- 25 5月, 2006 1 次提交
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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 1 次提交
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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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- 22 5月, 2006 1 次提交
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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 8 次提交
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由 David Woodhouse 提交于
We can't use jffs2_scan_dirty_space() because it doesn't do any locking; it's only for use at scan time -- hence the 'scan' in the name. Also, don't allocate refs while we have c->erase_completion_lock held. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
We don't allocate this locally any more -- it's given to us and owner by our caller. Also improve the debug messages a little. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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由 David Woodhouse 提交于
Make sure we allocate a ref for any dirty space which exists between nodes which we find in an eraseblock summary. 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
It should all be counted as dirty space, not wasted and _definitely_ not unchecked. 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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- 20 5月, 2006 1 次提交
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由 David Woodhouse 提交于
This improves the time to mount 512MiB of NAND flash on my OLPC prototype by about 4%. We used to read the last page of the eraseblock twice -- once to find the offset of the summary node, and again to actually _read_ the summary node. Now we read the last page only once, and read more only if we need to. We also don't allocate a new buffer just for the summary code -- we use the buffer which was already allocated for the scan. Better still, if the 'buffer' for the scan is actually just a pointer directly into NOR flash, we use that too, avoiding the memcpy() which we used to do. Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 17 5月, 2006 1 次提交
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由 David Woodhouse 提交于
fs/jffs2/summary.c: In function ‘jffs2_sum_write_data’: fs/jffs2/summary.c:658: warning: format ‘%zd’ expects type ‘signed size_t’, but argument 4 has type ‘uint32_t’ Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 13 5月, 2006 3 次提交
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由 KaiGai Kohei 提交于
When jffs2_sum_process_sum_data() found a JFFS2_NODETYPE_XATTR which has duplicate xid and older version, an error was returned without appropriate process. In the result, mounting filesystem is failed. This patch fix this problem. If jffs2_setup_xattr_datum() returned -EEXIST, the caller marks this node as DIRTY_SPACE(). [1/2] jffs2-xattr-v5.2-01-fix-duplicate-xdatum.patch Signed-off-by: NKaiGai Kohei <kaigai@ak.jp.nec.com>
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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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- 12 5月, 2006 1 次提交
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由 Jesper Juhl 提交于
Reduce the nr. of pointer dereferences in fs/jffs2/summary.c Benefits: - micro speed optimization due to fewer pointer derefs - generated code is slightly smaller - better readability (The first two sound like a compiler problem but I'll go with the third. dwmw2). Signed-off-by: NJesper Juhl <jesper.juhl@gmail.com> Signed-off-by: NAndrew Morton <akpm@osdl.org> Signed-off-by: NDavid Woodhouse <dwmw2@infradead.org>
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- 12 4月, 2006 1 次提交
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由 Randy Dunlap 提交于
Fix printk format warnings in jffs2. Signed-off-by: NRandy Dunlap <rdunlap@xenotime.net> 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
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
Simplify the debugging code further. Update the TODO list Signed-off-by: NArtem B. Bityutskiy <dedekind@infradead.org> 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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