- 08 5月, 2012 2 次提交
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由 Sage Weil 提交于
Both of these methods perform similar checks; move that code to a helper so that we can ensure the checks are consistent. Reviewed-by: NAlex Elder <elder@inktank.com> Signed-off-by: NSage Weil <sage@inktank.com>
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由 Sage Weil 提交于
This was an ill-conceived feature that has been removed from Ceph. Do this gracefully: - reject attempts to specify a preferred_osd via the ioctl - stop exposing this information via virtual xattrs - always fill in -1 for requests, in case we talk to an older server - don't calculate preferred_osd placements/pgids Reviewed-by: NAlex Elder <elder@inktank.com> Signed-off-by: NSage Weil <sage@inktank.com>
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- 08 12月, 2011 1 次提交
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由 Sage Weil 提交于
We have been using i_lock to protect all kinds of data structures in the ceph_inode_info struct, including lists of inodes that we need to iterate over while avoiding races with inode destruction. That requires grabbing a reference to the inode with the list lock protected, but igrab() now takes i_lock to check the inode flags. Changing the list lock ordering would be a painful process. However, using a ceph-specific i_ceph_lock in the ceph inode instead of i_lock is a simple mechanical change and avoids the ordering constraints imposed by igrab(). Reported-by: NAmon Ott <a.ott@m-privacy.de> Signed-off-by: NSage Weil <sage@newdream.net>
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- 26 10月, 2011 1 次提交
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由 Greg Farnum 提交于
Previously we were validating the passed-in stripe unit, object size, and stripe count against each other (and not testing most other stuff). Instead, make sure that the composed previous layout and new values are valid, and only send the new values to the MDS. This lets users change the pool without setting the whole layout, for instance. Signed-off-by: NGreg Farnum <gregory.farnum@dreamhost.com>
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- 27 7月, 2011 2 次提交
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由 Sage Weil 提交于
d_parent is protected by d_lock: use it when looking up a dentry's parent directory inode. Also take a reference and drop it in the caller to avoid a use-after-free. Reported-by: NAl Viro <viro@ZenIV.linux.org.uk> Reviewed-by: NYehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: NSage Weil <sage@newdream.net>
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由 Sage Weil 提交于
This allows us to force IO through the sync path which you normally only get when multiple clients are reading/writing to the same file or by mounting with -o sync. Among other things, this lets test programs verify correctness with a single mount. Reviewed-by: NYehuda Sadeh <yehuda@hq.newdream.net> Signed-off-by: NSage Weil <sage@newdream.net>
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- 08 6月, 2011 1 次提交
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由 Sage Weil 提交于
We should use ihold whenever we already have a stable inode ref, even when we aren't holding i_lock. This avoids adding new and unnecessary locking dependencies. Signed-off-by: NSage Weil <sage@newdream.net>
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- 21 10月, 2010 2 次提交
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由 Greg Farnum 提交于
Signed-off-by: NSage Weil <sage@newdream.net>
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由 Yehuda Sadeh 提交于
This factors out protocol and low-level storage parts of ceph into a separate libceph module living in net/ceph and include/linux/ceph. This is mostly a matter of moving files around. However, a few key pieces of the interface change as well: - ceph_client becomes ceph_fs_client and ceph_client, where the latter captures the mon and osd clients, and the fs_client gets the mds client and file system specific pieces. - Mount option parsing and debugfs setup is correspondingly broken into two pieces. - The mon client gets a generic handler callback for otherwise unknown messages (mds map, in this case). - The basic supported/required feature bits can be expanded (and are by ceph_fs_client). No functional change, aside from some subtle error handling cases that got cleaned up in the refactoring process. Signed-off-by: NSage Weil <sage@newdream.net>
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- 02 8月, 2010 1 次提交
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由 Sage Weil 提交于
Allow an application to mark a file descriptor for lazy file consistency semantics, allowing buffered reads and writes when multiple clients are accessing the same file. Signed-off-by: NSage Weil <sage@newdream.net>
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- 18 5月, 2010 1 次提交
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由 Cheng Renquan 提交于
ceph_sb_to_client and ceph_client are really identical, we need to dump one; while function ceph_client is confusing with "struct ceph_client", ceph_sb_to_client's definition is more clear; so we'd better switch all call to ceph_sb_to_client. -static inline struct ceph_client *ceph_client(struct super_block *sb) -{ - return sb->s_fs_info; -} Signed-off-by: NCheng Renquan <crquan@gmail.com> Signed-off-by: NSage Weil <sage@newdream.net>
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- 04 12月, 2009 1 次提交
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由 Sage Weil 提交于
There is certainly no reason not to report this. The only real downside to allowing the user to set it is that you don't get default values by zeroing the layout struct (the default is -1). Signed-off-by: NSage Weil <sage@newdream.net>
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- 05 11月, 2009 1 次提交
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由 Sage Weil 提交于
The endian conversions don't quite work with the old union ceph_pg. Just make it a regular struct, and make each field __le. This is simpler and it has the added bonus of actually working. Signed-off-by: NSage Weil <sage@newdream.net>
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- 07 10月, 2009 1 次提交
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由 Sage Weil 提交于
A few Ceph ioctls for getting and setting file layout (striping) parameters, and learning the identity and network address of the OSD a given region of a file is stored on. Signed-off-by: NSage Weil <sage@newdream.net>
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