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| author | Roger Pau Monne <roger.pau@citrix.com> | 2013-06-21 14:56:53 +0400 |
|---|---|---|
| committer | Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> | 2013-06-21 23:58:44 +0400 |
| commit | 2d9105433ff471d2c688817e98804029c074a623 (patch) | |
| tree | 7794f24be80ffaad203616bf71162bc6b54c133f /drivers/block/xen-blkfront.c | |
| parent | 8e3f8755545cc4a7f4da8e9ef76d6d32e0dca576 (diff) | |
| download | linux-2d9105433ff471d2c688817e98804029c074a623.tar.xz | |
xen-blkback: workaround compiler bug in gcc 4.1
The code generat with gcc (GCC) 4.1.2 20080704 (Red Hat 4.1.2-54)
creates an unbound loop for the second foreach_grant_safe loop in
purge_persistent_gnt.
The workaround is to avoid having this second loop and instead
perform all the work inside the first loop by adding a new variable,
clean_used, that will be set when all the desired persistent grants
have been removed and we need to iterate over the remaining ones to
remove the WAS_ACTIVE flag.
Signed-off-by: Roger Pau Monné <roger.pau@citrix.com>
Reported-by: Tom O'Neill <toneill@vmem.com>
Reported-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/block/xen-blkfront.c')
0 files changed, 0 insertions, 0 deletions