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2014-11-19Merge branch 'for-lustre' into for-nextAl Viro
2014-11-19dcache: fix kmemcheck warning in switch_namesMikulas Patocka
This patch fixes kmemcheck warning in switch_names. The function switch_names swaps inline names of two dentries. It swaps full arrays d_iname, no matter how many bytes are really used by the strings. Reading data beyond string ends results in kmemcheck warning. We fix the bug by marking both arrays as fully initialized. Signed-off-by: Mikulas Patocka <mpatocka@redhat.com> Cc: stable@vger.kernel.org # v3.15 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19new helper: audit_file()Al Viro
... for situations when we don't have any candidate in pathnames - basically, in descriptor-based syscalls. [Folded the build fix for !CONFIG_AUDITSYSCALL configs from Chen Gang] Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19nfsd_vfs_write(): use file_inode()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19ncpfs: use file_inode()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19kill f_dentry usesAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19lockd: get rid of ->f_path.dentry->d_sbAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19procfs: get rid of ->f_dentryAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19nfsd: get rid of ->f_dentryAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19rpc_pipefs.c: get rid of f_dentryAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19afs_fsync: don't bother with ->f_path.dentryAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19cifs: get rid of ->f_path.dentry->d_sb uses, add a new helperAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19btrfs: get rid of f_dentry useAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19nfsd/nfsctl.c: new helperAl Viro
... to get from opened file on nfsctl to relevant struct net * Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19assorted conversions to %p[dD]Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19switch d_materialise_unique() users to d_splice_alias()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19merge d_materialise_unique() into d_splice_alias()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19Merge branch 'for-gfs2' into for-nextAl Viro
2014-11-19d_add_ci() should just accept a hashed exact match if it finds oneAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19gfs2_atomic_open(): simplify the use of finish_no_open()Al Viro
In ->atomic_open(inode, dentry, file, opened) calling finish_no_open(file, NULL) is equivalent to dget(dentry); return finish_no_open(file, dentry); No need to open-code that... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19gfs2_create_inode(): don't bother with d_splice_alias()Al Viro
dentry is always hashed and negative, inode - non-error, non-NULL and non-directory. In such conditions d_splice_alias() is equivalent to "d_instantiate(dentry, inode) and return NULL", which simplifies the downstream code and is consistent with the "have to create a new object" case. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-19gfs2: bugger off early if O_CREAT open finds a directoryAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03deal with deadlock in d_walk()Al Viro
... by not hitting rename_retry for reasons other than rename having happened. In other words, do _not_ restart when finding that between unlocking the child and locking the parent the former got into __dentry_kill(). Skip the killed siblings instead... Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03lustre: use is_root_inode()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03lustre: get rid of duplicate mountpoint checksAl Viro
VFS has already done them Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03kill ll_link_generic()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03ll_get_child_fid(): callers already have the childAl Viro
no need to bother with d_lookup() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03kill ll_rename_generic()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03kill ll_unlink_generic()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03kill ll_rmdir_generic()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03ll_new_inode(): don't bother with name - it's always &dentry->d_nameAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03kill ll_symlink_generic()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03kill ll_mkdir_generic()Al Viro
fold into ll_mkdir() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03kill ll_mknod_generic()Al Viro
just fold into ll_mknod() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03lustre: switch ll_release_openhandle() to struct inode *Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03lustre: use file_inode()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03lustre: use %p[dD]Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03lustre: opened file can't have negative dentryAl Viro
... and ll_md_close() gets inode already equal to file_inode(file), along with ll_file_release() Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03ll_setxattr(): get rid of struct file on stackAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03lustre: switch ll_intent_file_open() to struct dentry *Al Viro
... because fake struct file is wrong. ll_prep_inode() in there is an atrocity - despite passing a pointer to inode by address, it actually only uses the value when that value is non-NULL, as it will be here. Oh, and ->d_parent of anything is never NULL. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-11-03move d_rcu from overlapping d_child to overlapping d_aliasAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-31new helper: is_root_inode()Al Viro
replace open-coded instances Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-31vfs: make first argument of dir_context.actor typedMiklos Szeredi
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-31ovl: initialize ->is_cursorMiklos Szeredi
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-31Return short read or 0 at end of a raw device, not EIODavid Jeffery
Author: David Jeffery <djeffery@redhat.com> Changes to the basic direct I/O code have broken the raw driver when reading to the end of a raw device. Instead of returning a short read for a read that extends partially beyond the device's end or 0 when at the end of the device, these reads now return EIO. The raw driver needs the same end of device handling as was added for normal block devices. Using blkdev_read_iter, which has the needed size checks, prevents the EIO conditions at the end of the device. Signed-off-by: David Jeffery <djeffery@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-31isofs: don't bother with ->d_op for normal caseAl Viro
we only need it for joliet and case-insensitive mounts Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-28isofs_cmp(): we'll never see a dentry for . or ..Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-28overlayfs: fix lockdep misannotationMiklos Szeredi
In an overlay directory that shadows an empty lower directory, say /mnt/a/empty102, do: touch /mnt/a/empty102/x unlink /mnt/a/empty102/x rmdir /mnt/a/empty102 It's actually harmless, but needs another level of nesting between I_MUTEX_CHILD and I_MUTEX_NORMAL. Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Tested-by: David Howells <dhowells@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-28ovl: fix check for cursorMiklos Szeredi
ovl_cache_entry.name is now an array not a pointer, so it makes no sense test for it being NULL. Detected by coverity. From: Miklos Szeredi <mszeredi@suse.cz> Fixes: 68bf8611076a ("overlayfs: make ovl_cache_entry->name an array instead of +pointer") Signed-off-by: Miklos Szeredi <mszeredi@suse.cz> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2014-10-28overlayfs: barriers for opening upper-layer directoryAl Viro
make sure that a) all stores done by opening struct file don't leak past storing the reference in od->upperfile b) the lockless side has read dependency barrier Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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