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* fs: efivars: read the attributes on the second get_variable()Michael Olbrich2015-07-271-3/+4
| | | | | | | | Some EFI get_variable() implementations don't set the attributes when returning EFI_BUFFER_TOO_SMALL. Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: efivars: add more error checkingMichael Olbrich2015-07-271-4/+12
| | | | | Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: efivars: use xstrdup_* when appropriateMichael Olbrich2015-07-271-3/+3
| | | | | Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: rename inode member of struct filep to privSascha Hauer2015-03-091-5/+5
| | | | | | | Because that's what it is. 'inode' will become confusing once we support real inodes. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: efivars: implement write supportLucas Stach2014-12-091-0/+105
| | | | | | | | Implement the standard FS ops for writing/manipulating efivars. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: efivars: don't store attributes in fileLucas Stach2014-12-091-7/+6
| | | | | | | | | We don't have a use-case yet where we need to manipulate the attributes of a variable and it confuses "normal" users of the variables. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: efivar: preserve more info in inodeLucas Stach2014-12-091-5/+10
| | | | | | | Preserve info needed for easy manipulation of variables. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: efivar: move variable discovery into probeLucas Stach2014-12-091-51/+58
| | | | | | | So we can manipulate things easier. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: efivar: switch to standard list implementationLucas Stach2014-12-091-21/+13
| | | | | | | | Cleans the code a bit and will allow us to implement removing of vars quite a bit easier. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: efivars: cosmetic changesLucas Stach2014-12-091-4/+4
| | | | | Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
* fs: implement EFI variable filesystem driverSascha Hauer2014-07-161-0/+340
This implements a filesystem for accessing EFI variables. It is compatible to the Linux Kernel efivarfs filesystem. Currently the variables can only be accessed readonly. Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
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