1 changed files with 7 additions and 8 deletions
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15
man2/close.2
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@ -109,7 +109,9 @@ diagnostic purposes.
.\" deallocated and therefore is no longer valid.
Retrying the
.BR close ()
after an error is the wrong thing to do,
after an error such as
.BR EINTR
is the wrong thing to do,
.\" The file descriptor is released early in close();
.\" close() ==> __close_fd():
.\" __put_unused_fd() ==> __clear_open_fd()
@ -119,17 +121,14 @@ after an error is the wrong thing to do,
.\" cleared for re-use.
since this may cause a reused file descriptor
from another thread to be closed.
(The kernel releases the file descriptor early in the close
This can occur because the Linux kernel
.I always
releases the file descriptor early in the close
operation, freeing it for reuse;
the steps that may return an error,
.\" filp_close()
such as flushing data to the filesystem or device,
occur only later in the close operation.)
In particular,
.BR close ()
should not be retried after an
.B EINTR
error.
occur only later in the close operation.
A careful programmer who wants to know about I/O errors may precede
.BR close ()