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| author | Konstantin Belousov <kib@FreeBSD.org> | 2012-02-21 01:05:12 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2012-02-21 01:05:12 +0000 |
| commit | 526d0bd547574b185147f03c13e2db7abe566a08 (patch) | |
| tree | d0d078391c4959fc08545db4ab619daadd9cf1d9 /sys/sys/systm.h | |
| parent | 57a82ba4d95159d3623b0d401cfc3cc8f6357c28 (diff) | |
| download | src-526d0bd547574b185147f03c13e2db7abe566a08.tar.gz src-526d0bd547574b185147f03c13e2db7abe566a08.zip | |
Fix found places where uio_resid is truncated to int.
Add the sysctl debug.iosize_max_clamp, enabled by default. Setting the
sysctl to zero allows to perform the SSIZE_MAX-sized i/o requests from
the usermode.
Discussed with: bde, das (previous versions)
MFC after: 1 month
Notes
Notes:
svn path=/head/; revision=231949
Diffstat (limited to 'sys/sys/systm.h')
| -rw-r--r-- | sys/sys/systm.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sys/sys/systm.h b/sys/sys/systm.h index 47b974a760fd..2773da80bd94 100644 --- a/sys/sys/systm.h +++ b/sys/sys/systm.h @@ -133,6 +133,9 @@ extern char **kenvp; extern const void *zero_region; /* address space maps to a zeroed page */ +extern int iosize_max_clamp; +#define IOSIZE_MAX (iosize_max_clamp ? INT_MAX : SSIZE_MAX) + /* * General function declarations. */ |