linux.git/fs/ecryptfs/file.c, branch v2.6.24

eCryptfs: remove unused functions and kmem_cache

2007-10-16T16:43:12+00:00

The switch to read_write.c routines and the persistent file make a number of
functions unnecessary.  This patch removes them.

Signed-off-by: Michael Halcrow 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

eCryptfs: make open, truncate, and setattr use persistent file

2007-10-16T16:43:12+00:00

Rather than open a new lower file for every eCryptfs file that is opened,
truncated, or setattr'd, instead use the existing lower persistent file for
the eCryptfs inode.  Change truncate to use read_write.c functions.  Change
ecryptfs_getxattr() to use the common ecryptfs_getxattr_lower() function.

Signed-off-by: Michael Halcrow 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

eCryptfs: update metadata read/write functions

2007-10-16T16:43:12+00:00

Update the metadata read/write functions and grow_file() to use the
read_write.c routines.  Do not open another lower file; use the persistent
lower file instead.  Provide a separate function for
crypto.c::ecryptfs_read_xattr_region() to get to the lower xattr without
having to go through the eCryptfs getxattr.

Signed-off-by: Michael Halcrow 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

eCryptfs: remove assignments in if-statements

2007-10-16T16:43:12+00:00

Remove assignments in if-statements.

Signed-off-by: Michael Halcrow 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

eCryptfs: Use generic_file_splice_read()

2007-10-16T16:43:12+00:00

eCryptfs is currently just passing through splice reads to the lower
filesystem.  This is obviously incorrect behavior; the decrypted data is
what needs to be read, not the lower encrypted data.  I cannot think of any
good reason for eCryptfs to implement splice_read, so this patch points the
eCryptfs fops splice_read to use generic_file_splice_read.

Signed-off-by: Michael Halcrow 
Reviewed-by: Jens Axboe 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sendfile: remove .sendfile from filesystems that use generic_file_sendfile()

2007-07-10T06:04:13+00:00

They can use generic_file_splice_read() instead. Since sys_sendfile() now
prefers that, there should be no change in behaviour.

Signed-off-by: Jens Axboe

eCryptfs: delay writing 0's after llseek until write

2007-05-24T03:14:15+00:00

Delay writing 0's out in eCryptfs after a seek past the end of the file
until data is actually written.

http://www.opengroup.org/onlinepubs/009695399/functions/lseek.html

``The lseek() function shall not, by itself, extend the size of a
file.''

Without this fix, applications that lseek() past the end of the file without
writing will experience unexpected behavior.

Signed-off-by: Michael Halcrow 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

header cleaning: don't include smp_lock.h when not used

2007-05-08T18:15:07+00:00

Remove includes of  where it is not used/needed.
Suggested by Al Viro.

Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc,
sparc64, and arm (all 59 defconfigs).

Signed-off-by: Randy Dunlap 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] eCryptfs: set O_LARGEFILE when opening lower file

2007-03-01T22:53:37+00:00

O_LARGEFILE should be set here when opening the lower file.

Signed-off-by: Michael Halcrow 
Cc: Dmitriy Monakhov 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

[PATCH] eCryptfs: open-code flag checking and manipulation

2007-02-12T17:48:37+00:00

Open-code flag checking and manipulation.

Signed-off-by: Michael Halcrow 
Signed-off-by: Trevor Highland 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds