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* clean statfs-like syscalls upAl Viro2011-03-14
| | | | | | | | | | New helpers: user_statfs() and fd_statfs(), taking userland pathname and descriptor resp. and filling struct kstatfs. Syscalls of statfs family (native, compat and foreign - osf and hpux on alpha and parisc resp.) switched to those. Removes some boilerplate code, simplifies cleanup on errors... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* add f_flags to struct statfs(64)Christoph Hellwig2010-08-09
| | | | | | | | | | Add a flags field to help glibc implementing statvfs(3) efficiently. We copy the flag values from glibc, and add a new ST_VALID flag to denote that f_flags is implemented. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* pass a struct path to vfs_statfsChristoph Hellwig2010-08-09
| | | | | | | | | | | | | | | | We'll need the path to implement the flags field for statvfs support. We do have it available in all callers except: - ecryptfs_statfs. This one doesn't actually need vfs_statfs but just needs to do a caller to the lower filesystem statfs method. - sys_ustat. Add a non-exported statfs_by_dentry helper for it which doesn't won't be able to fill out the flags field later on. In addition rename the helpers for statfs vs fstatfs to do_*statfs instead of the misleading vfs prefix. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Take statfs variants to fs/statfs.cAl Viro2010-05-21
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>