- 25 6月, 2014 8 次提交
-
-
由 Anna Schumaker 提交于
inode is unused when CONFIG_SUNRPC_DEBUG=n. Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
EXPORT_GPLs of nfs_pageio_add_request and nfs_pageio_complete aren't needed anymore. Suggested-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
Clean up pnfs_read_done_resend_to_mds and pnfs_write_done_resend_to_mds: - instead of passing all arguments from a nfs_pgio_header, just pass the header - share the common code Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
The refcounting on nfs_pgio_header was related to there being (possibly) more than one nfs_pgio_data. Now that nfs_pgio_data has been merged into nfs_pgio_header, there is no reason to do this ref counting. Just call the completion callback on nfs_pgio_release/nfs_pgio_error. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
Remove duplicate writeverf structure from merge of nfs_pgio_header and nfs_pgio_data and remove writeverf related flags and logic to handle more than one RPC per nfs_pgio_header. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
struct nfs_pgio_data only exists as a member of nfs_pgio_header, but is passed around everywhere, because there used to be multiple _data structs per _header. Many of these functions then use the _data to find a pointer to the _header. This patch cleans this up by merging the nfs_pgio_data structure into nfs_pgio_header and passing nfs_pgio_header around instead. Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
Rename "verf" to "writeverf" and "pages" to "page_array" to prepare for merge of nfs_pgio_data and nfs_pgio_header. Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
nfs_rw_header was used to allocate an nfs_pgio_header along with an nfs_pgio_data, because a _header would need at least one _data. Now there is only ever one nfs_pgio_data for each nfs_pgio_header -- move it to nfs_pgio_header and get rid of nfs_rw_header. Reviewed-by: NChristoph Hellwig <hch@lst.de> Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
- 30 5月, 2014 2 次提交
-
-
由 Trond Myklebust 提交于
We cannot allow nfs_page_group_lock to use TASK_KILLABLE here, since the loop would cause a busy wait if somebody kills the task. Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Trond Myklebust 提交于
Handle the case where nfs_create_request() returns an error. Reported-by: NDan Carpenter <dan.carpenter@oracle.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
- 29 5月, 2014 21 次提交
-
-
由 Weston Andros Adamson 提交于
Since the ability to split pages into subpage requests has been added, nfs_pgio_header->rpc_list only ever has one pgio data. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
Use the newly added support for multiple requests per page for rsize/wsize < PAGE_SIZE, instead of having multiple read / write data structures per pageio header. This allows us to get rid of nfs_pgio_multi. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
Remove check that the request covers a whole page. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
Operations that modify state for a whole page must be syncronized across all requests within a page group. In the write path, this is calling end_page_writeback and removing the head request from an inode. Both of these operations should not be called until all requests in a page group have reached the point where they would call them. This patch should have no effect yet since all page groups currently have one request, but will come into play when pg_test functions are modified to split pages into sub-page regions. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
Operations that modify state for a whole page must be syncronized across all requests within a page group. In the read path, this is calling unlock_page and SetPageUptodate. Both of these functions should not be called until all requests in a page group have reached the point where they would call them. This patch should have no effect yet since all page groups currently have one request, but will come into play when pg_test functions are modified to split pages into sub-page regions. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
Add "page groups" - a circular list of nfs requests (struct nfs_page) that all reference the same page. This gives nfs read and write paths the ability to account for sub-page regions independently. This somewhat follows the design of struct buffer_head's sub-page accounting. Only "head" requests are ever added/removed from the inode list in the buffered write path. "head" and "sub" requests are treated the same through the read path and the rest of the write/commit path. Requests are given an extra reference across the life of the list. Page groups are never rejoined after being split. If the read/write request fails and the client falls back to another path (ie revert to MDS in PNFS case), the already split requests are pushed through the recoalescing code again, which may split them further and then coalesce them into properly sized requests on the wire. Fragmentation shouldn't be a problem with the current design, because we flush all requests in page group when a non-contiguous request is added, so the only time resplitting should occur is on a resend of a read or write. This patch lays the groundwork for sub-page splitting, but does not actually do any splitting. For now all page groups have one request as pg_test functions don't yet split pages. There are several related patches that are needed support multiple requests per page group. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
Call nfs_can_coalesce_requests for every request, even the first one. This is needed for future patches to give pg_test a way to inform add_request to reduce the size of the request. Now @prev can be null in nfs_can_coalesce_requests and pg_test functions. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
This is a step toward allowing pg_test to inform the the coalescing code to reduce the size of requests so they may fit in whatever scheme the pg_test callback wants to define. For now, just return the size of the request if there is space, or 0 if there is not. This shouldn't change any behavior as it acts the same as when the pg_test functions returned bool. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Weston Andros Adamson 提交于
@inode is passed but not used. Signed-off-by: NWeston Andros Adamson <dros@primarydata.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
At this point the read and write structures look identical, so combine them into something shared by both. Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
What we have here is two functions that look identical. Let's share some more code! Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
Once again, these two functions look identical in the read and write case. Time to combine them together! Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
Most of this code is the same for both the read and write paths, so combine everything and use the rw_ops when necessary. Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
These functions are almost identical on both the read and write side. FLUSH_COND_STABLE will never be set for the read path, so leaving it in the generic code won't hurt anything. Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
At this point, the read and write versions of this function look identical so both should use the same function. Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
Write adds a little bit of code dealing with flush flags, but since "how" will always be 0 when reading we can share the code. Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
The read and write paths set up this struct in exactly the same way, so create a single shared struct. Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
Combining these functions will let me make a single nfs_rw_common_ops struct (see the next patch). Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
The read and write paths do exactly the same thing for the rpc_prepare rpc_op. This patch combines them together into a single function. Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
I create a new struct nfs_rw_ops to decide the differences between reads and writes. This struct will be set when initializing a new nfs_pgio_descriptor, and then passed on to the nfs_rw_header when a new header is allocated. Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
由 Anna Schumaker 提交于
These functions are identical for the read and write paths so they can be combined. Signed-off-by: NAnna Schumaker <Anna.Schumaker@Netapp.com> Signed-off-by: NTrond Myklebust <trond.myklebust@primarydata.com>
-
- 18 4月, 2014 1 次提交
-
-
由 Peter Zijlstra 提交于
Mostly scripted conversion of the smp_mb__* barriers. Signed-off-by: NPeter Zijlstra <peterz@infradead.org> Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com> Link: http://lkml.kernel.org/n/tip-55dhyhocezdw1dg7u19hmh1u@git.kernel.org Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: linux-arch@vger.kernel.org Signed-off-by: NIngo Molnar <mingo@kernel.org>
-
- 06 9月, 2013 1 次提交
-
-
由 Trond Myklebust 提交于
When coalescing requests into a single READ or WRITE RPC call, and there is no file locking involved, we don't have to refuse coalescing for requests where the lock owner information doesn't match. Reported-by: NJeff Layton <jlayton@redhat.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
-
- 09 4月, 2013 1 次提交
-
-
由 Trond Myklebust 提交于
This will later allow NFS locking code to wait for readahead to complete before releasing byte range locks. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
-
- 26 3月, 2013 1 次提交
-
-
由 Trond Myklebust 提交于
If the state recovery failed, we want to ensure that the application doesn't try to use the same file descriptor for more reads or writes. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
-
- 29 9月, 2012 2 次提交
-
-
由 Trond Myklebust 提交于
We want to be able to pass on the information that the page was not dirtied under a lock. Instead of adding a flag parameter, do this by passing a pointer to a 'struct nfs_lock_owner' that may be NULL. Also reuse this structure in struct nfs_lock_context to carry the fl_owner_t and pid_t. Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
-
由 Trond Myklebust 提交于
We want to be able to distinguish between allocation failures, and the case where the lock context is not needed (because there are no locks). Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
-
- 03 8月, 2012 1 次提交
-
-
由 Peng Tao 提交于
To allow layout driver to pass private information around pg_init/pg_doio. Signed-off-by: NPeng Tao <tao.peng@emc.com> Signed-off-by: NBoaz Harrosh <bharrosh@panasas.com> Signed-off-by: NTrond Myklebust <Trond.Myklebust@netapp.com>
-
- 01 8月, 2012 2 次提交
-
-
由 Mel Gorman 提交于
GFP_NOFS is _more_ permissive than GFP_NOIO in that it will initiate IO, just not of any filesystem data. The problem is that previously NOFS was correct because that avoids recursion into the NFS code. With swap-over-NFS, it is no longer correct as swap IO can lead to this recursion. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: NMel Gorman <mgorman@suse.de> Acked-by: NRik van Riel <riel@redhat.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Eric B Munson <emunson@mgebm.net> Cc: Eric Paris <eparis@redhat.com> Cc: James Morris <jmorris@namei.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: Neil Brown <neilb@suse.de> Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Xiaotian Feng <dfeng@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-
由 Mel Gorman 提交于
Replace all relevant occurences of page->index and page->mapping in the NFS client with the new page_file_index() and page_file_mapping() functions. Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: NMel Gorman <mgorman@suse.de> Acked-by: NRik van Riel <riel@redhat.com> Cc: Christoph Hellwig <hch@infradead.org> Cc: David S. Miller <davem@davemloft.net> Cc: Eric B Munson <emunson@mgebm.net> Cc: Eric Paris <eparis@redhat.com> Cc: James Morris <jmorris@namei.org> Cc: Mel Gorman <mgorman@suse.de> Cc: Mike Christie <michaelc@cs.wisc.edu> Cc: Neil Brown <neilb@suse.de> Cc: Sebastian Andrzej Siewior <sebastian@breakpoint.cc> Cc: Trond Myklebust <Trond.Myklebust@netapp.com> Cc: Xiaotian Feng <dfeng@redhat.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
-