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History for barebox / fs / ramfs.c

2018-10-08	383b934 Browse files » fs: improve ramfs_truncate speed ... During sequential writes into single file, fs layer is consequently calling ramfs_truncate() function. When file size grows ramfs_truncate() takes more and more time to complete, due to interations through all already written data chunks. As an example loading ~450M image using usb fastboot protocol took over 500s to complete. Use ramfs_find_chunk() function to search for last chunk of data in ramfs_truncate() implementation, which saves a lot of loop iterations. As a result loading ~450M image using usb fastboot protocol takes around 25s now. Tested-by: Maciej Zagrabski <m.zagrabski@grinn-global.com> Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Marcin Niestroj authored on 26 Sep 2018 Sascha Hauer committed on 8 Oct 2018
2018-09-27	5154902 Browse files » fs: ramfs: make chunk counting in truncate() better readable ... In ramfs_truncate() "newchunks" denotes the number of chunks we want to have after the call. We decrease that number while iterating over the existing chunks and decrease it further with every newly allocated chunk until "newchunks" is zero. This is a bit hard to read. Instead we drop the decreasing while iterating over existing chunks and increase "oldchunks" while allocating until it reaches "newchunks". This is mainly done to make the next patch easier. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 27 Sep 2018
2018-09-26	a451447 Browse files » fs: ramfs: Free data when file is unlinked ... Since the switch to dentry cache implementation the memory is no longer freed when a file in ramfs is deleted. Fix this. Fixes: b283b72639 ("fs: ramfs: Switch to dentry cache implementation") Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 26 Sep 2018
2018-08-13	5c7690f Browse files » Merge branch 'for-next/memcmds' Sascha Hauer committed on 13 Aug 2018
2018-08-10	90245eb Browse files » fs: ramfs: get chunks zero initialized ... Initialize new chunks to zero, otherwise a ->truncate call may result in uninitialized data in files. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 10 Aug 2018
2018-07-11	b283b72 Browse files » fs: ramfs: Switch to dentry cache implementation ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Jul 2018
2015-10-01	e69b95f Browse files » fs: syntax fix in ramfs.c ... Signed-off-by: Stefan Christ <s.christ@phytec.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Stefan Christ authored on 30 Sep 2015 Sascha Hauer committed on 1 Oct 2015
2015-07-02	177cab0 Browse files » treewide: fix 'new blank line at EOF' formatting error ... Signed-off-by: Antony Pavlov <antonynpavlov@gmail.com> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Antony Pavlov authored on 30 Jun 2015 Sascha Hauer committed on 2 Jul 2015
2015-03-09	6977292 Browse files » fs: rename inode member of struct filep to priv ... Because that's what it is. 'inode' will become confusing once we support real inodes. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 9 Mar 2015
2012-09-17	77322aa Browse files » Treewide: remove address of the Free Software Foundation ... The FSF address has changed in the past. Instead of updating it each time the address changes, just drop it completely treewide. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 17 Sep 2012
2012-09-04	ad6c28a Browse files » ramfs: add symlink and readlink support ... Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Jean-Christophe PLAGNIOL-VILLARD committed on 4 Sep 2012
2012-06-30	3e50382 Browse files » use loff_t for file offsets ... This is a first step for 64bit file support: Make the file sizes/offsets 64bit. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 30 Jun 2012
2012-05-16	011801d Browse files » ramfs: rember last accessed chunk ... Writing big files takes longer and longer because of the chunk list By storing a pointer of the recent used chunk in the inode, access times are improved. Testet on with tftp 10M: OMAP4 chunk size 4096: 12244ms 8192: 4239ms patched 2647ms 2785ms i.MX35 chunk size 8192: 7225ms patched 2691ms No impact on much smaller files seen Signed-off-by: Jan Weitzel <j.weitzel@phytec.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Jan Weitzel authored on 16 May 2012 Sascha Hauer committed on 16 May 2012
2012-02-25	3a92711 Browse files » fs: get fs device using container_of ... This reduces the usage of dev->type_data. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 25 Feb 2012
2011-12-05	14273e7 Browse files » ramfs: increase chunk size to 8192 bytes ... dlmalloc seems to work more efficient with this chunk size. Copying a bigger file (3MB) takes 271ms vs. 125ms on a i.MX27 board. Even bigger chunk sizes do not further improve performance. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 5 Dec 2011
2011-04-11	5c44e3a Browse files » fs: remove unused field 'type' from struct fs_driver_d ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 11 Apr 2011
2011-03-10	c28810e Browse files » ramfs: increase chunk size to 4 kbyte ... This greatly increases speed on ramfs. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 10 Mar 2011
2010-10-21	47ca335 Browse files » ramfs: sparse fixes ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 21 Oct 2010
2009-07-21	ec31813 Browse files » make sure ramfs/devfs are initialised when needed ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 21 Jul 2009
	6459b13 Browse files » Get rid of DEVICE_TYPE_FS usage ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 21 Jul 2009
	4adfb9c Browse files » ramfs: add missing remove function ... Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Sascha Hauer committed on 21 Jul 2009
2008-12-18	c3dbf6e Browse files » remove warning ... Signed-off-by: Frederic RODO <fred.rodo@gmail.com> fredo authored on 8 Dec 2008 Sascha Hauer committed on 18 Dec 2008
2008-06-06	ee6d36a Browse files » - introduce ioctl call ... - pass open/close/lseek through to drivers Sascha Hauer committed on 6 Jun 2008
2007-10-04	faf5efa Browse files » change files and dirs to rwxrwxrwx Sascha Hauer committed on 4 Oct 2007
2007-10-03	e5e965b Browse files » change files and directories to 0777 Sascha Hauer committed on 3 Oct 2007
2007-10-03	0fb965d Browse files » remove debug printf, replace with debug Sascha Hauer committed on 3 Oct 2007
2007-09-28	b3dc734 Browse files » declare lots of functions static Sascha Hauer committed on 28 Sep 2007
2007-09-27	2d02f7c Browse files » fix bug in ramfs when creating files whose parents do not exist Sascha Hauer committed on 27 Sep 2007
2007-07-05	75a10b9 Browse files » svn_rev_706 ... add file headers Sascha Hauer authored on 5 Jul 2007 Sascha Hauer committed on 5 Jul 2007
2007-07-05	e694adc Browse files » svn_rev_420 ... - do more POSIX: - use DIR instead of struct dirent - use (struct dirent)->d_name instead of (struct dirent)->name - switch to a new layout for U_BOOT_CMD: - use C99 initializers to be able to add more fields to the command struct - add aliases for commands (needed mainly for help -> ? and test -> [ - This is not done for all commands yet, but the compiler will tell you ;) Sascha Hauer authored on 5 Jul 2007 Sascha Hauer committed on 5 Jul 2007