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path: root/fs/hostfs/hostfs_user.c
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* um: hostfs: Reduce number of syscalls in readdirRichard Weinberger2015-04-131-3/+9
| | | | | | | | | Currently hostfs issues every time a seekdir(), in fact it has to do this only upon the first call. Also telldir() can be omitted as we can obtain the directory offset from readdir(). Signed-off-by: Richard Weinberger <richard@nod.at>
* hostfs: No need to box and later unbox the file modeRichard Weinberger2015-03-261-14/+3
| | | | | | | | There is really no point in having a function with 10 arguments. Reported-by: Daniel Walter <d.walter@0x90.at> Signed-off-by: Richard Weinberger <richard@nod.at>
* hostfs: support rename flagsMiklos Szeredi2014-08-071-0/+28
| | | | | | | | | | | | | Support RENAME_NOREPLACE and RENAME_EXCHANGE flags on hostfs if the underlying filesystem supports it. Since renameat2(2) is not yet in any libc, use syscall(2) to invoke the renameat2 syscall. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Cc: Richard Weinberger <richard@nod.at> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* um: get rid of pointless include "..." where include <...> will doAl Viro2012-10-091-1/+0
| | | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
* uml/hostfs: Propagate dirent.d_type to filldir()Geert Uytterhoeven2012-03-251-1/+3
| | | | | | | | | | Currently the (optional) d_type member in struct dirent is always DT_UNKNOWN on hostfs, which may confuse buggy software using readdir(). Make sure to propagate its value from the underlying filesystem if it's available there. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Richard Weinberger <richard@nod.at>
* um: kill useless include of user.hAl Viro2011-11-021-1/+0
| | | | | | | everything in USER_OBJ gets it via -include user.h Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Richard Weinberger <richard@nod.at>
* hostfs: code cleanupsRichard Weinberger2010-10-261-3/+2
| | | | | | | | | Some code cleanups for hostfs. Signed-off-by: Richard Weinberger <richard@nod.at> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* hostfs: fix UML crash: remove f_spare from hostfsRichard Weinberger2010-10-261-7/+2
| | | | | | | | | | | | | | | 365b1818 ("add f_flags to struct statfs(64)") resized f_spare within struct statfs which caused a UML crash. There is no need to copy f_spare. Signed-off-by: Richard Weinberger <richard@nod.at> Reported-by: Toralf Förster <toralf.foerster@gmx.de> Tested-by: Toralf Förster <toralf.foerster@gmx.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Jeff Dike <jdike@addtoit.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* try to get rid of races in hostfs open()Al Viro2010-08-091-0/+5
| | | | | | | | | | | | | | | | | | In case of mode mismatch, do *not* blindly close the descriptor another openers might be using right now. Open the underlying file with currently sufficient mode, then * if current mode has grown so that it's sufficient for us now, just close our new fd * if current mode has grown and our fd is *not* enough to cover it, close and repeat. * otherwise, install our fd if the file hadn't been opened at all or dup2() our fd over the current one (and close our fd). Critical section is protected by mutex; yes, system-wide. All we do under it is a bunch of comparison and maybe an overwriting dup2() on host. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* hostfs: get rid of file_type(), fold init_inode()Al Viro2010-08-091-30/+0
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* switch stat_file() to passing a single struct rather than fsckloads of pointersAl Viro2010-08-091-44/+31
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* Deal with missing exports for hostfsAl Viro2010-08-091-3/+3
| | | | Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
* hostfs: fix a duplicated global function nameWANG Cong2008-11-191-1/+1
| | | | | | | | | | | | | | fs/hostfs/hostfs_user.c defines do_readlink() as non-static, and so does fs/xfs/linux-2.6/xfs_ioctl.c when CONFIG_XFS_DEBUG=y. So rename do_readlink() in hostfs to hostfs_do_readlink(). I think it's better if XFS guys will also rename their do_readlink(), it's not necessary to use such a general name. Signed-off-by: WANG Cong <wangcong@zeuux.org> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* uml: fix hostfs tv_usec calculationsDominique Quatravaux2008-02-051-4/+4
| | | | | | | | | To convert from tv_nsec to tv_usec, one needs to divide by 1000, not multiply. Signed-off-by: Dominique Quatravaux <dominique@quatravaux.org> Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* uml: fix hostfs styleJeff Dike2007-10-161-58/+81
| | | | | | | | Style fixes in hostfs. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* uml: remove unneeded if from hostfsJeff Dike2007-10-161-1/+1
| | | | | | | | | Get rid of an empty if statement which might look like a bug to a casual reader. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* uml: hostfs style fixesJeff Dike2007-05-081-68/+73
| | | | | | | | | hostfs needed some style goodness. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* uml: make hostfs_setattr() support operations on unlinked open filesAlberto Bertogli2007-05-081-40/+68
| | | | | | | | | | | | | | | | | | This patch allows hostfs_setattr() to work on unlinked open files by calling set_attr() (the userspace part) with the inode's fd. Without this, applications that depend on doing attribute changes to unlinked open files will fail. It works by using the fd versions instead of the path ones (for example fchmod() instead of chmod(), fchown() instead of chown()) when an fd is available. Signed-off-by: Alberto Bertogli <albertito@gmail.com> Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] uml: fix mknodJohannes Stezenbach2007-01-301-2/+2
| | | | | | | | | | | | | Fix UML hostfs mknod(): userspace has differernt dev_t size and encoding than kernel, so extract major/minor and reencode using glibc makedev() macro. Signed-off-by: Johannes Stezenbach <js@linuxtv.org> Acked-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Jeff Dike <jdike@addtoit.com> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* [PATCH] uml: fix hostfs stack corruptionJeff Dike2006-03-271-1/+0
| | | | | | | | | | | | Noted by Oleg Drokin: We initialized an extra slot of struct kstatfs.spare, sometimes causing stack corruption. Signed-off-by: Jeff Dike <jdike@addtoit.com> Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Oleg Drokin <green@clusterfs.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] uml: implement hostfs syncingPaolo 'Blaisorblade' Giarrusso2005-07-281-1/+15
| | | | | | | | | Actually implement the hostfs "sync" method. Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it> Cc: Jeff Dike <jdike@addtoit.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+362
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
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