254 Commits

Author	SHA1	Message	Date
Yehuda Sadeh	972f0d3ab1	ceph: fix short synchronous reads ... Zeroing of holes was not done correctly: page_off was miscalculated and zeroing the tail didn't not adjust the 'read' value to include the zeroed portion. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>	2010-02-11 11:48:49 -08:00
Yehuda Sadeh	6a4ef48103	ceph: fix copy_user_to_page_vector() ... The function was broken in the case where there was more than one page involved, broke the ceph sync_write case. Signed-off-by: Yehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: Sage Weil <sage@newdream.net>	2010-01-06 16:05:20 -08:00
Sage Weil	6a18be16f7	ceph: fix sparse endian warning ... Use the __le macro, even though for -1 it doesn't matter. Signed-off-by: Sage Weil <sage@newdream.net>	2009-11-04 16:36:12 -08:00
Sage Weil	124e68e740	ceph: file operations ... File open and close operations, and read and write methods that ensure we have obtained the proper capabilities from the MDS cluster before performing IO on a file. We take references on held capabilities for the duration of the read/write to avoid prematurely releasing them back to the MDS. We implement two main paths for read and write: one that is buffered (and uses generic_aio_{read,write}), and one that is fully synchronous and blocking (operating either on a __user pointer or, if O_DIRECT, directly on user pages). Signed-off-by: Sage Weil <sage@newdream.net>	2009-10-06 11:31:08 -07:00