- 22 4月, 2015 3 次提交
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由 Yan, Zheng 提交于
For CEPH_OSD_CMPXATTR_MODE_U64, OSD expects the u64 to be encoded as string in object's xattr. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
sb->s_root can be null when umounting Signed-off-by: NYan, Zheng <zyan@redhat.com>
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- 20 4月, 2015 14 次提交
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由 Yan, Zheng 提交于
If a directory is complete, we want to keep the exclusive cap. So that MDS does not end up revoking the shared cap on every create/unlink operation. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Ilya Dryomov 提交于
Don't pollute /proc/mounts with default options (presently these are dcache, nofsc and acl). Leave the acl/noacl however - it's a bit of a special case due to CONFIG_CEPH_FS_POSIX_ACL. Signed-off-by: NIlya Dryomov <idryomov@gmail.com>
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由 Ilya Dryomov 提交于
Split ceph_show_options() into two pieces and move the piece responsible for printing client (libceph) options into net/ceph. This way people adding a libceph option wouldn't have to remember to update code in fs/ceph. Signed-off-by: NIlya Dryomov <idryomov@gmail.com>
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由 Yan, Zheng 提交于
Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
remove_session_caps_cb() does not truncate dirty data in page cache, but zeros i_wrbuffer_ref/i_wrbuffer_ref_head. This will result negtive i_wrbuffer_ref/i_wrbuffer_ref_head Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
No i_auth_cap means reconnecting to MDS was denied. So don't add new dirty caps. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
when reconnecting to MDS is denied, we remove session caps forcibly. But it's possible there are ongoing write, the write code needs to reference i_snap_realm. So if there are ongoing write, we keep i_snap_realm. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Sanidhya Kashyap 提交于
Currently, there is no check for the kstrdup() for r_path2, r_path1 and snapdir_name as various locations as there is a possibility of failure during memory pressure. Therefore, returning ENOMEM where the checks have been missed. Signed-off-by: NSanidhya Kashyap <sanidhya.gatech@gmail.com> Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Taesoo Kim 提交于
When ceph_update_writeable_page fails (including -EAGAIN), it unlocks (w/ unlock_page) the page but does not 'release' (w/ page_cache_release) properly. Upon error, properly set *pagep to NULL, indicating an error. Signed-off-by: NTaesoo Kim <tsgatesv@gmail.com> Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Nicholas Mc Guire 提交于
return type of wait_for_completion_timeout is unsigned long not int. An appropriately named unsigned long is added and the assignment fixed up. Signed-off-by: NNicholas Mc Guire <hofrat@osadl.org> Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Nicholas Mc Guire 提交于
This is only an API consolidation and should make things more readable it replaces var * HZ / 1000 by msecs_to_jiffies(var). Signed-off-by: NNicholas Mc Guire <hofrat@osadl.org> Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Fabian Frederick 提交于
ceph_aops was already defined extern in addr.c section Signed-off-by: NFabian Frederick <fabf@skynet.be> Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
These cap releases are stale because MDS will re-establish client caps according to the cap reconnect messages. Note: MDS can detect stale cap messages, so these stale cap releases are harmless even we don't drop them. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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- 12 4月, 2015 5 次提交
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由 Al Viro 提交于
... avoiding write_iter/fcntl races. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
... returning -E... upon error and amount of data left in iter after (possible) truncation upon success. Note, that normal case gives a non-zero (positive) return value, so any tests for != 0 _must_ be updated. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk> Conflicts: fs/ext4/file.c
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由 Al Viro 提交于
all remaining callers are passing 0; some just obscure that fact. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Omar Sandoval 提交于
Now that no one is using rw, remove it completely. Signed-off-by: NOmar Sandoval <osandov@osandov.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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由 Al Viro 提交于
All places outside of core VFS that checked ->read and ->write for being NULL or called the methods directly are gone now, so NULL {read,write} with non-NULL {read,write}_iter will do the right thing in all cases. Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 26 3月, 2015 1 次提交
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由 Christoph Hellwig 提交于
struct kiocb now is a generic I/O container, so move it to fs.h. Also do a #include diet for aio.h while we're at it. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 13 3月, 2015 1 次提交
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由 Christoph Hellwig 提交于
There is no need to pass the total request length in the kiocb, as we already get passed in through the iov_iter argument. Signed-off-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 23 2月, 2015 1 次提交
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由 David Howells 提交于
Convert the following where appropriate: (1) S_ISLNK(dentry->d_inode) to d_is_symlink(dentry). (2) S_ISREG(dentry->d_inode) to d_is_reg(dentry). (3) S_ISDIR(dentry->d_inode) to d_is_dir(dentry). This is actually more complicated than it appears as some calls should be converted to d_can_lookup() instead. The difference is whether the directory in question is a real dir with a ->lookup op or whether it's a fake dir with a ->d_automount op. In some circumstances, we can subsume checks for dentry->d_inode not being NULL into this, provided we the code isn't in a filesystem that expects d_inode to be NULL if the dirent really *is* negative (ie. if we're going to use d_inode() rather than d_backing_inode() to get the inode pointer). Note that the dentry type field may be set to something other than DCACHE_MISS_TYPE when d_inode is NULL in the case of unionmount, where the VFS manages the fall-through from a negative dentry to a lower layer. In such a case, the dentry type of the negative union dentry is set to the same as the type of the lower dentry. However, if you know d_inode is not NULL at the call site, then you can use the d_is_xxx() functions even in a filesystem. There is one further complication: a 0,0 chardev dentry may be labelled DCACHE_WHITEOUT_TYPE rather than DCACHE_SPECIAL_TYPE. Strictly, this was intended for special directory entry types that don't have attached inodes. The following perl+coccinelle script was used: use strict; my @callers; open($fd, 'git grep -l \'S_IS[A-Z].*->d_inode\' |') || die "Can't grep for S_ISDIR and co. callers"; @callers = <$fd>; close($fd); unless (@callers) { print "No matches\n"; exit(0); } my @cocci = ( '@@', 'expression E;', '@@', '', '- S_ISLNK(E->d_inode->i_mode)', '+ d_is_symlink(E)', '', '@@', 'expression E;', '@@', '', '- S_ISDIR(E->d_inode->i_mode)', '+ d_is_dir(E)', '', '@@', 'expression E;', '@@', '', '- S_ISREG(E->d_inode->i_mode)', '+ d_is_reg(E)' ); my $coccifile = "tmp.sp.cocci"; open($fd, ">$coccifile") || die $coccifile; print($fd "$_\n") || die $coccifile foreach (@cocci); close($fd); foreach my $file (@callers) { chomp $file; print "Processing ", $file, "\n"; system("spatch", "--sp-file", $coccifile, $file, "--in-place", "--no-show-diff") == 0 || die "spatch failed"; } [AV: overlayfs parts skipped] Signed-off-by: NDavid Howells <dhowells@redhat.com> Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
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- 19 2月, 2015 15 次提交
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由 Yan, Zheng 提交于
When we receives traceless reply for request that created new inode, we re-send a lookup request to MDS get information of the newly created inode. (VFS expects FS' callback return an inode in create case) This breaks one request into two requests. Other client may modify or move to the new inode in the middle. When the race happens, ceph_handle_notrace_create() unconditionally links the dentry for 'create' operation to the inode returned by lookup. This may confuse VFS when the inode is a directory (VFS does not allow multiple linkages for directory inode). This patch makes ceph_handle_notrace_create() when it detect a race. This event should be rare and it happens only when we talk to old MDS. Recent MDS does not send traceless reply for request that creates new inode. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
So that MDS can check if any request is already completed and process completed requests in clientreplay stage. When completed requests are processed in clientreplay stage, MDS can avoid sending traceless replies. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Ilya Dryomov 提交于
Signed-off-by: NIlya Dryomov <idryomov@redhat.com>
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由 Yan, Zheng 提交于
ceph_handle_snapdir() checks ceph_mdsc_do_request()'s return value and creates snapdir inode if it's -ENOENT Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
ceph_add_cap() calls __check_cap_issue(), which clears directory inode' complete flag. so we should set the complete flag for empty directory should be set after calling ceph_add_cap(). Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
remove all unsupported operations from {inode,file}_operations. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
struct timespec uses 'long' to present second and nanosecond. 'long' is 64 bits on 64bits machine. ceph MDS expects time stamp to be encoded as struct ceph_timespec, which uses 'u32' to present second and nanosecond. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
when inode has inline data but its size > PAGE_SIZE (it was truncated to larger size), previous direct read code return -EIO. This patch adds code to return zeros for data whose offset > PAGE_SIZE. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
use an atomic variable to track number of sessions, this can avoid block operation inside wait loops. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
we should not do block operation in wait_event_interruptible()'s condition check function, but reading inline data can block. so move the read inline data code to ceph_get_caps() Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
check_cap_flush() calls mutex_lock(), which may block. So we can't use it as condition check function for wait_event(); Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
When snaprealm is created, its initial reference count is zero. But in some rare cases, the newly created snaprealm is not referenced by anyone. This causes snaprealm with zero reference count not freed. The fix is set reference count of newly snaprealm to 1. The reference is return the function who requests to create the snaprealm. When the function finishes its job, it releases the reference. Signed-off-by: NYan, Zheng <zyan@redhat.com>
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由 Yan, Zheng 提交于
A bug is found in striped_read() of fs/ceph/file.c. striped_read() calls ceph_zero_pape_vector_range(). The first argument, page_align + read + ret, passed to ceph_zero_pape_vector_range() is wrong. When a file has holes, this wrong parameter may cause memory corruption either in kernal space or user space. Kernel space memory may be corrupted in the case of non direct IO; user space memory may be corrupted in the case of direct IO. In the latter case, the application doing direct IO may crash due to memory corruption, as we have experienced. The correct value should be initial_align + read + ret, where intial_align = o_direct ? buf_align : io_align. Compared with page_align, the current page offest, initial_align is the initial page offest, which should be used to calculate the page and offset in ceph_zero_pape_vector_range(). Reported-by: Ncaifeng zhu <zhucaifeng@unissoft-nj.com> Signed-off-by: NYan, Zheng <zyan@redhat.com>
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