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authorMike Snitzer <snitzer@redhat.com>2010-11-08 14:39:12 +0100
committerJens Axboe <jaxboe@fusionio.com>2010-11-10 14:40:53 +0100
commit77304d2abac6101f7249754ffdd4421258877ab0 (patch)
tree8ee5914529d70120528a630a8e904c22f8c4f98c /block/blk-cgroup.h
parent90fdb0b98a62d78a0650b9fd3ddc58a48f71d740 (diff)
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block: read i_size with i_size_read()
Convert direct reads of an inode's i_size to using i_size_read(). i_size_{read,write} use a seqcount to protect reads from accessing incomple writes. Concurrent i_size_write()s require mutual exclussion to protect the seqcount that is used by i_size_{read,write}. But i_size_read() callers do not need to use additional locking. Signed-off-by: Mike Snitzer <snitzer@redhat.com> Acked-by: NeilBrown <neilb@suse.de> Acked-by: Lars Ellenberg <lars.ellenberg@linbit.com> Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block/blk-cgroup.h')
0 files changed, 0 insertions, 0 deletions