and implement all status related change function. the individual
file system change will provide in other upcoming patchset.
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I8fde9db8eba9586e9c8da078b67e020c26623cf4
and move the socket special process from fstat/nx_vfcntl/ to file_fstat/file_vfcntl
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ia10341538488ba3a8444df8e73fb5257b2a1f512
Note: all attributes is guarded by PSEUDOFS_ATTRIBUTES to save the space
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I664d60382e356068fd920f08aca5b4a49d8d92a9
since the decision is already done at open time(from path to fd)
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Idc1df3c1d7fe60927b0643173f3f40895aaffd4c
Note: this patch can get file path from root pseudo file handle,
but a general infrastructure is setup for other file system too.
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I86cd79ebb741f2f43fdd398bb7498c40687d949b
it's more simple to reuse the resolve argument as the recursive count
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I826b2fef3af8b12aae230e4766ab09f8de988f8a
ensure the behaviour is same in all ioctl function variant
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ie67cfbc579004c8488ef5004c9be7fb179e77041
Fix bug that select() did not return when the nfds argument
was set to a negative value. The specification is that -1 is
set to the return value and EINVAL is set to errno.
let's call either nx_dup/nx_dup2 or file_dup/file_dup2
instead just like other fs api: xxx->nx_xxx->file_xxx
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I1aacfb9e25dc7b3fcb0345ff7b269b1953a01e5b
the argument passed to file_dup2 doesn't always come from task file list
so it doesn't make sense to hold the file list lock and then it is better
to do the protection in the new function files_dupfd2
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ibf02cea9b0b275e7472f9c04fd66b9242285b957
these functions are the implementation detail and then
don't need expose to external
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ief832391d5b42d1f1645907eb465631650490234
the kernel user should call file_open directly instead
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I5bf7f661006f5d43739bc8618abfb4b983fde78d
on the other hand, open/nx_open call file_open instead
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I66990a77cdeb6ff18f7bf48a65bbc7b701dad552
let's replace the content of file in place instead
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I538910d55815c7aec656c05dba4eab2fa1d6d964
NULL inode passed to files_allocate doesn't mark file struct in the
allocated state, so other threads which invovle in file allocation
(e.g. open or dup) may allocate the same file struct again.
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I53ff876eae3c7a1e311e7f671686b73a4b4ef891
since the internal function normally return the error code directly
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ifccbcfb07d2f8f7d5fef1b2a867538f51b73655c
