- 09 8月, 2010 1 次提交
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由 David Woodhouse 提交于
Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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- 19 5月, 2010 1 次提交
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由 Joakim Tjernlund 提交于
We're about to start calling this from the jffs2_garbage_collect_pass(), and we'll want to know whether it actually did anything or not. Signed-off-by: NJoakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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- 25 2月, 2010 1 次提交
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由 Andrew Morton 提交于
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=14995Reported-by: NR. Diez <rdiezmail-kernelbugzilla@yahoo.de> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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- 10 1月, 2009 1 次提交
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由 Artem Bityutskiy 提交于
'rb_prev()', 'rb_next()' and 'rb_replace_node()' are declared in include/linux/rbtree.h, no need for JFFS2 to re-declare them. I believe these are left-overs from the old days when the common RB tree code did not have those call and JFFS2 had private implementation. Signed-off-by: NArtem Bityutskiy <Artem.Bityutskiy@nokia.com> Signed-off-by: NDavid Woodhouse <David.Woodhouse@intel.com>
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- 02 5月, 2008 1 次提交
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由 David Woodhouse 提交于
To support NFS export, we need to know the parent inode of directories. Rather than growing the jffs2_inode_cache structure, share space with the nlink field -- which was always set to 1 for directories anyway. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 23 4月, 2008 1 次提交
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由 David Woodhouse 提交于
Haven't had any complaints about it recently, despite having the test code enabled to verify that the calculated length is correct. Kill it off, just by #undef TEST_TOTLEN for now; removing it for real can come a little later. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 03 8月, 2007 1 次提交
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由 David Woodhouse 提交于
Otherwise they'll never actually get garbage-collected. Noted by Jonathan Larmour. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 10 7月, 2007 1 次提交
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由 David Woodhouse 提交于
Convert many spaces to tabs; one or two other minor cosmetic fixes. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 29 6月, 2007 1 次提交
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由 David Woodhouse 提交于
Otherwise they'll never actually get garbage-collected. Noted by Jonathan Larmour. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 26 4月, 2007 1 次提交
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由 David Woodhouse 提交于
This should never happen unless there's corruption on the medium and the actual data nodes go missing. But the failure mode (an oops when we assume the fragtree isn't empty and go looking for its last node) isn't useful. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 25 4月, 2007 2 次提交
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由 David Woodhouse 提交于
In particular, remove the bit in the LICENCE file about contacting Red Hat for alternative arrangements. Their errant IS department broke that arrangement a long time ago -- the policy of collecting copyright assignments from contributors came to an end when the plug was pulled on the servers hosting the project, without notice or reason. We do still dual-license it for use with eCos, with the GPL+exception licence approved by the FSF as being GPL-compatible. It's just that nobody has the right to license it differently. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
We originally used to read every node and allocate a jffs2_tmp_dnode_info structure for each, before processing them in (reverse) version order and discarding the ones which are obsoleted by later nodes. With huge logfiles, this behaviour caused memory problems. For example, a file involved in OLPC trac #1292 has 1822391 nodes, and would cause the XO machine to run out of memory during the first stage of read_inode(). Instead of just inserting nodes into a tree in version order as we find them, we now put them into a tree in order of their offset within the file, which allows us to immediately discard nodes which are completely obsoleted. We don't use a full tree with 'fragments' pointing to the real data structure, as we do in the normal fragtree. We sort only on the start address, and add an 'overlapped' flag to the tmp_dnode_info to indicate that the node in question is (partially) overlapped by another. When the scan is complete, we start at the end of the file, adding each node to a real fragtree as before. Where the node is non-overlapped, we just add it (it doesn't matter that it's not the latest version; there is no overlap). When the node at the end of the tree _is_ overlapped, we sort it and all its overlapping nodes into version order and then add them to the fragtree in that order. This 'early discard' reduces the peak allocation of tmp_dnode_info structures from 1.8M to a mere 62872 (3.5%) in the degenerate case referenced above. This version of the patch also correctly rememembers the highest node version# seen for an inode when it's scanned. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 23 4月, 2007 1 次提交
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由 David Woodhouse 提交于
When compiling a LE-capable JFFS2 on PowerPC, wbuf.c fails to compile: fs/jffs2/wbuf.c:973: error: braced-group within expression allowed only inside a function fs/jffs2/wbuf.c:973: error: initializer element is not constant fs/jffs2/wbuf.c:973: error: (near initialization for ‘oob_cleanmarker.magic’) fs/jffs2/wbuf.c:974: error: braced-group within expression allowed only inside a function fs/jffs2/wbuf.c:974: error: initializer element is not constant fs/jffs2/wbuf.c:974: error: (near initialization for ‘oob_cleanmarker.nodetype’) fs/jffs2/wbuf.c:975: error: braced-group within expression allowed only inside a function fs/jffs2/wbuf.c:976: error: initializer element is not constant fs/jffs2/wbuf.c:976: error: (near initialization for ‘oob_cleanmarker.totlen’) Provide constant_cpu_to_je{16,32} functions, and use them for initialising the offending structure. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 21 10月, 2006 1 次提交
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由 Akinobu Mita 提交于
Use rb_first() and rb_last() to implement frag_first() and frag_last(). Signed-off-by: NAkinbou Mita <akinobu.mita@gmail.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 07 7月, 2006 1 次提交
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由 Adrian Bunk 提交于
This patch makes the needlessly global jffs2_obsolete_node_frag() static. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 01 7月, 2006 1 次提交
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由 Jörn Engel 提交于
Signed-off-by: NJörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: NAdrian Bunk <bunk@stusta.de>
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- 30 6月, 2006 1 次提交
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由 Adrian Bunk 提交于
This patch makes two needlessly global functions static. Signed-off-by: NAdrian Bunk <bunk@stusta.de> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 27 5月, 2006 1 次提交
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由 David Woodhouse 提交于
This allows us to drop another pointer from the struct jffs2_raw_node_ref, shrinking it to 8 bytes on 32-bit machines (if the TEST_TOTLEN) paranoia check is turned off, which will be committed soon). Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 25 5月, 2006 2 次提交
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由 David Woodhouse 提交于
Preallocation of refs is shortly going to be a per-eraseblock thing, rather than per-filesystem. Add the required argument to the function. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
... to jffs2_free_jeb_node_refs() since that's what it does. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 24 5月, 2006 2 次提交
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由 David Woodhouse 提交于
Another part of the preparation for switching to an array... Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
As the first step towards eliminating the ref->next_phys member and saving memory by using an _array_ of struct jffs2_raw_node_ref per eraseblock, stop the write functions from allocating their own refs; have them just _reserve_ the appropriate number instead. Then jffs2_link_node_ref() can just fill them in. Use a linked list of pre-allocated refs in the superblock, for now. Once we switch to an array, it'll just be a case of extending that array. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 23 5月, 2006 1 次提交
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由 David Woodhouse 提交于
We don't need the upper layers to deal with the physical offset. It's _always_ c->nextblock->offset + c->sector_size - c->nextblock->free_size so we might as well just let the actual write functions deal with that. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 22 5月, 2006 2 次提交
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由 David Woodhouse 提交于
We'll be using a proper list of nodes in the jffs2_xattr_datum and jffs2_xattr_ref structures, because the existing code to overwrite them is just broken. Put it in the common part at the front of the structure which is shared with the jffs2_inode_cache, so that the jffs2_link_node_ref() function can do the right thing. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
Let's avoid the potential for forgetting to set ref->next_in_ino, by doing it within jffs2_link_node_ref() instead. This highlights the ugliness of what we're currently doing with xattr_datum and xattr_ref structures -- we should find a nicer way of dealing with that. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 21 5月, 2006 6 次提交
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由 David Woodhouse 提交于
Well, almost. We'll actually keep a 'TEST_TOTLEN' macro set for now, and keep doing some paranoia checks to make sure it's all working correctly. But if TEST_TOTLEN is unset, the size of struct jffs2_raw_node_ref drops from 16 bytes to 12 on 32-bit machines. That's a saving of about half a megabyte of memory on the OLPC prototype board, with 125K or so nodes in its 512MiB of flash. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
If __totlen is going away, we need to pass the length in separately. Also stop callers from needlessly setting ref->next_phys to NULL, since that's done for them... and since that'll also be going away soon. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
To eliminate the __totlen field from struct jffs2_raw_node_ref, we need to allocate nodes for dirty space instead of just tweaking the accounting data. Introduce jffs2_scan_dirty_space() in preparation for that. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
For RWCOMPAT and ROCOMPAT nodes, we should still allow the mount to succeed. Just abandon the summary and fall through to the full scan. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
We should preserve these when we come to garbage collect them, not let them get erased. Use jffs2_garbage_collect_pristine() for this, and make sure the summary code copes -- just refrain from writing a summary for any block which contains a node we don't understand. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
The same sequence of code was repeated in many places, to add a new struct jffs2_raw_node_ref to an eraseblock and adjust the space accounting accordingly. Move it out-of-line. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 19 5月, 2006 1 次提交
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由 David Woodhouse 提交于
Device node major/minor numbers are just stored in the payload of a single data node. Just extend that to 4 bytes and use new_encode_dev() for it. We only use the 4-byte format if we _need_ to, if !old_valid_dev(foo). This preserves backwards compatibility with older code as much as possible. If we do make devices with major or minor numbers above 255, and then mount the file system with the old code, it'll just read the first two bytes and get the numbers wrong. If it comes to garbage-collect it, it'll then write back those wrong numbers. But that's about the best we can expect. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 13 5月, 2006 2 次提交
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由 KaiGai Kohei 提交于
This patch can reduce 4-byte of memory usage per inode_cache. [4/10] jffs2-xattr-v5.1-04-remove_ilist_from_ic.patch Signed-off-by: NKaiGai Kohei <kaigai@ak.jp.nec.com>
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由 KaiGai Kohei 提交于
This attached patches provide xattr support including POSIX-ACL and SELinux support on JFFS2 (version.5). There are some significant differences from previous version posted at last December. The biggest change is addition of EBS(Erase Block Summary) support. Currently, both kernel and usermode utility (sumtool) can recognize xattr nodes which have JFFS2_NODETYPE_XATTR/_XREF nodetype. In addition, some bugs are fixed. - A potential race condition was fixed. - Unexpected fail when updating a xattr by same name/value pair was fixed. - A bug when removing xattr name/value pair was fixed. The fundamental structures (such as using two new nodetypes and exclusion mechanism by rwsem) are unchanged. But most of implementation were reviewed and updated if necessary. Espacially, we had to change several internal implementations related to load_xattr_datum() to avoid a potential race condition. [1/2] xattr_on_jffs2.kernel.version-5.patch [2/2] xattr_on_jffs2.utils.version-5.patch Signed-off-by: NKaiGai Kohei <kaigai@ak.jp.nec.com> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 03 5月, 2006 1 次提交
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由 David Woodhouse 提交于
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 21 4月, 2006 1 次提交
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由 David Woodhouse 提交于
Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 07 11月, 2005 4 次提交
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由 Thomas Gleixner 提交于
Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Ferenc Havasi 提交于
The goal of summary is to speed up the mount time. Erase block summary (EBS) stores summary information at the end of every (closed) erase block. It is no longer necessary to scan all nodes separetly (and read all pages of them) just read this "small" summary, where every information is stored which is needed at mount time. This summary information is stored in a JFFS2_FEATURE_RWCOMPAT_DELETE. During the mount process if there is no summary info the orignal scan process will be executed. EBS works with NAND and NOR flashes, too. There is a user space tool called sumtool to generate this summary information for a JFFS2 image. Signed-off-by: NFerenc Havasi <havasi@inf.u-szeged.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Ferenc Havasi 提交于
Remove support for virtual blocks, which are build by concatenation of multiple physical erase blocks. For more information please read the MTD mailing list thread "[PATCH] remove support for virtual blocks" Signed-off-by: NFerenc Havasi <havasi@inf.u-szeged.hu> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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由 Artem B. Bityutskiy 提交于
From: David Woodhouse <dwmw2@infradead.org> Signed-off-by: NArtem B. Bityutskiy <dedekind@infradead.org> Signed-off-by: NThomas Gleixner <tglx@linutronix.de>
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