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buf.h: Fix declaration of unmapped_buf

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For architectures with a small-data area, the __read_mostly section must
present at the object declaration.

(emaste note: This does not appear to have an affect within FreeBSD, but
may be needed by downstream projects that handle __read_mostly /
__section(".data.read_mostly") differently.)

Pull Request:	https://github.com/freebsd/freebsd-src/pull/608
This commit is contained in:
Sebastian Huber 2022-07-19 20:09:43 +02:00 committed by Ed Maste
parent 01f11ee1c5
commit ede6c6c043
1 changed files with 2 additions and 1 deletions
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3
sys/sys/buf.h
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@ -522,7 +522,8 @@ extern int bdwriteskip;
extern int dirtybufferflushes;
extern int altbufferflushes;
extern int nswbuf; /* Number of swap I/O buffer headers. */
extern caddr_t unmapped_buf; /* Data address for unmapped buffers. */
extern caddr_t __read_mostly unmapped_buf; /* Data address for unmapped
buffers. */
static inline int
buf_mapped(struct buf *bp)