kernel/git/stable/linux-stable.git/fs/ceph/inode.c, branch linux-3.16.y

ceph: add missing check in d_revalidate snapdir handling

2019-12-19T15:58:50+00:00

commit 1f08529c84cfecaf1261ed9b7e17fab18541c58f upstream. We should not play with dcache without parent locked... Signed-off-by: Al Viro Signed-off-by: Jeff Layton Signed-off-by: Ilya Dryomov [bwh: Backported to 3.16: - Test ceph_mds_request::r_locked_dir - Adjust context] Signed-off-by: Ben Hutchings

ceph: use lookup request to revalidate dentry

2018-11-20T18:05:57+00:00

commit 200fd27c8fa2ba8bb4529033967b69a7cbfa2c2e upstream. If dentry has no lease, ceph_d_revalidate() previously return 0. This causes VFS to invalidate the dentry and create a new dentry for later lookup. Invalidating a dentry also detach any underneath mount points. So mount point inside cephfs can disapear mystically (even the mount point is not modified by other hosts). The fix is using lookup request to revalidate dentry without lease. This can partly solve the mount points disapear issue (as long as the mount point is not modified by other hosts) Signed-off-by: Yan, Zheng Cc: Bryan Henderson [bwh: Backported to 3.16: Add the ceph_security_xattr_wanted() function] Signed-off-by: Ben Hutchings

ceph: always update atime/mtime/ctime for new inode

2018-10-21T07:45:26+00:00

commit ffdeec7aa41aa61ca4ee68fddf4669df9ce661d1 upstream. For new inode, atime/mtime/ctime are uninitialized. Don't compare against them. Signed-off-by: "Yan, Zheng" Reviewed-by: Ilya Dryomov Signed-off-by: Ilya Dryomov [bwh: Backported to 3.16: adjust context] Signed-off-by: Ben Hutchings

ceph: fix recursion between ceph_set_acl() and __ceph_setattr()

2017-07-18T17:40:39+00:00

commit 8179a101eb5f4ef0ac9a915fcea9a9d3109efa90 upstream. ceph_set_acl() calls __ceph_setattr() if the setacl operation needs to modify inode's i_mode. __ceph_setattr() updates inode's i_mode, then calls posix_acl_chmod(). The problem is that __ceph_setattr() calls posix_acl_chmod() before sending the setattr request. The get_acl() call in posix_acl_chmod() can trigger a getxattr request. The reply of the getxattr request can restore inode's i_mode to its old value. The set_acl() call in posix_acl_chmod() sees old value of inode's i_mode, so it calls __ceph_setattr() again. Link: http://tracker.ceph.com/issues/19688 Reported-by: Jerry Lee Signed-off-by: "Yan, Zheng" Reviewed-by: Jeff Layton Tested-by: Luis Henriques Signed-off-by: Ilya Dryomov [bwh: Backported to 3.16: All the changes are made in ceph_setattr() as there is no __ceph_setattr() function.] Signed-off-by: Ben Hutchings

fs: Give dentry to inode_change_ok() instead of inode

2017-02-23T03:53:52+00:00

commit 31051c85b5e2aaaf6315f74c72a732673632a905 upstream. inode_change_ok() will be resposible for clearing capabilities and IMA extended attributes and as such will need dentry. Give it as an argument to inode_change_ok() instead of an inode. Also rename inode_change_ok() to setattr_prepare() to better relect that it does also some modifications in addition to checks. Reviewed-by: Christoph Hellwig Signed-off-by: Jan Kara [bwh: Backported to 3.16: - Drop changes to orangefs, overlayfs - Adjust filenames, context - In nfsd, pass dentry to nfsd_sanitize_attrs() - Update ext3 as well] Signed-off-by: Ben Hutchings

Revert "fs: Give dentry to inode_change_ok() instead of inode"

2017-02-23T03:53:52+00:00

This reverts commit be9df699432235753c3824b0f5a27d46de7fdc9e, which was commit 31051c85b5e2aaaf6315f74c72a732673632a905 upstream. The backport breaks fuse and makes a mess of xfs, which can be improved by picking further upstream commits as I should have done in the first place. Signed-off-by: Ben Hutchings

fs: Give dentry to inode_change_ok() instead of inode

2016-11-20T01:17:38+00:00

commit 31051c85b5e2aaaf6315f74c72a732673632a905 upstream. inode_change_ok() will be resposible for clearing capabilities and IMA extended attributes and as such will need dentry. Give it as an argument to inode_change_ok() instead of an inode. Also rename inode_change_ok() to setattr_prepare() to better relect that it does also some modifications in addition to checks. Reviewed-by: Christoph Hellwig Signed-off-by: Jan Kara [bwh: Backported to 3.16: - Drop changes to orangefs, overlayfs - Adjust filenames, context - In fuse, pass dentry to fuse_do_setattr() - In nfsd, pass dentry to nfsd_sanitize_attrs() - In xfs, pass dentry to xfs_setattr_nonsize() and xfs_setattr_size() - Update ext3 as well] Signed-off-by: Ben Hutchings

move d_rcu from overlapping d_child to overlapping d_alias

2015-01-15T10:44:58+00:00

commit 946e51f2bf37f1656916eb75bd0742ba33983c28 upstream. Signed-off-by: Al Viro [bwh: Backported to 3.16: - Apply name changes in all the different places we use d_alias and d_child - Adjust context] Signed-off-by: Ben Hutchings Cc: Moritz Muehlenhoff Signed-off-by: Luis Henriques

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client

2014-06-13T06:06:23+00:00

Pull Ceph updates from Sage Weil: "This has a mix of bug fixes and cleanups. Alex's patch fixes a rare race in RBD. Ilya's patches fix an ENOENT check when a second rbd image is mapped and a couple memory leaks. Zheng fixes several issues with fragmented directories and multiple MDSs. Josh fixes a spin/sleep issue, and Josh and Guangliang's patches fix setting and unsetting RBD images read-only. Naturally there are several other cleanups mixed in for good measure" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (23 commits) rbd: only set disk to read-only once rbd: move calls that may sleep out of spin lock range rbd: add ioctl for rbd ceph: use truncate_pagecache() instead of truncate_inode_pages() ceph: include time stamp in every MDS request rbd: fix ida/idr memory leak rbd: use reference counts for image requests rbd: fix osd_request memory leak in __rbd_dev_header_watch_sync() rbd: make sure we have latest osdmap on 'rbd map' libceph: add ceph_monc_wait_osdmap() libceph: mon_get_version request infrastructure libceph: recognize poolop requests in debugfs ceph: refactor readpage_nounlock() to make the logic clearer mds: check cap ID when handling cap export message ceph: remember subtree root dirfrag's auth MDS ceph: introduce ceph_fill_fragtree() ceph: handle cap import atomically ceph: pre-allocate ceph_cap struct for ceph_add_cap() ceph: update inode fields according to issued caps rbd: replace IS_ERR and PTR_ERR with PTR_ERR_OR_ZERO ...

ceph: use truncate_pagecache() instead of truncate_inode_pages()

2014-06-07T21:09:28+00:00

Signed-off-by: Yan, Zheng