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| author | David Sterba <dsterba@suse.cz> | 2012-01-26 15:01:12 -0500 |
|---|---|---|
| committer | David Sterba <dsterba@suse.cz> | 2012-02-15 16:40:25 +0100 |
| commit | c08782dacd7a098f2b8bca7f4a57a5b402e9e1e5 (patch) | |
| tree | f86a4875ac874cd3ddd0cc2eae85701e87105a72 /lib/syscall.c | |
| parent | 87826df0ec36fc28884b4ddbb3f3af41c4c2008f (diff) | |
btrfs: fix structs where bitfields and spinlock/atomic share 8B word
On ia64, powerpc64 and sparc64 the bitfield is modified through a RMW cycle and current
gcc rewrites the adjacent 4B word, which in case of a spinlock or atomic has
disaterous effect.
https://lkml.org/lkml/2012/2/1/220
Signed-off-by: David Sterba <dsterba@suse.cz>
Diffstat (limited to 'lib/syscall.c')
0 files changed, 0 insertions, 0 deletions